Hitachi 61HDX98B Manual
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Hitachi 61HDX98B Manual

Hitachi 61HDX98B Manual

Digital television training
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NOVEMBER, 1 999
Prepared by: ALVIE RODGERS C .E.T .
This training package is geared specifically to the 61HDX98B HDTV. However, most of
the material will cross over to the 60SDX88B progressive scan HDTV capable set. The
necessary understanding that the 60SDX88B requires a Set-Top-Box to receive SDTV and
HDTV signals is important. The 60SDX88B does NOT have a DM-1 module. This module
is built into the 61HDX98B which allows this set to receive all ATSC formats as well as
Direct TV, NTSC, SDTV or HDTV. It does not have Component Inputs.
The 60SDX88B has a built in FLEX converter that translates any input into either 480P for
NTSC or SDTV and/or 1080I for HDTV. It does have Component Inputs.
The Power Supplies are the same for either set.
The Deflection circuit is very similar between the two sets.
The Signal PWB is very similar between the two sets, minus the differences mentioned
above.
Digital Convergence is the same between the two sets.
61HDX98B is a DP-85 chassis with a 16X9 aspect screen.
60SDX88B is a DP-86 chassis with a 3X4 aspect screen.
SEE DP-86 TRAINING SECTION IN THE BACK OF THE PACKAGE.
CONTENT S...
1 999 DP-85 HDTV Projection T elevision Information
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Summary of Contents for Hitachi 61HDX98B

  • Page 1 HDTV signals is important. The 60SDX88B does NOT have a DM-1 module. This module is built into the 61HDX98B which allows this set to receive all ATSC formats as well as Direct TV, NTSC, SDTV or HDTV. It does not have Component Inputs.
  • Page 2 DP-85 CHASSIS TRAINING and INFORMATION” HDTV CONTENTS ”SECTION” “PAGE” 1): GENERAL BLOCK DIAGRAMS, SECTION: • Power Supply Block Explanation --------------------------------------------------------- 01-01 • Power Supply Block Diagram ------------------------------------------------------------- 01-02 • DM-1 Module Front End Block Explanation -------------------------------------------- 01-03 • DM-1 Module Front End Block Diagram ------------------------------------------------ 01-05 •...
  • Page 3 DP-85 CHASSIS TRAINING and INFORMATION” HDTV CONTENTS ”SECTION” “PAGE” • Digital Convergence OVERLAY Information -------------------------------------------- 06-02 • Digital Convergence OVERLAY DIMENSIONS --------------------------------------- 06-03 • Digital Convergence REMOTE CONTROL Button Identification ------------------- 06-04 7): MICROPROCESSOR • Microprocessor Port Definitions ..................07-01 • Microprocessor Data Port Block Diagram ...............07-03 •...
  • Page 4 DP-85 CHASSIS TRAINING and INFORMATION” HDTV CONTENTS ADJUSTMENTS CONTINUED ”SECTION” “PAGE” • Red and Blue 7X5 Adjustment ......................08-34 • Green 13X9 Adjustment ........................08-35 • Red and Blue 13X9 Adjustment ......................08-36 • Storing New Dig. Conv. Data ......................08-37 • Magic Focus Initialization ........................08-38 SMOOTH MODE Change Screen Format to SMOOTH Mode and repeat steps below.
  • Page 5 BLOCK DIAGRAM EXPLANATION POWER SUPPLY BLOCK The 61HDX98B utilizes two switching power sup- circuits. • plies. 6.3V to drive the CRT Heaters. • DP-85's stand by switching mode operation is different +28V for the Convergence, Velocity modulation from AP-7X and 8X chassis's. Switching frequency of and Audio Out circuit.
  • Page 6 DP85 POWER SUPPLY BLOCK DIAGRAM POWER DEFLECTION P.W.B. POWER SUB P.W.B. STAND BY SWITCHED Def. +B V1&V2 +33VS Reg (130V) Reg CRT & Power Fail Line 220V Vm Out Filter L. NB Sw. Reg. Heater 6.3V Fuse A12V Sw. Reg. Convergence 9V Sw.
  • Page 7 BLOCK DIAGRAM EXPLANATION FRONT END The 61HDX98B utilizes a non-repairable Front End line labeled Composite Video to the Signal Selec- Assembly called the DM-1 Module. This module con- tor IC which selects the appropriate signal accord- tains the main System control center, NTSC Front ing to the consumer’s choice.
  • Page 8 BLOCK DIAGRAM EXPLANATION FRONT END MPEG VIDEO DECODER, NTSC UPCONVER- SION, OSD: What ever signal is requested by the consumer as the source for viewing is processed through this block and is output to the YUV D/As. YUV/DAs: This block takes the digital signals provided to it and converts them to an analog signal which is usable by the signal processing circuits.
  • Page 9 DP85 FRONT END BLOCK DM-1 Module IR from Ft. Panel Phone Satellite Dimmer, AD, Key In From Main Micro Card Satellite SD-A/V MODEM NRSS/ISO7815 SATELLITE SATELLITE TUNER/IF LINK LINK DRAM ARM/ Terrestrial TRANSPORT HD/NTSC HDTV Cable TUNER/IF LINK SPLITTER Data MPEG/AC-3 AUDIO Address...
