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Stereo Receiver
AVR-S740H
Denon AVR-S740H Service Manual
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SCH08_PLD
ANALOG AUDIO
DIGIT
AL AUDIO
TMDS SIGNAL
ANALOG VIDEO
GND LINE
POWER
- LINE
POWER+ LINE
DIGIT
AL VIDEO
STBY POWER
HDMI
T
O
D
IR
P
A
R
T
E
M
U
L
A
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L
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5
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6
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7.
P
LD
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R
IT
E
OE1
OE2
1
2
3
4
5
6
7
8
RN
77
1
100
x4
C
772
1
100
pF
R
774
5
1k
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774
6
10
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10
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3
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TD
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PL
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A1
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01
A2
IO-
00
1
A3
V
CC
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2-1
A4
IO-
00
2
A5
IO-
00
3
A6
IO-
00
4
A7
IO-
00
5
A8
IO-
00
6
A9
IO-
00
7
A1
0
IO-
00
8
A1
1
IO-
00
9
A1
2
IO-
01
0
A1
3
IO-
01
1
A1
4
V
CC
IO
2-2
A1
5
IO-
01
2
A1
6
GN
D-
02
B1
IO-
01
3
B2
GN
D-
03
B3
IO-
01
4
B4
IO-
01
5
B5
IO-
01
6
B6
IO-
01
7
B7
GN
D-
04
B8
IO-
01
8
B9
IO-
01
9
B1
0
IO-
02
0
B1
1
IO-
02
1
B1
2
IO-
02
2
B1
3
IO-
02
3
B1
4
IO-
02
4
B1
5
GN
D-
05
B1
6
IO-
02
5
C1
V
CC
IO
1-1
C2
IO-
02
6
C3
IO-
02
7
C4
IO-
02
8
C5
IO-
02
9
C6
IO-
03
0
C7
IO-
03
1
C8
IO-
03
2
C9
IO-
03
3
C1
0
IO-
03
4
C1
1
IO-
03
5
C1
2
IO-
03
6
C1
3
IO-
03
7
C1
4
IO-
03
8
C1
5
IO-
03
9
C1
6
V
CC
IO
2-3
D1
IO-
04
0
D2
IO-
04
1
D3
IO-
04
2
D4
IO-
04
3
D5
IO-
04
4
D6
NC
-0
1
D7
NC
-0
2
D8
NC
-0
3
D9
NC
-0
4
D1
0
NC
-0
5
D1
1
IO-
04
5
D1
2
IO-
04
6
D1
3
IO-
04
7
D1
4
IO-
04
8
D1
5
IO-
04
9
D1
6
IO-
05
0
E1
IO-
05
1
E2
IO-
05
2
E3
IO-
05
3
E4
IO-
05
4
E5
NC
-0
6
E6
NC
-0
7
E7
NC
-0
8
E8
NC
-0
9
E9
NC
-1
0
E1
0
NC
-1
1
E1
1
NC
-1
2
E1
2
NC
-1
3
E1
3
IO-
05
5
E1
4
IO-
05
6
E1
5
IO-
05
7
E1
6
IO-
05
8
F1
IO-
05
9
F2
IO-
06
0
F3
IO-
06
1
F4
NC
-1
4
F5
NC
-1
5
F6
NC
-1
6
F7
NC
-1
7
F8
V
CC
IO
2-4
F9
V
CC
IO
2-5
F1
0
NC
-1
8
F1
1
NC
-1
9
F1
2
NC
-2
0
F1
3
IO-
06
2
F1
