Sony HMD-A230 Service Manual page 28

(2) Schematic Diagrams of D (a, b, c, d) Board
1 2 3
A
B
CN701
10P
ROTATION
S-MICRO
ROTATION+ 1 R712
C
33
ROTATION- 2
1W
:RS
CY1+ 3
CY1- 4
CY2+ 5
CY-DY
CY2- 6
CY3+ 7
R711
0.56
CY3- 8
1W
:RS
CY4+ 9
D
CY4- 10
E
R563
1.5
:FPRD
STBY
R558
10k
:RN-CP
F
R559
2.7k
:RN
G
• D - a BOARD WAVEFORMS
1 2
2.8 Vp-p (V) 0.25 Vp-p (V)
• 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
4 5 6
IC702
-15V 15V
STK391-120
D CONVERGENCE OUT
R741
R743
0.82 0.82
:FPRD :FPRD
1
C709
470
25V
1 2 3 4 5 6 7 8 9 10
R745
C710
2.2
470
:CHIP
25V
C729
R731 330p
0 C706 B:CHIP
:CHIP
68p
CH:CHIP R716
-15V
R733
33 C707
1W 0 68p
:RS :CHIP CH:CHIP
R709 R737
R724
R739
2.2k 2.2k
10k
:RN-CP :RN-CP
:CHIP
:RS
R735 R713 R710 R708
2.7k 0.68 2.2k 2.7k
:RN-CP 1W :RN-CP :RN-CP
:RS R718
100
R707 1W
R720
2.7k C723 :RS
:RN-CP 0 0.01
:CHIP
B:CHIP
R721
27
:CHIP
R562
18k
:RN
R560
C549 C547
R566
1.0 15k
0.068
22
:PT :RN-CP
1W
2 4
:RS
5V
1.1 -3.2
IC502
15V
LA6500-FA
1.0
5V REG
1 3 5
C513
10
-15V
7 8 9
CN605
4P
15V
IC703
LA6515
S CONVERGENCE OUT
C716
CXA8070AP
0.033
CNVERGENCE CONTROL
25V
B
H CONV_CLP
4.3
1 2 3 4 5 6 7 8 9 10
V_SIN
4.9
R747
2.2
:CHIP VPOSIN
C733
4.8
330p
B:CHIP R730
C718
C725 V CONV_CLP
R719 2
10
0.033
15k 0.01 R727
1W
B:CHIP 15k C702 25V 4.3
:RN-CP
:RS
B
:RN-CP 4.7
A2
VREF OUT
V REF
22
R706 4.9
1W R705
15k 15k
:RN-CP A1
:RN-CP V_CONVOUT
YDC
R753 R755
4.9
15k 15k
R728
:RN-CP :RN-CP A3
R729 100 H_CONVOUT
R717
XDC
2.2 1W
2.2
H-SAW_CAP
:RS
4.9
C708 C711
A4
H_STATICOUT
0.1 0.1 XSC
:PT :PT H-AGC_CAP
4.9
A5
V_STATICOUT
YSC
4.8
ad22 ad21 ad14
(CONVERGENCE CONTROL)
10 11
ab1
ab2
ab3
ab4
IC701
ab5
D_GND
4.5
ab6
SCL
4.7
ab7
SDA
1.1
R703
270
C714 1/4W
D_VCC D704
C712
390p :CHIP
3.7 1SS119-25TD 0.1
CH:CHIP
:PT
HD.IN
R704
4.9
6.8k :RN
ab8
C701
V_REFIN C713
0.1
2200
4.8
25V
10V
B:CHIP
C704
4.2 220p
CH:CHIP
12V
C703
0.22
:MPS
A_VCC
C705
C715
0.1
470
F:CHIP
16V
ac10
V-REF
ac9
D- a
B-SS3572<AEP>-D..-P1
12
HMD-A230(E) 4-9