Playback Sub Emphasis Input Level Adjustment; (For Ag-7150); S-Vhs Playback Level Adjustment (For Ag-7350); S-Vhs Playback Level Adjustment (For Ag-7150) - Panasonic AG-7350 Series Service Manual

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5-3-26. PLAYBACK SUB EMPHASIS INPUT LEVEL
ADJUSTMENT (FOR AG-7150)
TP ADJ. MODE INPUT
TP3005 VR3001
PAL
X
PLAY
TAPE M. EQ. SPEC.
COLOUR BAR
OSCILLO-
RECORDED
SCOPE
400 mVp-p ± 10 mV
TAPE
1. Prepare the prerecorded S-VHS tape which
recorded a colour bar on another recorder
(AG-7350).
2. Play back the colour bar signal.
3. Connect the asci lloscope to TP3005.
4. Adjust VR3001 for 400mVp-p +/- 1 OmVp-p as
shown in Figure E24.
TP3002
(H. RATE)
--------1
400mVp-p ± 10mV
-__ l
Figure E24
5-3-27. S-VHS PLAYBACK LEVEL ADJUSTMENT
(FOR AG-7350)
TP ADJ. MODE INPUT
VIDEO OUT 1 VR3004
PAL S-VHS
COLOUR BAR
PLAY
TAPE M. EQ. SPEC.
SELF
OSCILLO-
RECORDED
SCOPE
1.0Vp-p ±0.02V
TAPE
Note: This adjustment should be always completed
after the playback sub emphasis input level
adjustment.
1. Supply a colour bar signal to the video input
and record it for a few minute.
2. Connect the asci lloscope to the video out
connector with a 75 ohm termination.
3. Adjust VR3004 for 1.0 +/-0.02Vp-p as shown
1n
Figure E25.
VIDEO OUT 1
(H. RATE)
-
--~
~·o::Ioo2v
Figure E25
5-12
5-3-28. S-VHS PLAYBACK LEVEL ADJUSTMENT
(FOR AG-7150)
TP
ADJ. MODE INPUT
VIDEO OUT 1 VR3004
PALS·VHS
X
PLAY
TAPE M. EO. SPEC.
COLOUR BAR
OSCILLO-
RECORDED
SCOPE
1.0Vp-p ±0.02V
TAPE
Note: This adjustment should be always completed
after the playback sub emphasis input level
adjustment.
1. Prepare the prerecorded S-VHS tape which
recorded a colour bar on another recorder
(AG-7350).
2. Play back the colour bar signal.
3. Connect the asci lloscope to the video output
connector with a 75 ohm termination.
4. Adjust VR3004 for 1.0
+.
1 -0.02Vp-p as shown in
Figure E26.
VIDEO OUT 1
(H. RATE)
- - - - -
-
--~
1.0Vp-p ±0.02V
-__ l
Figure E26