3-3
2-6. Brightness Adjustment
BOARD SUB2 BOARD
SPEC
Pedestal Portion is Just Dark
TEST
EVF Picture
ADJUST RV4 [SUB BRIGHT]
SIGNAL Color Bar from Camera Recorder
Adjustment for 4:3 mode
1. Open the on-screen menu on the camera recorder in the
3:4 mode so that the EVF screen is 4:3.
2. Set the camera recorder in the color bar output mode.
3. Set the
BRIGHT VR
,
CONTRAST VR
to the center
position and
PEAKING VR
to the minimum position.
4. Adjust
RV4
at the point where the brightness of the
pedestal portion changes from bright to just dark.
(Figure.3)
2-7. High voltage regulator Adjustment
BOARD MAIN BOARD
SPEC
6.0V+/-0.1V
TEST
TP11 (IC9 7pin)
ADJUST RV6 [OPAMP-ADJ]
M.EQ
Digital Volt meter
1. Set the
BRIGHT VR
.
CONTRAST VR
and
PEAKING VR
to the minimum position.
2. Adjust
RV6
so that the voltage is 6.0V+/-0.1V.
2-8. Heater voltage Adjustment
BOARD MAIN BOARD
SPEC
635mV+/-15mV (DC)
TEST
TP5 – TP6 (CN5 connector 3pin-4pin)
ADJUST RV7 [VH-ADJ]
M.EQ
Digital Volt meter
1. Adjust
RV7
so that the heater voltage is 635mV+/-15mV
(DC).
Fig.3 Brightness Adjustment
Black out confirmation
Fig.2 Screen size Adjustment
V-BLK Portion
CRT Frame Portion
A1 (1.5Scale)
A2
A1 = A2