  • Page 10 BLOCK DIAGRAM EXPLANATION A/V SELECTOR C. VIDEO (MAIN) and R/L (AUDIO MAIN): NTSC Video and NTSC Audio is routed from the DM-1 Block diagram. They are shown in the Block Diagram as one line, but they are separate signals. Anytime a signal is routed from the DM-1 or going to the DM-1 module, they must be sent through a DM-1 I/F block.
  • Page 11 A/V SELECTOR BLOCK DP85 CHASSIS TERMINAL P.W.B. C. Video (Main) R/L (Audio Main) PinP Video Video 4 V4, S4, L/R4 to PinP Unit DM-1 PinP Video and MonoAudio B4558 Selected L/R (NTSC Main Audio) Video D YC Comp. Video (Main) R/L (Main) To 3DYC RF from DM-1...
  • Page 12 BLOCK DIAGRAM EXPLANATION SYSTEM CONTROL AND SIGNAL PROCESSING the signal in one of 4 ways. MAIN VIDEO FROM SELECTOR IC: Normal: This will display a standard 4X3 picture At the bottom left hand side is shown the Main Video with black panels on each side of the picture. from Selector label.
  • Page 13 BLOCK DIAGRAM EXPLANATION SYSTEM CONTROL AND SIGNAL PROCESSING selection to activate AFC. of a quad Or Gate and outputs the signal to be superim- posed upon the video signal path from the DM-1 Mod- MAIN SYNC DET. = Input; This input is used for Ser- ule.
  • Page 14 DP-85 CHASSIS SYSTEM CONTROL & SIGNAL PROCESSING BLOCK 1HYIQ 1 H Composite Digital OSD / Busy Sync AD8056 DM-1 TV uCOM PinP VIDEO/ Microprocessor Unit CHROMA HBlk F Panel Unit S. Wide Main Sync Det DEMOD Cut. Off PinP Sync Det D.
  • Page 15 BLOCK DIAGRAM EXPLANATION 2H VIDEO The 2H Video PWB is similar to the Rainfor- est circuits used in the past. The YUV/YIQ (480P) and/or the Y-PR/PB (1080I) is routed through another DM-1 Interface IC for noise cancellation and level shifting and into the Rainforest chip, IX01.
  • Page 16 2 H VIDEO BLOCK DP-85 CHASSIS 2H VIDEO P.W.B. OSD RGB RGB PROCESSOR YUV/YIQ/ Y PB PR TA1276AN 2.14 HV SYNC Clamp H/V Blk. YPBPR YUV/YIQ/ Y PB PR DM-1 SPANEL DETECT Side Panel HV. Blk. 2.14 HV SYNC HBLK PH Gen.
  • Page 17 The 61HDX98B deflection circuit differs from con- Busy notifies the sub Microprocessor I901 which in ventional Hitachi product. It utilizes in a sense, two turn notifies the DM-1 module that the DCU has en- horizontal output circuits. One for Deflection and on tered the DCAM.
  • Page 18 There are 8 sensors located on the internal outside VERTICAL OUTPUT: edges of the cabinet. These Photo Cells receive the The vertical output utilized in the 61HDX98B operates light patterns being generated during MAGIC FOCUS differently from previous chassis. This circuit utilizes or SENSOR INITIALIZATION and deliver this volt- a +13V and a –13V to generate the waveform to drive...
  • Page 19 BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK vice Switch is pressed. This switch is located on the deflection PWB. By removing the front speaker grill, the Service Technician has access to this switch. CONV. OUT: The Convergence output block represents the two (2) Convergence output IC’s.
  • Page 20 DP-85 DEFLECTION BLOCK DIAGRAM Cut Off To Deflection Yokes To Deflection Yokes 32Kv HV Control HV DRIVE HV OUT High Voltage (uPC1344C) (MC3415IP) (IMB12-140) Transformer Focus HIGH THO1 DC couple (9KV) VOLTAGE FOCUS VERTICAL REGULATION PACK Screen S Corrected DETECTOR (700V) LA7648 V-SAW...
  • Page 21 DP-85 CRT PWB BLOCK DIAGRAM Beam Shape, Beam Alignment, Focus, VM Coil, Deflection and Convergence Yokes 220V CPT P.W.B. (R) VIDEO OUTPUT 220V CPT P.W.B. (G) VIDEO OUTPUT 220V CPT P.W.B. (B) VIDEO OUTPUT 220V VM OUT P.W.B. VM OUT SCREEN Def.
  • Page 22 AUDIO OUTPUT SECTION DP-85 CHASSIS Headphone Jack From DM-1 Perfect Audio/Video Volume Selector IC L/R LS/RS/C/LFE From DM-1 TL/TR DM-1 HL/R Headphone Fixed Vari Out L/R FR Ext TL/TR FL Ext RL/RR CONTROL PinP L/R PinP L/R From to Spk Selector IC Clock Data...
  • Page 23 DP-85 REAR PANEL (61HDX98B) DSS IN SMART DM-1 MODULE CARD Rear Panel 1 SLOT AC-3 Jack Telephone Interface ANT B ANT A REAR SPEAKER ONLY S - V I D E O S - V I D E O V I D E O...
  • Page 24 DP-85 CHASSIS 4 MODES TO DISPLAY A (4x3) IMAGE ON (16X9) DISPLAY DM-1 Module controls the video content for Normal, Full and Fill modes, while the deflection circuit is manipulated for the Smooth Wide mode. NORMAL MODE (4x3) FULL MODE (4x3) Side Panel Side Panel Slightly...
