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 ion.TV operat
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 SETUP
Note: When IC802 (EEPROM) is replaced,the Service Menu NO. 03 HP (H Phase), NO. 07 VLN (V Lin), NO. 28 PRE (Preshoot
Adj), NO. 37 AF (Auto Flesh), NO. 57 OPT (SA Option), and NO. 58 OP2 (SA Option 2) should be set up for proper TV oper-
ation 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. 23 POS (Pre/Over SW) with or key. Adjust the data with + or - key for 1.
4. Select NO. 28 PRE (Preshoot Adj) with or key. Adjust the data with + or - key for 2.
5. Select NO. 37 AF (Auto Flesh) with or key. Adjust the data with + or - key for 1.
6. Select NO. 57 OPT (SA Option) with or key. Adjust the data with + or - key for 100.
7. Select NO. 58 OP2 (SA Option 2) with or key. Adjust the data with + or - key for 32.
8. Select NO. 63 SPO (Sub Bright Offset) with or key. Adjust the data with + or - key for 6.
9. Press the MENU key to turn off the Service Menu display.
ON-SCREEN SERVICE MENU SYSTEM
1. Enter the Service Menu:
NO.DATA
XX OPT XXX XXXXXXXX
TITLEBINARY DATA
(8 bit)
ITEM NO.DECIMAL DATA
Figure 1. Service Menu Display
2. Service Adjustments:
?Press the or key to select the desired service menu you want to adjust. (See pages 4 for On-screen Service Menu.)
?Use the +or -key to adjust the data.
3. Exit from the Service Menu:
?Press the MENUkey to turn off the Service Menu display.
N 3 N |
ACEC
