Cam Power, Cam Digital; Power Voltage Adjustment; Video Signal Level Adjustment - Panasonic DVCPRO AJ-CA901P Service Manual

Electrical Adjustment for AJ-BS900HEN & CA900HEN

8. CAM POWER, CAM DIGITAL

8-1. Power Voltage Adjustment

BOARD CAM POWER
1194
TP VFK A10pin, A13pin, A16pin, A20pin,
GND : A78pin
ADJ. VR1 [V ADJ]
INPUT ------
M. EQ D.V.M
SPEC. As shown below
Extend CAM POWER Board with VFK1194.
1.
Connect D.V.M. to following test-points and then
2.
adjust VR1 so that the each voltage is within the
specification.
TP
A10pin
A13pin
A16pin
A20pin

8-2. Video Signal Level Adjustment

BOARD CAM DIGITAL
TP AJ-BS900H : Y/G, PR/R, PB/B OUT
ADJ. VR1 [Y/G GAIN], VR2 [Y/G CLAMP DC]
VR3 [PR/R GAIN], VR4 [PR/R CLAMP DC]
VR5 [PB/B GAIN], VR6 [PB/B CLAMP DC]
INPUT AJ-CA900H Internal Color bar signal : ON
M. EQ Oscilloscope
SPEC. A = 700mV +/- 7mV
B = 525mV +/- 5.25mV
C = 525mV +/- 5.25mV
1. Press "CALL" Button and "BARS" Button on front
panel of AJ-BS900H simultaneously. (AJ-CA900H
Internal color bar signal output mode.)
2. Connect Oscilloscope to Y/G OUT and then adjust
VR1 so that the signal level A is within the
specification.
3. Adjust VR2 so that the step D ("→ → → → " portion)
become no step.
Specification
5.00V +/- 0.15V
3.30V +/- 0.10V
12.00V +/- 0.40V
-5.60V +/- 0.17V
ELE-23
4. Connect Oscilloscope to PR/R OUT and then
adjust VR3 so that the signal level B is within the
specification.
5. Adjust VR4 so that the step E ("→ → → → " portion)
become no step.
E
6. Connect Oscilloscope to PB/B OUT and then adjust
VR5 so that the signal level C is within the
specification.
7. Adjust VR6 so that the step F ("→ → → → " portion)
become no step.
F
A
D
B
C