Technics SL-PG420A - Page 9

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SL-PG420A
Removal of the power supply P.C.B. —
14
Procedure
1-14
Procedure
12-79
10-11-13
Power Supply
1. Remove the 4 screws (Q@~@). 1. Remove the 4 screws (O~®).
2. Remove the FPC board from the optical pickup. 2. Remove the 1 connector (CN11). ;
ee
Mi CHECKING OF THE SERVO P.C.B.
1. Remove the cabinet (see Ref. No. 1 of the- (To play a disc)
disassembly instructions). 1. Place the test disc.
@ 2. Remove the disc lid and disc holder (see Ref. No. 7 2. Reinstall the disc lid.to the loading unit.
and No. 9 of the same). 3. Turn “ON” the power switch of the player.
3. Remove the loading unit (see Ref. No. 10 of the 4. Push the bracket of tray SW (S1001) in the direction
same). of the arrow and release it.
4. When checking the soldered. surface of the servo Note: !f the test disc fails to rotate, press the tray
P.C.B. and replacing the parts, do as shown below. switch again.
c=
Tray SW(SI001)
>
Servo PC.B.
| Front panel
ass’y
Note: Put on the loading unit on the tabs of the front {
panel ass’y. (Fixed loading unit) \
Hold the loading unit and the optical pickup unit
& with a clip. (Fixed optical pickup unit)
Secure the optical pickup assembly with a clip.
(Otherwise the clamper will interfere with the
disc, restricting turntable rotation.)