Vcr Electrical Adjustment Procedures - Panasonic NV-VP60GL Service Manual

11.5. VCR ELECTRICAL ADJUSTMENT PROCEDURES

This section provides complete adjustment
required for electric circuits of VCR.
11.5.1. TEST EQUIPMENT
The following items will be required when performing electrical
adjustment.
1. VHS Alignment Tape. (VFJ8125H3F)
2. Monitor
11.5.2. SERVO SECTION
PG SHIFTER ADJUSTMENT
PROCEDURE
1. Turn on the Service Mode
1.Press the FF key and the EJECT
key simultaneously for more than 3
seconds.
2. Activate the Service Mode 2
While keep pressing FF key, press the
EJECT key in twice.
3. Activate the Entering Mode.
Press the EJECT key for more than 3
seconds.
4. Set the Mode 2.
Press the CH UP key once.
5. Insert the alignment cassette tape
(VFJ8125H3F)
The PG Shifter Adjustment starts
automatically.
6. When the sequence of the automatic
adjustment has been terminated, the
following action has been made.
* SUCCEED: The cassette tape is
ejected.
* ERROR: The "F20", "F21", "F22" or
"F23" is displayed. Refer to next PG
Shifter Adjustment Self-Diagnosis
Indication Table regarding the details
of the indications.
7. Exit from Service Mode.
Press FF and EJECT keys
simultaneously in 6 times.
Then the FIP becomes normal
indication.
procedures PG SHIFTER AUTOMATIC ADJUSTMENT SELF-DIAGNOSIS
INDICATION
F20
F21
F22
F23
NOTE:
F.I.P. DISPLAY
After replacing the DD Cylinder, the Tape Interchangeability
adjustment (X-Value Adjustment, P2 and P3 Posts
Adjustment) should be performed after the PG Shifter
Automatic Adjustment.
43
NG1 in the PG Shifter Automatic Adjustment
(The cylinder rotation is unstable during the automatic
adjustment.)
NG2 in the PG Shifter Automatic Adjustment
(The vertical sync signal is lacked while over 5 seconds on the
alignment tape.)
NG3 in the PG Shifter Automatic Adjustment
(The installing position of Heads to the cylinder is our of
specification.
NG4 in the PG Shifter Automatic Adjustment
(The servo is not locked to the cylinder for more than 10 sec.)
NV-VP60GL / NV-VP60GC / NV-VP60GCS