Video head clog sensor, Power source, Video signai – Panasonic PV-840F User Manual
Page 29: Audio track, Cleaning the vcr, Features for a quality picture
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Head Cleaning
Playing older or damaged tapes may eventually
cause video heads to become clogged.
Video Head Clog Sensor
During playback this
screen appears if
clogging is detected.
To remove screen,
press PLAY on the
remote or VCR.
VIDEO HEADS MAY
NEED CLEANING
PLEASE INSERT HEAD
CLEANING CASSETTE
OR REFER TO MANUAL
END:PLAY KEY
Use “dry" type head cleaning cassette only.
(Part No. NV-TCL30PT is recommended.)
1 11
l / ' é A
5
Specifications
Power Source:
Power Consumption:
Video Signai:
Video Recording System:
Audio Track:
Tuner:
Broadcast Channeis:
CABLE Channeis:
Operating Temperature
Operating Humidity:
Weight:
Dimensions:
J=L
Cleaning Tape
120V AC, 60 Hz
Power On
Approx. 18 watts
Power Off
Approx. 3.3 watts
EIA Standard NTSC color
4 rota^ heads helical
scanning system
1 track (Normal)
VHP 2-13, UHF 14-69
Midband A through I (14-22)
Superband J through W (23-36)
Hyperband AA-EEE (37-64)
Lowband A-5-A-1 (95-99)
Special CABLE channel 5A (01)
Ultraband 65-94, 100-125
:41“F-104“F (5'’C-40°C)
10%-75%
6.6 lbs. (3.0 kg)
14-15/16" { W ) x 3-2/3" (H)
X
11-7/8" (D)
380 (W)
X
93 (H)
X
302 (D) mm
Follow cleaning tape instmctions carefully.
Excessive use of tape can shorten head life.
If head clog symptoms persist, contact your
nearest Factory Service Center or authorized
Service Center. (See page 32.)
Note: Designs and specifications are subject to change
without notice.
Cleaning the VCR
Use a soft cloth or dusting attachment of
your vacuum cleaner to dust your VCR.
Remove dust from the ventilation holes on
the back sides and bottom of the cabinet.
Plastic surfaces are easily scratched and
can be marred by alcohol and various
solvents. Avoid excessive use of oil-based
furniture polishes since the materials used
in the cabinet will accumulate more dust.
We recommend using a nonabrasive,
antistatic cleaner and polisher.
Features for a Quality Picture
Digital Auto Picture
Automatically controls the video output signal for
less noise depending on the tape condition.
Digital Auto Tracking
Continuously analyzes the signal and adjusts for
optimum picture quality.
Manual Tracking Control fto reduce picture noise)
Use during Playback and Slow Motion mode
to reduce picture noise. To return to Auto Tracking,
press POWER off, then on again.
V-Lock Control ftp reduce picture jitter)
In Still mode, CH (TRACKING)
A/T
operate as
a V-Lock control.
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