Service manual

FO-IS125N
6 – 4
4. Optical Unit (LSU) Block (3/12)
(1-6D)
(1-6D)
(1-6D)
(1-1D)
(1-1D)
(1-6D)
(1-3G)
(1-1D)
A A
B B
C C
D D
E E
F F
G G
H H
I I
6 6 5 5 4 4 3 3 2 2 1 1
DG
DG
INT5V
DG
DG
INT5V
DG
INT5V
DG
INT5V
INT5V
DG
DG
DG
+24V
MG
MG
DG
+3.3V
+3.3V
INT5V
DG
DG
+24V
INT5V
DG
+24V
DG
MG
INT5V
DG
MG
PDATA
LDEN
S_nH
HSYNC
PMCLK
PMRDY
PMD
FANON
R302 10
Vout
3
GND
2
Vin
1
IC302
KIA7805API/P
VFM+
1
NC
2
VFM-
3
1 2 3
CNFM
A2001WV2-3P
R300 3.3K
9
10
8
14 7
IC300C
TC74VHCT00AFT
TP304
TP301
2
3 4 1 5
Q301
RN1702
34
IC301B
HD74LV1GW14ASCE
R303 10K
B
E
C
Q302
RT5N234C
C302 N.M.
R312
47 (2W)
A
K
D301
1SS352
TP308
C301 N.M.
TP303
TP306
C308
N.M.
1213
11
147
IC300D
TC74VHCT00AFT
TP302
R310 100K
C305
0.1u/50V (1608)
R307 1K
+
C306
22u/16V
C310 0.1u
R314
100
AK
D300
1SS352
R305 100
C300 N.M.
16
IC301A
HD74LV1GW14ASCE
R301 10K
R313 33
TP300
1 2
3
14 7
IC300A
TC74VHCT00AFT
C304 33p
L300
0 (MMZ1005Y102C)
C309
N.M.
TP305
4 5
6
14 7
IC300B
TC74VHCT00AFT
R309
10
CLK
1
-READY
2
-START
3
GND
4
+24V
5
1 2 3 4 5
CNPM
A2001WV2-5PE
2
3 4 1 5
Q300
RN1702
C303 0.1u
C307 0.1u
R304 100
R308
100
TP307
R311 10K
DGND
1
-S/H
2
-VIDEO
3
-LDEN
4
DGND
5
+5V
6
DGND
7
-HSYNC
8
1 2 3 4 5 6 7 8
CNLSR
B8B-PH-K-S
12
F300
KAB5002 251 NA29
R306 10K
VCC
5
GND
2
IC301C
HD74LV1GW14ASCE
Optical Unit (LSU) Block
3/12