Daewoo NC-8011 - Page 10

TroubleShootingGuide
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Front &Tuner Section(only NC-8011DE Model)
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Change to tuner function
AC cord in
Yes
Power ON/OFF ON
Yes
Yes
no
no
LCD Display and back
light
1.Check LC701
2.Check IC701
3.Check LD701 and LD702
4.Check X701(32.768KHZ)
Yes
Tuner LCD Display
no
1.Check IC102 of 2pin Voltage:3.3V
2.Check IC700(CS9255)
3.Check Q002(S9018) and
Q003(S9018).
4.Check IC701 (CA6808F) of 40pin and
41pin.
5.Check X702(32.768KHZ)
Yes
Function command
no
Yes
1.Check IC701 of 7pin /8pin /9pin/10pin/11pin
2.Check SW701/SW702/SW703/SW704/
SW705/SW706/SW707/SW708/SW709/
SW710/SW711/SW712/SW713/SW714
SW715/SW716/SW717/SW718/SW719.
1.Check F980，F981
2.Check PT903
3.Check RF982，RF983
4.Check CN902,CW902
5.Check CW401 of 4pin(main power on)
6.Check IC900 of 3pin:9V
7.Check Q902 collector:9V
8.Check IC704 of 2pin:3.3V
9.Check IC701 of 22pin:3.3V
Function LED light
no
1.Check CN700 of 8pin:9V
2.Check LD705/LD706/LD707/LD709/
LD710/LD711/LD712/LD713/LD714/
LD715
Yes