12
DIAGNOSTICS OF OPTICAL PICKUP
AND REPLACING FE MAIN P.W.B AND BD MECHANISM UNIT ASSY
s
Make failure diagnostics of the Optical Pickup as follows.
q
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.
w
Loadfivetimesoffollowingdiscagainandplayingitforoneminute.ItbecomestheaimoftheOpticalPickup
exchange when it cannot play.
BD-RE
ABD-RE540W(made by ALMEDIO)
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 13 digits)
CD :
1
2
3
4
5
6
7
8
9
10
11
12
13
T 2 1 - m m m m - n n n n
FL Display (The display part of 13 digits)
DVD :
1
2
3
4
5
6
7
8
9
10
11
12
13
T 2 2 - m m m m - n n n n
FL Display (The display part of 13 digits)
BD(SL) :
1
2
3
4
5
6
7
8
9
10
11
12
13
T 2 3 - m m m m - n n n n
FL Display (The display part of 13 digits)
BD(DL) :
1
2
3
4
5
6
7
8
9
10
11
12
13
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)
FE Main P.W.B and BD Mechanism Unit
Assy replacing.
Current value of the BD, DVD or CD IOP
is ± 12[mA] or more the initial value.
q
Check the laser drive current value
Disc no read, unsteady playback, etc.
ABD-RE540W disc playability check.
(Loadfivetimesoffollowingdisc)
Disc cannot play.
FE Main P.W.B and BD Mechanism Unit
Assy replacing.
w
Check the playability disc
Summary of Contents for UD8004
Page 30: ...26 TROUBLE SHOOTING 1 8U 210095 7 AUDIO UNIT 8U 210094 2 AUDIO2 UNIT 8U 210094 3 AUDIO3 UNIT...
Page 31: ...27...
Page 32: ...28 2 8U 210094 1 POWER UNIT 2 1 The power cannot be turned on...
Page 33: ...29...
Page 34: ...30 3 8U 210095 4 FRONT UNIT 3 1 FL TUBE dosen t light...
Page 35: ...31 4 8U 310041 MAIN UNIT 4 1 No System Power up or Loading No Video or Audio Output...
Page 36: ...32 4 2 No Ether net Operation 4 3 No SD Card Operation...
Page 37: ...33 5 8U 210095 1 ANALOG VIDEO UNIT 5 1 Video S Video Out does not be outputted...
Page 38: ...34 5 2 Component Out does not be outputted...
Page 39: ...35 6 8U 310037 FE SACD UNIT 6 1 BD or DVD or CD or SACD check...
Page 42: ...38 R5F364VDNFB 8U 310041 IC853 R5F364VDNFB Block Diagram...
Page 43: ...39 R5F364VDNFB Pin Function...
Page 44: ...40...
Page 53: ...49 2 FL DISPLAY FL TUBE 15 BT 114GNK 8U 210095 4 FL101...
Page 54: ...50 MEMO...
Page 56: ...54 PRINTED WIRING BOARDS 8U 210094 AUDIO POWER P W B UNIT 1 2 COMPONENT SIDE...
Page 57: ...55 8U 210086 AUDIO POWER P W B UNIT 2 2 FOIL SIDE...
Page 58: ...56 8U 210095 AUDIO POWER VIDEO FRONT P W B UNIT 1 2 COMPONENT SIDE...
Page 59: ...57 8U 210095 AUDIO POWER VIDEO FRONT P W B UNIT 2 2 FOIL SIDE...
Page 60: ...58 8U 310041 MAIN P W B UNIT 1 2 COMPONENT SIDE...
Page 61: ...59 8U 310041 MAIN P W B UNIT 2 2 FOIL SIDE...
Page 62: ...60 8U 310037 FE SACD P W B UNIT FOIL SIDE COMPONENT SIDE...
Page 100: ...96 MEMO...
Page 101: ...97 WIRING DIAGRAM...
Page 105: ...101 PACKING VIEW 201 204 205 207 212 209 208 210 211 z...
Page 146: ...UD8004 8 7 6 5 4 3 2 1 A B C D E F SCHEMATIC DIAGRAMS 34 36 8U 210095 3 SD UNIT...