  • Page 25 DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN BLOCK I901 ShutDown Pin (7) I905 on Power Supply Photocoupler Driver & Output IC Shut Down SCR +3.3V Short Det. +5V Short Det. -5V Loss Det. +9V Short Det. +5V Too Hi Det. +3.3Vs Too Hi Det. +9V Too Hi Det.
  • Page 26 DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN DIAGRAM DIGITAL & SIGNAL POWER SUPPLY SHUT-DOWN DIGITAL & SIGNAL Active High POWER SUPPLY SHUT-DOWN I901 Active Low ShutDown Pin (7) I905 on Power Supply Photocoupler Q913 Driver & ShutDown Output IC S.C.R. D908 Red LED Run B+ Shut Down...
  • Page 27 DP-85 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES (SUB POWER PWB) DIGITAL POWER SUPPLY 10 GREEN L.E.D.s and 1 RED L.E.D. (11 Total L.E.Ds. for visual trouble sensing observation) LNB Power Audio Audio TV 9V TV 5V +12VS 13V/19V +5VS -5VS +3.3VS D3.3V Center 21V...
  • Page 28 DP-85 DIGITAL CIRCUIT POWER SUPPLY DISTRIBUTION DIAGRAM AC Plug Live Cold D919 : F28 REAR +28V Audio Protector Rectifier +28V E994 : 7K AC Input +28V : D911 CENTER +21V D920 : C21 Protector Audio Rectifier FUSE +21V : D912 E995 : 7K +21V F901...
  • Page 29 DP-85 DEFLECTION POWER SUPPLY SHUTDOWN BLOCK DIAGRAM Deflection B+ (130V) Deflection B+ (130V) Excessive Current Det. Excessive Voltage Det. DP23 IP01 QP05 ShutDown Pin (7) IP06 ShutDown on Power Supply Photocoupler S.C.R. Driver & Output IC QP06 DP25 DP34 X-RAY 220V Short Det.
  • Page 30 DP-85 DEFLECTION POWER SUPPLY SHUTDOWN DIAGRAM Deflection B+ (130V) RP31 Excessive Current Det. TP91 DP11 0.47 Deflection B+ 130V CP16 Deflection B+ (130V) Excessive Voltage Det. QP04 DP18 Deflection Flyback Excessive Current Det. DP17 Flyback RH23 DP19 TH01 DP23 IP01 QH03 QP05 ShutDown Pin (7)
  • Page 31 DP-85 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES DEFLECTION PWB 5 GREEN L.E.D.s and 1 RED L.E.D. (6 Total L.E.Ds. for visual trouble sensing observation) 130V +28V Deflection B+ -M13V -M28V RP39 RP37 RP23 RP26 RP46 RP38 DP15 DP20 DP22 DP16 DP21 ALL GREEN L.E.D.s Start Up or Run...
  • Page 32 DP-85 DEFLECTION POWER SUPPLY DISTRIBUTION DIAGRAM DP36, Live Cold DP37:<4V Video Protector Rectifier Power Supply +220V EP92: 4K +220V:DP07 Block DP35: <4V DP32: >7.4V Protector Rectifier Regulator Heater Protector +7V:DP08 +6.3V: IP02 EP93: 5K +6.3V EP91: 4K DP15: +13V DP30: <5V DP28: >20V Protector Regulator...
  • Page 33 DP-85 DEFLECTION Vcc PRODUCTION CIRCUIT SIGNAL PWB SUB POWER PWB DEFLECTION PWB PQD2 From I907 A12V Reg. A12V or STBY +12V A12V Start Up Power PQS1 DM-1 I001 Other Power Module Slave Micro Q007 On/Off Circuits QP08 Power On/Off Power On/Off by Remote or Front Pannel Power ON...
  • Page 34 DP-85 SERIES CHASSIS HORIZONTAL DRIVE CIRCUIT H. Def. Yoke R I702 Q701 AVCC H Out H. Def. Yoke G Switched AVCC H. Def. Yoke B To Side Pin Circuit Osc. FBP In H. Sync In To Dynamic Focus To Deflection Loss PDD1 T752 Q751...
  • Page 35 DP-85 SERIES CHASSIS VIDEO SIGNAL PATH (Main & Terminal) Terminal U002 PST2 PinP V Out I301 PinP V PST1 Front Control PWB Q301 Comp/S-Y Yout1 S Det. Avx 4 In Aux Input 4 Q302 S-Y4 3DYC Cout1 S-4 In S-C4 Comb Filter PinP...
  • Page 36 DP-85 CHASSIS A.B.L. CIRCUIT DIAGRAM QX14 IX01 RX79 PSZ2 Rainforest RX78 RX80 DX02 RX82 CX21 CX20 DX01 RX81 Signal Sub CX39 CX24 PSZ1 SDA2 SDA2 SCL2 SCL2 See uP Data RH22 To Anodes TH01 Signal High Voltage B+ Path RH23 130V V2 CH18 Focus...
  • Page 37 DP-85 SWEEP & AC LOSS DETECTION CIRCUIT RN05 Vertical RN04 RN03 Blanking DN01 From Horz. 13V Loss/ QN01 QN02 Pin 9 I601 CN01 Start Up Spot Killer RN01 CN02 V. Blk. DN02 DN03 RN02 QH02 24V P/P RN07 RH40 RN10 QN04 RN09 Horizontal...
