Samsung SV-4000W, Service Manual

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Samsung Electronics 2-1
2. Reference Information
2-1 Servicing Jigs and Special Tools
1. For this VCR chassis, the program switch and the
sensors (start/end/reel) are located on the main
PCB, not on the deck ass’y.
2. As long as the deck ass’y is connected to the main
PCB, all repairs are possible.
Important : In order to repair the main PCB
without the deck ass’y connected, the X-5 chassis
jig should be used.
3. To emulate the function of the sensors, connect a
jumper or solder land (two point) at service
option(W750) on the timer PCB. Be sure not to
operate function key within 6 seconds.
4. The X-5 chassis jig can be used for the following :
1) When repairing or confirming the operation of the
deck ass’y.
2) When replacing or repairing the components
located under the deck ass’y.
3) When repairing the function PCB.
5. The X-5 chassis jig can not be used for the
following :
1) Repairing defects in the video section.
2) Repairing defects in the audio section.
3) If the defect is related to tape speed.
Note :
1) Repair may not be possible if there is external
noise between the deck ass’y and main PCB.
2) If tape control signal is not connected to the jig,
the VCR must be operated in SP mode.
2-1-1 Servicing guide
X-5 Chassis Jig
E/Cable 1
E/Cable 2
Jig Item
68140-500-013
68140-300-105
68140-500-104
Part No.
Connects the deck ass’y to the main PCB connecting cable.
Use for ASS’Y SMPS (CN01)
↔
ASS’Y MAIN (CN101) connecting cable.
Use for ASS’Y TIMER (CN703, CN704)
↔
ASS’Y JOINT (CN8J01, CN8J02)
Use
2-1-2 Servicing Jig
X-5 Chassis Jig E/Cable 1 E/Cable 2