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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 opera-
tion. 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. 007 VLN (V Linearity), No. 010 VSC (V S-Correction), No. 021 SBI
(Sub-Bias), No. 023 POS (Pre/Over-Shoot), No. 028 PRE (Pre-Shoot Width), No. 037 AF (AutoFlesh), No. 041 RYA (R-Y/B-Y
Angle) and No. 055 STI (Sub-Tint) should be set 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. 007 VLN (V Linearity) with
4. Select No. 010 VSC (V S-Correction) with
5. Select No. 021 SBI (Sub-Bias) with
6. Select No. 023 POS (Pre/Over-Shoot) with
7. Select No. 028 PRE (Pre-Shoot Width) with
8. Select No. 037 AF (AutoFlesh) with
9. Select No. 041 RYA (R-Y/B-Y Angle) with
10. Select No. 055 STI (Sub-Tint) with
11. Press the MENU key to turn off the Service Menu display.
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 below.)
2. Service Adjustments:
•
Press the
or
key to select the desired service menu 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
or
key. Adjust the data with + or – key for 16.
or
key. Adjust the data with + or – key for 7.
or
key. Adjust the data with + or – key for 60.
or
key. Adjust the data with + or – key for 1.
or
key. Adjust the data with + or – key for 3.
or
key. Adjust the data with + or – key for 1.
or
key. Adjust the data with + or – key for 2.
or
key. Adjust the data with + or – key for 18.
No.
Data
XXX XXX XXX XXXXXXXX
BINARY DATA
TITLE
(8 bit)
DECIMAL DATA
(ZERO SUPPRESSED)
No. 001-046, 053-057, 59, 63, 74-146
Figure 1. Service Menu Display
No.
OR
72 DRV R XXX B XXX
TITLE
DECIMAL DATA
(ZERO SUPPRESSED)
No. 072
— 3 —
Data
DECIMAL DATA
(ZERO SUPPRESSED)
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