Sony XAV-7W Service Manual ▷ View online
XAV-7W
46
46
TP780
TP781
TP782
Q782
TP783
R782
R793
R780
D780
CN780
C792
C791
CN790
C790
S792
S790
S791
PH780
2SC4081
10k
390
2.2k
MA8024
3P
0.1
0.1
4P
0.1
GP1S23
8V
GND
GND
ANGLE
CLSW
MDSW
LODPLS
MONITOR START
STANDING DETECT
MONITOR CLOSE
DETECT
DETECT
MONITOR AMGLE
LEVEL
SHIFT
MONITOR OPEN/CLOSE
MOTOR ROTATION DETECT
6-25. SCHEMATIC DIAGRAM – PULSE/SWITCH Boards –
6-24. PRINTED WIRING BOARDS – PULSE/SWITCH Boards –
•
See page 25 for Circuit Boards Location.
PULSE BOARD
(COMPONENT SIDE)
3
1
F
MOTOR
BOARD
CN710
PULSE BOARD
(CONDUCTOR SIDE)
SWITCH BOARD
(COMPONENT SIDE)
SWITCH BOARD
(CONDUCTOR SIDE)
S791
MONITOR ANGLE
DETECT
S792
MONITOR START
STANDING DETECT
S790
G
MOTOR BOARD
CN710
S790
MONITOR CLOSE
DETECT
1-676-686-
1-676-686-
1-676-685-
1-676-685-
31, 32
(31), (32)
31, 32
(31), (32)
31, 32
(31), (32)
31, 32
(31), (32)
(Page 44)
(Page 44)
(Page 45)
(Page 45)
Ver 1.1
47
XAV-7W
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
2A1
1Y4
2A2
1Y3
2A3
1Y2
2A4
1Y1
2G
Vcc
1
OE1
4
GND
2
O0
3
O1
5
O2
6
O3
48
OE2
45
GND
7
VCC
42
VCC
10
GND
39
GND
15
GND
34
GND
18
VCC
31
VCC
21
GND
28
GND
24
OE4
25
OE3
47
D0
8
O4
41
D4
9
O5
40
D5
13
O8
36
D8
14
O9
35
D9
16
O10
33
D10
17
O11
32
D11
11
O6
38
D6
12
O7
37
D7
46
D1
44
D2
19
O12
30
D12
20
O13
29
D13
22
O14
27
D14
23
O15
26
D15
43
D3
IC7
TC74VHCT244AFT (EL)
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC1
MC74LCX16244DTR2
IC11
TC74HC4538AFT
1 2
3
4
5
6
7
8
T1
Q
Q
Q
T2
R
A
B
16 15 14
13
12
11
10 9
T1
Q
Q
T2
R
A
B
VDD
T12
T22
A2
B2
Q2
Q2
RESET2
RESET1
T11
T21
A1
B1
Q1
Q1
VSS
48
XAV-7W
SOFT STEP FADER
SOFT STEP FADER
SOFT STEP FADER
SOFT STEP FADER
MAIN SOURCE
SELECTOR
MIXING
SELECTOR
INPUT
MULTIPLEXER
TAPER
PDR+
PD–
PDL+
PAUSE
PHONE
TIM
NAVI
AM IF
CMPX
1
2
3
4
5
6
7
8
9
10
11
TAPE
PD
PHONE
TIM
NAVI
TAPEL
MDR
MDL
CDR
CDL 40
41
42
43
44
PAUSE
BEEP
IN-GAIN
+AUTO ZERO
SOFT STEP
VOLUME
7 BAND
EQUALIZER
SOFT MUTE
LOUDNESS
+
+
SWACOUT 37
HPF
ACOUTL 38
ACOUTR 36
OUTPUT
SELECTOR
SWIN 34
ACINR 35
REAR
AC IN
SW
MAIN
MIXER
FRONT
ACINL
MIXINLF
MIXINLR
MIXINRR
MIXINRF
OUTLF
OUTLR
OUTRF
OUTRR
25
26
27
28
29
30
31
32
33
SUB
WOOFER
FILTER
SOFT STEP FADER
OUTSW
24
MONO FADER
DIGITAL CONTROL
IIC BUS
SPECTRUM
ANALYZER
22
23
VDD
DEMODULATOR
+STEREO ADJUST
+STEREO BLEND
25kHz
LPF
HIGH-CUT
S & H
PILOT
CANCELLATION
PLL
PILOT
DET
80kHz
LPF
FM/AM
NOISE BLANKER
STD
IN GAIN
AM/MPX2
MULTIPATH
DETECTOR
D/A
CONVERTER
QUAL
PULSE
FORMER
SAOUT
SACLK
21
SCL
20
SDA
GND
ATT
19
18
17
QUAL
16
MPOUT
MPIN
LEVEL
13
14
15
MPX1
12
CREF 39
MD
CD
FM
AM
IC302
TDA7406
49
XAV-7W
A
B
GND
VCC
RX/CX
CX
Q
CX
Q
5
6
1
2
3
4
7
8
CLR
CLR
Cx
Rx/Cx
Q
REFERENCE
VOLTAGE
LATCH
TRIANGLE
OSCILLATOR
VERF.
+2.5V
+2.5V
+2.5V
+
–
U.V.L.O
–
+
+
+
–
–
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
PWM
COMPA-
RATOR2
RATOR2
OUTPUT2
OUTPUT1
GND
PWM
COMPA-
RATOR1
RATOR1
VERF
S
R
R
VERF
VERF
ERROR
AMP2
ERROR
AMP1
VREF/2
SHORT
CIRCUIT
PROTECTION
COMPARATOR
VCC
+
REF
OUT
S.C.P
NON-INV-
INPUT2
INV-
INPUT2
FEED
BACK2
DEAD
TIME
CONTROL2
OUT2
VCC
GND
OUT1
RT
NON-INV-
INPUT1
INV-
INPUT1
FEED
BACK1
DEAD
TIME
CONTROL1
CT
IC751
BA8270F-E2
IC860
TL1415ACDB
IC900
MB3785APFV-G-BND-ER
– MONITOR Board –
IC250
TC7WH123FU (TE12R)
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
CB 4
VE 4
OUT 3
VE 3
VE 2
OUT 2
OUT 1
VE 1
GND
V
CC
2
OUT 4
CB 1
40
42
43
44
48
3
37
38
39
41
RE
D
RE
C
45
46
47
RE
B
RE
A
36 35 34 33 32
31 30
29
28 27
26 25
CA 4
CB 3
CA 3
DTC 4
FB 4
–IN 4 (E)
+IN 4 (E)
–IN 3 (E)
+IN 3 (E)
DTC 3
FB 3
–IN 4 (C)
D
C
24
23
4
5
2
1
SAW
OSC
CT
RT
RT
XTAL
XTAL
–IN 2 (C)
V
CC
1
VOLTAGE
REFERENCE
+2.5V
22
21
20
–IN 3 (C)
SCP
CTL 3
CTL 2
CTL 1
VREF
CT
RT
OSCO
RT
OSCO
OSCI
19
18
17
16
15
14
13
B
A
6
7
8
9 10
11 12
–IN 1 (C)
CA 2
DTC 1
FB 1
DTC 2
FB 2
–IN 2 (E)
+IN 2 (E)
–IN 1 (E)
+IN 1 (E)
CB 2
CA 1
A
B
C
D
Click on the first or last page to see other XAV-7W service manuals if exist.