Sanyo DS25204 User Manual

GENERAL
This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments.
To enter the Service Menu, first disconnect the AC power cord. Then while pressing the MENU key on the front control panel, recon-
nect the AC power cord. The adjustments can now be made with the remote control or front control panel keys.
ON-SCREEN SERVICE MENU SYSTEM
1. Enter the Service Menu:
• While pressing the MENU key on the front control panel, reconnect the AC
power cord. The Service Menu Display will now appear. (See Figure 1.)
2. Service Adjustments:
• Press the ▲ or ▼ key to select the desired service menu item you want to
adjust. (See page 4 for On-screen Service Menu.)
• Use the + or – key or number keys to adjust the data.
The + or – keys will increase or decrease the data sequentially.
The number keys (0 ~ 7) toggle only their respective bits between 1 and 0.
3. Exit from the Service Menu:
• Press the MENU key to turn off the Service Menu display.
SERVICE ADJUSTMENTS
— 3 —
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.
(See pages 4 – 5 for detailed information.)
INITIAL BUS DATA SETUP
Note:When IC802 (EEPROM) is replaced, change the following initial reference data for proper TV operation before
attempting the service adjustments.
1. Disconnect the AC power cord (AC 120V line).
2. While pressing the MENU key on the front control panel, reconnect the AC power cord.
The Service Menu display will now appear.
3. Select No. 3C SCO (Sub Color) with ▲ or ▼ key. Adjust the data with + or – key for 1D (hex).
4. Select No. 3D STI (Sub Tint) with ▲ or ▼ key. Adjust the data with + or – key for 07 (hex).
5. Select No. 3F SSH (Sub Sharpness) with ▲ or ▼ key. Adjust the data with + or – key for 05 (hex).
6. Select No. 42 VS (V Size) with ▲ or ▼ key. Adjust the data with + or – key for 49 (hex).
7. Select No. 44 GRY7CRS5VLN (Gray / Cross B/W / V Lin) with ▲ or ▼ key. Adjust the data with + or – key for 90 (hex).
8. Select No. 45 HBL5VSC with ▲ or ▼ key. Adjust the data with + or – key for EE (hex).
9. Select No. 4B BGS5RGD4GD (Bγ / RGγ / G Drive) with ▲ or ▼ key. Adjust the data with + or – key for 0B (hex).
10. Select No. 4D SBI (Sub Bias) with ▲ or ▼ key. Adjust the data with + or – key for 38 (hex).
11. Select No. 57 DCR4BSS2BSG (DC Reset / Black Stretch Start / Black Stretch Gain) with ▲ or ▼ key. Adjust the data with
+ or – key for 02 (hex).
12. Select No. 58 AFC7CBP5 (Auto Flesh / Color BPF Bypass) with ▲ or ▼ key. Adjust the data with + or – key for 80 (hex).
13. Select No. 60 HBL5 (H Blanking Left) with ▲ or ▼ key. Adjust the data with + or – key for 00 (hex).
14. Select No. 83 OPT (AV Option) with ▲ or ▼ key. Adjust the data with + or – key for 84 (hex).
15. Select No. 8E SBO (Sub Bright Offset) with ▲ or ▼ key. Adjust the data with + or – key for 02 (hex).
16. Press the MENU key to turn off the Service Menu display.
3C SCO
0A 00001010
Figure 1. Service Menu Display
ITEM NO.
TITLE
BINARY DATA
(8 bit)
HEX DATA

Sanyo DS25204 Specifications

General

Brand	Sanyo
Model	DS25204
Category	CRT TV
Language	English