Sanyo DS19330 Service Manual
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Sanyo DS19330 Service Manual

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SERVICE MANUAL
(SUPPLEMENT)
THIS CHASSIS IS SIMILAR TO MODEL DS19310, CHASSIS NUMBER
19310-04. SERVICE INFORMATION GIVEN IN THIS MANUAL IS ONLY THE
DIFFERENCE INFORMATION FROM MODEL DS19310, CHASSIS
NUMBER 19310-04. FOR ADDITIONAL SERVICE INFORMATION, REFER
TO THE SERVICE MANUAL FOR CHASSIS NUMBER 19310-04 USED IN
MODEL DS19310 (SM5110224-04).
G8MDA, PRODUCT CODE 111363880
Remote Control Color
Television
AS
FILE NO.
DS19330
(U.S.A.)
(CANADA)
ORIGANAL VERSION
Chassis No. 19330-00
NOTE: Match the Chassis No. on
the unit's back cover with
the Chassis No. in the
Service Manual.
If the Original Version
Service Manual Chassis
No. does not match the
unit's, additional Service
Literature is required. You
must refer to "Notices" to
the Original Service Manual
prior to servicing the unit.
SS
REFERENCE No.
780042
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  • Page 1 FILE NO. SERVICE MANUAL Remote Control Color DS19330 (U.S.A.) Television (SUPPLEMENT) (CANADA) ORIGANAL VERSION Chassis No. 19330-00 NOTE: Match the Chassis No. on the unit’s back cover with the Chassis No. in the Service Manual. If the Original Version Service Manual Chassis No.
  • Page 2 DIFFERENCES MODEL DS19330 (Chassis No. 19330-00)  SAME AS MODEL DS19310 (Chassis No. 19310-04) EXCEPT: 1. IN THE CABINET / ACCESSORY PARTS LIST MODEL DS19330 (Chassis No. 19330-00) MODEL DS19310 (Chassis No. 19310-04) KEY NO. Part No. Description Part No.

  • Page 3: Table Of Contents

    Notice PRODUCTION CHANGE CORRECTION FILE NO. SERVICE FLASH ADD INFORMATION REVISION 04 Please add this notice to the Service Manual listed below. COLOR TELEVISION MARCH / 15 / 2002 Category Date: DS19310 19310-04 Model: Effective from : Chassis No. SM5110224 U.S.A.

  • Page 4: Safety Instructions

    SAFETY INSTRUCTIONS SAFETY PRECAUTIONS WARNING: The chassis of this receiver has a floating READING SHOULD NOT EXCEED 750 mV. AC VOLTMETER ground with the potential of one half the AC line voltage in (5000 ohms per volt or more sensitivity) respect to earth ground.

  • Page 5: Service Adjustments

    SERVICE ADJUSTMENTS GENERAL This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments. IC802 (EEPROM) REPLACEMENT When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation. However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
  • Page 6 Table 1. ON-SCREEN SERVICE MENU When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described in the following pages. Initial Setup Data marked with an * should be changed from Initial Reference Data.
  • Page 7 Table 1. ON-SCREEN SERVICE MENU (Continued) When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described in the following pages. Initial Setup Data marked with an * should be changed from Initial Reference Data.
  • Page 8 SERVICE ADJUSTMENTS (Continued) ANTENNA CONNECTIONS GRAYSCALE ADJUSTMENT This receiver is designed for UHF/VHF reception. A 75 ohm 1. Set the picture controls to the Auto levels (use MENU terminal is provided for UHF and VHF receptions. When key and key or RESET key). connecting a CATV antenna system, connect the 75 ohm 2.
  • Page 9 VCO ADJUSTMENT HIGH VOLTAGE HOLD-DOWN TEST Every time the receiver is serviced, the HIGH VOLTAGE Note: VCO must be adjusted after IC101 (Signal HOLD-DOWN circuit must be tested for proper operation by Processor), IC802 (EEPROM) or T151 (VCO Coil) is following these steps: replaced.
  • Page 10 SERVICE ADJUSTMENTS (Continued) VIDEO LEVEL SOUND ADJUSTMENT 1. Connect color-bar generator to antenna terminals. 1. Connect a color-bar generator to the antenna terminals 2. Switch the generator to a white field (100 IRE). with audio signal of 1KHz at 100% modulation. 3.

