Sony XAV-7W Service Manual ▷ View online
XAV-7W
22
22
6-2.
BLOCK DIAGRAM – DISPLAY/BUS CONTROL Section –
9
LIQUID
CRYSTAL
DISPLAY
LCD901
60
105
59
63
70
69
97
98
101
38
34
50
46
115
64
63
62
61
60
2 – 25, 27 – 38, 40 – 48
1 – 45
S1 – S45
S1 – S45
COM1 – COM4
52 – 55
46 – 49
COM1 – COM4
LIQUID
CRYSTAL
DISPLAY
DRIVER
IC14
OSC
C122, R139
DI
CL
CE
INH
OSC
UNISO
ILL B+
UNISI
UNICKO
BUS ON
BU CHK
LINK-OFF
D755
(2/2)
47
116
57
106
MASTER CONTROLLER
IC703 (2/4)
LCD DI
LCDCKO
LCD CE
LCD INH
UNISO
UNISI
UNISCK
BUSON
BU IN
LINKOFF
LED SW1
LED SW2
BOOT
LED SW2
LED SW1
BOOT
HSYNC,
VSYNC
VSYNC
OSDCSO/TX
128
AV SEL
SA DATA
SA CLK
SA DATA
40
59
RGBVSEL
RGB SEL
96
107
SA ENIN
SA ENIN
1
1
COBOX
COBOX ST
116 VSYNC SEEP
117 HSYNC SEEP
119 VSYNC MON
120 HSYNC MON
6
2
13
1
12
3
10
6
9
RESET
SWITCH
BATTERY
SWITCH
BUS ON
SWITCH
4
11
12
5
6
4
11
RESET
DATA
CLK
BUS ON
+B
BACK-UP B+
BUS ON
SWITCH
Q753
BATTERY
DETECT
Q754
TH752
SONY BUS INTERFACE
IC751
D764
D759
D765
RST
BUS
ON
ON
BATT
DATA
CLK
8
RST
BUS ON
B/U-C
DATA IN
CLK-IN
DATA OUT
BUS ON
BU CHK
LINK-OFF
UNISO
UNICKO
UNISI
18
UNISO
17
UNISI
19
UNICKO
14
BUS ON
BU CHK
77
D755
(1/2)
D701
(1/2)
SYSRST
UNISO
UNISI
UNICLK
BUS-ON
BU IN
CN2 (4/7)
TO
CONNECTION
BOX
HUE
7
COL
3
V SYNC
16
H SYNC
CN2 (3/7)
TO
CONNECTION
BOX
G
(Page 24)
SYSRST
DISPLAY
CONTROLLER
IC900 (1/2)
18
19
25
26
SIN
CS
GOUT
ROUT
17
20
IOUT
BOUT
12 HSYNC
DOCKI
8
13 VSYNC
95 SA CLK
75 RGB HUE
64
OSDCCKO
24 SCLK
66
OSDCCE
5 RESET
54
OSDCRESET
14 DISP
122
OSDC DISP
23 TRE
48
OSDC TRE
ON SCREEN DISPLAY
CONTROLLER
IC2
P1, 2
(LCD BACK LIGHT)
PILOT RAMP
DRIVE
Q901
5
7
MULTIVIBRATOR
IC11
12
9
SA DATA,
SA CLK
SA CLK
B
(Page 21)
42 WIDE1
WIDE2
WIDE1
43 WIDE2
WIDE1,
WIDE2
WIDE2
F
(Page 23)
111 BRIGHT
BRIGHT
E
(Page 23)
NP SEL
D
(Page 23)
C
(Page 23)
14
NP SEL
77 NP SEL
73 RGB COL
VSYNC
HSYNC
D13
VOB1
16
J
AV SEL2
(Page 23)
H
AV SEL1
(Page 23)
K
B
(Page 23)
G
B
I
002
R
LEVEL SHIFT
IC6
5
1
3
13
6
2
4
12
SWITCHING
IC5
8
9
10
11
12
13
6
5
4
3
2
1
BUS BUFFER
IC7
15
17
13
11
5
3
7
9
8
6
4
2
19
12
14
16
18
1
SWITCHING
IC3
3
1
2
8
4
5
6
10
9
BUS BUFFER
IC1
1 25 24 48
GATE SWITCH
IC10
G
B
I
R
G
G
B
B
I
R
R
003
001
G
B
B
I
I
001
003
003
R
R
G
G
B
B
B
I
001
R
R
G
G
B
B
B
I
001
002
I
002
46
40
44
38
3
9
5
11
47
41
43
37
35
29
33
27
36
30
32
26
2
8
6
12
14
20
16
22
13
19
17
23
G
R
86
85
X901
18.432MHz
EXTAL
XTAL
XAV-7W
23
23
6-3.
