Table of Contents
SERVICE MANUAL Colour Television
Specifications
Power Source . . . . . . . . . AC110-240V, 50Hz/60Hz.
Colour System . . . . . . . . PAL/SECAM/NTSC4.43/NTSC/PAL-60Hz
Television System . . . . . . B/G, D/K, K', I, M/M
Channel Coverage . . . . . VHF: E2-E12, R1-R12, K1-K9, A2-A13, J1-J12
UHF: 21-69, A14-A69, J13-J62
CATV: S1-S41, X, Y, Z, Z+1, Z+2
Video IF . . . . . . . . . . . . . . 38.0MHz
Aerial Input Impedance . . 75Ω
Ext. Terminals
Video inputs: Phono jack ✕ 2 (1Vp - p, 75Ω)
Audio inputs: Phono jack ✕ 2 (436mVrms, more than 40KΩ)
Video monitor outputs: Phono jack ✕ 1 (1Vp - p, 75Ω)
Audio monitor outputs: Phono jack ✕ 1 (436mVrms, less than 600Ω)
Sound Output (RMS) . . . . 6W
Speaker . . . . . . . . . . . . . 6 cm ✕ 12 cm ✕ 2 pcs.
Dimensions . . . . . 619 (W) ✕ 461 (H) ✕ 485 (D) mm
Weight
. . . . . . . . approx. 22.0 Kg
Specifications subject to change without notice.
C2ES/C2ESA
-
+
CH
FILE NO.
Model No. CM21SP81
CM21SP81A
Service Ref. No. CM21SP81-00
TIMER
TV/AV
1
2
3
4
5
6
7
8
0
-/--
9
BASS
A B
SURROUND
PL
P
P
CH SCAN
PM
SWAP
MENU
PIC MODE
JXMYA
Product Code: 111359614
111359634
Original Version
Chassis Series: AC5-CG
Give complete "SERVICE REF. NO." for
parts order or servicing. It is shown on the
rating plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television trans-
mission system and power source differ
from the design specifications. Refer to the
specification table.
REFERENCE NO.
(Middle East)
CM21SP81A-00
(CM21SP81)
(CM21SP81A)
SM
5110579
Table of Contents
Related Manuals for Sanyo CM21SP81
Summary of Contents for Sanyo CM21SP81
- Page 1 FILE NO. SERVICE MANUAL Colour Television Model No. CM21SP81 CM21SP81A (Middle East) Service Ref. No. CM21SP81-00 CM21SP81A-00 TIMER TV/AV -/-- BASS SURROUND CH SCAN SWAP MENU PIC MODE JXMYA Specifications Product Code: 111359614 (CM21SP81) Power Source ..AC110-240V, 50Hz/60Hz.
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Page 2: Table Of Contents
Contents Safety Notice ............... . 2 Chassis Block Diagram . -
Page 3: Chassis Block Diagram
Chassis Block Diagrams (MAIN SIGNAL PROCESSING CIRCUIT) - Page 4 Chassis Block Diagrams SYSTEM CONTROL...
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Page 5: Ic Block Diagrams
IC Block Diagrams IC201 < IF/Video/Chroma/Def. > LA76818A Audio Output SIF Input FM Output/Selected SIF APC Filter Audio Output SIF Output PIF AGC Ext. Audio Input RF AGC Output PIF Input1 APC Filter VCO Coil 1 PIF Input 2 VCO Coil 2 IF Ground VCO Filter IF Vcc... -
Page 6
IC Block Diagrams IC201
LA76818A... -
Page 7: Service Information
IC Block Diagrams IC501 < Vertical Output > LA78040/N Thermal Protection Pump Service Information I Protection Circuit This TV set has a built-in power supply protection circuit. It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality occurs during TV reception, the TV set goes to the stand-by mode. -
Page 8: Service Adjustments With Replacing Memory Ic(Ic802)
Service Adjustments with Replacing Memory IC(IC802) Note: The CPU (IC801) and memory IC (IC802) store the service adjustments data and controls data for each circuit.When the Memory IC(IC802) is replaced, some of the service adjustments should be readjusted to obtain the best performance. The necessary service adjustments are carried out by using the RC handset. Please set up the TV set with following steps [1] to [2]. - Page 9 Service Adjustments with Replacing Memory IC(IC802) Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM DATA INITIAL DATA INITIAL ITEM RANGE SETUP DESCRIPTION ITEM RANGE...
- Page 10 Service Adjustments with Replacing Memory IC(IC802) DATA INITIAL DATA INITIAL ITEM RANGE SETUP DESCRIPTION ITEM RANGE SETUP DESCRIPTION DATA DATA TUNER Tuner Option 0~255 ROM Correction AV123 AV1/AV2/AV3 Option, 0=AV only, 0~255 ROM Correction 1=AV1, AV2, 2~3=AV1, AV2,AV3 0~255 ROM Correction 88 OPT POS Programme number Option, 0~255...
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Page 11: Service Adjustments With Replacing Memory Ic (Ic802)
Service Adjustments with Replacing Memory IC(IC802) [Entering to Service Mode] Press and hold the MENU button on the Remote Control and press the VOLUME (+) button on the TV set. Following setting items appears on the screen. MENU Display for [RF AGC] RF AGC adjustment MENU Read Status SI. -
Page 12: Service Mode Adjustments
Service Mode Adjustments Following adjustments should be carried out when the memory IC is replaced. How to enter the service mode and adjust values, please refer to “ Entering to Service mode” on page 11. Item 05 [V-SCO] V-S CORRECTION Item 01 [RF AGC] AGC NOTE: Do not attempt this adjustment with weak signal. - Page 13 Service Mode Adjustments Items 14-17, 19-21 GREY SCALE (1) Receive the monochrome circular pattern. (2) Set the brightness and colour to normal, contrast to maximum. (3) Enter to the service mode. (4) Set each value of Item-14 RBIAS, 15 GBIAS, 16 BBIAS, 17 RDRIV and 19 BDRIV mode to 64. (5) Select Item-20 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just visible one coloured line.
