Sony XAV-742 Service Manual ▷ View online
XAV-742
41
IC302 NJW1240V (TE2)
IN1 1
OUT1
32
+
MUTING
POP NOISE
SUPPRESSION
IN2 2
OUT2
31
+
MUTING
IN3 3
OUT3
30
+
MUTING
IN4 4
OUT4
29
+
MUTING
IN5 5
OUT5
28
+
MUTING
IN6 6
OUT6
27
+
MUTING
BIAS
MUTE 7
GAIN SELECT
6 dB/8 dB
NAGATIVE
VOLTAGE
REGULATOR
GAIN 8
V-OUT 10
REGCNT 11
CLK 14
V+REG 15
NC 16
NC 12
NC 13
NC 13
V-IN 9
FB
18
CP
19
NC
17
NC
21
GND
22
CN
23
MUTE_TC
24
V+A
25
GND
26
NC
20
XAV-742
42
IC401, 431 OZ529IEGN-A1-0-TR
BST 1
LX 2
FLT_USB
9
VIN 3
EN_SYS 4
USBOUT 5
ISET_USB
10
RT
15
VREF
16
FB_USB 6
USBIN
2V
UVLS
7
SYNC 8
GNDA
14
VIC_USB
11
SS_SYS
13
EN_USB
12
HDR
+
OSCILLATOR
REFERENCE
GENERATOR
OVER CURRENT
PROTECTION
VS
SEL
Q
S
R
R
ADJUSTMENT
GENERATOR
CHARGE
PUMP
OVER-CURRENT
LIMIT
USB FAULT
PROTECITON
VOUT_SYS (USBIN)
FAULT PROTECTION
+
–
+
–
+
–
+
–
–
XAV-742
43
IC503 MM1836A33NRE
IC702 NJM2534M (TE2)
VOUT
4
CONT 1
GND 2
NC 3
VIN
5
+
–
VOLTAGE
REFERENCE
REGULATOR
CURRENT
LIMIT
THERMAL
SHUTDOWN
BIAS
VOUT
VCC
VIN3 (MUTE)
1
2
3
4
5
6
7
GND
BUFFER
VIN1
VIN2
SW1
SW2
8
BIAS
IC461 SI-8205NHG-TL
SW
REG
CBCHG
INIT_OVP
8
ENABLE/
SOFT-START
REGULATOR
REGULATOR
UNDER
VOLTAGE
LOCK OUT
VIN
UNDER
VOLTAGE
LOCK OUT
REG_BIAS
REGOK
STANDBY
ISNS
POWER
STAGE
CONTROL
LOGIC
CURRENT
SENSE
BS_CHG
GATE
LOGIC
PHASE
LOGIC
OVER
VOLATAGE
PROTECT
COMPARATOR
SS_REF
EN/SS 2
SYNC 4
BS
7
OVP
OVT
BG
INIT_PH
INIT_CC
HSON
OVC
LSON
VINOK
PH_OPEN
PHASE
RES_PH
LSOFF
REGOK
VINOK
FORC_OFF
IRAMP
SET_PH
INIT_COMP
ERROR
AMP
OSC_RAMP
CURRENT
COMPARATOR
FB
6
COMP
5
ICSOCP
ICSPWM
VIN 3
GND 1
REG
REG
REG
REG_DRV
BG
REG
REG
REG
REG
VINOK
VINOK
REG
REG
REG_DRV
REF
BG
BG
REFERENCE
VOLTAGE
REG
REG
VINOK
FB
REG
VINOK
REGOK
THERMAL
SHUTDOWN
OVER
CURRENT
PROTECT
COMPARATOR
DRIVE
REGULATOR
XAV-742
44
IC703 NJM41050V (TE2)
1
VIN1
2
SW1
CLAMP
3
VIN2
4
SW2
5
VIN3
6
MUTE
7
NC
CLAMP
CLAMP
8 VOUT
9 GND
10 VCC
11 SREFV
12 VSAG
13
14
SREFV
NC
75
:
DRIVER
6dB
6.75MHz
LOW-PASS
FILTER
ADVANCED
SAG
CORRECTION
+
–
–
IC801 TDF8556AJ/N5
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOAD DUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL–
OUT-FL+
OUT-RL–
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR–
OUT-FR+
OUT-FR–
DIAG
ANT-REM
AMP-REM
SERVO+3.3V
MECHA+6V
VP
BU+B
I2C_SIO
I2C_SCK
VP2
P-GND1
SVR
IN-FL
IN-FR
BEEP
P-GND3
VP1
STB
P-GND4
RST
CRES
AUDIO+B
(8.5V)
(8.5V)
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS
– EXT-NAVI Board –
IC601 BA3123F-E2
AMP
8
4
3
2
1
OUT1
VM1
IN1
GND
VCC
OUT2
VM2
IN2
AMP
7
6
5
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