Technics SA-CH750

SA-CH750
SA-CH750 |
sformer
sformer
sformer
et
Removal
of
the
Fan
Ass’y
ee
Procedule
Procedure
une:
13246
37311512
Removal of the main P.C.B.
Main P.C.B.
Flat cable
Fan ass'y
1. Remove the connector (JK351).
2. Remove the 3 screws (@~®).
1. Remove the 4 screws (@~@).
2. Remove the fiat cable (J703-1, J703-2).
m NOTE
elnsert the projection on the
angle into the hole of the Projection
bottom board ass'y and then AAs
install the Main P.C.B.
[Bottom view]
Procedure eWhen checking the soldered surfaces of
19234511 main P.C.B. and replacing the parts, do as
shown below.
3. Remove the rib.
4. Remove the main P.C.B. in the direction of arrow.
1. Remove the 4 screws (Q@~@).
Input/output terminal P.C.B.
Front panel
ass'y
Bottom board ass'y
4. Connect the G.N.D. terminal to the bottom board ass'y by
the lead wire.
§. Reinstall the front panel ass'y to the input/output terminal
P.C.B.
2. Remove the rib.
3. Remove the main P.C.B. in the direction of arrow.
a ee
SA-CH750
Removal of the Power IC and
14 Regulator Transistor
Procedure
1324-6
37311312514
1. Unsolder the power IC or regulator transistors.
2. Remove the 3 screws (@~@).
Regulator transistor
e When mounting the power IC or regulator transistor, apply
silicone compound (RFKX0002) to the rear side of power IC
or regulator transistors.
poe | Removal of the Fan Ass’y
Procedure
13511515
Fan ass'y
Fig.1 2. Insert a screwdriver at the root of the fan (shown in Fig. 2).
3. Remove the cap (shown in Fig.3).
4. Remove the motor from the fan case (shown in Fig. 4).
5. When mounting the motor, align the fan case projection with
the hole of the motor (shown in Fig.5).
1. Release the 3 claws (shown in Fig. 1).
@ Replacement of the Foot
1. Remove the 4 heat melted posts on the Bottom board ass'y
with a pair of nippers or similar tool.
2. To replace the foot (RKA0055-N) on the Bottom board ass'y ,
melt the 4 posts with a soldering iron.
Heat melted posts
pee ae
Foot
Bottom board ass'y ea
Foot
(RKAOO55-N)
2432