4
IO-
06
3
F1
5
IO-
06
4
F1
6
IO-
06
5
G1
IO-
06
6
G2
IO-
06
7
G3
IO-
06
8
G4
NC
-2
1
G5
NC
-2
2
G6
NC
-2
3
G7
GN
D-
06
G8
GN
D-
07
G9
GN
D-
08
G1
0
GN
D-
09
G1
1
NC
-2
4
G1
2
NC
-2
5
G1
3
NC
-2
6
G1
4
IO-
06
9
G1
5
IO-
07
0
G1
6
IO-
07
1
H1
IO-
07
2
H2
IO-
07
3
H3
IO-
07
4
H4
NC
-2
7
H5
IO-
07
5
H6
V
CC
IO
1-2
H7
GN
D-
10
H8
V
CC
IN
T-1
H9
GN
D-
11
H1
0
V
CC
IN
T-2
H1
1
V
CC
I
O2
-6
H1
2
IO-
07
6
H1
3
NC
-2
8
H1
4
IO-
07
7
H1
5
IO-
07
8
H1
6
IO-
07
9
J1
IO-
08
0
J2
IO-
08
1
J3
IO-
08
2
J4
NC
-3
0
J5
IO-
08
3
J6
V
CC
IO
1-3
J7
V
CC
IN
T-3
J8
GN
D-
12
J9
V
CC
IN
T-4
J10
GN
D-
13
J11
V
CC
IO
2-7
J12
IO-
08
4
J13
NC
-2
9
J14
IO-
08
5
J15
IO-
08
6
J16
IO-
08
7
K1
IO-
08
8
K2
IO-
08
9
K3
IO-
09
0
K4
NC
-3
1
K5
NC
-3
2
K6
NC
-3
3
K7
GN
D-
14
K8
GN
D-
15
K9
GN
D-
16
K1
0
GN
D-
17
K1
1
NC
-3
4
K1
2
NC
-3
5
K1
3
NC
-3
6
K1
4
IO-
09
1
K1
5
IO-
09
2
K1
6
IO-
09
3
L1
IO-
09
4
L2
IO-
09
5
L3
IO-
09
6
L4
IO-
09
7
L5
NC
-3
7
L6
TD
I
L7
NC
-3
8
L8
V
CC
IO
1-4
L9
V
CC
IO
1-5
L1
0
NC
-3
9
L1
1
NC
-4
0
L1
2
NC
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1
L1
3
IO-
09
8
L1
4
IO-
09
9
L1
5
IO
-
10
0
L1
6
IO-
10
1
M1
IO-
10
2
M2
IO-
10
3
M3
IO-
10
4
M4
IO-
10
5
M5
TD
O
M6
NC
-4
2
M7
NC
-4
3
M8
IO-
10
6
M9
IO-
10
7
M1
0
NC
-4
4
M1
1
NC
-4
5
M1
2
NC
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6
M1
3
IO-
10
8
M1
4
IO-
10
9
M1
5
IO-
11
0
M1
6
IO-
11
1
N1
IO-
11
2
N2
IO-
11
3
N3
IO-
11
4
N4
TM
S
N5
IO-
11
5
N6
NC
-4
7
N7
NC
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8
N8
NC
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9
N9
NC
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0
N1
0
NC
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1
N1
1
NC
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2
N1
2
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6
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3
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11
7
N1
4
IO-
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N1
5
IO-
11
9
N1
6
IO-
12
0
P1
V
CC
IO
1-8
P2
IO-
12
1
P3
TC
K
P4
IO-
12
2
P5
IO-
12
3
P6
IO-
12
4
P7
IO-
12
5
P8
IO-
12
6
P9
IO-
12
7
P1
0
IO-
12
8
P1
1
IO-
12
9
P1
2
IO-
13
0
P1
3
IO-
13
1
P1
4
IO-
13
2
P1
5
IO-
13
3
P1
6
V
CC
IO
2-8
R1
IO-
13
4
R2
GN
D-
18
R3
IO-
13
5
R4
IO-
13
6
R5
IO-
13
7
R6
IO-
13
8
R7
IO-
13
9
R8
