Sanyo DS19500 Manual

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Owner's manual (56 pages)

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Summary of Contents for Sanyo DS19500

Page 1: Table Of Contents
If the Service Manual Chassis No. does not match the unit’s, additional Service Literature is required. This chassis is similar to Chassis No. 19500-00, however, all Service Information is given in this Notice for Chassis No. 19500-07 used in Model DS19500. Contents Specifications Safety Instructions .
Page 2: 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 3: 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 4 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 5 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 6 SERVICE ADJUSTMENTS (Continued) DRIVE / BIAS ADJUSTMENTS PROGRAM CODES Note 3. Red/Blue Drive Adjustments in Service Menu NO. The microprossesor used in this model is a multi-purpose 72 DRV: Adjust Red and Blue Drive Levels alternately with type and is used in several different models. To ensure 1, 3, 7, and 9 keys on the remote control.
Page 7 ANTENNA CONNECTIONS VCO ADJUSTMENT This receiver is designed for UHF/VHF reception. A 75 ohm Note: VCO must be adjusted after IC101 (Signal Processor), terminal is provided for UHF and VHF receptions. When IC802 (EEPROM) or T151 (VCO Coil) is replaced. connecting a CATV antenna system, connect the 75 ohm 1.
Page 8 SERVICE ADJUSTMENTS (Continued) GRAYSCALE ADJUSTMENT BRIGHTNESS LEVEL ADJUSTMENT 1. Set the picture controls to the Sports levels or Reset Note: Grayscale, RF-AGC, Video Level, and High Voltage Check (use MENU key and key or RESET key). must be adjusted before attempting Brightness Level 2.
Page 9 SOUND ADJUSTMENT SEPARATION ADJUSTMENT 1. Connect a color-bar generator to the antenna terminals 7. Turn off the receiver and disconnect the AC power cord with audio signal of 1KHz at 100% modulation. (AC 120V line). 2. Set the picture controls to the Sports levels 8.
Page 10: 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 11 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 12: 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 13: Mechanical Disassemblies
MECHANICAL DISASSEMBLIES CHASSIS REMOVAL CABINET BACK REMOVAL 1. Remove cabinet back. 1. Refer to Figure 1, remove 5 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 14: 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 15 Schematic Schematic Part No. Part No. Description Description Location Location C285 403 224 6108 CERAMIC 0.01U K C742 403 077 2807 CERAMIC 1000P Z C401 404 084 3306 ELECT 470U M C801 403 224 6108 CERAMIC 0.01U K C402 403 224 6108 CERAMIC 0.01U K C806...
Page 16 Schematic Schematic Part No. Part No. Description Description Location Location D834 408 047 8308 ZENER DIODE MTZJ6.2C (6.2V) D429 408 008 2406 DIODE 1N4148 407 013 4306 DIODE 1S2076A D836 408 008 2406 DIODE 1N4148 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 407 013 7109...
Page 17 Schematic Schematic Part No. Description Part No. Description Location Location TRANSISTORS Q635 405 011 8401 TR 2SC1740S-Q 405 011 8500 TR 2SC1740S-R Q001 405 011 8401 TR 2SC1740S-Q 405 011 8609 TR 2SC1740S-S 405 011 8500 TR 2SC1740S-R 405 012 2002 TR 2SC1815-GR 405 011 8609 TR 2SC1740S-S...
Page 18 Schematic Schematic Description Description Part No. Part No. Location Location Q831 405 134 5925 TR 2SA1037AK T146 R R137 401 150 6209 MT-GLAZE 1K JA 1/10W 405 147 2205 TR 2SA1037AK T146 S R142 401 256 1702 MT-GLAZE 33K JA 1/10W 405 002 0308 TR 2SA1037K-T-96-R R143...
Page 19 Schematic Schematic Part No. Description Part No. Description Location Location R499 401 026 6609 CARBON 390 JA 1/6W R806 401 162 3708 MT-GLAZE 4.7K JA 1/10W R503 401 026 7002 CARBON 3.9K JA 1/6W R807 401 150 5905 MT-GLAZE 10K JA 1/10W R504 401 026 9907 CARBON...
Page 20 Schematic Schematic Part No. Part No. Description Description Location Location R3436 401 162 4002 MT-GLAZE 560 JA 1/10W MISCELLANEOUS R3437 401 150 5806 MT-GLAZE 100K JA 1/10W A100 610 295 5927 ASSY, PWB, MAIN R3441 401 256 1405 MT-GLAZE 330K JA 1/10W A101 645 053 7936 TUNER, U/V...
Page 21: Cabinet Parts List
RC BATTERY COVER 412 036 1805 SCREW 4X14 (4 USED) 412 018 8402 SCREW 3X10 (1 USED) 610 275 1864 BUTTON UNIT 610 267 0851 CAP RC 610 282 7927 DEC SHEET 610 285 5685 SANYO BADGE-SMALL — 21 —...
Page 22: Component And Testpoint Locations
