Read Sony HMD-A400 Service Manual online
1
A
B
C
D
E
F
G
H
I
2
12
13
11
10
9
8
7
6
5
4
3
14
5-15
5-16
(3) Schematic Diagrams of D (
a
a
a
a
a
,
b
b
b
b
b
,
c
c
c
c
c
,
d
d
d
d
d
,
e
e
e
e
e
,
f
f
f
f
f
) Board
•
Divided circuit diagram
One sheet of D board circuit diagram is divided into six
sheets, each having the code D-
a
to D-
f
. For example, the
destination ab1 on the D-
a
sheet is connected to ab1 on the
D-
b
sheet.
b
1
a
Ref. No.
Circuit diagram division code
3.2 Vp-p (H)
1
3.4 Vp-p (H)
2
4.0 Vp-p (V)
3
5.0 Vp-p (H)
4
2.8 Vp-p (24MHz)
5
5.0 Vp-p (H)
6
5.0 Vp-p (V)
7
3.0 Vp-p (V)
8
2.0 Vp-p (V)
9
12.0 Vp-p (H)
0
• D -
a
BOARD WAVEFORMS
0.3
0.3
-2.0
-2.0
-1.4
0.7
0.7
-14.3
0.1
15.2
0.8
0.4
0
2.9
2.9
5.7
5.3
2.5
1.5
2.5
6.1
0.2
6.3
5.4
2.4
1.0
2.6
4.5
2.7
3.1
3.2
4.9
5.0
0.2
4.9
5.0
4.9
6
7
8
9
10
0.1
2.8
5.0
5.0
2.0
0
4.9
4.9
0.1
3.1
2.2
2.3
0.1
4.9
5.0
0.7-4.0
4.1
5.0
1.7
0.2
-0.6
4.6
0.7
4.9
0.8
0.5
0.5
5
1
2
3
4
1.2
2.5
4.9
0.5
4.2
0.4
0
0.2
4.6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
28
27
26
25
24
23
22
29
30
31
32
33
34
35
36
37
38
39
40
41
42
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
+
-
CN901
R933
R932
C503
C505
R503
R501
R506
C508
D501
R571
R500
R513
R522
R510
R511
R934
R407
C406
C405
R404
R406
C408
D402
C402
C404
R403
R402
C409
R401
CN505
2P
C512
C513
R508
C509
R505
R502
C510
IC501
IC902
R411
R412
IC901
IC401
C403
R504
IC504(1/2)
10P
22
22
100V
C502
0.1
0.1
100V
100V
C504
0.01
0.1
4.7k
27k
10k
100p
50V
1SS119
4.7k
43
100
R592
47k
4.7k
100
100
47
330
1W
3300p
100V
0.22
50V
0.75
2W
1.5
470
35V
35V
1N4002
470
25V
25V
100V
100V
1000
25V
1
1/2W
2.1k
1%
1000p
2.15k
220p
50V
220p
50V
13k
3300p
C531
100V
0.022
100V
2.8k
1%
22.1k 1%
1000
16V
C534
0.1
50V
50V
TDA4841
DEFLECTION
CONTROL
24LC16
EEPROM
6.8k
1%
6.8k
1%
ST72754
CPU
TDA8172
V OUT
0.022
100V
C506
0.01
0.01
100V
C507
4700p
732
1%
LM358
AMP
-12V
-12V
2
3
1
8
4
1
2
3
4
5
6
7
PC0/
HSYNCDIV
PC1/VA
PC2/PWM2
PC3/PWM3
PC4/PWM4
PS5/PWM5
PS6/PWM6
PC7/PWM7
PB7/AIN3/
PWM1
PB6/AIN2/
PWM0
PB5/AIN1
PB4/AIN0
VDD
USBVCC
USBDM
USBDP
VSS
HSYNCI
VSYNCI
PD0/
VSYNCO
PD1/
HSYNCO
PA0/OCMP
TEST/Vpp
Reset
PA1/RDI
PA2/TDO
PA3
PA4
PA5
PA6
OSCIN
OSCOUT
PA7/
BLANKOUT
PB3/SDAI
PB2/SCU
PB1/SDAD
PB0/SCLD
PD6/CLAMPOUT
PD5/HFBACK
PD4/ITB
PD3/ITA/
