GENERAL
This 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 SYSTEM
1. Enter the Service Menu:
• While pressing the MENU key, 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 to adjust the data.
3. Exit from the Service Menu:
• Press the MENU key to turn off the Service Menu display.
SERVICE ADJUSTMENTS
— 3 —
OPT XX
Figure 1. Service Menu Display
TITLE
HEXADECIMAL DATA
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, the Service Menu No. 4 VS (V Size), No. 7 VLN (V Linearity) No. 10 VSC (V S Cor.)
No. 21 SBI (Sub Bias), No. 32 BSG (Blk Stk Gain), No. 42 RAD (RF AGC Delay), No. 49 STI (Sub Tint), No. 50 SSH (Sub
Sharp), and No. 51 OPT (Option 1) should be set up for proper TV operation before attempting the service adjust-
ments.
Bus data is in the hexadecimal format.
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. 4 VS (V Size) with ▲ or ▼ key. Adjust the data with + or – key for 50.
4. Select No. 7 VLN (V Linearity) with ▲ or ▼ key. Adjust the data with + or – key for 15.
5. Select No. 10 VSC (V S Correction) with ▲ or ▼ key. Adjust the data with + or – key for 0A.
6. Select No. 32 BSG (Blk Stk Gain) with ▲ or ▼ key. Adjust the data with + or – key for 02.
7. Select No. 42 RAD (RF AGC Delay) with ▲ or ▼ key. Adjust the data with + or – key for 20.
8. Select No. 49 STI (Sub Tint) with ▲ or ▼ key. Adjust the data with + or – key for 17.
9. Select No. 51 OPT (Option 1 with ▲ or ▼ key. Adjust the data with + or – key for 04.
10. Press the MENU key to turn off the Service Menu display.
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