  • Page 38 DP-85 SERIES CHASSIS AUDIO SIGNAL PATH (Main, Terminal & Audio Output) I301 AVX 1 Terminal PWB Front Control PWB Avx 4 In Aux Input 4 Lum/Audio AVX 2 Selector IC NOTE: The J31101 Lum type connector Pins are PMT1 I202 AVX 3 opposite of PMT1.
  • Page 39 DP85 SURROUND AUDIO SIGNAL PATH PSU1 NOTE: ISO1 See Main Audio The connector Pins on Selector/Signal the DM-1 are backwards PinP Audio compared to PMS1. Trans- PMS1 IS10 ISO8 mitter Right Selected Audio Total Audio Perfect Volume Cont IS09 Selected Audio Left Total QS03...
  • Page 40 DP-85 Series Chassis AUDIO and VIDEO MUTE Circuit Also see Mute Circuit Diagram (Surround and Audio Output PWB) A12V R096 D011 D010 C012 R097 Q009 R095 Q010 2H Video PWB From QZ13 and IZ07 R099 R098 HVBlk Rainforest R094 V. Mute V Mute 2 IX01 PSZ2...
  • Page 41 DP-85 MUTE CIRCUIT DIAGRAM (SURROUND PWB) Also see Audio and Video Mute Circuit Diagram Also see Mute Circuit Diagram (Audio Output PWB) CS73 RSH3 CS86 Transmiter Right Transmiter Right PSU1 QS05 DS20 DS21 RSC4 VMUTE2 RSC6 CS74 RSH4 CS87 Transmiter Left Transmiter Left QS06 DS22...
  • Page 42 DP-85 MUTE CIRCUIT DIAGRAM (AUDIO OUTPUT PWB) Also see Audio and Video Mute Circuit Diagram Also see Mute Circuit Diagram (Surround PWB) C401 R412 C403 Front I401 Front Right Right PAS1 Q401 D412 R414 Front Audio MUTE Output IC R416 C402 R413 C404...
  • Page 43 DP-85 CHASSIS "DIGITAL CONVERGENCE" INTERCONNECTION CIRCUIT DIAGRAM Memory Adj B Adj B D/H OSD Sel PSZ1 OSD B I105 DM-1 I001 I501 QX17 Q012 I002 Dig OSD B QX33 8 BTX OSD B Rainforest Main Up Adj G Adj G QX16 Q013 OSD G...
  • Page 44 DIGITAL CONVERGENCE ALIGNMENT When performing a complete Digital Convergence Alignment, FILL MODE (4x3) it is necessary to utilize an Overlay. The 61HDX98B will require 2 (two) Cropped different overlays. One overlay will be utilized for any of the following: 1.) Normal mode 2.) Full mode...
  • Page 45 DIGITAL CONVERGENCE OVERLAY DIMENSIONS DIGITAL CONVERGENCE OVERLAY FULL MODE 1350 H. SIZE 20 88 113.4 113.4 113.4 113.4 113.4 113.4 113.4 113.4 Centering Offset Part Number H312182A V. SIZE DIGITAL CONVERGENCE OVERLAY SMOOTH MODE 1350 H. SIZE 46.7 47.8 95.5 95.5 95.5 95.5...
  • Page 46 (5) Down, (6) Right " " = "RED adjust" "INPUT" = "BLUE adjust" Digital Cursor Blinks RED INPUT C.S. Digital Cursor Blinks BLUE 7x5 adjustment mode 13 x 9 adjustment mode (Press 5 times) HITACHI (Press 5 times) CLU-614MP PAGE 06-04...
  • Page 47 DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTION Pin No. Port Identification Function Active HSYNC OSD H. Pulse Receives Horizontal Blanking pulses 5VP/P for Service OSD positioning Pulse VSYNC OSD V.Pulse Receives Vertical Blanking pulses 5VP/P for Service OSD positioning Pulse Receives the AFC S-Curve signal produced by the PinP tuner indicating the accuracy of the PinP tuning.
  • Page 48 KEYIN Not Used. KEYIN Notification of the OEM in which the chassis is used. Diode D002 identifies it as Hitachi by feeding back Key Out2 pulses from pin Data Power ON/OFF When the DM-1 Module instructs the Slave Micro. to turn ON, this output goes high...
  • Page 49 DP-85 SYSTEM CONTROL PORT DESCRIPTION U001 CLOCK AC (50/60 Hz) I001 PINP TUNER PIP Sync Det TIM2 DATA Side Panel APL ENABLE (N/A) Dimmer LOCK CH Change Mute Smooth Wide P10/ H.BLK-HP PWM4 KEYIN Arm Up Request INT1 EEPROM I002 Clock SCLK DM-1...
  • Page 50 DP-85 CHASSIS MICROPROCESSOR DATA COMMUNICATIONS CIRCUIT DIAGRAM U002 I008 Sub Deflection PWB PinP SDA2 1H Video/ IOO1 I702 Chroma UNIT Micro Processor SCL2 Sweep Control PSD1 PDD2 SDA2 SCL2 SCL2 SCL2 SDA2 SDA2 NOTE: J22600 Lum type connector SCL2 3D Y/C Pins on the DM-1 are UNIT SDA2...
  • Page 51 CLEAR to start Convergence Alignment SMOOTH NTSC Magic Focus Initialize FULL NTSC Magic Focus Initialize SMOOTH NTSC It is necessary to follow the order when performing an alignment on the 61HDX98B P A G E 0 8 - 0 1...
