Panasonic DMR-EZ45VEB, Service Manual

Page: 41 / 108

* Note 2:
PG Shifter Automatic Adjustment Procedure
PROCEDURE F.I.P. DISPLAY
Turn on the Service Mode
1. Set Drive Select to VHS and press the [STOP] and [EJECT] key simultaneously for more than 3 seconds.
Activate the Service Mode 2 (Auto tracking will be turned off).
2. Pressing the [STOP] and [EJECT] key simultaneously twice.
Put it in PG adjustment mode.
3. Press the [EJECT] key for more than 3 seconds.
Set in adjustment No. 1.
4. Press the [CH UP] key once.
Insert the aligment cassette tape (VFM8125H3F)
5. The PG Shifter Adjustment starts automatically.
6. This value displays that PG Adjustment data is memorized in EEPROM
for example
Result Success Cassette tape is ejected automatically.
Error 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 PG Shifter Automatic Adjustment
(The installing position of Heads to the cylinder is out of
specification.
NG4 in the PG Shifter Automatic Adjustment
(The servo is not locked to the cylinder for more than 10
sec.)
Exit from Service Mode.
7. Press STOP and EJECT keys simultaneously in 6 times.
* Then the FIP becomes normal indication.
(Normal Indication)
* Note 3:
X-VALUE & LINEARITY (P2 and P3 Posts) Adjustment Procedure
1. Set the Auto Tracking to off.
a. Set Drive Select to VHS and press the [STOP] and [EJECT] keys simultaneously for more than 3 seconds to enter
Service Mode.
b. Press [STOP] and [EJECT] keys simultaneously twice to activate Service Mode 2 and then Auto-Tracking is turned off.
2. Perform the X-VALUE ADJUSTMENT
X-VALUE ADJUSTMENT
1. After turning off the Auto tracking, playback the alignment Tape and press [VHS CH UP] and [VHS CH DOWN] keys
simultaneously to adjustment the tracking to FIX value.
2. Adjust A/C Head Base so that the envelope becomes maximum level. (It is described on “5-2. Tape Interchangeability
Adjustment” in “R4 Mechanism” that is separated volume.)
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DMR-EZ45VEB