15
DIAGNOSTICS OF OPTICAL PICKUP
AND REPLACING FE MAIN P.W.B AND BD MECHANISM UNIT ASSY
Make failure diagnostics of the Optical Pickup as follows.
If the laser drive current (Iop) becomes more than ±12[mA] of the initial value, the Optical Pickup should be replaced.
The laser drive current initial value is checked by "Iop checked Method" of next page.
In case of replacing the Pickup, change the whole part of the FE Main P.W.B and BD Mechanism Unit Assy.
No mechanical adjustment is necessary after the replacement.
Laser drive current initial value:
FL Display (The display part of 16 digits)
CD :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
T 2 1 - m m m m - n n n n
FL Display (The display part of 16 digits)
DVD :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
T 2 2 - m m m m - n n n n
FL Display (The display part of 16 digits)
BD(SL) :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
T 2 3 - m m m m - n n n n
FL Display (The display part of 16 digits)
BD(DL) :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
T 2 4 - m m m m - n n n n
Disc no read, unsteady playback, etc.
Laser drive current (Iop) check
HF wave form check
(Refer to WAVE FORMS)
Current value of the BD, DVD or CD IOP
is ± 12[mA] or more the initial value.
FE Main P.W.B. and BD Mechanism Unit
Assy replacing
Summary of Contents for S-5BD
Page 54: ...54 ANALOG VIDEO OUTPUT SIGNAL Signal Color Bar 100 Composite S5BD Oscilloscope 75ohm Loard...
Page 135: ...135 ADAU1328BSTZ 8U 310035 IC103 66 AVR 2310CI 2310 890 AVC 2310 ADAU1328 IC301 HDMI B D...
Page 147: ...147 2 FL DISPLAY FLD 19 ST 02GINK FL851 PIN CONNECTION GRID ASSIGNMENT...
Page 148: ...148 ANODE CONNECTION...
