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 assÕy.
2. As long as the deck assÕy is connected to the main
PCB, all repairs are possible.
Important : In order to repair the main PCB
without the deck assÕy 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 function-timer PCB.
4. The X-5 chassis jig can be used for the following :
1) When repairing or confirming the operation of the
deck assÕy.
2) When replacing or repairing the components
located under the deck assÕy.
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 assÕy 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
Jig Item
68140-500-013
Part No.
Connects the deck ass’y to the main PCB connecting cable.
Use
2-1-2 Servicing Jig
Summary of Contents for SV-A20GK
Page 7: ...Reference Information 2 4 Samsung Electronics MEMO ...
Page 17: ...Disassembly and Reassembly 4 8 Samsung Electronics MEMO ...
Page 25: ...Alignment and Adjustment 5 8 Samsung Electronics MEMO ...
Page 35: ...Exploded View and Parts List 6 10 Samsung Electronics MEMO ...
Page 43: ...7 8 Samsung Electronics Electrical Parts List MEMO ...
Page 45: ...Block Diagrams 8 2 Samsung Electronics 8 1 Overall Block Diagram ...
Page 46: ...Block Diagrams Samsung Electronics 8 3 8 2 System Control ...
Page 47: ...Block Diagrams 8 4 Samsung Electronics 8 3 Video ...
Page 48: ...Samsung Electronics 10 1 10 Wiring Diagram ...
Page 51: ...Schematic Diagrams Samsung Electronics 11 3 11 1 S M P S POWER OPTION OPTION ...
Page 52: ...Schematic Diagrams 11 4 Samsung Electronics 11 2 System Control Servo ...
Page 53: ...Schematic Diagrams Samsung Electronics 11 5 IC601 HD6433977 RA10F ...
Page 55: ...Schematic Diagrams Samsung Electronics 11 7 IC301 SS11511M IC302 LA7411 IC303 SS23377M ...
Page 57: ...Schematic Diagrams Samsung Electronics 11 9 IC301 SS11511M IC302 LA7416 IC303 SS23377M ...
Page 58: ...Schematic Diagrams 11 10 Samsung Electronics 11 5 IF SYSCON SERVO SMPS POWER ...
Page 59: ...Schematic Diagrams Samsung Electronics 11 11 IC401 TDA9800 ...
Page 60: ...Schematic Diagrams 11 12 Samsung Electronics 11 6 I O ...
Page 61: ...Schematic Diagrams Samsung Electronics 11 13 11 7 VPS ...
Page 64: ...Schematic Diagrams 11 16 Samsung Electronics 11 11 Remote Control ...