Insignia IS-TVDVD20A - Test Point Waveform; All Ics Voltages

10
In 1 6 Ch 1 input Out 2 (+) 12 Ch 2 output (+)
4. N301: Vertical output (TDA8357A)
Symbol PIN Function Symbol PIN Function
INV IN 1 Input PUMP UP 6 Pump up power
INV IN 2 Input V OUT 7 Vertical output
Vcc 3 Pump up power V PRO 8 Vertical protection
V OUT 4 Vertical output V FEEDBACK 9 Vertical feedback
GND 5 Ground
5. U101：Tuner
PIN Function PIN Function
1 AGC 7 +5V
2 vacant 8 vacant
3 Gnd 9 Vt 33V
4 SCL 10 Gnd
5 SDA 11 IF Out
6 +5V
6. Test point Waveforms
5Vpp
0.9Vpp
1.3Vpp
H
H
1Vpp
V
CRT KB
CRT KG CRT KR
95Vpp
95Vpp
95Vpp
H
H H
TDA
8377
PIN53
2.5Vpp
2.5Vpp
3.8Vpp
H H
H
TDA
8377
PIN52
TDA
8377
PIN51
TDA
8377
PIN
33
TDA
8377
PIN
34
0.8Vpp
V
TDA8377 PIN21 TDA8377 PIN22 TDA8377 PIN59
1.2Vpp
2.6Vpp
H
H
TDA8377 PIN40
TDA8377 PIN38