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
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