  • Page 52 DP-85 I2C SERVICE MODE Page 1 of 4 Total of 117 Adj. with 13 Field Adjustments ADJ. INIT. CONTROLLED ADJUSTMENT ITEMS ADJ. VARIABLE RANGE (Text) RANGE VALUE DEVICE SERVIC SERVICE Off/On SUBBRT SUB BRIGHTNESS 0~255 YES -40IRE to +40IRE TA1276AN HBLKPH H.
  • Page 53 DP-85 I2C SERVICE MODE Page 2 of 4 Total of 117 Adj. with 13 Field Adjustments ADJ. INIT. CONTROLLED ADJUSTMENT ITEMS ADJ. VARIABLE RANGE (Text) RANGE VALUE DEVICE B-9300 Blue Drive (9300K) 0~127 TA1276AN G-7500 Green Drive (7500K) 0~127 TA1276AN B-7500 Blue Drive (7500K) 0~127...
  • Page 54 DP-85 I2C SERVICE MODE Page 3 of 4 Total of 117 Adj. with 13 Field Adjustments ADJ. INIT. CONTROLLED ADJUSTMENT ITEMS ADJ. VARIABLE RANGE (Text) RANGE VALUE DEVICE RPH170 (G-Y) Phase (SMPTE-170M) TA1276AN 0:90deg 1:92deg 2:94deg 3:112deg RBG170 (R-Y) / (B-Y) Gain (SMPTE-170M) TA1276AN 0:0.56 1:0.68 2:0.79 3:0.86...
  • Page 55 DP-85 I2C SERVICE MODE Page 4 of 4 Total of 117 Adj. with 13 Field Adjustments ADJ. INIT. CONTROLLED ADJUSTMENT ITEMS ADJ. VARIABLE RANGE (Text) RANGE VALUE DEVICE Black Detection Level (B.D.L.) TA1276AN 0:3IRE to 1:0IRE DADV TA1276AN Dynamic ABL Detection Voltage 0:MIN 7:MAX TA1276AN Dynamic ABL Sensitivity...
  • Page 56 DP-85 SERIES CHASSIS MAGNETS, SCREEN CONTROLS and FOCUS BLOCK ASSEMBLY DP-85 MAGNETS Adjustment Points FRONT RED CRT GREEN CRT BLUE CRT (5) Beam Alignment magnets (1) Centering magnet RED (6) Focus Block Assembly RED, GREEN & (2) Centering magnet GREEN BLUE (3) Centering magnet BLUE Also: Drive Adjustment controls for...
  • Page 57 PRE HE A T R U N C O N DITION DP-85 Series Chassis. PRESET E A C H A D J U S T M E N T 2) S C R E E N V R O N F O C U S 3) Focus VR on focus pack V R T O C O N DITION A S P A C K .
  • Page 58 C U T O F F and F O C U S A D J U S T M E N T DP-85 C H A S SIS A D J U S T M E N T P R E P A R A TION: A ) P r e H e a t R u n s h o u l d b e f i n i s h e d .
  • Page 59 DP-85 C H A S SIS D C U C R O S S-H A T C H P H A S E S E T TIN G A D J U S T M E N T PRO C E D U RE Adjustment Preparation: Exiting Adjustment Mode: S M O O T H M o de Adjustment...
  • Page 60 DP-8 5 C H A S SIS H O RIZ O N T A L P O SITIO N “ C O A R S E ” A D J U S T M E N T PRO C E D U R E A djustment Preparation: o f t h e D i g i t a l C r o s s- 5 ) E n t e r t h e I...
  • Page 61 DP-8 5 C H A S SIS R A S T E R TILT (Deflection Yoke) A D J U S T M E N T PRO C E D U R E A djustment Preparation: Adjustment Procedure : BLUE: 1 ) T h e s e t c a n f a c e a n y GREEN: 1 ) R e m o v e c o v e r f r o m...
  • Page 62 B E A M A LIGN M E N T f or DP-8 5 C H A S SIS (W A R NING: Remove all rings, watches and jewelry to avoid shock.) Preparation for adjustment: 4 ) T u r n G r e e n ( G ) s t a t i c f o c u s 2 ) T h e Y o k e T i l t , c e n t e r i n g , 1 ) A d j u s t a t l e a s t 3 0 m i n u t e s V R c l o c k w i s e a l l t h e w a y .
  • Page 63 DP-8 5 C H A S SIS CENTERING M A G N E T v s . B E A M F O R M M A G N E T N O T E : The Centering Magnet and Beam Form and Beam Alignment magnets are shown on the right to avoid confusion when adjusting.
  • Page 64 RED, GREEN and BLUE C E N T E RING FOR THE DP-8 5 C H A S SIS Centering adjustment using the control. The actual measurements for Red “See Digital Centering Magnets. and Blue offset are as follows: Convergence adjustment Red is aligned 1 0 mm left of center procedure”.
  • Page 65 H O RIZ O N T A L B L A N K ING PH A S E A D J U S T M E N T D P-8 5 C H A S SIS Adjustment procedure: 4 ) S e l e c t i t e m [3] (HBLKPH) This adjustment is only neces- G o t o I C S e r v i c e A d j .
  • Page 66 H O RIZ O N T A L & V E R TIC A L SIZE A D J U S T M E N T PRO C E D U R E D P-8 5 C H A S SIS V E R TIC A L SIZE: •...
