JVC AV-21L91-BK Service Manual page 31

[COMPRESS (16 : 9), fv : 50Hz mode]
Measuring
Item
instrument
Adjustment Signal
of generator
V. ZOOM and
VER. HEIGHT Remote
control unit
Screen Size
Screen
Size
[COMPRESS (16 : 9), fv : 60Hz mode]
Measuring
Item
instrument
Adjustment Signal
of generator
V. ZOOM and
VER. HEIGHT Remote
control unit
Screen Size
Screen
Size
Test point Adjustment part
13. V. ZOOM
2. VER. HEIGHT
235mm
Test point Adjustment part
13. V. ZOOM
2. VER. HEIGHT
235mm
No. 51898
Description
1. Receive a PAL cross-hatch signal of vertical frequency 50Hz.
2. Select COMPRESS from the MENU and set COMPRESS to ON.
3. Select 3. DEF from the SERVICE MENU.
4. Set the initial setting value of 13. V. ZOOM with the MENU –/+ key.
5. Select 2. VER. HEIGHT with the MENU &/^ key.
6. Set the initial setting value of 2. VER. HEIGHT with the MENU –/+
key.
7. Adjust 2. VER. HEIGHT to set the vertical amplitude of the image to
235mm.
Description
1. Receive a NTSC cross-hatch signal of vertical frequency 60Hz.
2. Select COMPRESS from the MENU and set COMPRESS to ON.
3. Select 3. DEF from the SERVICE MENU.
4. Set the initial setting value of 13. V. ZOOM with the MENU –/+ key.
5. Select 2. VER. HEIGHT with the MENU &/^ key.
6. Set the initial setting value of 2. VER. HEIGHT with the MENU –/+
key.
7. Adjust 2. VER. HEIGHT to set the vertical amplitude of the image to
235mm.
AV-21L91
31