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Page 14: Service Adjustments
Service Adjustments Following adjustments are not required to readjust when replacing the memory IC. VERTICAL CENTRE B-VOLTAGE SUPPLY CHECKING (1) Receive the monochrome circular pattern. (1) Connect DC meter to TP-B and the ground. (2) Set the brightness and contrast to maximum. (2) Tune the receiver to an active channel and synchro- (3) Adjust the vertical centre of the picture with SW501. -
Page 15: Special Function
Special Function The following special functions can be set up on this TV How to set the special function: set. Note: When making the VOLUME LOCK setting, set the (1) Volume Lock setting desired maximum sound volume by pressing the VOLUME + or - button before entering Special Function setting mode. -
Page 16: Purity And Convergence Adjustment
Purity and Convergence Adjustment CAUTION: The Convergence and Purity adjustments have been made at the factory. Readjustment should be made only after picture tube or deflection yoke replacement, following the steps below: PURITY ADJUSTMENT 8. Tighten the mounting screw of the Deflection Yoke. Adjust 1. -
Page 17: Cabinet Parts List
Cabinet Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions. Model CM21SP81 & CM21SP81A AUDIO IN VIDEO IN ANT. 75Ω AUDIO OUT VIDEO OUT TIMER TV/AV -/-- BASS SURROUND CH SCAN SWAP MENU PIC MODE JXMYA Key No. -
Page 18: Chassis Electrical Parts List
C2ES Chassis Electrical Parts List Model CM21SP81 & CM21SP81A) Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety. - Page 19 C2ES Ref. No. Part No. Description Ref. No. Part No. Description 405 173 9803 TR 2SC3928A1R 405 173 9902 TR 2SC3928A1S 405 173 9902 TR 2SC3928A1S Q635 405 011 8401 TR 2SC1740S-Q Q1012 405 014 4509 TR 2SC2412K T146 R 405 011 8500 TR 2SC1740S-R 405 014 4608...
- Page 20 C2ES Ref. No. Part No. Description Ref. No. Part No. Description Q871 405 014 4509 TR 2SC2412K T146 R 403 049 4204 ELECT 10U M 405 014 4608 TR 2SC2412K T146 S C1017 404 084 8806 ELECT 1U M 405 015 8704 TR 2SC2812-L6-TB 403 049 0008 ELECT...
- Page 21 C2ES Ref. No. Part No. Description Ref. No. Part No. Description 403 049 9803 ELECT 2.2U M C614 403 056 9704 POLYESTER 0.01U J C273 403 342 3300 CERAMIC 0.1U K 403 178 9309 POLYESTER 0.01U J C278 403 342 3300 CERAMIC 0.1U K C615...
- Page 22 C2ES Ref. No. Part No. Description Ref. No. Part No. Description R024 401 105 6506 MT-GLAZE 680 JA 1/16W R227 401 105 4205 MT-GLAZE 33K JA 1/16W R025 401 105 6001 MT-GLAZE 5.6K JA 1/16W R228 401 024 7707 CARBON 100K JA 1/6W R031...
- Page 23 C2ES Ref. No. Part No. Description Ref. No. Part No. Description R615 401 016 1508 CARBON 22 JA 1/4W R863 401 105 5400 MT-GLAZE 47K JA 1/16W R616 401 024 7400 CARBON 10K JA 1/6W R866 401 024 6700 CARBON 100 JA 1/6W R617...
- Page 24 C2ES Ref. No. Part No. Description Ref. No. Part No. Description 407 012 4406 DIODE 1SS133 407 013 7109 DIODE 1S2473 407 013 4306 DIODE 1S2076A D619 407 005 4505 DIODE DS442X 407 013 7109 DIODE 1S2473 408 008 2406 DIODE 1N4148 D122 407 166 1108...
- Page 25 C2ES Ref. No. Part No. Description Ref. No. Part No. Description SW501 610 011 2728 SWITCH,LEVER 1P-3T R743 401 027 5908 CARBON 68K JA 1/6W 652 000 0049 SWITCH,LEVER R751 401 105 0603 MT-GLAZE 10K JA 1/16W SW601 645 059 0061 SWITCH, POWER 1P-1TX1 R752 401 105 0603...
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- Page 28 A14800/Nov./’03/30 BB SANYO Electric Co., Ltd. Printed in Japan...
- Page 29 N: Metalized carbon Kind (M.carbon) 8. This circuit diagram covers a basic or representative chassis only. There S: Oxied metalized CM21SP81-00 W: Wire wounding may be some components or partial circuit differences between the Rated wattage (1/2W) POSISTER...
- Page 30 Waveforms & Voltages CRT BOARD (Component Location) (On the Main Board) IC001 (AUDIO AMP.) C721 R724 Pin-1 12.7V 5.9V 5.9V 6.8V 1.5V 1.5V 0.4V J705 5.9V 5.9V Q703 IC201 (IF/VIDEO/CHROMA) Pin-1 2.3V 2.2V 2.5V 2.2V 2.9V 2.9V 5.0V 2.5V 1.6V 4.1V 3.8V 4.3V...