  • Page 11: Service Hints

    SERVICE HINTS POWER FAILURE DETECTOR This unit is equipped with a Power Failure Detector function included in the CPU which checks for an abnormal condition in the chassis power supplies, including the power supply derived from the Horizontal Output Transformer. If, while the power is on, a failure is caused by any of the following that results in a low voltage supply, the CPU will turn the unit off in 1.5 seconds to prevent unnecessary damage: •...

  • Page 12: Purity And Convergence

    PURITY AND CONVERGENCE ADJUSTMENTS CAUTION: The Purity and Convergence adjustments have been made at the factory. Readjustments should be made only after the picture tube or deflection yoke is replaced. Follow the steps below for necessary readjustments. PURITY ADJUSTMENTS 1. When replacing picture tube or deflection yoke, mount deflection yoke and purity and convergence magnets DEFLECTION YOKE assembly properly.
  • Page 13 CONVERGENCE ADJUSTMENT CENTER CONVERGENCE ADJUSTMENT OUTER AREA CONVERGENCE ADJUSTMENT 1. Connect a crosshatch generator to antenna terminals. The outer area convergence is performed by positioning of 2. Set Contrast to low level to eliminate blooming. Reduce the yoke as follows: Brightness level to obtain black background if necessary.

  • Page 14: Mechanical Disassemblies

    MECHANICAL DISASSEMBLIES CHASSIS REMOVAL CABINET BACK REMOVAL 1. Remove cabinet back. 1. Refer to Figure 1, remove 4 screws. 2. Discharge the picture tube anode (2nd anode lead) to the 2. Pull off cabinet back and remove. dag coating (picture tube grounding lead). 3.

  • Page 15: Chassis Electrical Parts List

    CHASSIS ELECTRICAL PARTS LIST CAUTION: To Protect against electrical shock and for continued product safety, refer to SAFETY PRECAUTIONS, X-RADIATION PRECAUTIONS, HIGH VOLTAGE HOLD-DOWN TEST, and PRODUCT SAFETY NOTICE on Page 2. PRODUCT SAFETY NOTICE PRODUCT SAFETY SHOULD BE CONSIDERED WHEN A REPLACEMENT IS MADE IN ANY AREA OF A RECEIVER. COMPONENTS INDICATED BY A STAR ( ) IN THIS PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATE COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE.
  • Page 16 Schematic Schematic Part No. Part No. Description Description Location Location C624 403 266 4902 CERAMIC 1200P K C285 403 224 6108 CERAMIC 0.01U K 403 262 2308 CERAMIC 1200P K C401 403 042 2405 ELECT 100U M C625 403 266 4902 CERAMIC 1200P K C402...
  • Page 17 Schematic Schematic Part No. Description Part No. Description Location Location D429 408 008 2406 DIODE 1N4148 D802 408 008 2406 DIODE 1N4148 407 013 4306 DIODE 1S2076A 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 407 013 7109 DIODE 1S2473 D481 407 124 6404...
  • Page 18 Schematic Schematic Description Description Part No. Part No. Location Location TRANSISTORS 405 066 9903 TR 2SC2688(1)-K 405 067 0008 TR 2SC2688(1)-L Q401 405 040 5600 TR 2SC2228-D 405 067 0107 TR 2SC2688(1)-M 405 029 6901 TR 2SC2228-E 405 040 6102 TR 2SC2228M Q711 406 000 3605...
  • Page 19 Schematic Schematic Part No. Description Part No. Description Location Location R133 401 255 6401 MT-GLAZE 3K JA 1/10W R504 401 026 7002 CARBON 3.9K JA 1/6W R142 401 026 4605 CARBON 33K JA 1/6W R505 401 006 8401 CARBON 1.5 JA 1/2W R143 401 150 6209 MT-GLAZE...
  • Page 20 Schematic Schematic Part No. Part No. Description Description Location Location R807 401 150 5905 MT-GLAZE 10K JA 1/10W TRANSFORMERS R808 401 150 5905 MT-GLAZE 10K JA 1/10W T151 645 049 3775 TRANS, OSC 45.75MHZ R809 401 162 3708 MT-GLAZE 4.7K JA 1/10W T401 610 000 7901 DRIVE TRANS...

