Sanyo DS31520 Service Manual

Also see for DS31520: Owner's manual Owner's manual

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Sanyo DS31520 Service Manual Manual pdf 3 page image

GENERALThis set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments.ON-SCREEN SERVICE MENU SYSTEM1. Enter the Service Menu:ï While pressing the MENU key, reconnect the AC power cord. The Service Menu Display will now appear. (See Figure 1.)2. Service Adjustments:ï Press the or key to select the desired service menu you want to adjust. (See page 4 for On-screen Service Menu.)ï Use the + or – key to adjust the data.3. Exit from the Service Menu:ï Press the MENU key to turn off the Service Menu display.SERVICE ADJUSTMENTS— 3 —IC802 (EEPROM) REPLACEMENTWhen 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.(See pages 4 – 6 for detailed information.)INITIAL BUS DATA SETUPNote: When IC802 (EEPROM) is replaced, the Service Menu NO. 03 HP (H Phase), NO. 05 VPO (V Position), NO. 07 VLN(V Lin), NO. 23 POS (Preshoot Overshoot Switch), NO. 28 PRE (Preshoot Adj), NO. 29 WP (White Peak Limiter),NO. 32 BSG (Black Str Gain), NO. 34 DCR (DC Reset), NO. 37 AF (Auto Flesh), NO. 41 RYA (R-Y/B-Y Angle), NO 48EWA (E/W Amp), NO. 49 EWT (E/W Tilt), NO. 50 EWP (E/W Corner Top), NO. 51 EWB (E/W Corner Bottom), NO. 52HSC (Horz Size Comp), NO. 55 STI ( Sub Tint), NO. 57 OPT (SA Option ), and NO. 58 OP2 (SA Option 2) should beset up for proper TV operation before attempting the service adjustments.1. Disconnect the AC power cord (AC 120V line).2. While pressing the MENU key, reconnect the AC power cord. The Service Menu display will now appear.3. Select NO. 03 HP (H Phase) with or key. Adjust the data with + or – key for 13.4. Select NO. 05 VPO (V Position) with or key. Adjust the data with + or – key for 20.5. Select NO. 07 VLN (V Lin) with or key. Adjust the data with + or – key for 20.6. Select NO. 23 POS (Pre/Over Switch) with or key. Adjust the data with + or – key for 1.7. Select NO. 28 PRE (Preshoot Adj) with or key. Adjust the data with + or – key for 3.8. Select NO. 29 WP (White Peak Limiter) with or key. Adjust the data with + or – key for 1.9. Select NO. 32 BSG (Black Str Gain) with or key. Adjust the data with + or – key for 2.10. Select NO. 34 DCR (DC Reset) with or key. Adjust the data with + or – key for 1.11. Select NO. 37 AF (Auto Flesh) with or key. Adjust the data with + or – key for 1.12. Select NO. 41 RYA (R-Y/B-Y Angle) with or key. Adjust the data with + or – key for 2.13. Select NO. 48 EWA (EW Amp) with or key. Adjust the data with + or – key for 26.14. Select NO. 49 EWT (EW Tilt) with or key. Adjust the data with + or – key for 33.15. Select NO. 50 EWP (EW Corner Top) with or key. Adjust the data with + or – key for 9.16. Select NO. 51 EWB (EW Corner Bottom) with or key. Adjust the data with + or – key for 10.17. Select NO. 52 HSC (Horz Size Comp) with or key. Adjust data with + or – key for 5.18. Select NO. 55 STI (Sub Tint) with or key. Adjust the data with + or – key for 14.19. Select NO. 57 OPT (SA Option ) with or key. Adjust the data with + or – key for 16.20. Select NO. 58 OP2 (SA Option 2) with or key. Adjust the data with + or – key for 66.21. Press the MENU key to turn off the Service Menu display.NO. DATAXX OPT XXX XXXXXXXXFigure 1. Service Menu DisplayITEM NO.TITLE BINARY DATA(8 bit)DECIMAL DATA