Sony HCD-SHAKE5, Руководство по обслуживанию, Страница: 20 / 86

HCD-SHAKE5/SHAKE6D
20
Optical Block Diagnosis Flow (1/2)
Does Optical pickup move to inner circumference? (Visual check)
Yes Yes
No
R652: 1.2V Check voltage supply to MTK IC306 R653/R654: 3.3V Checks CN901 SL+/SL- signal. Does it output the signal?
Does Spindle motor rotate? (Visual check)
Yes
Does Optical pickup do focus search? (Visual check)
No
Check condition of transistor Q203, V
E
§9
C
§9
Check IC303 for 3.3V. If there is no problem, check circumference circuit of IC260 (
Switching regulator
) for 3.3V.
Check IC302 (LDO IC) for 1.2V.
Yes
A
No
No
No No No
Checks circumference circuit for SL+/SL- of IC902. Checks circumference circuit of IC306 FMO Signal.
Yes Yes Yes
REMOVE T
O
P
PANEL
REMOVE S
ID
E
PANEL
REMOVE CDM TOP P
ANEL
TURN ON TRA
Y IN
The Sled motor has a problem. Replaces BU.
Checks CN901 SP+/SP- signal. Does it output the signal? The Spindle motor has a problem. Replaces BU.
Checks circumference circuit for SP+/SP of IC902. Checks circumference circuit of IC306 DMO Signal.
Checks CN901 FCS+/FCS- signal. Does it output the signal?
The Optical pickup has a problem. Replaces BU.
Checks circumference circuit for FCS+/FCS- of IC902. Checks circumference circuit of IC306 FOO Signal.