DOWNLOAD Sony HMD-A230 Service Manual ↓ Size: 2.86 MB | Pages: 71 in PDF or view online for FREE

Name: Sony HMD-A230
Brand: Sony
SKU: 7453
Rating: 4 (1 reviews)

Model: HMD-A230
Pages: 71
Size: 2.86 MB
Type: PDF
Document: Service Manual
Brand: Sony
Device: Audio
File: hmd-a230.pdf
Date: 2018-11-20

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HMD-A230(E)
4-2
6
4
3
5
2
STBY 5V
CN1001
1
2
3
GND
KEY
4
LED RED
5
LED GRN
D1005
S1007,1003
KEY MATRIX
PB4
X901
24MHz
SDA
SCL
H IN
V IN
X5
PA5
PA6
RDI
CBLK
CLP
SCL
SDA
PB7
PB6
RESET
DA8
DA6
V IN
OOB
10
11
12
13
14
15
16
17
18
1
OUT
2
DA5
TDO
OSC OUT
OSC IN
HSO
ITA
HFB
DA3
PFV
PB1
PB3
DA1
DRIVER
7
6
5
4
1
2
4
CTL
VCC
VADJ
3
VCRL
I SENSE
IREF
DS
GND
DEM
V AUX
H OUT
H FLY
V SAW
V SIN
V DIV
LOCK
V DF
E/W
X902
CN904
IC901 CPU
IC902 DEF CONTR0L
STBY 5V
GND
KEY
LED RED
1
3
4
2
5
6
7
8
HRTRC
VRTRC
CBLK
BPCLP
IICSCL
GND
IISDA
CSYNC
1
3
4
2
5
6
7
8
9
+180V
CN606
IC602
HEATER OUT
NC
+80V
GND
H1
+12V
GND
+5V
SRBY +5V
1
3
4
2
D GND
CN902
IC904 RESET
RY601
+12V
RELAY
DRIVE
Q601
TH601
F601
S601
TH600
D609
D620
D605
IC604 ERROR AMP
D619
IC605
+12V REG
IC608
+5V REG
D622
D614
D618
D617
D611
D613
IC607
+5V REG
D612
LF602
LFT
D601
AC RECT
IC601
SW REG CONT
IC603
POWER
SWITCHING
Q602
CN600
IC905 EEPROM
STBY
+5V
CN901
STBY +5V
RXD
TXD
1
3
L
4
3
1
2
G
N
+180V
+80V
+12V
+5V-4
STBY +5V
+5V-4
+12V
-15V
STBY +5V
+15V
+80V
+180V
2
DGC 2
NC
DGC 1
2
1
THP600A
CN602
CN601
THP600
G1
1
5
4
NC
6
H DY+
H -DY
V-DY
CN501
CN510
H DY-
3
NC
2
V DY-
1
V DY+
ROTATION+
CY-DY
CN701
ROTATION
1
2
3
ROTATION-
CY1+
4
CY1-
5
CY2+
6
CY2-
7
CY3+
8
CY3-
9
CY4+
10
CY4-
15
48
47
44
45
38
39
46
22
36
37
12
13
CSI
28
54
9
7
8
5
5
7
4
6
6
4
I
O
I
O
5
7
6
13
11
3
1
I
O
8
1
2
4
5
9
14
2
DA2
OUT
WC
AC IN
DGC
3
16
18
19
4
32
23
27
26
4
3
29
12
6
4
8
2
6
4
5
2
3
1
1
3
8
1
9
17
14
8
1
5
7
3
3
23
2
8
4
10
27
2
28
24
22
20
19
18
13
14
12
HV
13
16
FV1
15
14
FV2
12
1
6
5
4
16
17
14
2
3
5
4
3
1
2
7
6
9
8
9
8
7
6
2
10
3
1
1
2
4
BUFF
Q505
DF AMP
Q504
H DRIVE
Q501,502
H DRIVE
OUT
Q511
S-CAP CHANGE
Q512-516
H OUT
Q507
L503
HOC
BUFF
-
+
+
+
-
-
-
+
-
+
IC501 PWM CONTROL
AMP
REF
RV501
HV
ADJ
ABL
D515
D522
D523
TO
PICTURE TUBE
FOCUS
FOCUS
HV REG OUT
Q510
CHOPPER
Q503
T501 FBT
2
1
7
6
SYNC LOCK
Q522, 524
D517
H FLY
BUFF
Q525
S0-S4
IC502 ROTATION DRIVE
IC702
D CONVERGENCE OUT
IC701 CONVERGENCE CONTROL
IC703
S CONVERGENCE OUT
T504
HDT
T503
DFT
T505
HST
BUFF
Q521
H REG
Q520
S0-S4
H BLK
BUFF
Q508
H AMP
Q903
IC401 V OUT
OUT
OUT
STBY5V
OUT B
-IN B
OUT A
-IN A
V CONV OUT
H CONV OUT
H STATIC OUT
V STATIC OUT
-IN A
I OUT A
OUT A
-IN B
I OUT B
OUT B
FB
-IN
+IN
+IN
STBY
+IN B
+IN A
SDA
SCL
HD IN
VS IN
V POS IN
V REF OUT
+IN A
+IN B
+IN
VCC
VCC
SDA
SCL
49
53
PA0
PA4
OVP/OCP
Q604
T601
SRT
REG SW
Q603
CONVERGENCE CONTROL,
DEFLECTION, CPU,
POWER SUPPLY
D
TO
A BOARD
CN306
E
TO
A BOARD
CN304
C
TO
A BOARD
CN309
D
(USER CONTROL, LED)
H1
11
LED GREEN
STBY 5V
STBY 5V
VSD
26
PD3
25
BUFF
Q901
+5V
+12V
4
10
D628
S602
Q605,612
4
D510
LF506
LCT
7
10
2
5
+12V
D505
L508/HLC
CHOPPER
Q509
RV502
L510
HCC
D531
D530
1
8
2
5
T602
SRT
1
2
4
3
PH601
IC611
3
1
3
1
7
IC610
D633
D634
3
4
M
D
C
9
TO
A BOARD
CN301
H
NC
4
CN512

