Toshiba VTW21FPR Service manual

FILE NO. 810-200551
SERVICE MANUAL
COMBINATION 21" FLAT TV AND VIDEO CASSETTE RECORDER/DVD VIDEO PLAYER TELE TEXT
VTW21FQR
DOCUMENT CREATED IN JAPAN, June, 2005
MPEG/MICON/DSP/RF_AMP
WAVEFORMS
AUDIO/VIDEO
DEFLECTION
10ns 100mV
5ns 20mV
20ns
1.0V
500µs 500mV
500µs 500mV
10µs 200mV
6
7
1
2
5ms
10.0V
20µs
2.0V
5m
2.0V
11
12
s
3
200ns
1.0V
4
MEMORY
5ns 500mV
5
10µs 200mV
10µs 200mV
10
0.1ms
20.0V
13
14
8
9
CRT/POWER SW/OPERATION
20µs
50.0V
15
NOTE:
NOTE:
The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
I-1
WAVEFORMS
20µs
50.0V
16
20µs
50.0V
17
Y/C/AUDIO/HEAD AMP
REC 5µs
20.0V
REC 10µs
0.5V
23
MICON
REC 10µs
1.0V
24
REC 1ms
2.0V
REC 20µs
2.0V
PB
0.5µs
2.0V
REC 5ms
2.0V
28
29
PB 5ms 50mV
PB 10ms
2.0V
20
21
22
REC 1ms
2.0V
PB
0.5µs
2.0V
25
26
27
REC 5ms
2.0V
REC 20µs
2.0V
30
31
32
NOTE:
The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
I-2
DVD IN/OUT
PB
0.5ms
0.5V
33
PB
0.5ms
0.5V
34
WAVEFORMS
DEMODULATOR/21PIN
REC
0.5ms
0.5V
35
REC 10µs
0.5V
36
NOTE:
The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
I-3
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