JVC TV-13142 Service Manual page 17

SERVICE ADJUSTMENT
(For 4 heads model)
VHS Alignment Tape
MHP
Master Plane
Tentelometer
Part No.
MHP
MHP
PTU94002
X-JG153
Short Jumper
How to use the Servicing Fixture
1. Unplug the connector CP757 and CP353, then remove the TV/VCR Block from the set.
2. Remove the Operation PCB from the set, then connect it with the Syscon PCB.
If necessary, connect CP353. (Front A/V Jack Input Terminal)
3. Short circuit between TP1001 and Ground with the cable JG154.
(Refer to MAJOR COMPONENTS LOCATION GUIDE)
4. The EOT, BOT and Reel Sensor do not work at this moment.
At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
SERVICING FIXTURES AND TOOLS
Torque Gauge
Reel Disk Height
Adjustment Jig
Monoscope (For 4 heads model)
Color Bar, 1KHz (For 4 heads model)
Hi-Fi Audio (For 4 heads Hi-Fi model)
X Value Adjustment
VSR Torque, Brake Torque (S Reel/T Reel Ass'y)
Brake Torque (T Reel Ass'y)
VSR Torque, Brake Torque (S Reel)
Guide Roller Adjustment
X Value Adjustment
Reel Disk Height Adjustment
Playback Torque, Back Tension Torque During Playback
Used to connect the test point of SERVICE and GROUND
PREPARATION FOR SERVICING
PTU94002 Roller Driver
Torque Tape
Remarks
TV-13142
TV-13142W
X-JG153 X Value Adjustment
Screwdriver
Short Jumper
17