Read Panasonic GP-MF622E / GP-MF130E Service Manual online
– 5 –
4.3. Setting Up for Standard Picture
•
The adjustment should be done after 10 minutes warm
up.
•
Set the Logarithmic Gray Scale Chart.
•
Mount the Iris Lens (HF16A) on the Camera.
•
Incident light of 2,750 ± 150 lux on the Logarithmic Gray
Scale Chart.
•
Aim the Camera at the Logarithmic Gray Scale Chart.
•
Set the Camera so that the Logarithmic Gray Scale Chart
becomes full picture on the Underscanned Black and
White Video Monitor.
•
Adjust the Lens Iris to obtain correct focal point.
5. Adjustment Procedure
•
Refer to the Location of the Test Points and Adjusting
Controls on page 6.
(1) +5.0V Adjustment
Test Point : +Polarity of C67
Power section of the Main Board
Adjust :
VR6 (+5.1V ADJ)
Power sction of the Main Board
•
Connect the Digital Voltmeter to + Polarity of C67.
•
Adjust VR6 to obtain 5.1 ± 0.05V DC.
(2) Reset Bias Adjustment
Test Point : TP4 (RESET PULSE)
CCD section of the Main Board
Adjust :
VR2 (RESET BIAS)
TG/SG section of the Main Board
•
Connect the Oscilloscope to TP4.
•
FOR GP-MF622E, adjust VR2 to obtain indicated Voltage
(Rank) ± 0.1V on the CCD section of the Main Board as
shown in Table 5-1 and Fig. 5-1.
Rank
1
2
3
4
5
6
7
Voltage
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Reset Bias
Ground
Fig. 5-1
•
FOR GP-MF130E, adjust VR2 to obtain 0.75 ± 0.1V as
Reset Bias
(0.75
(0.75
±
0.1V)
Ground
Fig. 5-2
(3) Vsub Coarse Adjustment
Test Point : TP3 (V
SUB
) CCD section of the Main Board
Adjust :
VR1 (V
SUB
)
TG/SG section of the Main Board
8
Connect the Digital Voltmeter to TP3.
8
FOR GP-MF622E, adjust VR1 to obtain indicated Voltage
(Rank) ± 0.1V on the CCD section of the Main Board as
shown in Table 5-2.
8
FOR GP-MF130E, adjust VR1 to obtain indicated Voltage
(Rank) ± 0.1V on the CCD section of the Main Board as
shown in Table 5-3.
1st Rank 2nd Rank
Example : 95
➝
9.5V
E3
➝
14.3V
Rank
E
f
G
h
J
K
L
m
N
P
Voltage 9.0
9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5
Rank
Q
R
S
T
U
V
W
X
Y
Z
Voltage 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5
Table 5-2
1st Rank
3
4
5
6
7
8
9
A
B
C
Voltage
3.0
4.0
5.0
6.0
7.0
8.0
9.0 10.0 11.0 12.0
1st Rank
D
E
F
G
H
I
J
K
L
Voltage 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 210
2nd Rank
0
1
2
3
4
5
6
7
8
9
Voltage
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Table 5-3
Table 5-1
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