Electrical Adjustments; Basic Adjustment; Electrical Adjustment Parts Location Guide; Switching Point - JVC HR-J6009UM Service Manual

Read and perform this adjustment when repairing the
circuits or replacing electrical parts or PCB assemblies.

1. BASIC ADJUSTMENT

CAUTION
When you exchange IC and Transistor for a heat sink,
apply the silicon grease (YG6260M) on the contact section
of the heat sink. Before applying new silicon grease,
remove all the old silicon grease. (Old grease may cause
damages to the IC and Transistor.)

1-1: SWITCHING POINT

CONDITIONS
MODE-PLAYBACK
Input Signal-Alignment Tape (MHP)
INSTRUCTIONS
1. Connect CH-1 on the oscilloscope to TP1002 and CH-2
to TP4201.
2. Playback the alignment tape. (MHP)
3. Press and hold the Tracking-Auto button on the remote
control more than 2 seconds to set tracking to center.
4. Adjust the VR1001 until the waveform of the oscilloscope
measures 6.5 ± 0.5(H) at both leading and trailing edges.
(Refer to Fig. 1-1-A, B)
ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (Connector Connections)
J4201
TP4201
TP1002
TP4001
TU6001
VR1001
J4203 J4204 J4205

ELECTRICAL ADJUSTMENTS

CP4002
A/C HEAD
TP1001
SYSCON PCB
CH-2
6.5H
CH-1
Fig. 1-1-A
CH-2
CH-1
6.5H
Fig. 1-1-B
AC IN
T501
1-17