Denon AVR-S740H, Руководство по обслуживанию

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SCH15_DIFF-AMP
ANALOG AUDIO DIGITAL AUDIO TMDS SIGNAL ANALOG VIDEO GND LINE POWER- LINE POWER+ LINE DIGITAL VIDEO STBY POWER HDMI
FL
SL
CEN
SR
FR
FROM DIGITAL B'D
AVR-S740H/X1500H DIFF-AMP PART
FL_IN
SL_IN
CEN_IN
SR_IN
FR_IN
1.25mm 15PIN B'D TO B'D
SBL
SBR
SBL_IN
SBR_IN
1.FB_SL
2.FB_SL
3.PRE_-B
4.PRE_-B
5.SL
6.SL
7.AGND
1.FB_FL
2.FB_FL
3.PRE_-B
4.PRE_-B
5.FL
6.FL
7.AGND
1.FB_CEN
2.FB_CEN
3.PRE_-B
4.PRE_-B
5.CEN
6.CEN
7.AGND
1.FB_SR
2.FB_SR
3.PRE_-B
4.PRE_-B
5.SR
6.SR
7.AGND
1.FB_FR
2.FB_FR
3.PRE_-B
4.PRE_-B
5.FR
6.FR
7.AGND
1.FB_SBR
2.FB_SBR
3.PRE_-B
5.SBR
7.AGND
TO
M
AI
N
B'
D
FR
O
UT
TO
M
AI
N
B'
D
SB
L
O
UT
TO
M
AI
N
B'
D
SB
R
O
UT
TO
M
AI
N
B'
D
FL
O
UT
TO
M
AI
N
B'
D
SL
O
UT
TO
M
AI
N
B'
D
CE
N
O
UT
TO
M
AI
N
B'
D
SR
O
UT
6.SBR
4.PRE_-B
BIAS TR PART
1.FB_SBL
2.FB_SBL
3.PRE_AG ND
4.PRE_AG ND
5.SBL
6.SBL
7.AGND
1.B
2.C
3.E
BK202
P
R
E
_
A
G
N
D
P
R
E
_
-B
4
.A
G
N
D
6
.A
G
N
D
8
.A
G
N
D
10
.A
G
N
D
3
.S
R
5
.C
E
N
7.
S
L
9.
FL
11
.S
B
R
15
.+
12
V
12
.A
G
N
D
14
.A
G
N
D
13
.S
B
L
1.
FR
2
.A
G
N
D
TO
M
AI
N
B'
D
SAME BLOCK * 7
*OPTION
*OPTION
*OPTION
*OPTION
*OPTION
*OPTION
*OPTION
C
210
5
50
V
/220
u
F
R2109 33K
R2108 470K
R2107
220 R
211
1
O
P
E
N
R
211
0
47
(1
W
)
R
210
6
1
.2
K
(1
W
)
C2106 33pF
C2104
2200P(M)
C2103 82pF
R
210
4
18
K
R
210
5
1
.2
K
C
210
2
100
V
/470
p
F(
M
)
R2102
680
C2101
50V/47uF
J2101
OPEN
R2103
10K
C
220
5
50
V
/220
u
F
R2209 33K
R2208 470K
R2207
220
R
221
1
O
P
E
N
R
221
0
47
(1
W
)
R
220
6
1
.2
K
(1
W
)
C2206 33pF
C2204
2200P(M)
C2203 82pF
R
220
4
18
K
R
220
5
1
.2
K
C
220
2
100
V
/470
p
F(
M
)
R2202
680
C2201
50V/47uF
J2201
OPEN
R2203
10K
C
230
5
50
V
/220
u
F
R2309 33K
R2308 470K
R2307
220
R
231
1
O
P
E
N
R
231
0
47
(1
W
)
R
230
6
1
.2
K
(1
W
)
C2306 33pF
C2304
2200P(M)
C2303 82pF
R
230
4
18
K
R
230
5
1
.2
K
C
230
2
100
V
/470
p
F(
M
)
R2302
680
C2301
50V/47uF
J2301
OPEN
R2303
10K
C
240
5
50
V
/220
u
F
R2409 33K
R2408 470K
R2407
220
R
241
1
O
P
E
N
R
241
0
47
(1
W
)
R
240
6
1
.2
K
(1
W
)
C2406 33pF
C2404
2200P(M)
C2403 82pF
R
240
4
18
K
R
240
5
1
.2
K
C
240
2
100
V
/470
p
F(
M
)
R2402
680
C2401
50V/47uF
J2401
OPEN
R2403
10K
C
250
5
50
V
/220
u
F
R2509 33K