BLOCK DIAGRAM – MONITOR Section –
: VIDEO
VSYNC
HSYNC
γ
2
RV213
RV212
BRIGHT
RV201
R SUB
BRIGHT
RV207
B SUB
BRIGHT
RV209
RGB
AMP
RV208
6
8
7
10
4
12
V COM
RV210
V COM AMP
IC203
V COM BIAS
Q207-210
V COM CENTER
RV211
MONITOR +5V
MONITOR –16V
D402
VSHL1
MONITOR +13V
VCS
VSHL2
VSHA1
VSHA2
VSS
VCC
R
G
B
COM
VCL
SPOI
HR
PS
CTR
SPIO
CLD
SPS
VR
MODE1
MODE2
LIQUID CRYSTAL
DISPLAY MODULE
SYNC
COMPARATOR
IC281
MULTIVIBRATOR
IC250
IC204
LEVEL SHIFT
Q420
LEVEL SHIFT
Q421
FRPT
FRPV
SYNI
VCS
HSY
VSY
28
SPOI
33
HR
35
PS
36
CTR
37
SPIO
47
CLD
58
SPS
59
VR
60
MOD1
32
MOD2
70
BLKI
71
BLKO
PDP 38
44
OSCI
CLS
57
CLS
PHASE
COMPARATOR
IC205
VCO
Q450
21
20 MDW
MDN
11 NTPC
M
8
5
17
19
OUT1
OUT2
MOTOR
DRIVE
FW
RW
20
VREF
MONITOR OPEN/CLOSE
MOTOR DRIVE
IC702
M701
MONITOR
OPEN/CLOSE
REGULATOR
D703, 706 – 708,
Q702
REGULATOR CONTROL
SWITCH
Q710 – 713
SYS+B
INVERTER
Q714 – 717
DECODER
IC710
102 103
MCNT1
MOPEN
MCLOSE
MCNT2
LODPLS
97 98
96
CLSW
101
LEVEL SHIFT
Q782
MONITOR OPEN/CLOSE
MOTOR ROTATION
DETECT
PH780
S790
MONITOR
CLOSE DETECT
ANGSW
99
S791
MONITOR ANGLE
DETECT
MDSW
100
S792
MONITOR
START STANDING
DETECT
MASTER CONTROLLER
IC703 (3/4)
SICRS
MNTOPN
24
SIRCS BUFFER
Q353
SIRCS BUFFER
IC4
SIRCS BUFFER
Q351
SIRCS MUTING
Q352
SIRCS MUTING
Q354
LEVEL SHIFT
Q756
REMOTE CONTROL
RECEIVER
IC750
REMOTE CONTROL
RECEIVER
IC450
When monitor
is opened
is opened
When monitor
is closed
is closed
113
SIRCS SELECT
Q350
26
27
29
31
30
28
42
41
40
36
INT/
EXT
SWITCH
GAMMA
AMP
INV
AMP
19
21
24
GAMMA2
GAMMA0
BRIGHT
SUBBRTR
SUBBRTB
RGBAMP
ROUT
GOUT
BOUT
38
COMOUT
37
COMAMP
32
33
35
34
39
COMFRP
FRP
SYNCOUT
SYNCIN
SW
SYNC
SEP
SYNC
SEP
SEP
BIN
GIN
RIN
BGP
GEN
GEN
BGP
VIDEO INTERFACE
IC201
IC280
LIQUID CRYSTAL
DISPLAY DRIVER
DISPLAY DRIVER
(FOR MONITOR)
IC401
• SIGNAL PATH
15
SIRCS
CN2 (6/7)
TO
CONNECTION
BOX
γ
0
H CENTER
RV401
FREE-RUN
FREQUENCY
RV402
21
20
8
10
CN2 (5/7)
VIDEO
B
G
R
FROM
CONNECTIOM
BOX
RGB R BUFFER
Q198
RGB G BUFFER
Q199
RGB B BUFFER
Q200
VIDEO BUFFER
Q1
6
8
9
5
11
14
3
16
1
2
12
7
RGB/OSD SELECT SWITCH
IC15
HSYNC,
VSYNC
VSYNC
C
(Page 22)
WIDE1,
WIDE2
WIDE2
F
(Page 22)
SW
L
(Page 24)
AV SEL2
J
(Page 22)
AV SEL1
H
(Page 22)
R, G, B
K
(Page 22)
NP SEL
D
(Page 22)
BRIGHT
E
(Page 22)
VSYNC
HSYNC
G
B
R
1
5
2
6
3
7
SWITCH
IC1
XAV-7W
24
24
6-4.
