Specifications

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Bright and Contrast Adjustment
QV-10
Set
Oscilloscope
Input
CP101
Pattern
generator
Output
A
B
CP412
CP410
Trigger
10 K
VCC2
CP303
Input Input Input Output Output
Connection Point Signal Connection Point
Adjust Result
Pattern
generator
CP101 Oscilloscope CP412
Color bar
45.75 MHz
VR304
VR300
Adjust VR304 until A in the above
diagram equals 3.5 ± 0.1 V.
Adjust VR300 until B in the above
diagram equals 3.1 ± 0.1 V.
TROUBLESHOOTING
No Display
1. Check the slide switch on the key PCB.
2. Check the fuse (FU500) on the digital PCB.
3. Check the fuse (FU100) on the linear PCB.
4. Check the jack (JK500) on the digital PCB.
5. Check the flat cable between the digital and linear PCBs.
6. Check the back light.
7. Check the LCD.
No Display at Record Mode
1. Check the camera unit.
Defect of the Camera Unit
The camera unit must be replaced with whole unit when it is defective, because the precise adjustment is
required when the individual parts of the camera unit are replaced, and it can be done only at our factory.
(Except for replacing the outer case of the camera unit)
QV-30