Samsung SV-A120G, Service Manual

Page: 5 / 78

Reference Information
2-2 Samsung Electronics
2-1-4 How to Connect X-5 chassis jig
4. Insert wafers of drum motor, capstan motor and
loading motor on X-5 chassis jig into each of the
connectors of deck assÕy, and then secure with
three screws.
5. Solder the 3 leads of the jig cable to ÒCN605Ó
on the main PCB.
6. Apply power to the function PCB.
7. Insert a test tape into the housing assÕy.
8. Simultaneously touch the start and end sensor
LEDs on the PCB, so that the tape loads
automatically. After the tape is loaded, all of the
function buttons on the function PCB can be
used.
9. If the test tape is ejected while the jig is in use,
attempt to re-load the tape by simultaneously
touching the start and end sensor LEDs. If the tape
still does not load, reset the function PCB by
pressing SW715.
Note : After completing repairs, SW715 on the function PCB in order to reset.
1. Unplug the power cord from AC outlet.
2. Remove the deck assÕy from main PCB (See Page
4-5 of service manual).
3. To emulate the function of the sensors, place a
jumper or solder land (two point) at service
option(W750) on the function-timer PCB.
(see diagram below).
SW712
PLAY
SW709
STOP
SW703
P/S
SW715
RESET
W750 SERVICE OPTION
SW702
TV/VCR
SW708
NICAM SW706
SP/LP
SW711
SYSTEM
SW707
REC
SW701
CH/DOWN
SW705
CH/UP
JS701
Function-Timer (Component side)
SW713
FF
SW703
P/S
SW712
PLAY
SW709
STOP
SW714
REW
W750
SERVICE OPTION
SW715
RESET
SW708
NICAM SW702
TV/VCR
SW706
SP/LP
SW711
SYSTEM
SW707
REC
SW705
CH/UP
SW701
CH/DOWN
Function-Timer (Component side)
SV-A140