IO-
14
0
R9
IO-
14
1
R1
0
IO-
14
2
R1
1
IO-
14
3
R1
2
IO-
14
4
R1
3
IO-
14
5
R1
4
IO-
14
6
R1
5
GN
D-
19
R1
6
IO-
14
7
T1
GN
D-
20
T2
IO-
14
8
T3
V
CC
IO
1-6
T4
IO-
14
9
T5
IO-
15
0
T6
IO-
15
1
T7
IO-
15
2
T8
IO-
15
3
T9
IO-
15
4
T1
0
IO-
15
5
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1
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15
6
T1
2
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15
7
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3
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8
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4
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CC
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1-7
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G_
T
D
I
RX
M
CK
/DS
D
M
CK
RX
I2
S0
/
D
SD
1
RX
I2
S2
/
D
SD
3
RX
I2
S3
/
D
SD
4
MC
L
K_
I2
S
_0
LR
CK
_I2S
_
0
SD
IN
_
I2
S_
0
SC
LK
_I2S
_
0
SD
O
U
T_
I2
S
_0
LR
CK
_I2S
_
1
SD
IN
_
I2
S_
1
SC
LK
_I2S
_
1
SD
O
U
T_
I2
S
_1
LR
CK
_I2S
_
2
SD
IN
_
I2
S_
2
SC
LK
_I2S
_
2
SD
O
U
T_
I2
S
_2
PW
M_3
GP
IO
_0
GP
IO
_1
GP
IO
_2
AP
L
D_
CS
RX
B
CK
/DS
D
SC
K
RX
L
RC
K
/D
SD5
RX
I2
S1
/
D
SD
2
VO
L
U
M
E
_
MU
T
E
MV
O
L
_
M
U
T
E
VO
L
UM
E
_M
U
T
E
PL
D
AD
CMC
K
PL
D
AD
CD
AT
A
PL
D
AD
CLR
CK
PL
D
AD
CBC
K
AP
L
D_
DAT
A
AP
L
D_
DAT
A
AP
L
D_
CLK
AP
L
D_
CLK
D
A
C
PC
M
S
D
A
C
B
CK
D
A
C
MC
K
D
A
C
LR
C
K
D
A
C
PC
MF
D
A
C
PC
M
C
S
W
1
D
A
C
PC
M
S
B
D
Z
F1
D
A
3
.3
V
D
GN
D
D
SP
1O
UTS
D
SP
1O
UTC
S
W
1
D
SP
1O
UTB
C
K
PL
D
ER
R
D
SP
1O
UTF
D
SP
1O
UTF
H
D
SP
1O
UTF
W
D
SP
1O
UTS
B
D
SP
1O
UTL
RC
K
RX
I2
S3
/
D
SD
4
D
IRS
B
CK
D
IR
S
BC
K
MN
864788_
H
A
INT
MN
864788_
H
A
INT
D
IR
S
LR
C
K
D
IRS
LR
C
K
VO
L
UM
E
_M
U
T
E
PL
D
A
D
CL
RC
K
Z2
D
A
C
L
R
CK
Z2
D
A
C
D
A
T
A
PL
D
A
D
CB
C
K
PL
D
A
D
CD
A
T
A
Z2
D
A
C
B
C
K
Z2
D
A
C
M
U
T
E
Z2
D
A
C
M
C
K
Z2
D
AC
DAT
A
Z2
D
AC
LRC
K
Z2
D
AC
BCK
Z2
D
AC
MUT
E
Z2
D
AC
MCK
Z2
D
AC
MUT
E
Z2
D
AC
LRC
K
Z2
D
AC
DAT
A
Z2
D
AC
BCK
Z2
D
AC
MCK
PL
D
ER
R
D
IRA
U
X
D
AT
A
D
IRA
U
X
LR
CK
D
IRA
U
X
BC
K
D
IRA
U
X
MC
K
D
IRX
MCK
D
IRS
LR
C
K
D
IRS
B
CK
D
IRN
P
CM
D
IRP
ER
R
PL
D
AD
CBC
K
PL
D
AD
CMC
K
PL
D
AD
CLR
CK
PL
D
AD
CD
AT
A
D
ZF
1
D
S
P1
IN
S
_
S
L
D
S
P1
IN
B
C
K
D
S
P1
IN
R
S
V
_F
R
D
S
P1
IN
S
W
C
_
C
D
S
P1
IN
L
R
C
K
D
S
P1
IN
S
B
_
S
R
D
S
P1
IN
F
_
FL
D
S
P1
O
U
T
S
D
S
P1
O
U
T
F
D
S
