Casio QV-770 Specifications download pdf (Page 22)

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TINT adjustment

• Signal contents

Input oscillation level 0.5 Vp-p to VIDEO terminal (CP302).

• Set power supply

VCL0 (CP101) to 5.0 ± 0.05V.

Apply 3.3 V ± 5 % to PW.

Input HDB signal by connecting PCB-LB.

(You can use an AC adaptor however, for the checking after repairs, apply above mentioned voltages.)

(1) Adjust VR301 so that the second and third pulses of VB (CP324) signal level will be the same.

Notes: • Perform this adjustment after contrast adjustment.

• Trigger FRP (CP305).

VCL0

QV-770

PCB-LA

(CP324)

3.3 V

(CP302)

(CP101)

S G

Power

suppry

VIDEO

(0.5 Vp-p)

1 2 3 4

oscilloscope

1 ... 21 22 23 ... 46

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Casio QV-770 Specifications Page 22