HMD-A230(E)
4-3
4-2. FRAME  SCHEMATIC  DIAGRAM
AC IN
D
HV
DEFLECTION,CPU, 
CONVERGENCE CONTROL, 
POWER SUPPLY
B-SS3599<J..>-KESSENZU
H
G1 G2
HG
RGB
PICTURE
TUBE
1
1.2KV
5
4
3
2
1
GND
STAND-BY
5V
DDC
SCL1
DDC
SCA1
HOST
GND1
5
4
3
2
1
GND
HOST
5V/STBY
5V
DDC
SCL1
DDC
SCA1
HOST
GND1
CN309
8P
8
7
6
5
4
3
2
1
NC
IICSDA
GND
IICSCL
BPCLP
CBLK
VRTRC
HRTRC
CN304
9P
WHT
9
8
7
6
5
4
3
2
1
STBY
5V
+5V
GND
+12V
H1
GND
+80V
NC
+180V
CN606
9P
WHT
9
8
7
6
5
4
3
2
1
STBY
5V
+5V
GND
+12V
H1
GND
+80V
NC
+180V
CN902
8P
8
7
6
5
4
3
2
1
NC
IICSDA
GND
IICSCL
BPCLP
CBLK
VRTRC
HRTRC
J
H1
A
CN607
5P
CN904
5P
6
5
4
3
2
1
STBY
5V
GND
KEY
LED
RED
LED
GRN
INPUT
SEL
SW
CN801
5P
1
2
3
4
5
6
STBY
5V
GND
KEY
LED
RED
LED
GRN
INPUT
SEL
SW
1
2
3
4
5
6
7
8
9
10
ROTATION+
ROTATIONÐ
CY1+
CY1-
CY2+
CY2-
CY3+
CY3-
CY4+
CY4-
CN701
10P
WHT
:S-MICRO
ROTATION
V DY
H DY
CN501
6P
WHT
:VH
1
2
3
4
5
6
V DY+
V DYÐ
NC
H DYÐ
NC
H DY+
CN602
2P
1
2
TH 600
THP 600A
DGC
1
2
3
4
DGC4
NC
NC
DGC1
CN601
4P
CN600
3P
1
2
3
AC L
NC
AC N
1
2
3
4
D GND
+5V
RXD
TXD
CN901
4P
S-MICRO
TO ECS
1
2
3
4
5
6
B.GND
BLUE
G.GND
GREEN
R.GND
RED
CN1001
5P
CN302
6P
CN301
1P
1
TAB
CN307
1P
(P-SW)
(VIDEO OUTPUT, OSD)
(USER CONTROL, LED)
CN512
1P
SIGNAL IN
  HD-15
(PIG-TAIL)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

HMD-A230  (E)
4-4
4-3. CIRCUIT  BOARDS  LOCATION
A
D
J
H1

HMD-A230  (E)
4-5
Note:
•
All capacitors are in 
µ
F unless otherwise noted. (pF:  
µµ
F)
Capacitors without voltage indication are all 50 V.
•
Indication of resistance, which does not have one for rating electrical power, is as follows.
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP : 1/10 W)
• All resistors are in ohms.
•
: nonflammable resistor.
•
: fusible resistor.
•
 T
:internal component.
•
: panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless otherwise noted.
•
: earth-ground.
•
: earth-chassis.
• The components identified by 
[
 in this basic schematic diagram have been carefully factory-selected for each
set in order to satisfy regulations regarding X-ray radiation.
Should replacement be required, replace only with the value originally used.
• When replacing components identified by 
]
, make the necessary adjustments indicated. (See page 2-1)
• When replacing the part in below table, be sure to perform the related adjustment.
• All voltages are in V.
• Readings are taken with a 10 M
Ω
 digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production tolerances.
•
*
: Can not be measured.
• Circled numbers are waveform references.
•
: B + bus.
•
: B – bus.
4-4. SCHEMATIC  DIAGRAMS  AND  PRINTED  WIRING  BOARDS
Note: The components identified by shading and
mark 
!
 are critical for safety. Replace only
with part number specified.
Note: Les composants identifiés par un tramé et
une marque 
!
 sont critiques pour la
sécurité. Ne les remplacer que par une pièce
portant le numéro spécifié.
•
Divided circuit diagram
One sheet of D board circuit diagram is divided into three sheets,
each having the code D-
a
 to D-
c
. For example, the destination
 ab1 on the code D-
a
 sheet is connected to  ab1 on the D-
b
 sheet.
a   b   1
Ref. No.
Circuit diagram division code

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