Denon AVR-S740H Service Manual

SCH10_MAIN DAC
ANALOG AUDIO DIGITAL AUDIO TMDS SIGNAL ANALOG VIDEO GND LINE POWER- LINE POWER+ LINE DIGITAL VIDEO STBY POWERHDMI
FR
FL
SW
SB R
SB L
C
(G RM 21)
(G RM 21)
(G RM 21) ( GRM21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21)
(G RM 21) ( GRM21)
(G RM 21)
(G RM 21)
PD N
VDD1 8
DV SS
TV DD
LD OE
AO UTR4 P
AO UTR4 N
VR EFL 4
VR EFH 4
AO UTL4 N
AO UTL4 P
AO UTR3 P
AO UTR3 N
VR EFL 3 VR EFH 3
AO UTL3 N
AO UTL3 P
AV DD
AV SS
AO UTR2 P
AO UTR2 N
VR EFH 2
VR EFL 2 AO UTL2 N
AO UTL2 P
AO UTR1 P
AO UTR1 N
VR EFH 1
VR EFL 1
AO UTL1 N
AO UTL1 P
I2C
PS
CA D0_I2C
CL/CCL K/ TDM 1
SD A/CD TI/ TD M0
CA D1
DZ F/SM UT E
DS DR4
DS DL4
DS DR3
SD TI4/ DSD L3/T DMO 2
SD TI3/ DSD R2/T DMO 1
SD TI2/ DSD L2
SD TI1/ DSD R1
LRC K/D SDL 1
BIC K/D CLK
MC LK
(G RM 21)
(G RM 21)
(G RM 21) ( GRM21)
(G RM 21)
(G RM 21)
SR
SL
FROM AUD IO PART
MAIN DAC PART
FROM PLD PART
FROM MCU PART
R7911
3k 9/F-T
R7918 180
R7915
180
R7914
4k 7/F-T
R7917 4k 7/F-T
C7912
680pF
R7919
100
R7929
100
C7911
3900pF
R7913
33k
R7939
100
R7949
100
C7941
3900pF
R7979
100
R7989
100
C7924
OP EN
C7984
OP EN
C7914
OP EN
C7974
OP EN
C7985
0. 1u F
C7986
0. 1u F
C7987
1000pF
C7988
1000pF
C7989
OP EN
C7990
OP EN
C7991
1000pF
C7992
1000pF
C7993
1000pF
C7994
0. 1u F
C7995
0. 1u F
C7996
0. 1u F
C7997
1000pF
C7998
1000pF
C7999
1000pF
R7935
180
R7934
4k 7/F-T
R7933
33k
R7938 180
R7937
4k 7/F-
T
R7936 33k
R7912
3k 9/F-T
R7921
3k 9/F-T
R7922
3k 9/F-T
R7923
33k
R7916 33k
R7926 33k
R7924
4k 7/F-T
R7927
4k 7/F-T
R7925
180
R7928 180
C7921
3900pF
C7922
680pF
C7913
680pF
C7923
680pF
R7931
3k 9/F-T
R7932
3k 9/F-T
R7943
47k
R7944
10k/ F-T
R7945
150
R7948 150
R7947 10k /F -T
R7946 47k
R7941
3k 9/F-T
R7942
3k 9/F-T
R7971
3k 9/F-T
R7972
3k 9/F-T
R7981
3k 9/F-T
R7982
3k 9/F-T
C7931
3900pF
C7942
470pF
C7932
680pF
C7943
470pF
C7933
680pF
C7971
3900pF
C7981
3900pF
R7978 180
R7977 4k 7/F-T
R7976 33k
R7986 33k
R7987
4k 7/F-T
R7988 180
R7974
4k 7/F-T
C7972
680pF
R7973
33k
R7984
4k 7/F-T
C7982
680pF
R7983
33k
R7975
180
R7985
180
C7973
680pF
C7983
680pF
1 2 3 4 5 6 7 8 9 10 11 1 2
13
14
15
16
17
18
19
20
21
22
23
24
252627282 93 03 1323 33 43 53 6
37
38
39
40
41
42
43
44
45
46
47
48
IC791
AK 4458V N
C7929 0.1 u F
C7936 100V/ 1 uF
C7927
0. 1u F
C7925
0.1 uF
C7919
0.1 uF
C7917
0.1 uF
C7915
0.1 uF
R7901
33
R7902
1k
C7935
0. 1u F
1234
5 6 7 8
A
+
-
B
+
-
A OU TPU T
A-INP UT
A+IN PUT
V-
B+IN PUT
B-INP UT
B OU TPU T
V+
IC792
NJM8080G
1234
5 6 7 8
A
+
-
B
+
-
A OU TPU T
A-INP UT
A+IN PUT
V-
B+IN PUT
B-INP UT
B OU TPU T
V+
IC793
NJM8080G
C7944
OP EN
C7934
OP EN
1234
5 6 7 8
A
+
-
B
+
-
A OU TPU T
A-INP UT
A+IN PUT
V-
B+IN PUT
B-INP UT
B OU TPU T
V+
IC795
NJM8080G
R7959
100
R7969
100
C7964
OP EN
C7954
OP EN
R7951
3k 9/F-
T
R7952
3k 9/F-T
R7961
3k 9/F-T
R7962
3k 9/F-T
C7951
3900pF
C7961
3900pF
R7958 180
R7957 4k 7/F-T
R7956 33k
R7966 33k
R7967
4k 7/F-T
R7968 180
R7954
4k 7/F-T
C7952
680pF
R7953
33k
R7964
4k 7/F-T
C7962
680pF
R7963
33k
R7955
180
R7965
180
C7953
680pF
C7963
680pF
1234
5 6 7 8
A
+
-
B
+
-
A OU TPU T
A-INP UT
A+IN PUT
V-
B+IN PUT
B-INP UT
B OU TPU T
V+
IC794
NJM8080G
D AD ATA F1
D A256F S1
D AF S1
D A64F S1
D A_ Z_ MUT E1
D A_ D A 1
D A_ C K1
D A_ M S1
C7901
220/25V
C7902
220/25V
C7916
220/16V
C7930 470/16V
C7918
220/16V
C7920
220/16V
C7926
220/16V
C7928
220/16V
-12V
+ 12V
D A+ 5 V
AGND
D ACSR
D ACSL
D ACSW
D ACC
D ACFR
D ACFL
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
D AC
SB L
D ACSB R
D GND
D A3.3 V
D ACMC K D ACPC M S B D ACPC M S
D ACPC M C SW 1
D ACPC M F D ACBCK
D ACLR C K D ZF1
D AC_M S
D AC_D AT A
D AC_C L K
D AC_R S T
CH2:DACBCK
(DA64FS1)
CH4:DACMCK
(DA256FS1)
CH3:DACPCMF
(DADATAF1)
CH1:DACLRCK
(DAFS1)
(3) DAC input
5C
TO C5
4D
TO D4
D8
TO 8D
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
18

