45
LC-28HM2
AN-28SP2
TROUBLE SHOOTING TABLE
(Continued)
No sound
No sound
No
Are there normal audio outputs
from pins (38) and (40) of
IC401?
No line output
Check the peripherals of IC401.
No
Ye
s
Check the peripherals of IC302.
Check the peripherals of IC704.
No
No color production regardless of
color system change
No
Color production with NTSC, but
no color with PAL and SECAM
No
No color production only with
PAL
No color production only with
SECAM
Check the peripheral circuits of IC801 (iX3323CE).
Check the peripheral circuits of
IC2802 (TA1229N).
Ye
s
No
Are there normal audio outputs
from pins (10) and (16) of
IC302?
Are pins (5) and (7) of IC302
at low level?
Ye
s
No
Are there normal audio outputs
from pins (1) and (7) of IC304?
Check the peripherals of
IC304.
Ye
s
No
Is pin (5) of IC505 at low level?
Check IC505.
Ye
s
Check the peripherals of IC505,
IC303, Q306, Q301, Q302, Q309
and IC307.
No component and PC signals output
Check the peripherals of
IC410, Q407, Q408 and
IC401.
Содержание LC-28HM2
Страница 49: ...49 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT DISPLAY ...
Страница 50: ...50 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT AVC SYSTEM ...
Страница 70: ...76 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Ë CONTROL UNIT DISPLAY ...
Страница 71: ...77 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Ë R C RECEIVER UNIT DISPLAY ...
Страница 74: ...82 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Ë LAMP 1 UNIT DISPLAY ...
Страница 75: ...83 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Ë LAMP 2 UNIT DISPLAY ...
Страница 76: ...84 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Ë LAMP GND UNIT DISPLAY ...
Страница 77: ...85 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Ë FRONT TERMINAL UNIT AVC SYSTEM DUNTKA354NJ01 ...
Страница 90: ...108 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Power Unit Display Component Side ...
Страница 92: ...110 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Main Unit AVC System A Side ...
Страница 93: ...111 LC 28HM2 AN 28SP2 6 5 4 3 2 1 A B C D E F G H Main Unit AVC System B Side ...