Panasonic AJSDX900P - 24P DVCPRO 50, Service Manual

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ELE-8
2-8. Pulse Cancel Adj.
BOARD PRE AMP Board
TP
TP103 (R), TP303 (G), TP503 (B)
(PRE PROCESS Board)
ADJ. EVR
F No. -
MODE CAM ON
M. EQ. Oscilloscope
SPEC. Level of center of noise = Level of BLK period
1. Click the “7. Pulse Cancel Adjustment” of the camera
adjustment software.
2. Connect a scope to TP103 (R-ch) and adjust the Slider
on the PC (EVR) so that the center of the noise of
signal period and BLK period are the same.
3. Confirm that the level of horizontal blanking period is
not change during operating “GAIN” switch L, M, H.
If the level is changed, return to step 2 and adjust
again.
4. Click “>>” .
5. Connect a scope to TP303 (G-ch) and adjust the Slider
on the PC (EVR) so that the center of the noise of
signal period and BLK period are the same.
6. Confirm that the level of horizontal blanking period is
not change during operating “GAIN” switch L, M, H.
If the level is changed, return to step 5 and adjust
again.
7. Click “>>” .
8. Connect a scope to TP503 (B-ch) and adjust the Slider
on the PC (EVR) so that the center of the noise of
signal period and BLK period are the same.
9. Confirm that the level of horizontal blanking period is
not change during operating “GAIN” switch L, M, H.
If the level is changed, return to step 8 and adjust
again.
10. Connect a Vector Scope
then set the gain to Max.
11. Confirm the black dot is on the origin of the Vector
Scope during operating “GAIN” switch L, M, H.
If the black dot is moved, return to step 2 and adjust
again.
12. Click
“>>” .
2-9. Test Signal Level Adj.
BOARD PRE PROCESS Board
TP
TP103 (R), TP303 (G), TP503 (B)
(PRE PROCESS Board)
ADJ. EVR
SIGNAL Internal TEST Ramp Signal
MODE -
M. EQ. Oscilloscope
SPEC. A = 1,000mVp-p
±
10mV
1. Click the “8. Test Signal Level Adjustment” of the
camera adjustment software.
2. Operate the “ABB” switch on the front of the Camera
and click “OK” .
3. Connect a scope to TP503 (B-ch) and adjust the Slider
on the PC so that the level “A” becomes 1,000mVp-p
±
10mV .
4. Connect a scope to TP303 (G-ch) and adjust the Slider
on the PC so that the level “A” becomes 1,000mVp-p
±
10mV .
5. Connect a scope to TP103 (R-ch) and adjust the Slider
on the PC so that the level “A” becomes 1,000mVp-p
±
10mV .
6. Click “>>” .
A
BLK
BLK
BLK
Center of the noise
Vector Scope (X5)
A
BLK
BLK
TP102: R
TP302: G
TP502: B