  • Page 21: Cabinet Parts List

    SCREW 4X14 (4 USED) OR 610 290 1283 RC BATTERT COVER OR 411 078 1101 SCREW 4X14 (4 USED) 610 289 3731 BUTTON UNIT 610 289 5148 CAP RC 610 289 8071 DEC SHEET 610 285 5685 SANYO BADGE-SMALL — 19 —...

  • Page 22: Component And Testpoint Locations

    COMPONENT AND TESTPOINT LOCATIONS MAIN BOARD PARTS SIDE CH-DN VOL-UP VOL-DN CH-UP MENU POWER A1901 SW1901 SW1902 SW1903 SW1904 SW1905 SW1906 EEPROM CONTROL IC802 4A 125V TP814 4A 125V SCREEN ???? K7U1 RL601 C742 K701A X801 LF601 PS601 LF601A IC801 C609 K7Y1 R601H3...
  • Page 23 CAUTION FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE. ATTENTION : POUR MAINTENIR LA PROTECTION CONTRE LES RISQUES D’ INCENDIE UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE 4A, 125V. 4A 125V PIC TUBE SOCKET BOARD COMPONENTS MAIN BOARD COMPONENTS AND TEST POINTS GRID LOCATIONS...
  • Page 24 COMPONENT AND TESTPOINT LOCATIONS (Cont.) MAIN BOARD FOIL SIDE SW1906 SW1905 SW1904 SW1903 SW1902 SW1901 A1901 IC802 R1907 R1904 R1903 R1908 R1905 R1906 R1002 R863 R852 K1001 C862 TP814 B10B0790B R728 FOR CONTINUED PROTECTION Q831 R724 CAUTION R892 C821 AGAINST C742 RISK FIRE,...
  • Page 25 PICTURE TUBE SOCKET BOARD SCREEN ???? K7U1 C742 K701A K7Y1 — 23 —...
  • Page 26 For parts or service contact SANYO Fisher Service Corporation 21605 Plummer Street Chatsworth, CA 91311 (U.S.A.) 300 Applewood Crescent, Concord, Ontario L4K 5C7 (CANADA) March / 2002 / 2000 SMC Printed in U.S.A. — 24 —...

  • Page 27: Block Diagram

    MODEL DS19310 Chassis No. 19310-04 WAVEFORMS SCHEMATIC DIAGRAMS CAUTION FOR CONTINUED PROTECTION AGAINST Note: Voltages were measured with offset color-bar signal and controls set for normal picture. A RISK OF FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE. BLOCK DIAGRAM ATTENTION: POUR MAINTENIR LA PROTECTION NOTES ON SCHEMATIC DIAGRAMS...
  • Page 28 MODEL DS19310 Chassis No. 19310-04 IC501 LA78040: ASSY, PWB, MAIN TDA9302HM TUNER(WITH PLL & BAND SW) A101 F1BAM0300: R517 C106 C502 D501 LBWA 35EM L902 C516 R518 TP16 LBWA L256 C508 C506 KX5P R503 CJ56G 63FJ R252 C253 3.9K 0.018 R511 C511 1/10GJ...

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