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
VFJ8125H3F
Test Point of Playback Envelope
TW3001 (or TW4502)
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
VFJ8125H3F
Test Point of Playback Envelope
TW3001 (or TW4502)
●
Main symptoms and Adjustment point
50
DMR-EH80VEG / DMR-EH80VEB
Summary of Contents for Diga DMR-EH80VEB
Page 43: ...43 DMR EH80VEG DMR EH80VEB ...
Page 66: ...66 DMR EH80VEG DMR EH80VEB ...
Page 68: ...DMR EH80VEG DMR EH80VEB 68 ...
Page 76: ...DMR EH80VEG DMR EH80VEB 76 ...
Page 100: ...DMR EH80VEG DMR EH80VEB 100 ...
Page 101: ...26 EXPLODED VIEWS 26 1 MECHANISM CASING PARTS 101 DMR EH80VEG DMR EH80VEB ...
Page 102: ...26 2 FRONT PANEL PARTS 102 DMR EH80VEG DMR EH80VEB ...
Page 103: ...26 3 VHS MECHANISM PARTS 103 DMR EH80VEG DMR EH80VEB ...
Page 104: ...26 4 PACKING ACCESSORIES 104 DMR EH80VEG DMR EH80VEB ...
Page 159: ...28 3 POWER P C B FOR PRINTING A4 SIZE DMR EH80VEG DMR EH80VEB 159 ...
Page 160: ...DMR EH80VEG DMR EH80VEB 160 ...
Page 161: ...DMR EH80VEG DMR EH80VEB 161 ...
Page 162: ...DMR EH80VEG DMR EH80VEB 162 ...
Page 172: ...DMR EH80VEG NICAM DECODER PCB COMPONENT SIDE 94 DMR EH80VEG DMR EH80VEB 172 ...
Page 177: ...25 11 SD CARD P C B SOLDER COMPONENT SIDE 97 DMR EH80VEG DMR EH80VEB 177 ...