Yamaha DSP-AX620, Service Manual

Page: 59 / 82

A B C D E F G H
1
2
3
4
5
6
I J K L M N
7
8
9
10
DSP-AX620
■
SCHEMATIC DIAGRAM (MAIN 1/2)
* All voltage are measured with a 10M
Ω
/V DC electric volt meter.
* Components having special characteristics are marked
Z
and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
Conditions
• INPUT: DVD auto
• PROGRAM: PRO LOGIC DSP
POWER AMP (L ch)
POWER AMP (R ch)
POWER AMP (RL ch)
POWER AMP (RR ch)
POWER AMP (C ch)
RELAY DRIVER
– VP
REGULATOR
RL
L
C
-12.1
0
0
–0.6
52.6
0
–0.6
53.3
52.6
53.1
1.0
0
–0.6
52.6
0
–0.6
53.3
52.6
53.1
1.0
0
–0.6
52.6
0
–0.6
53.3
52.6
53.1
1.0
0
–0.6
52.6
0
0
–0.6
53.3
52.6
53.1
1.0
0
–0.6
52.6
0
0
0
0
35.6
29.8
41.8
41.8
53.9 53.9
53.8
53.3
53.3
41.8
35.6
0
0
–0.6 –0.6
53.3
52.6
53.1
1.0
52.4
0.6
54.2
54.2
0
54.1
0
0.6
53.9
0
0
1.1
1.1
–1.0
–1.0
–0.5
–0.5
0
0
0
–54.2
–54.2
–1.0
–53.0
–0.4
52.4
0.6
54.2
0
0.6
53.2
0
0
1.1
1.1
–1.0
–1.0
–0.5
–0.5
0
0
0
–54.2
–54.2
–1.0
–53.0
–0.4
54.2
0.6 54.2
0
0.6
53.9
0
0
1.1
1.1
–1.0
–1.0
–0.5
–0.5
0
0
0
–54.2
–54.2
–1.0
–53.0
–0.4
54.2
0.6
54.2
0
0.6
53.7
0
0
1.1
1.1
–1.0
–1.0
–0.5
–0.5
0
0
0
–54.2
–54.2
–1.0
–53.0
–0.4
54.2
0.6
54.2
0
0.6
53.9
0
0
0
–1.0
–1.0
–0.5
–0.5
0
0
0
–54.2
–54.2 –53.9
–53.9
–27.4 –35.6
–34.9
–34.9
–35.5 –36.1
–53.6
–54.1
–54.1
–53.0
–54.1
–0.4
–1.0
0
0
0
0
–53.0
35.1
35.0
35.0
0
0
0
0.7
0
0.7
0.7
0
34.5
0.1
0.1
0.8
0
0.1
12.3
24.7
–34.5
–28.1
–28.8
–28.8
0 0
0.2
0.8
4.8
0
0.7
0.7
0
0.7
0
24.5
12.4
0.2
24.7
12.4
0.2
CIRCUIT CHANGES BY MARKET.
X : NOT USED
(K)
s41 s41
s41
s41
s41
s37
s37
s39 s39
s38 s38
W105B
W106B
to MAIN (3)
s7 s7
s7 s7
s39
s37
s39
s37
s39
s37
s39
s37
C136-138
140, 141, 145, 146
C332-335 4700P
[VI71630]
4700P
[VI71630]
4700P
[VI71630]
C253, 256 100P
[VQ64560]
100P
[VQ64560]
100P
[VQ64560]
220P
[VQ46260]
220P
[VQ46260]
220P
[VQ46260]
C251 220P/200
[VK53400]
220P/200
[VK53400]
220P/200
[VK53400]
1000P/100
[UT65310]
1000P/100
[UT65310]
1000P/100
[UT65310]
37 C139, 142, 341-344
0.022
[UA65422]
0.022
[UA65422]
0.022
[UA65422]
38 C331, 336
0.033
[UA65433]
0.033
[UA65433]
0.033
[UA65433]
40 C339, 340
0.01
[VI71670]
0.01
[VI71670]
0.01
[VI71670]
41 R214, 215, 223-225
47K
[HF45747]
47K
[HF45747]
39K
[HF45739]
39 R331-336
2.2
[HV75322]
2.2
[HV75322]
2.2
[HV75322]
47K
[HF45747]
47K
[HF45747]
47K
[HF45747]
s40 s40
E-72/J-70
P-E69/J67
M-3
P-E73/J71
F-7
P-E71/J69
H-4
P-E70/J68
K-5
P-E73/J71
C-3
P-E73/J71
A-4
SAME PAGE
K-4
SAME PAGE
K-9