  • Page 67 T R A P E Z OID DIS T O R T ION A D J U S T M E N T D P-8 5 C H A S SIS A djustment Preparation. Adjustment procedure FULL Adjustment procedure 1 ) V I D E O c o n t r o l : Fa c t o r y M O D E: S M O O T H/WIDE M O D E: P r e s e t .
  • Page 68 SIDE PIN DISTORTION A D J U S T M E N T D P-8 5 C H A S SIS A djustment Preparation. Adjustment procedure FULL Adjustment procedure 1 ) V I D E O c o n t r o l : Fa c t o r y M O D E: S M O O T H M O D E: P r e s e t .
  • Page 69 B E A M F O R M A D J U S T M E N T for the DP-8 5 C H A S SIS BE A M F O R M Preparation for adjustment Adjustments procedure: 1 ) G r e e n C R T b e a m s h a p e a d- 4 ) M a k e t h e d o t a t t h e s c r e e n 1) IMPORTANT: Screen for- just m e n t .
  • Page 70 O P TIC A L S Y S T E M A D J U S T M E N T S D P-8 5 C H A S SIS Focus adjustment L o o s e n t h e f i x - •...
  • Page 71 DP-8 5 C H A S SIS BLUE DEFO C U S A D J U S T M E N T PRO C E D U RE A djustment Preparation: 1 ) V i d e o C o n t r o l : B r i g h t n e s s 9 0 % , C o n t r a s t M a x .
  • Page 72 A D J U S TING THE RED, GREEN A N D BLUE WHITE B A L A N C E A N D T R A C KING for DP-85 Chassis Note: When Vertical is collapsed, make adjustments quickly because the image can burn on the CRTs phosphors. W hite balance adjustment [1] o f I C A D J .
  • Page 73 A D J U S TING THE RED, GREEN A N D BLUE WHITE B A L A N C E A N D T R A C KING for DP-85 Chassis Note: When Vertical is collapsed, make adjustments quickly because the image can burn on the CRTs phosphors. i n t o a n y V i d e o i n p u t a n d a d j u s t m e n t V R s (red, r e p e a t s t e p s 6 t h r o u g h 9 .
  • Page 74 DP-85 SERIES CH A S SIS H O RIZ O N T A L P O SITIO N “ F I N E ” A D J U S T M E N T PRO C E D U R E A djustment Preparation: t o e x i t f r o m t h e S e r v i c e s h i f t d u e t o t h e D M - 1 m o d-...
  • Page 75 DIGIT A L C O N V E R G E N C E O V E R L A Y F U L L A N D S M O O T H M O D E DP-85 Red and Blue Centering Offset is necessary to free up memory in the Digital Convergence Unit. It is important to offset the Red and Blue centering during Magnet Centering.
  • Page 76 DP-85 DIGITAL CONVERGENCE ADJUSTMENT POINT STOPPING POSITIONS 3 X 3 MODE (9 stopping positions) (NOTE: This mode can only be activated when the Digital RAM is cleared, see Page 8-12) To clear the RAM: PRESS AND HOLD THE SERVICE ONLY SWITCH (Service only switch is located on the deflection PWB), THEN PRESS AND HOLD THE POWER BUTTON.
  • Page 77 DP-85 DIGITAL CONVERGENCE ADJUSTMENT POINT STOPPING POSITIONS 13 X 9 MODE (117 stopping positions) Press the “INPUT” button on the CLU-914MP remote 5 times to activate the 117 stopping positions. The raster will blink and the cursor will flash indicating 13 X 9 MODE. NOTE: This is the normal mode when entering the digital convergence adjustment mode.
  • Page 78 Digital Cursor Blinks BLUE 7x5 adjustment mode 13 x 9 adjustment mode (Press 5 times) HITACHI (Press 5 times) CLU-614MP F R O N T C O N T R O L P A N E L P A G E 0 8 - 28...
  • Page 79 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Digital Convergence Alignment Center the Overlay Jig geometrically on the screen Receive any NTSC signal (Crosshair if possible) Set SCREEN FORMAT TO FULL mode Clear RAM data (DCU RAM) Service only Internal switch Digital Press and hold the SERVICE SWITCH is on the "Cross Hatch...
  • Page 80 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Static Centering Alignments Moves Entire Raster Internal Cross Hatch Signal selected Press the Remote "MOVE" button ( extra lines will appear at top and bottom ) Extra Lines appear indicating Raster Mode Remote Press the Remote Cursor Adjust Color Up buttons to match the selected Crosshatch...
  • Page 81 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence 3x3 Point Adjustment Mode (Green Coarse Alignment ) Press the Remote "USER" button to enter the Green Adjustment Mode (The 3X3 Mode can only be entered when Press the Remote USER the DCU RAM button 5 times to enter the data is cleared) 3X3 Adjustment Mode...
  • Page 82 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Before Calculation Press the Remote "INFO" button to Calculate points in between the adjustment points averages the error between the Calculation points to prevent "S" Distortion Convergence 3x3 Mode (9 Point) Adjustment (Red / Blue Coarse Alignment) After interpolation, press the Remote button "0"...
  • Page 83 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence 7x5 Point Adjustment (Green Only Alignment) Remote INPUT C.S. Press the Remote " 0 " button five times to enter the 7X5 mode Selects the 7X5 mode Remote Press the Remote " USER" button USER to project the green only Selects GREEN...
