Toshiba 37WL58A, Service Manual

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4. SELECTING THE ADJUSTING ITEMS
1) Every pressing of CHANNEL
s
button in the service mode changes the adjustment items in the order of table-2.
(
t
button for reverse order)
5. ADJUSTING THE DATA
1) Pressing of VOLUME
;
+/– button will change the value of data in the range from 00H to FFH. The variable range
depends on the adjusting item.
6. EXIT FROM SERVICE MODE
1) Pressing POWER button to turn off the TV once.
■
INITIALIZATION OF MEMORY DATA
After replacing
EEPROM IC
, the following initialization is required.
1. Enter the service mode, then select any register item.
2. Press and hold the CALL button on the Remote, then press the CHANNEL
s
button on the TV. The initialization of
EEPROM IC
has b
een complated.
3. Check the picture carefully. If necessary, adjust any adjustment item above.
Perform “Auto tune” on the owner’s manual.
CAUTION: Never attempt to initialize the data unless
EEPROM IC
has been replaced.
7. TEST SIGNAL SELECTION
1) Every pressing of
a
button on the Remote Control changes the built-in test patterns on screen as described below
in SERVICE MODE.
Signals Picture
• Red raster
• Green raster
• Blue raster
• All Black
• All White
R
All Black All White
B Signal off G