Daewoo NC-8011 Service Manual page 12

Trouble Shooting Guide
1
Front &Tuner Section(only NC-8015/8016DE Model)
3
AC cord in
3
4
Power ON/OFF ON
5
LCD Display and back
light
6
7
Function LED light
8
9
Function command
Change to tuner function
Tuner LCD Display
Yes
no
Yes
no
Yes
no
Yes
no
Yes
Yes
no
Yes
1.Check F901
2.Check PT901
3.Check CN902 of 6pin:5V
4.Check CN902 of 7pin:(main power on)
5.Check IC911 of 3pin:9V.
6.Check IC704 of 2pin:3.3V
7.Check IC701 of 22pin:3.3V
1.Check LC701
2.Check IC701
3.Check LD701 and LD702
4.Check X701(32.768KHZ)
1.Check CN700 of 10pin:5V
2.Check LD705/LD706/LD707/LD709/
LD710/LD711/LD712/LD713/LD714/
LD715
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 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)
1
3
3
4
5
6
7
8
9