  • Page 84 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Remote Convergence 7x5 Point Adjustment (Red/Blue Alignment) INPUT C.S. Press the Remote " 0 " button to project Crosshatch the Red/Green Press the Remote Cursor and 2,4,5,6 b u t t o n s t o p e r f o r m c o n v e r g e n c e p o i n t a d j u s t m e n t a t e v e r y o t h e r Perform intersection of the crosshatch...
  • Page 85 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence 13X9 Point Adjustment (Green Only Alignment) Press the Remote " INPUT " button five times to enter the 13X9 mode Remote Remote Press the Remote "USER" USER button to project C.S. INPUT the green only Selects GREEN Selects the 13X9 mode...
  • Page 86 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Remote Convergence 13X9 (117 Point) Adjustment (Red/Blue Alignment) INPUT C.S. Press the Remote " 0 " button to enter RED Adjustment Mode and to project Crosshatch the Red/Green Press the Remote Cursor and 2 , 4 , 5 , 6 b u t t o n s t o p e r f o r m convergence point adjustment at Perform...
  • Page 87 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Store New Convergence Data in Rom Press the Remote "SWAP" button twice to begin the ROM Write mode = STORE ROM WRITE? This screen is projected at the first press of SWAP button Screen goes blank for several seconds at the second push of the SWAP button !!!! WARNING !!!!
  • Page 88 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Magic Focus Initialization Press the Remote "SWAP" button once ROM WRITE? Again the screen projects "ROM WRITE" at the first press of "SWAP" button Press the Remote "PIP CH" button to begin the Initialization Mode This screen appears with a series of green dots indicating sucessful...
  • Page 89 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Additional MINOR Adjustments Available to the Service Technician CENTER Static or Center STATIC alignment is off. Screen goes black for several seconds. Press and Hold Magic Press and hold the Magic Focus button for 5 Focus button for 10 seconds seconds until "CENTER"...
  • Page 90 DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence Touchup Overlays NOT required! Convergence Point Adjustment IMPORTANT: Begin in FULL mode. Enter the Service Mode by pressing the " Service Only Switch" on Deflection PWB. Press the " MENU" button to Remove colors not being adjusted. Press following for Selected Color to Adjust;...
  • Page 91 MAGIC FOCUS ERROR CODES FOR THE DP-85 CHASSIS CONVERGENCE ERRORS: If an error message or code appears while performing MAGIC FOCUS or initialize (SWAP and PinP CH in Digital Convergence Adjustment Mode, follow this confirmation and repair method. ♦ Turn on Power and receive any signal. ♦...
  • Page 92 M E M O R Y INITIALIZ A TION PROCEDURE for the DP-85 CH A S SIS HDTV POWER ON justment must be checked and Initialization as in the past. Service PROCEDURES Adjustment Data will be erased. aligned according to adjustment (Requires Remote Control): section.
  • Page 93 T R O U B L E S H O O TING (NO R A S T E R N O P O W E R DP-8 X S eries Chassis. DP-85 CHASSIS TROUBLESHOOTING 1.) No Raster and No Power (How to check Diagnosis LED's) (Power PWB) (Control PWB) Check...
  • Page 94 T R O U B L E S H O O TING (NO R A S T E R N O P O W E R DP-8 X S eries Chassis. DP-85 CHASSIS TROUBLESHOOTING 1.) No Raster and No Power (Signal PWB) (Power PWB) No Relay Click Heard...
  • Page 95 T R O U B L E S H O O TING (NO R A S T E R N O P O W E R DP-8 X S eries Chassis. DP-85 CHASSIS TROUBLESHOOTING 1.) No Raster and No Power (Power PWB) All HOT Ground All HOT Ground...
  • Page 96 T R O U B L E S H O O TING (NO R A S T E R N O P O W E R DP-8 X S eries Chassis. DP-85 CHASSIS TROUBLESHOOTING 1.) No Raster and No Power (Deflection PWB) All LED's Going OF at the same time.
  • Page 97 T R O U B L E S H O O TING (NO R A S T E R N O P O W E R DP-8 X S eries Chassis. DP-85 CHASSIS TROUBLESHOOTING 1.) No Raster and No Power (GREEN LED's going OFF) (Power) One LED Going OFF a little Find which LED is going Dark and OFF...
  • Page 98 DP-85 HDTV DM-1 TO CHASSIS INTERFACE Power Fail >20V DM-1 PTV MAIN CHASSIS Module +33VS +12VS Power Supplies PMQ2 from Molex type -5VS PTV to DM-1 +3.3VS Power Supplies PMQ3 +5VS from Molex type PTV to DM-1 VIDEO (NTSC) NTSC (1H) L-Audio (NTSC) PMT1 AUDIO &...
  • Page 99 DM-1 TROUBLESHOOTING SYMPTOMS, and ACTIONS (See drawing Page 09-06) SYMPTOM ACTION COMMENTS PWR_FAIL must be Power L.E.D. blinks Suspected failure of DM-1. >20vdc. Check all power twice when AC Pwr. (Power L.E.D. does not blink supplies (+5, +3.3, -5, is applied if DM-1 twice when AC Power is ap- +12 &...
  • Page 100 WAVEFORMS FOR DM-1 TROUBLESHOOTING (See Page 09-06 for DC Voltages) After checking all the DC voltages between the DM-1 and the Main chassis, investigate the Waveforms. Check on Connector PMS2 Pin 5 (IP. TX) Check on Connector PMS2 Pin 3 (IP. Request) Waveform only available during Power On and Off Check on Connector PMS2 Pin 4 (IP.
