Panasonic AJ-VF15BP, Service Manual

Page: 18 / 59

3-2
2. Electrical Adjustment Procedure
(AJ-VF15)
2-1. Power voltage Adjustment
BOARD MAIN BOARD
SPEC 9.5V +/- 0.1V
TEST TP2 (CN3 Connector 1pin)
ADJUST RV1 [V0-ADJ]
M.EQ Digital Volt Meter
1. Adjust
RV1
so that the Voltage at
TP2
is 9.5V+/-0.1V.
2-2. V Free Run Adjustment
BOARD MAIN BOARD / SUB1 BOARD
SPEC 48Hz+/- 0.5Hz (NTSC)
38Hz+/-
0.5Hz (PAL)
TEST TP12 (CN2 Connector 4pin)
/MAIN BOARD
ADJUST RV2 [V-HOLD] / SUB1 BOARD
M.EQ Frequency Counter
1. Adjust
RV2
so that the frequency at
TP12
is 48Hz+/-
0.5Hz (NTSC) / 38Hz+/- 0.5Hz (PAL)
2-3. H Free Run Adjustment
BOARD MAIN BOARD / SUB1 BOARD
SPEC 15.73+/-0.05kHz (NTSC)
15.63+/-0.05kHz (PAL)
TEST TP9 (CN2 Connector 1pin)
/MAIN BOARD
ADJUST RV1 [H-HOLD] /SUB1 BOARD
M.EQ Frequency Counter
1. Adjust
RV1
so that the frequency at
TP9
is 48Hz+/-
0.5Hz (NTSC) / 38Hz+/-0.5Hz (PAL).
2-4. Focus Adjustment
BOARD MAIN BOARD
SPEC 5.8kV +/- 0.1kV
TEST High Voltage Connector (FBT Side)
ADJUST RV5 [FOCUS]
M.EQ Digital Volt meter
[Use High voltage prove]
1. Set the
CONTRAST VR
,
BRIGHT VR
to the center and
PEAKING VR
to the minimum position.
2. Connect the high voltage voltmeter with the high voltage
prove to the connector between the FBT and anode cap.
3. Adjust
RV5
so that the High Voltage is within
specification.
2-5. Screen size Adjustment
BOARD MAIN BOARD / SUB1 BOARD
TEST EVF Picture
ADJUST RV3 [H-SIZE (WIDE)] / MAIN BOARD
RV3 [V-SIZE] / SUB1 BOARD
RV5 [V-SIZE (WIDE)] / SUB1 BOARD
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. Adjust
RV3
(On SUB1 BOARD) so that the V-BLK as is
within 1.5point scale shown in figure 2.
3. Adjust the
RV3
(On MAIN BOARD) so that the circle of
chart is most round.
Note : This adjustment should be performed after com-
pletion the Size Adjustment in the 4:3 mode.
Adjustment for 16:9 mode
1. Open the on-screen menu on the camera recorder in
the16:9 mode so that the EVF screen is 16:9.
2. Adjust
RV5
(On SUB1 BOARD) so that the circle of
chart is most round.
Fig.1 Registration Chart