COMPONENT AND TESTPOINT LOCATIONS MAIN BOARD PARTS SIDE FOR CONTINUED PROTECTION AGAINST A RISK OF CAUTION FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE. ATTENTION : POUR MAINTENIR LA PROTECTION CONTRE LES RISQUES D’ INCENDIE UTILISER UN 4A 125V FUSIBLE DE RECHANGE DE MEME TYPE 4A, 125V.
Page 23 MAIN BOARD FOIL SIDE MENU CH-DN CH-UP VOL-DN POWER VOL-UP A1901 R1905 R1902 R1904 R1906 SW1906 R1907 SW1905 SW1904 SW1903 SW1902 SW1901 R1903 K011 K1011 J1901 RL601 J011 R3406 C3403 C3406 C3402 C3407 R3402 LF601A R3407 LF601B LF601 R627 PS601 KD1P KD2P C3422...
Page 24 PIC TUBE SOCKET BOARD COMPONENTS Part Loc. Q701 Q711 Q721 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) April / 2002 / 2000 SMC Printed in U.S.A.
Page 25: Block Diagram
MODEL DS19500 Chassis No. 19500-07 WAVEFORMS SCHEMATIC DIAGRAMS Note: Voltages were measured with offset color-bar signal and controls set for normal picture. CAUTION FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE.
Page 26 MODEL DS19500 Chassis No. 19500-07 A101 F1BAM0246: F1BAM0280 J1003 R1004 L1001 1/10GJ 27KC J1053 K1003 C3435 R3434 R1003 EM4.7 1/10GJ LBWA 1/10GJ 560C C101 L OUT R857 10KC R856 6.3EM R3432 1/10GJ R3435 LBWA R107 R106 10KC DJ8.2K 1/2DJ18K C3437...
Page 27 This chassis is similar to Chassis No. 19500-00. Only the Difference Service Information is given in this manual. For detailed Service Information, refer to the Original Service Manual and Notices for Chassis No. 19500-00 used in Model DS19500 (SM5110088). 1. IN THE SERVICE ADJUSTMENTS LIST...
Page 28 1. IN THE SERVICE ADJUSTMENTS LIST (Continued) PAGE 4 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 29 Table 1. ON-SCREEN SERVICE MENU (Continued) INITIAL REFERENCE INITIAL SETUP TITLE RANGE OF DATA FUNCTION DATA DATA 0~255 ROM Data 3 0~255 ROM Data 4 0~255 ROM Data 5 0~255 ROM Data 6 0~255 ROM Data 7 169* 0~255 ROM Data 8 0~255 ROM Data 9 231*...
Page 30 2. IN THE PURITY AND CONVERGENCE ADJUSTMENTS LIST PAGE 10 PURITY ADJUSTMENT 1. When replacing picture tube or deflection yoke, mount deflection yoke and purity-convergence magnets assembly properly. See Figure 1. Position the picture tube facing east DEFLECTION YOKE or west. Demagnetize the picture tube and receiver using an external degaussing coil.
Page 31 3. IN THE CHASSIS ELECTRICAL PARTS LIST The reason for change. A : Misprint B : Quality Reliability C : Standardization D : Design E : Add as a possible sub F : Schematic location change G : Purchasing Request Interchange- Page &...
Page 32 3. IN THE CHASSIS ELECTRICAL PARTS LIST (Continued) The reason for change. A : Misprint B : Quality Reliability C : Standardization D : Design E : Add as a possible sub F : Schematic location change G : Purchasing Request Page &...
Page 33 4. IN THE ACCESSORY PARTS LIST PAGE 21 MODEL DS19500 (Chassis No. 19500-04) MODEL DS19500 (Chassis No. 19500-00) KEY NO. Part No. Description Part No. Description 610 282 3448 OWNER’S MANUAL 610 289 3038 OWNER’S MANUAL 645 045 4301 ASSY, RC TRANSMITTER...
Page 34 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) Printed in U.S.A. July / 2001 / 2200 SMC...
Page 35 This chassis is similar to Chassis No. 19500-00. Only the Difference Service Information is given in this manual. For detailed Service Information, refer to the Original Service Manual and Notices for Chassis No. 19500-00 used in Model DS19500 (SM5110088). 1. IN THE SERVICE ADJUSTMENTS LIST...
Page 36 1. IN THE SERVICE ADJUSTMENTS LIST (Continued) PAGE 4 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 37 Table 1. ON-SCREEN SERVICE MENU (Continued) INITIAL REFERENCE INITIAL SETUP TITLE RANGE OF DATA FUNCTION DATA DATA 0~255 ROM Data 3 0~255 ROM Data 4 0~255 ROM Data 5 0~255 ROM Data 6 0~255 ROM Data 7 169* 0~255 ROM Data 8 0~255 ROM Data 9 231*...
Page 38 3. IN THE CHASSIS ELECTRICAL PARTS LIST The reason for change. A : Misprint B : Quality Reliability C : Standardization D : Design E : Add as a possible sub F : Schematic location change G : Purchasing Request Page &...
Page 39 610 284 9233 ASSY, WIRE GND CONNECTOR ASSY, WIRE GND CONNECTOR 610 287 6598 4. IN THE ACCESSORY PARTS LIST PAGE 21 MODEL DS19500 (Chassis No. 19500-03) MODEL DS19500 (Chassis No. 19500-00) KEY NO. Part No. Description Part No. Description 610 282 3448 OWNER’S MANUAL...
Page 40 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) July / 2001 / 2200 SMC Printed in U.S.A.

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Sanyo DS19500 Manual

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