Ch Don't Stop; Troubleshooting Guide - Daewoo DTQ-20U4SC Service Manual

TROUBLESHOOTING GUIDE

4. CH DON'T MEMORY or SKIP
Check the input signal conditions
(g)
33V
T-DATA
#27
I701
MICOM
#10 #11
X701
32.768KHz
Check the crystal
5V
Check 5V/33V LINE
U101
TUNER
CVBS
T-CLOCK
Check T-SDA/SCL
#28
SDA
#29
SCL
#30
#12
SDA
ST-BY 5V
#5
I703 EEPROM
ST-BY 5V
NG : Loss of signal or weak signal
OK : Go to the figure (g)
Check Composite Video Signal
#61
#4
#3
SCL
Check SDA/SCL
#6
#8
-60-
I501
VDP
Appendix