Panasonic AG-7350 Series - Ntsc V-Lock Adjustment; Video Section; Agc Level Adjustment (for Ag-7350); Vhs Deviation Adjustment (for Ag-7350)

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5-3-12. NTSC V-LOCK ADJUSTMENT
TP ADJ. MODE INPUT
MONITOR
VR2202
NTSC
MONOSCOPE
SCREEN STILL
TAPE M. EQ.
SPEC.
VFM8080HQFP TV
NOV-DANCING
PORTION: 2 MONITOR
1. Play back the NTSC alignment tape at the
portion 2 in the sti II mode.
2. Adjust VR2204 so that the V-dancing does not
appear on the monitor screen.
3. Confirm that the no V-dancing is appeared on
the monitor screen while slowly turning Jog
dial on the front panel after completing this
adjustment.
VIDEO SECTION
5-3-13. AGC LEVEL ADJUSTMENT
(FOR AG-7350)
TP
VIDEO OUT 1
TAPE
BLANK
TAPE
VIDEO OUT 1
(H. RATE)
ADJ.
MODE INPUT
VR3501 STOP COLOUR
BAR
M. EQ. SPEC.
OSCILLO-
1.0Vp-p
±0.02V
SCOPE
-------1
1.0Vp-p±0.02V
__ _l
with 750 Termination
Figure E10
5-3-14. On-Screen Display H POSITION
ADJUSTMENT
TP ADJ. MODE INPUT
TP3502
C3586 STOP
C><
TAPE
M. EQ.
SPEC.
BLANK
TV
DOLBY
NR
TAPE
MONITOR
OFF=ON MAGENTA
5-8
1. Supply a colour bar signal to the video input
connector.
2. Place the unit in the E-E mode and push the
"screen display" button to monitor the colour
bar with on-screen characters.
3. Adjust C3586 so that the character of "OFF"
for DOLBY N R is positioned as shown in Figure
E 11.
REFERENCE LINE FOR ADJUSTMENT
GREEN
MAGENTA
DOLBY NR
I oFF I
AUDIO
CH2
AUDIO
EDIT
OFF
VIDEO MODE
AUTO
TV MONITOR
Figure E 11
5-3-15. VHS DEVIATION ADJUSTMENT
(FOR AG-7350)
TP ADJ. MODE
INPUT
TP3003 VR8004
PAL VHS
COLOUR
BAR
RECORDING
TAPE M. EQ.
SPEC.
BLANK TAPE
OSCILLO-
INNERBEAT IS MINIMUM
SCOPE
AS POSSIBLE
1 .
2.
Supply a colour bar signal to the video input
on the rear panel.
Set
the signal generator (sine wave) frequency
and
output as follows and supply it to TP3006.
Frequency
Output
: 3.8MHz +/-0.05MHz
: 50mVp-p - 1 OOmVp-p
3. Connect the asci lloscope to TP3006.
4. Place the unit in the recording mode.
5. Adjust VR8004 so that the inner beat at the
white portion of the colour bar becomes
minimum as posible as shown in Figure E12.
TP3006
V SYNC
PORTION
< .,.1
I WHITE PORTION I
~1~1111111111\lllq::J}
MINIMUM BEAT (INNER)
Figure E 12