P1
O
U
T
S
B
D
S
P1
O
U
T
C
S
W
1
D
S
P1
O
U
T
B
C
K
D
S
P1
O
U
T
L
R
CK
D
S
P1
IN
M
C
K
PL
D
E
RR
2
D
S
P1
IN
R
S
V
_S
W
D
S
P1
O
U
T
F
W
D
S
P1
O
U
T
F
H
D
S
P_
F
LA
G
3
D
A
3
.3
V
D
GN
D
D
SP
_F
LA
G
3
D
SP
1I
NR
SV
_
SW
D
SP
1I
NR
SV
_
FR
D
SP
1I
NS
B
_S
R
D
SP
1I
NS
_
SL
D
SP
1I
NS
W
C
_C
D
SP
1I
NF
_F
L
D
SP
1I
NB
C
K
D
SP
1O
UTF
D
SP
1O
UTB
C
K
D
SP
1O
UTL
RC
K
D
SP
1O
UTC
SW
1
D
SP
1O
UTS
D
SP
1O
UTS
B
D
SP
1
OU
T
FW
D
SP
1O
UTF
H
PL
D
E
RR
2
PL
D
E
RR
2
D
AC
M
CK
D
AC
B
CK
D
AC
L
RC
K
D
AC
P
CM
F
D
AC
P
CM
C
SW
1
D
AC
P
CM
S
D
ZF
1
D
AC
P
CM
S
B
D
AC
P
CM
S
B
TX
I2S0
RX
M
CK
/DS
D
M
CK
RX
I2
S0
/
D
SD
1
TX
LRC
K
TX
BCK
RX
I2
S1
/
D
SD
2
RX
I2
S2
/
D
SD
3
RX
L
RC
K
/D
SD5
RX
I2
S3
/
D
SD
4
RX
B
CK
/DS
D
SC
K
TX
I2S0
TX
LRC
K
TX
BCK
GP
IO
_2
GP
IO
_1
GP
IO
_0
PW
M_3
SD
O
U
T_
I2
S
_2
SC
LK
_I2S
_
2
SD
IN
_
I2
S_
2
LR
CK
_I2S
_
2
SC
LK
_I2S
_
1
SD
IN
_
I2
S_
1
LR
CK
_I2S
_
1
SD
IN
_
I2
S_
0
MV
O
L_
M
UT
E
MV
O
L_
M
UT
E
NE
T
3
.3
V
JT
AG
_
T
MS
JT
AG
_
T
D
I
TD
O
1_
TD
I2
JT
AG
_
T
CK
D
SP
1I
NL
RC
K
D
SP
1I
NM
C
K
SP
D
IF_
O
U
T
H
D
MIS
P
D
IF
D
IRM
C
K
D
IRB
C
K
D
IRL
RC
K
D
IRD
ATA
MP
IO
_
B0
MP
IO
_
B1
MP
IO
_
B2
MP
IO
_
B3
MP
I
O_
B
0
MP
I
O_
B
1
MP
I
O_
B
2
MP
I
O_
B
3
MP
IO
_
B0
MP
IO
_
B1
MP
IO
_
B3
MP
IO
_
B2
1B
TO B1
7B
TO B7
6C
TO C6
9C
TO C9
D3
TO 3D
D4
TO 4D
D5
TO 5D
D6
TO 6D
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
16
15
17
Table of Contents
AVR-X1500H
1
AVR-S740H
1
SAFETY PRECAUTIONS
3
NOTE FOR SCHEMATIC DIAGRAM
4
HANDLING THE SEMICONDUCTOR AND OPTICS
4
ONLINE PARTS LIST
5
Accessing the Parts List
5
Searching Part Numbers or Ref. Numbers
5
NOTE FOR PARTS LIST
5
SERIAL NUMBER
6
Serial Number Organization
6
SKU Code of this Unit
6
POST-SERVICE PRECAUTIONS
7
Initializing this Unit AVR-X1500H
7
JIG FOR SERVICING
7
Initializing this Unit AVR-S740H
7
JIG FOR SERVICING
7
SCHEMATIC DIAGRAMS
9
SCH01_HDMI_RX
9
SCH02_HDMI_TX
10
SCH03_OSD
11
SCH04_DIGITAL SUPPLY
12
SCH05_MCU
13
SCH06_MCU_LEVEL_CHG
14
SCH07_DIR
15
SCH08_PLD
16
SCH09_DSP
17
SCH10_MAIN DAC
18
SCH11_NETWORK
19
SCH12_ANALOG
20
SCH13_MAIN
21
SCH14_FRONT_HDMI
22
SCH15_DIFF-AMP
23
SCH16_PHONO & TUNER
24
SCH17_FRONT
25
SCH18_REGULATOR
26
SCH19_SMPS
27
PRINTED CIRCUIT BOARDS
28
DIGITAL, F HDMI, TUNER, PHONE
28
MAIN
29
DIFF-AMP, BIAS-TR, PHONE WIRE GUIDE, HDMI CABLE GUIDE, SMPS, REGULATOR
