23
DV-210K-K
5
6
7
8
5
6
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A
B
C
D
E
F
5.2 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY
1
33
65
97
X4001
J7
3
0
2
Q
8
014
Q
8
019
Q
8
005
R
8
057
R
8
069
R
8
066
R
8
061 R
8
049
R
8
04
8
R
8
063
R
8
067
R
8
056
R
8
073
R
8
074
R
8
0
8
1
R
8
07
8
R
8
0
8
0
R
8
079
R
8
0
8
5
R
8
037
R
8
0
8
4
R
8
039
R
8
040
R
8
03
8
R
8
035
R
8
036
C
8
066
C
8
073
C
8
070
W
8
40
C
8
042
C
8
056
C
8
057
C
8
05
8
C
8
067
C
8
069
C
8
072
C
8
077
C
8
07
8
J
8
001
C7
3
1
6
C7
3
1
7
C
731
8
C73
1
9
B7
3
0
4
B7305
B4002
B
8
004
C
8
036
R7
3
0
2
IC4003
IC7301
R4059
R4060
R4061
R4062
C7
3
1
1
C7305
C7306
C7307
C730
8
IC
8
003
J
8
003
R4035
C
7303
C
8
051
C
8
053
Q
8
01
8
Q
8
013
C7309
C7310
R7305
C
8
03
8
L7301
Q4
0
0
1
Q7
3
0
2
IC4001
R2
3
1
6
C2307
C
2312
C2
3
1
1
R2
3
1
0
W
8
02
R
2313
R2
3
1
2
R2
3
2
7
R2
3
1
8
R2
3
1
7
R23
2
5
C2
3
0
6
IC2301
R4011
C4
1
1
6
C4112
IC4006
C4
1
0
0
C4099
C409
8
C4096
C4
0
9
5
B4
0
0
1
R4
0
1
3
C23
0
1
C
P
23
02
C2
3
2
1
C2
3
2
0
R4
0
1
2
R2309
R2306
R2307
R2
3
2
8
R2319
Q2
3
0
3
Q2304
Q2301
Q
2305
Q2302
C4
0
5
2
IC4005
R4
0
6
6
C4049
N
R4
0
0
2
R4
0
2
7
C
4050
C
P2
30
3
C4
0
9
1
C4
1
0
4
IC4004
R4
0
4
0
R4
0
4
4
W
8
10
R4053
R4054
B4
0
0
8
C4
0
2
9
C4002
R40
3
9
W
8
0
8
R4024
R4
0
2
5
C4
0
9
0
C40
8
9
R4
0
1
4
R4015
R4016
B4007
W
8
29
R4
0
1
8
R4
0
1
9
C4
00
6
R4031
C4
0
3
9
C40
4
4
C4134
W
8
32
C2
3
0
8
W
8
39
C4
0
8
0
C
P
23
01
W
8
26
R4
0
0
8
C4
0
1
0
W
8
16
W
8
17
C4072
C4012
N
R2301
C23
0
4
C
4047
C4
0
4
6
C
2302
R2
3
4
4
C2
3
2
3
C
8
059
C
7312
R
8
059
R
8
060
C
7304
C7
3
1
3
C4
0
5
6
R
8
051
R
8
014
C2
3
2
2
R2
3
4
2
C4
0
8
6
R4022
C4011
R4
0
7
5
C4
0
6
2
C4
1
0
1
C4102
C4
0
0
5
C4007
R4
0
0
2
C2305
R2311
R4017
R2
3
0
8
C4
0
88
C4
0
4
8
C4
0
5
1
R4
0
4
6
C
P
4
0
0
2
C4
1
3
2
R4
0
4
5
R23
2
6
R7
3
1
6
R7315
R731
8
R7317
R4
0
5
8
R4
0
3
3
W
8
05
C2
3
2
5
W
8
20
C7322
W
8
72
W
8
71
W
8
73
R7337
D4
0
0
6
W
8
1
8
C
4119
R4
0
6
7
CP4003_1
C
4120
CP
8
003
DMG099A
R
2316
C2307
C
2312
C
2311
R
2310
W
8
02
R
2313
R
2312
R2
3
2
7
R2
3
1
8
R
2317
R
2325
C
2306
IC2301
C
4116
C
2301
C
P
230
2
C
2321
C2
3
2
0
R2309
R2306
R2307
R
232
8
R2
Q2
3
0
3
Q2304
Q2301
Q2
3
0
5
Q2302
23
03
C4
0
9
0
C40
8
9
R4015
R4016
R4
0
1
R4
0
1
R4031
W
8
32
C2
3
0
8
W
8
39
N
R2301
C2
3
0
2
R
2344
C2
3
2
3
C
2322
R
2342
C
4101
C4102
C
4005
C4007
R4
0
0
C2305
R2
3
1
1
R4017
R2
3
0
8
C
2325
Case when this dia
g
nosis is re
q
uired :
When playback of any disc, including a test disc (D
V
D: GG
V
1025, CD: STD-905), cannot be performed
[1] How to dia
g
nose
In the case mentioned above, degradation of the laser diodes (LDs) mounted on the PICKUP Assy is suspected.
Measure the voltage between the two ends of one of the resistors mentioned below.
Measure the voltage between the two ends of
N
R2301 on the D
V
D MT PCB Assy.
If the voltage is 0.17
V
or higher, the 650-nm LD is degraded.
No playback of a DVD :
Measure the voltage between the two ends of
N
R2301 on the D
V
D MT PCB Assy.
If the voltage is 0.20
V
or higher, the 7
8
0-nm LD is degraded.
No playback of a CD :
If the measurements show degradation
of an LD, replace the PICKUP Assy.
D
V
D MT PCB ASSY
SIDE A
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QQ 376315150
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
