DAEWOO ELECTRONICS DTQ-14V1FC, Service Manual, Page: 23 / 44

2 22 2
T TR RO OUB UBL LES ESHOO HOOT TING ING G GUIDE UIDE
2. NO PICTURE 2. NO PICTURE
Check the waveform of I101 #46 Check the waveform of I101 #46
NG NG : G : GO O to the to the fifigure gure c c
OK OK : G : Go o the the fifigure gure d d
U102 U102
TUNER TUNER
I701 I701
MICOM MICOM
XC701 XC701
32.768KHz 32.768KHz
# #1 10 0 # #1 11 1 # #1 12 2
ST-BY ST-BY
5V 5V
# #2 29 9 # #3 30 0
Check Check
the crystal the crystal
T-DATA T-DATA T-CLOCK
T-CLOCK
5V 5V
33V 33V
IF OUT IF OUT
Check Check
the voltages the voltages
#14 #14
AFT AFT
#27 #27
#28 #28
SDA SDA
SCL SCL
I101 I101
SF101 SF101
SAW FILTER SAW FILTER
# #5 5 # #6 6
#10 #10
#8 #8
#11 #11
#12 #12
Check Check
IF Vcc (5V) IF Vcc (5V)
Check Check
clock/data signal clock/data signal
Check Check
clock/data signal clock/data signal
#3 #3
#4 #4
Check Check
IF AGC voltage IF AGC voltage
Check Check
RF AGC voltage RF AGC voltage
#46 #46
#44 #44
Z501 Z501
4.5M Trap 4.5M Trap
Check Check
the waveform the waveform
c c
I101 I101
#44 #44 Z501 Z501
C525 C525
Check Check
composite video composite video
#18 #18
Check Check
RBG Vcc (9V) RBG Vcc (9V)
#19 #19
#20
#20
#21
#21
Check Check
RBG signal output RBG signal output
T402 T402
FBT FBT
#13 #13
Check Check
ABL ABL cur curren rentt
#25 #25
Check Check
HOR/BUS Vcc(5V) HOR/BUS Vcc(5V)
#43 #43
Check Check
CHROMA/VER Vcc(5V) CHROMA/VER Vcc(5V)
D405 D405
Check Check
200V LINE 200V LINE
R412 R412
Check Check
heater voltage heater voltage
d d
21V 21V
-3V -3V