Sanyo CP21SE1K - Troubleshooting: Voltages and Waveforms; Main and CRT Board Signal Charts

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Voltages and Waveforms Charts
Note: Voltages and waveforms were measured with colour bar signal and controls adjusted for normal picture.
Main Board
Q111
E 0.5V
C 4.4V
B 1.2V
Q1003
E 2.4V
C 7.6V
B 3.1V
Q431
E 0V
C 16V
B 0V
Q1002
E 4.9V
C 0V
B 3.5V
Q432
E 0V
C 342V
B 1.4V
Q511
E 0V
C 2.8V
E 0V
Q683
E 26.3V
C 26.2V
B 25.6V
Q684
E0V
C0V
B 0.6V
Q632
E0V
C 7.9V
B0V
Q631
E 6.2V
C 11.9V
B 6.8V
Q886
E0V
C0V
B 0.6V
Q202
E5V
C 7.5V
B 5.7V
1
000Vp-p
Hor
iz.
4.4Vp-p
4.4Vp-p
4.4Vp-p
4.6Vp-p
0.1Vp-p
48Vp-p
20.2Vp-p
1016Vp-p
41.6Vp-p
IC201-pin44
<Sandcastle>
IC201-pin14
<H drive>
IC201-pin54
<R out>
IC201-pin55
<G out>
IC201-pin56
<B out>
IC201-pin30
<CVBS int.>
IC501-pin9
<V out>
Q432-C
<H out>
Q432-B
<H out>
IC601-pin1
<Power out>
436Vp-p
Q431-C
<H drive>
4Vp-p
1.12Vp-p
IC201-pin10
<V drive>
IC802 (MEMORY)
Pin-1 GND 2 GND 3 GND 4 GND 5 5V 6 5V 7 0V 8 5V
IC001 (AUDIO AMP.)
Pin-1 0V 2 11.9V 3 0.7V 4 0V 5 0.7V 6 3.9V 7 0V 8 0V 9 11.5V
10 5.6V 11 0V 12 5.7V 13 0V 14 5.5V 15 0V
IC601 (POWER)
Pin-1347V~ 2 0V 3 19.3V 4 0V 5 1.3V 6 0.8V
IC1200 (AUDIO CONTROL)
Pin-1 3.6V 2 3.6V 3 3.6V 4 3.6V 5 3.6V 6 3.6V 7 3.6V 8 3.6V 9 3.6V
10 3.6V 11 3.6V 12 0V 13 0V 14 0V 15 7.2V 16 7.2V 17 3.4V 18 3.4V
19 3.6V 20 3.6V 21 3.6V 22 3.6V 23 3.6V 24 NC 25 3.6V 26 3.6V 27 0V
28 0V
Q206
E 1.7V
C 11.9V
B 2.3V
Q203
E 7.9V
C 11.1V
B 8.5V
Q801
E 3.4V
C 12.5V
B 4.1V
Q802
E 3.4V
C0V
B 3.2V
CRT Board
Q122
E0V
C0V
B 0.6V
IC501 (VERT. OUT)
Pin-1 2.4V 2 24.9V 3 1V 4 GND 5 11.2V 6 24.2V 7 2.5V
Q703
E 2.4V
C -12V
B 2.8V
Q701
E 2.5V
C -11.4V
B 2.9V
Q705
E 2.3V
C 12V
B 2.9V
Q701-B
<B drive>
Q705-C
<G-out>
Q701-C
<B-out>
Q703-C
<R-out>
Q703-B
<R drive>
Q705-B
<G drive>
108Vp-p
5.2Vp-p 98Vp-p
5.6Vp-p
4.6Vp-p
114Vp-p
SM_BE6V PWB & WAVEFORM 5/9/08 11:41 AM Page 34