BLOCK DIAGRAM – POWER SUPPLY Section –
22
CN2 (7/7)
L
(Page 23)
MASTER
CONTROLLER
IC703 (4/4)
BATT
16
SYSB+
BU +5V
ILL ON 112
DDC-ON 57
+5V
REGULATOR
Q809, 810
SYSPW
F1, 101
+9V
(LED/SW9V)
F2
+9V
(M9V)
+5V
(M5V)
52
LCDPW
DIMMER
POWER CONTROL
(FOR MOINTOR SYSTEM)
IC900
CT
RT
VREF
–IN1
VCC1
OUT1
16 17
46
19
6
18
REFERENCE
VOLTAGE
OUTPUT
CIRCUIT
CIRCUIT
PWM
COMPARATOR
+IN1
+IN4
7
30
–IN4
DTC4
OUT4
39
31
33
OUTPUT
CIRCUIT
CIRCUIT
PWM
COMPARATOR
ERROR
AMP
+IN3
–IN3
CTL1
CTL2
CTL3
OUT3
40
25
26
20
21
22
OUTPUT
CIRCUIT
CIRCUIT
OSC
PWM
COMPARATOR
ERROR
AMP
ERROR
AMP
SWITCHING
REGULATOR
Q900
+5.1V
(MONITOR +5V)
POWER ON
RESET
Q963, 964
DIMMER
MUTING SWITCH
Q260, 264
ON SCREEN DISPLAY
CONTROL
Q262, 263
Q611
51
SW
G
(Page 22)
SYSRST
A
(Page 21)
RESET
L901
SWITCHING
REGULATOR
Q608
L602
OSC
Q609, 610
INVERTER
VOLTAGE
RV602
BACK LIGHT
UNIT
T601
INVERTER
TRANSFORMER
SWITCHING
REGULATOR
Q501
L510
T501
DC/DC
CONVERTER
D502
D503
D505
D506
7.5V
RV501
–16V (MONITOR –16V)
–5V (MONITOR –5V)
+7.5V (MONITOR +7.5V)
+13V (MONITOR +13V)
Q611, 612
DIMMER CONTROL
Q612
RV503
5V
RV900
DC/DC FREQUENCY
DISPLAY CONTROLLER
IC900 (2/2)
SYSTEM B+
SWITCH
Q1, 2
REGULATOR
CONTROL SWITCH
Q811
LSW965 – 967
SWITCHING
REGULATOR
Q861, 862-2
SWITCHING
REGULATOR
Q860, 862-1
F201
AUDIO
+10V
D +5V
65
37
OUTPUT
CIRCUIT
CIRCUIT
PWM
COMPARATOR
PWM
COMPARATOR
OUTPUT
CIRCUIT
CIRCUIT
ERROR
AMP
ERROR
AMP
OSC
14
3
2
10
7
9
F901
OSC
SWITCH
Q802
POWER CONTROL
IC860
PWM
SHIFT
NINV
IN2
IN2
NINV
IN1
IN1
RT
OUT2
VCC
OUT1
D800
SYSTEM B+
SWITCH
Q3, 4
AUDIO +8V
+8V
REGULATOR
IC304
+3.3V B+
+3.3V
REGULATOR
IC12
+5V
REGULATOR
Q13
TU +8.5V
TU +5V
+9V
REGULATOR
IC355
+5V
REGULATOR
Q720
D110 – 112,
SW106, 108
SW106, 108
+9V
REGULATOR
IC356
D910
D912
BACK-UP B+
TH901
TH900
AMP REM
ANT REM
6
5
ANTENNA REMOTE
B+ SWITCH
Q900-1, 901-1
AMP REMOTE
B+ SWITCH
Q900-2, 902-2
CN901 (2/2)
+8.5V
REGULATOR
IC13
B+ SWITCH
Q908
ILL B+
D106, 107,
SW101 – 105, 107
LED DRIVE
Q101, 102
KEY ILL 60
+9V
REGULATOR
IC701
114
TUNER-ON
83
P-ON
90
86
85
SW960
(RESET)
RESET SIGNAL
GENERATOR
IC704
RSTX
HSTX
RAM-BU
RESET SIGNAL GENERATOR
(FOR INTERNAL RAM)
IC705
81
BUFFER
IC901
D701
(2/2)
SYSRST
CONNECTION
BOX
XAV-7W
25
25
6-5.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
– MAIN/FRONT Boards –
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions or color bar signal
input conditions.
no mark : FM (Monitor is opened)
input conditions.
no mark : FM (Monitor is opened)
〈〈
〉〉
: AM (Monitor is opened)
(
) : Color Bar Signal Input (Monitor is opened)
[
] : FM (Monitor is closed)
∗
: Impossible to measure
– Other Boards –
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under color bar signal input conditions.
no mark : Color Bar Signal Input (Monitor is opened)
no mark : Color Bar Signal Input (Monitor is opened)
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: AUDIO
L
: VIDEO
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
• Circuit Boards Location
main board
key board
FM board
monitor board
switch board
pulse board
angle board
motor board
front board
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