  • Page 101 WAVEFORMS FOR DM-1 VIDEO TROUBLESHOOTING (Continued) After checking all the DC voltages between the DM-1 and the Main chassis, investigate the Waveforms. Check on Connector PMZ Pin 1 (Y 2.14) Check on Connector PMZ Pin 3 (2H Pr 2.14) Check on Connector PMZ Pin 2 (Y. Ref) Check on Connector PMZ Pin 3 (2H Pr 2.14) WARNING! If measuring from any PMZ Connector as Reference, other that Ground, make sure the Scope isn’t grounded.
  • Page 102 DEFLECTION TROUBLESHOOTING (Deflection and High Voltage Drive Signals) The deflection circuit in the DP-85 chassis operates Horizontal Blanking signal Q755 differently from previous chassis. This chassis utilizes from it’s Emitter. Emitter Also a duel horizontal section. One H.Blk for High voltage and one for de- flection.
  • Page 103 DEFLECTION TROUBLESHOOTING (Deflection and High Voltage Drive Signals) From pin 4 it reenters supplied to Pin 1 of IH01 when compared to PDD1 IH01 IH01 at Pin 10 and is Connector Pin 7 H. DRIVE signal. Pin 12 output again at pin 12. Figure 17 illustrates the comparison of the waveform input to Pin 1 of IH01 when compared to PDD1 Con- nector Pin 7 H.
  • Page 104 DEFLECTION TROUBLESHOOTING (DRIVE SIGNAL COMPARISON) The output from IH01 Pin 12 is then routed to IH02 HORIZONTAL POWER SUPPLY GENERA- Pin 10. Internally a signal is produced that actually TION CIRCUIT EXPLANATION: drives the High Voltage Horizontal Output transistor. It is important to remember that the Power Supply also The output waveform is produced at Pin 7 plays a roll in the deflection circuit.
  • Page 105 OTHER KEY WAVEFORMS FOR TROUBLESHOOTING The Waveforms on the following pages are to assist the Service Technician when Trouble shooting for different problems. These pictures are taken from a known working set, using standard NTSC color bars unless noted. Other Key Waveforms •...
  • Page 106 OTHER KEY WAVEFORMS FOR TROUBLESHOOTING H. Sync (PSD2 Pin 4) V. Sync (PSD2 Pin 8) H. Blk. (PSD2 Pin 6) V. Blk (PSD2 Pin 9) SCL1 (PSU1 Pin 6) Vp-p = 4.719 V Vp-p = 4.531 V Vp-p = 10.88 V Vp-p = 5.250 V Freq = 33.78 kHz Freq = 59.97 Hz...
  • Page 107 OTHER KEY WAVEFORMS FOR TROUBLESHOOTING 3D C (PCX Pin 7) Video Out PinpV (PinP U002 Pin 13) 3D Y (PCX Pin 9) VSAWOUT (PDD2 Pin 3) (PinP Tuner U001 Pin 23) Vp-p = 1.406 V Vp-p = 2.281 V Vp-p = 1.50 mV Vp-p = 1.484 V Freq = 15.75 kHz Freq = 59.70 Hz...
  • Page 108 OTHER KEY WAVEFORMS FOR TROUBLESHOOTING Y2 In (IX01 Pin 53) Heater Pulse (TP91 Pin 14) 130V Pulse (TP91 Pin 13) VSM Out (IX01 Pin 48) SMFET (I901 Pin 1) Vp-p = 600 mV Vp-p = 37.81 V Vp-p = 800 mV Vp-p = 631.2 V Vp-p = 306.3 V Freq = 33.76 kHz...
  • Page 109 OTHER KEY WAVEFORMS FOR TROUBLESHOOTING SMFET Drain SMFET Source Y Out 1 (I301 Pin 44) CV Sync (Q036 Emitter) (IP01 Pin 1) (IP01 Pin 2) Vp-p = 1.875 V Vp-p = 2.578 V Vp-p = 3.016 V Vp-p = 275.0 V Freq = 15.75 kHz Freq = 15.75 kHz Freq = 59.08 kHz...
  • Page 110 61HDX98B DIRECT TV “SMART CARD” TROUBLESHOOTING Below is a summary of problems that Servicers and/or customers may encounter in the field. 1) If no Smart Card is in the unit and "SAT" 5) If channel 500 (5.1 Dolby Digital is selected from remote or front panel, the promo) was selected on a card that has unit will display: "Please insert your ac-...
  • Page 111 61HDX98B Chassis DP-85 Description Part Number Description Part Number • MAIN CHASSIS UE04932 BRIDGE RECTIFIER (On Power PWB) D903 (2338313) • RAW 150V PROTECTOR EP91 (AZ00109M) SIGNAL PWB JT08042 • • SWITCHING REGULATOR (Driver IC) IP01 (CZ00451) SLAVE MICROPROCESSOR I001 (CO02341) •...
  • Page 112 61HDX98B Chassis DP-85 Description Part Number Description Part Number • DIGITAL Convergence Unit (UKDG) CS00221 REAR AUDIO OUTPUT IC I403 (2004751) SUB DEFLECTION PWB JT08061 SUB POWER PWB (Process Power) JT08051 • • HORIZONTAL Vcc REGULATOR I701 (CP05571) BRIDGE RECTIFIER D901 (2338313) •...

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