Read Sony BDV-EF220 / BDV-EF420 / HBD-EF220 / HBD-EF420 Service Manual online
HBD-EF220/EF420
7
2. Pass-fail judgment of the optical device (KEM480AAA)
Perform pass-fail judgment to judge whether the repair of the optical device (KEM480AAA) is necessary.
Perform pass-fail judgment to judge whether the repair of the optical device (KEM480AAA) is necessary.
2-1. Flow of drive section check
Note: Refer to “2-11. OPTICAL PICK-UP BLOCK (KEM480AAA), WIRE (FLAT TYPE)” (page 19) about how to remove the COVER, DRIVE.
2-2. Flow of optical device IOP check
NO
NO
Confirm whether
BD (BLX-104) can be
reproduced
Confirm whether
DVD (HLX-513)/
CD (HLX-A1) can be
reproduced
Confirm whether the
drive voltage is the
following values
CN5301 pin
3 : 12 V
Confirm OP FFC cable
(Part No. 1-839-609-11)
and SPD FFC cable
(Part No. 1-839-608-61),
and replace it when it
has been damaged
Then, confirm whether
this unit operates
normally
Confirm F5301 to
F5303 and F5305
on the MB148 board,
and replace it
when it has been
damaged
Confirm whether the
optical device IOP
is normal in the
service mode
(Refer to “2-2. Flow
of optical device
IOP check”)
Replace the
optical device
(KEM480AAA)
(Refer to “3. Optical
device (KEM480AAA)
replacement”)
NO
YES
OK
YES
YES
NO
NO
YES
NO
Turn the power on,
and change function
to “BD/DVD”
Press the buttons on
the remote commander
in order of [DISPLAY],
[0], [2], [1] [SUBTITLE],
and enter the service
mode
Press the buttons on
the remote commander
in order of [8], [7], [3],
[ ], and the
dIOP value is displayed
OK
Confirm whether
value is the
specification value
Specification value:
BD :
±3 mA
DVD/CD:
±3 mA
Replace the
optical device
(Refer to “3. Optical
device (KEM480AAA)
replacement”)
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