Denon AVR-S740H Specifications

General

Channels	7.2
Power Output per Channel	75 W (8 Ohms, 20 Hz - 20 kHz, 0.08% THD)
HDMI Inputs	6
HDMI Outputs	1
Dolby Atmos	Yes
DTS:X	Yes
Bluetooth	Yes
Wi-Fi	Yes
HEOS Multi-room	Yes
4K Ultra HD Pass-through	Yes
Power Output per Channel (6 Ohms)	110 W (6 Ohms, 1 kHz, 0.7% THD)
4K/Ultra HD Upscaling	Yes
Phono Input	Yes
Dolby Support	Dolby Atmos, Dolby TrueHD, Dolby Surround
Auto Calibration	Audyssey MultEQ
Input Sensitivity/Impedance	200 mV / 47 kOhms
Signal-to-Noise Ratio	98 dB (IHF-A weighted, Direct mode)
Ethernet	Yes
USB Port	Yes (front)
AM/FM Tuner	Yes
Supported Audio Formats	MP3, WMA, AAC, FLAC, ALAC, WAV, DSD
HDR Support	HDR10, HLG, Dolby Vision
Wireless Audio	AirPlay 2
DTS Support	DTS:X, DTS-HD Master Audio
Zone Audio	Zone 2
Frequency Response	10 Hz - 100 kHz (+1, -3 dB, Direct Mode)
Total Harmonic Distortion	0.08% (20 Hz - 20 kHz)
Built-in DAC	192 kHz / 24-bit