-59-
TROUBLESHOOTING GUIDE
Appendix
3. NO SOUND
(e)
33V
5V
SIF OUT
Check
X601
the crystal
18.432MHz
#58
#63
#62
#27
#28
#57
Check Vsup +5V
#29
#10
#39
Check Vsup +8V
#30
SDA
#9
#18
Check Vsup +5V
#10 #11
#12
SCL
X701
32.768KHz
ST-BY
5V
Check clock/data signal
Check the crystal
(f)
Check Vcc of sound AMP
Sound B+ 14V
#3#16
Check audio output signal
#1
Speaker L
#14
Speaker R
Audio input L
#6
I602
TDA8944J
Audio input R
#12
#4
H-phone L
MUTE
#10
#17
H-phone R
Check audio input signal
Check MSP output data signal of I601 #28, #29
U101
TUNER
SIF
T-DATA T-CLOCK
NG : Go to the figure (e)
OK : Go to the figure (f)
I701
MICOM
I601
MSP
Содержание DTQ 27U4SC
Страница 7: ... 6 CIRCUIT BLOCK DIAGRAM ...
Страница 14: ... 13 SCHEMATIC DIAGRAM 20U4 SHEET 1 ...
Страница 15: ... 14 SCHEMATIC DIAGRAM 20U4 SHEET 2 ...
Страница 16: ... 15 SCHEMATIC DIAGRAM 27U4 SHEET 1 ...
Страница 17: ... 16 SCHEMATIC DIAGRAM 27U4 SHEET 2 ...
Страница 46: ... 45 PRINTED CIRCUIT BOARD CN 230F MAIN ...
Страница 47: ... 46 PRINTED CIRCUIT BOARD CN 230F 20U4 CRT ...
Страница 48: ... 47 PRINTED CIRCUIT BOARD CN 230F 27U4 CRT ...
Страница 57: ... 56 WAVEFORMS Appendix 17 SVM Q909 BASE 18 I901 PIN7 ROUT ...
Страница 64: ...PRINTED DATE Mar 2003 ...