R2508 470K
R2507
220
R
251
1
O
P
E
N
R
251
0
47
(1
W
)
R
250
6
1
.2
K
(1
W
)
C2506 33pF
C2504
2200P(M)
C2503 82pF
R
250
4
18
K
R
250
5
1
.2
K
C
250
2
100
V
/470
p
F(
M
)
R2502
680
C2501
50V/47uF
J2501
OPEN
R2503
10K
R
210
1
100
K
R
220
1
100
K
R
230
1
100
K
R
240
1
100
K
R
250
1
100
K
D2101
OPEN
D2201
OPEN
D2301
OPEN
D2401
OPEN
D2501
OPEN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN201
C
280
0
50
V
/47
u
F
Q2103
KSC1845F
Q2203
KSC1845F
Q2303
KSC1845F
Q2403
KSC1845F
Q2503
KSC1845F
Q2101
KSA992F
Q2201
KSA992F
Q2301
KSA992F
Q2401
KSA992F
Q2102
KSA992F
Q2202
KSA992F
Q2302
KSA992F
Q2402
KSA992F
Q2502
KSA992F
Q2501
KSA992F
2
1
3
4
6
5
7
C
N
51
A
2
1
3
4
6
5
7
C
N
52
A
2
1
3
4
6
5
7
C
N
53
A
2
1
3
4
6
5
7
C
N
54
A
2
1
3
4
6
5
7
C
N
55
A
2
1
3
4
6
5
7
C
N
56
A
2
1
3
4
6
5
7
C
N
57
A
C
260
5
50
V
/220
u
F
R2609 33K
R2608 470K
R2607
220
R
261
1
O
P
E
N
R
261
0
47
(1
W
)
R
260
6
1
.2
K
(1
W
)
C2606 33pF
C2604
2200P(M)
C2603 82pF
R
260
4
18
K
R
260
5
1
.2
K
C
260
2
100
V
/470
p
F(
M
)
R2602
680
C2601
50V/47uF
J2601
OPEN
R2603
10K
C
270
5
50
V
/220
u
F
R2709 33K
R2708 470K
R2707
220
R
271
1
O
P
E
N
R
271
0
47
(1
W
)
R
270
6
1
.2
K
(1
W
)
C2706 33pF
C2704
2200P(M)
C2703 82pF
R
270
4
18
K
R
270
5
1
.2
K
C
270
2
100
V
/470
p
F(
M
)
R2702
680
C2701
50V/47uF
J2701
OPEN
R2703
10K
R
260
1
100
K
R
270
1
100
K
D2601
OPEN
D2701
OPEN
Q2603
KSC1845F
Q2703
KSC1845F
Q2601
KSA992F
Q2602
KSA992F
Q2702
KSA992F
Q2701
KSA992F
1
2
3
BN51A
(3P,2MM,50MM,# 24)
BK204
CMD1A387-V1
BK202
CMD1A387-V1
BK201
CMD1A569-V1
BK203
CMD1A569-V1
C
290
1
O
P
E
N
C
290
2
O
P
E
N
C
290
5
O
P
E
N
C
290
6
O
P
E
N
C
290
0
O
P
E
N
C
290
3
O
P
E
N
C
290
4
O
P
E
N
C
290
7
O
P
E
N
J2404
OPEN
J2504
OPEN
J2304
OPEN
J2204
OPEN
J2104
OPEN
J2604
OPEN
J2704
OPEN
J2605
OPEN
J260
6
J290
1
O
P
E
N
J290
2
O
P
E
N
J290
3
O
P
E
N
J290
4
O
P
E
N
Q2104
KTC3964
Point A Point B
12V 0.6V
-56.6V
-56.8V
-56.1V
Point A
Point B
Measurement condition
・ Voltage measurement
No signal
・ Waveform measurement
INPUT: 200mVrms / 1KHz (ANALOG)
Surround mode: MCh Stereo
VOL: 70
Speaker load: 8ohms
CN201
TO CN822
CN51A
TO CN51B
CN52A
TO CN52B
CN53A
TO CN53B
CN54A
TO CN54B
CN55A
TO CN55B
CN56A
TO CN56B
CN57A
TO CN57B
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
23