Panasonic Digital Video Cassette Recorder Ajd850 Operating Instructions

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Superimpose screen
The control signals, time code, etc. are displayed using abbreviations.
TCR  :::
CTL  = control signal
TCR = TC time code reading
UBR = TC user bit reading
Abbreviation
TV monitor
Characters displayed
The background of characters superimposed on the display can be changed using setup
menu No. 007 (CHARA TYPE).
TCR  :::
TV monitor
Display position
The position of the characters superimposed on the display can be changed using setup
menus No. 001 (CHARA H-POS) and No. 002 (CHARA...

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Servo reference
This unit automatically selects the input video signal selected by the INPUT switch, the
reference video signal supplied from the REF VIDEO input connector or the internal sync
signal as the servo reference signal.
When the signal is selected, the unitÕs mode and servo reference stand in the relationship
shown in the flowchart presented below.
EXT
1
2
What is the SERVO REF on the setup
menu No. 304 setting?
3Is the unit in the editing mode? 
(Is VIDEO, CH1, CH2, CUE or TC...

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Servo reference setting tables
The servo reference signal is switched as shown in the tables below depending on the servo
reference setting, deck mode and what input signal is available. When the mode is
transferred to editing or recording/playback, the image may be disturbed and the transfer
may be delayed if the references during playback and recording do not match.
n During playback or special playback
SERVO REF
Input signal status
Reference signal
on the setup menu
(servo reference)
No. 304...

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Audio V Fade Function
When editing tapes, the edit point splicing selection (setup menu No. 309 and 310)
information is recorded on the tape. This information is then sensed during playback, and V
fade or cut processing is automatically performed for these sections. [However, only when
the playback fade selection (No. 719) is AUTO.]
When the edit point splicing selection (setup menu No. 309 and 310) is CUT
Audio signal A
Noise appears at the edit splice.Audio signal B
When the edit point splicing...

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Printed circuit board
Printed
circuit
board
F8 board
ADDA1
SW1 Audio Input
Impedance SW
SW41HIGH This sets the CH1 audio input
impedance.
HIGH/600½
HIGH
SW101 Cue Input
Impedance SWHIGH
SW940
BETA Abbr.
nameFull name FunctionFactory
setting
H2 board
CUE
F4 boardAudio Input
Impedance SW
Component P
B/PR
Output level
selectorThis sets the CH2 audio input
impedance.
HIGH/600½
This sets the CUE input impedance.
This sets the component P
B/PR
output level when connecting with
the editor.
M
II      :...

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Rack mounting
The unit can be mounted into a 19-inch standard rack if the optional rack-mounting adaptors
(AJ-MA75P) are used. For the installation rails, it is recommended that the rail and bracket
for 18 length (model number CC3001-99-0400) of CHASSIS TRAK be used. (The complete
slide rail and bracket unit is not available from Panasonic) For further details, consult with
your dealer.
1Remove the screws on the left and right sides of the unit.
2Use the removed screw to attach the inner members...

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Condensation
Condensation occurs due to the same principle involved when droplets of water form on a
window pane of a heated room. It occurs when the unit or tape is moved between places
where the temperature or humidity varies greatly or when, for instance:
¥ It is moved to a very humid place full of steam or a room immediately after it has been
heated up.
¥ It is suddenly moved from a cold location to a hot or humid location.
When moving the unit to locations such as these, leave it standing for...

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Error messages
When a warning occurs in this unit, the warning lamp lights up.
Opening the DIAG menu will display the warning description on the counter display and the
monitor. Also, when an abnormal operation is detected in this unit, the AUTO OFF lamp lights
up and a message appears on the counter display.
DIAG menu
This display the VCR information.
VCR information includes ÒWARNINGÓ information and ÒHOURS METERÓ (usage time)
information. A DIAG menu appears on the monitor when the monitor is...

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Displaying the ÒHOURS METERÓ information
Turn the search dial to move the cursor (Î). The description for the item where the cursor is located is shown on
the counter display.
Item No. Item Description
H00 OPERATION
H01 DRUM RUN
H02 TAPE RUN
H03 THREADING
H11 DRUM RUN r
H12 TAPE RUN r
H13 THREADING r
H30 POWER ON

¥ The resettable items in the ÒHOURS METERÓ information are reset by the shop when performing maintenance or
other work.
¥ The search buttons and the search dial cannot be operated...

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Table of AUTO OFF Error messages
Counter display DescriptionVTR operation(Restart condition)
CAP ROTATE TOO
SLOW
CAP TENSION ERROR
DEW
DRUM ROTATE TOO
FAST
E-FF DRUM ROTATE TOO
SLOW
If the capstan motor speed is abnormally low, the 
AUTO OFF lamp lights, and the message display 
flashes.STOP
(POWER OFFàON)
If an abnormal tension at the supply side is detected 
in the capstan mode, the AUTO OFF lamp lights, and 
the message display flashes.STOP
(POWER OFFàON)
If condensation is detected, the AUTO...