Sony HCD-DX2D Service Manual page 21

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• Circuit Boards Location
KEY board
HP board
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POWER board
w w w
HCD-DX2D
AV board (AEP,UK,RU)
AV board (EXCEPT AEP, UK, RU)
MAIN board
MPEG board
AMP board
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• Waveforms
– MPEG Board –
1
U2 <zbm (RFP)
1000 mVp-p
200 mV/DIV, 100 ns/DIV
2
U2 <zvv (GCLX)
37 ns
1 V/DIV, 20 ns/DIV
3
U2 <zb/ (CVBS/C)
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H
500 mV/DIV, 20 µ s/DIV
4
U2 <zv, (CVBS/G/Y)
H
1 V/DIV, 20 µ s/DIV
4
U2 <zv, (CVBS/G/Y)
(AEP,UK,RU) 2
*
H
500 mV/DIV, 20 µ s/DIV
u 1 6 3
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* 1: AEP, UK, RU: S801 – COMPONENT
* 2: AEP, UK, RU: S801 – EURO AV
5
U2 <zbc (C/B/U) 1
*
1.1 Vp-p
H
500 mV/DIV, 20 µ s/DIV
5
U2 <zbc (C/B/U)
2
(AEP,UK,RU) *
592 mVp-p
4.1 Vp-p
H
500 mV/DIV, 20 µ s/DIV
6
U2 <zbz (Y/R/V) 1
*
2 Vp-p
1 5 1 5 0 8 9 2 4
0.9 Vp-p
H
500 mV/DIV, 20 µ s/DIV
6
* 1 U2 <zbz (Y/R/V)
(AEP,UK,RU) * 2
530 mVp-p
2 Vp-p
H
500 mV/DIV, 20 µ s/DIV
640 mVp-p
m
c o
HCD-DX2D
Ver. 1.1
2
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– MAIN Board –
7
IC501 ej (XT2)
4.1 Vp-p
30.5 µ s
1 V/DIV, 10 µ s/DIV
8
IC501 r; (X2)
3.6 Vp-p
119 ns
1 V/DIV, 50 ns/DIV
9
Q344 (collector)(TAPE REC)
10.9 Vp-p
9 8 2 9 9
11.8 µ s
20 V/DIV, 5 µ s/DIV