Daewoo NC-8913 Service Manual page 10

Trouble Shooting Guide
1
Front Section
3
AC cord in
3
4
Power ON/OFF ON
5
6
LCD Display and back
light
7
8
Function command
9
Change to tuner function
Tuner LCD Display
ST. LED on
Yes
Yes
Yes
no
Yes
Yes
Yes
no
Yes
1.Check F980，F981
2.Check PT903
3.Check RF982，RF983
4.Check CN902,CN701
5.Check IC900 of 3pin:9V ,
no
IC704 of 2pin:3.3V
6.IC701 of 22pin:3.3V
1.Check LC701
no
2.Check IC701
3.Check LD701 and LD702
4.Check X701(32.768KHZ)
1.Check IC701 of 7pin /8pin /9pin/10pin
2.Check SW701/SW702/SW703/SW704/
SW705/SW706/SW707/SW708/SW709/
SW710/SW711/SW712.
.
1.Check IC102 of 2pin Voltage:3.3V
2.Check IC700(CS9255)
3.Check Q002(S9018) and
no
Q003(S9018).
4.Check IC701 (CA6808F) of 40pin and
41pin.
5.Check X702(32.768KHZ)
1.Check IC101(TA2111N) of 11pin.
2.Check IC701(CA6808F) of 43pin
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3
4
5
6
7
8
9