Sony XAV-A1 Service Manual ▷ View online
61
XAV-A1
ej
IC1008
eg
(BOUT)
(Color bar)
2 V/DIV, 20
µ
s/DIV
H
4.2 Vp-p
ek
IC1010
q;
100 mV/DIV, 1
µ
s/DIV
2
µ
s
370 mVp-p
el
IC1009
qa
(NDRV_D)
2 V/DIV, 10
µ
s/DIV
18.2
µ
s
5.7 Vp-p
r;
IC1009
w;
(NDRV_B)
2 V/DIV, 10
µ
s/DIV
18.2
µ
s
5.4 Vp-p
ra
IC1014
2
(SW)
5 V/DIV, 5
µ
s/DIV
9.4
µ
s
16.8 Vp-p
ta
IC1
r;
(X2)
2 V/DIV, 100 ns/DIV
166 ns
4.7 Vp-p
ts
IC3
qd
(OSC1)
2 V/DIV, 100 ns/DIV
100 ns
5.1 Vp-p
– XA-123 Board –
62
XAV-A1
IC1101
BA5918FP-Y
•
IC Block Diagrams
– SERVO Board –
25
24
23
22
21 20 19 18
17
16
VCC
VCC
VCC
–
+
1
2
3
5
6 7
8
9
10
11
4
VIN4
VIN3'
VIN3
OP OUT
OP IN(–)
OP IN(+)
GND
VCC
VO3–
VO3+
VCC
BIAS-IN
VIN1
VIN2'
VIN2
GND
GND
STBY
VCC
VO2–
VO2+
12
13
VO1–
VO1+
–
+
–
+
+
+
–
–
–
+
+
+
–
–
LEVEL
SHIFT
STBY
15
14
–
+
VO4–
VO4+
–
+
LEVEL
SHIFT
–
+
–
+
–
+
–
+
LEVEL
SHIFT
LEVEL
SHIFT
–
+
+
8 7
6
5
1
2
3
4
THERMAL
SHUTDOWN
POWER
SAVE
CONTROL
LOGIC
DRIVER
GND
OUT2
VREF
RIN
OUT1
VM
VCC
FIN
SCK
1 2 3
7 8
4
5
6
AUDIO
SERIAL
PORT
10
9
BCK
DATA
LRCK
VOUTL
VOUTR
DGND
VDD
VCC
VCOM
AGND
SERIAL
CONTROL
PORT
SYSTEM
CLOCK
MANAGER
4x/8x OVER
SAMPLING
DIGITAL FILTER
WITH
FUNCTION
CONTROLLER
ENHANCED
MULTI-LEVEL
DELTA-SIGMA
MODULATOR
D/A
CONVERTER
D/A
CONVERTER
OUTPUT AMP AND
LOW-PASS FILTER
LOW-PASS FILTER
OUTPUT AMP AND
LOW-PASS FILTER
LOW-PASS FILTER
ZERO DETECT
POWER SUPPLY
12
11
ZEROL/NA
ZEROR/ZEROA
15
14
ML
MC
16
13
MDI
SYSTEM
CLOCK
IC1103
BA6289F-E2
IC1207
PCM1742KE
63
XAV-A1
IC1301
BA6849FS
+
–
–
+
–
–
+
–
–
+
–
–
1
2
3
4
5
6
7
8
9
10
A3
A2
A1
NC
GND
H1+
H1–
H2+
H2–
13
15
18
19
20
22
23
VH
CNF
14 NC
ECR
EC
PS
VCC
VM
DRIVER
D R Q
Q
CK
CURRENT
SENSE
AMP
THERMAL
SHUT
DOWN
TL
POWER SAVE
TORQUE
SENSE AMP
VCC
HALL
AMP
HALL
AMP
+
–
–
HALL
AMP
GAIN
CONTROL
HALL BIAS
16 SB
17 FR
SHORT BRAKE
+
–
–
11
12
H3+
H3–
HALL
AMP
+
–
–
HALL
AMP
VCC
21 FG
24 RNF
VREF
REG OUT
OVER-VOLTAGE
PROTECTOR
THERMAL
SHUT DOWN
OVER-CURRENT
PROTECTOR
VCC
2
GND
3
OUT
4
NC
5
DRIVER
REGULATOR
CTL
1
+
–
–
1
2
2
3
4
5
6
7
8
9
10
VCC
IN2
S-GND
IN1
NC
NC
OUT2
NC
P-GND
OUT1
CONTROL
CIRCUIT
MOTOR
DRIVE
CIRCUIT
BUFFER
BUFFER
IC2, 3
LB1930M-TLM-E
IC1
BA07CC0WFP-E2
– SLIDER Board –
64
XAV-A1
2
1
16
6dB
75
Ω
15
14
3
4
6dB
75
Ω
13
12
7
6dB
75
Ω
10
9
8
11
5
6
INA
MUTE
GND
INB
INC
GND
GND
NC
VCC
OUTA1
OUTA2
OUTB1
OUTB2
OUTC1
OUTC2
NC
LOGIC
3
4
5
CTLA
CTLB
1
2
IN1
GND
7
GND
CTLC
6
IN2
8
IN3
9 GND
10 IN4
11 VCC
12 IN5
13 GND
14 VOUT
4
1
SAG
2
OUT
3
VCC
IN
5 GND
6 PS
BIAS
CLAMP
DRIVER
2
1
3
4
7
8
6
5
LOGIC
GND
OUT
VCC
IN3
IN1
CTL A
IN2
CTL B
IC4
BD5241G
– MAIN Board –
5
CT
4
N. C.
2
VCC
1
VOUT
3
GND
VOLTAGE
DETECT
1
VIN
2
SW
3
RT
4
GND
6
INV
7
EN/SYNC
5
FB
DRIVER
CURRENT LIMIT
ERROR
AMP
SOFT
START
PWM
COMPARATOR
THERMAL
SHUT DOWN
LATCH
OSC
SYNC
VREF
IC21, 22
BD9781HFP
IC302
BA7666FS-E2
IC303
BA7649AF
IC304 – 306
MM1510
IC307, 310
BA7652AF-E2
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