30
FRONT, PHONE, USB WIRE GUIDE, STANDBY, MIC, USB
31
LEVEL DIAGRAM
32
FRONT ch
32
CENTER, SURROUND ch
33
SURROUND BACK ch
34
SUBWOOFER ch
35
ZONE2 ch
36
BLOCK DIAGRAM
37
ANALOG AUDIO DIAGRAM
37
DIGITAL AUDIO DIAGRAM
38
VIDEO DIAGRAM
39
POWER DIAGRAM
40
WIRING DIAGRAM
41
SEMICONDUCTORS
42
1. IC's
42
2. FL DISPLAY
57
3. Remote Code Table
58
DISASSEMBLY
65
Flowchart
65
1. FRONT PANEL ASSY
66
2. DIGITAL PCB
67
3. RADIATOR ASSY
67
4. SMPS PCB
67
5. REGULATOR PCB
67
6. POWER TRANS
67
EXPLODED VIEW
68
PACKAGING VIEW
69
TROUBLE SHOOTING
71
1. POWER
71
2. Analog video
72
3. HDMI/DVI
73
4. AUDIO
75
5. Network / Bluetooth / USB
77
6. SMPS
80
HDMI "Rx/Tx" Failure Detection
81
1. Prior checking
81
2. Preparations for checking HDMI Switcher reception/transmission register
82
3. Starting detecting the point of failure
84
4. Device implementation location
111
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
112
SPECIAL MODE
113
Special mode setting button AVR-X1500H
113
Special mode setting button AVR-S740H
114
1. Version Display Mode
115
2. PANEL / REMOTE LOCK Selection Mode
118
3-1. Selecting the Mode for Service-related
119
3-2. Protection History Display Mode
120
3-3. Operation Info Mode
122
3-4. TUNER STEP mode (E2 / E3 only)
123
3-5. Remote ID Setup Mode
123
4. Protection Pass Mode
124
5. Network Initialization Mode
124
6. Clearing the Operation Info
125
7. Log Capture feature
125
DIAGNOSTIC MODE
126
Service Path Check Mode
126
DIAGNOSTIC PATH DIAGRAM
129
JIG FOR SERVICING
144
ADJUSTMENT
145
PROCEDURE AFTER REPLACING THE PCB.
147
PROCEDURE AFTER REPLACING THE U-COM, ETC.
147
FIRMWARE UPDATE PROCEDURE
148
1. Items necessary for update
148
2. Update preparation with a USB flash drive
149
3. Update method when the DIGITAL PCB or network module is replaced (Using a USB flash drive)
150
4. Update Method for Service Region Settings
151
5. Normal Firmware Update Method from USB Flash Drive
152
6. Normal Firmware Update Method from OTA
153
7. About the error codes
154
Other manuals for Denon AVR-S740H
Owner's Manual
272 pages
Quick Start Guide
12 pages
4
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Denon AVR-S740H Specifications
General
Brand
Denon
Model
AVR-S740H
Category
Stereo Receiver
Language
English
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