VFBACK
PD2/
CSYNCI
SCL/I
SDA/I
CLAMP
GND
G1
V_RTN
H_RTN
GND
SOG
Auto-Size(NC)
Vcc
TEST
SCL
SDA
Vss
HPLL2
HSMOD
FOCUS
BOP
XRAY
HFLB
VCAP
GNDS
HPLL1
HBUF
DGND
HDRV
PGND
HREF
BIN
BSENS
COR
VSOMD
VAGC
VOUT1
VOUT2
EWDRV
VREF
VCC
HUNLOCK
SCL
CLBL
HSYNC
SDA
VSYNC
A0
A1
A2
Q541
Q542
R5120
46.4k
C580
0.1
100V
R5124
100
R5121
10K
C570
10
50V
R5122
47k
C571
0.1
50V
50V
R5123
10k
HCAP
BDRV
ab2
D
-a
+5V
+5V
+5V
+5V
+5V
+12V
+15V
+12V
(µ-COM,DEFLECTION CONTROL)
TO A BOARD
2SB647
2SD667
TILT DRIVE
TILT DRIVE
ab3
ae1
COIL
TILT(ROTATION)
ROTATION-
ROTATION+
CN302
TO A BOARD
CN305
TO H BOARD
P701
B-SS3578<U/C>-D..-P1-EPS05
R951
4.7k
4.7k
+5V
+5V
+5V
R940
10k
R955
10k
R507
10k
R596
95.3k
1
2
3
4
5
6
7
CN902
7P
H-IN
GND
V-IN
PCDET
1
2
3
4
CN903
4P
MENU
ORANGE/LED
GREEN/LED
GND
TO D-f BOARD
P7000
1
2
3
CN904
3P
USB DM
USB DP
GND
SDA
SCL
PC+5V(NC)
C920
0.1
R943
1k
R919
4.7k
4.7k
R920
10k
C915
100p
100p
D902
MTZJ5.1A
Q902
H2N3904
H SYNC BUFF
R922
10k
Q901
H2N3904
C SYNC BUFF
R923
10k
R921
1k
+5V
R924
1k
R946
100
R952
47
R947
47
C926
100p
100p
C927
100p
100p
R902 1k
C902
2.2
R903 1k
C903
2.2
R904 100
C904
2.2
R905 1k
R906 1k
R909 1k
R908 10k
R914
33.2
33.2
R948
1.4k
1.4k
C905
2.2
TILT
BLK
TEST
CS4
ABL/PWM
BRI
H-CENTER/O
TILT
C572
47
16V
C579
3300p
100V
R5125
430
C581
0.22 50V
1
2
C906
2.2
R935
10k
+5V
R915
30.1k
TEST
GREEN/LED
ORANGE/LED
HSYNC/O
VSYNC/O
MENU
H-DRIVER
HSYNC/O
VSYNC/O
R912 10k
R911 1k
R949
10k
C924
4.7
C925
0.1
R950
16k
C909
470p
470p
C907
10
C908
0.1
2µH
FB901
0.45µH
FB902
C910
0.1
C911
0.1
C913
22p
C912
22p
C914
100p
100p
MENU
ORANGE/LED
GREEN/LED
FOCUS
MUTE
HFLB
BOP
HUNLOCK
G1/VBLK
HDRV
BLANK OUT
BDRV
L509
150µH
R529
1k
Q526
RN1203
BUFF
C918
47p
C919
47p
R931
10k
R930
10k
R929
10k
R928
10k
D904
HZ5C1
D903
HZ5C1
D906
HZ5C1
D901
HZ5C1
D905
HZ5C1
R913
1k
R942
47
R941
47
ad1
ac1
ab1
ad2
R953
10k
R954
4.7k
4.7k
IC903
M51951B
RESET
GND
OUT IN
3
2
1
C923
2.2
R936
X901
C922
C921
1M
24MHz
22p 50V
22p 50V
R937 0
R926
100
R918
10k
R925
10k
D908
1SS119
D907
1N4148
ab4
R944
470
H_RETURN
Audio_Mute
ABL/O
C563
330
16V
16V
C930
220p
220p
R907
1k
R900
2.7k
2.7k
TH602
10k
C900
0.1
C928
0.1
D910
1N4148
D911
1N4148
0.45µH
FB903
SCL
SDA
PMG0
D
Schematic diagram
-
a
board
l
l
l
l
l
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