Vhs) X-Value & Linearity (P2 And P3 Posts Adjustment - Panasonic DMR-ES30VEG Service Manual

DMR-ES30VEG / DMR-ES30VEC / DMR-ES30VEB
18.2. (VHS) X-VALUE & LINEARITY (P2 AND P3 POSTS) ADJUSTMENT
1. Set the Auto Tracking to off.
a. Press the FF key and the EJECT key simultaneously for more than 3 seconds to enter Service Mode.
b. While keep pressing FF key, press the EJECT key twice to activate Service Mode 2, then Auto-Tracking is turned off.
2. Perform the X-VALUE ADJUSTMENT
18.2.1. (VHS) 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 adjust 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.)
Alignment Tape
Test Point of Playback Envelope
18.2.2. (VHS) LINEARITY ADJUSTMENT
1. After turning off the Auto tracking, playback the alignment Tape and press [VHS CH UP] and [VHS CH DOWN] keys
simultaneously to adjust the tracking to FIX value.
2. Adjust the LINEARITY so that the envelope is flat when moving tracking to (+) and (-) directions.
Alignment Tape
Test Point of Playback Envelope
l Main symptoms and Adjustment point
VFJ8125H3F
TW3001 (or TW4502)
VFJ8125H3F
TW3001 (or TW4502)
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