Panasonic Digital Hd Video Cassette Recorder Ajhd1700 Operating Instructions

							111
Time code and user’s bit
Time code
The  time  code  is  used  when  the  time  code  signal
generated  by  the  time  code  generator  (time  code
signal  generator)  is  to  be  recorded  on  the  tape,  its
values are to be read by the time code reader (time
code signal reader), and the absolute position of the
tape  is  to  be  displayed  in  increments  of  hours,
minutes, seconds and frames.
The time code is written in the sub-code area (data
area) of the helical track.  This enables insert editing
to be conducted independently using the time code
alone.  In addition, the VTR’s playback speed can be
read from the stop mode to the slow motion playback
up  to  high-speed  playback  (approx.  50k
normal
speed or approx. 100k
normal speed when using a
DVCPRO tape).
The time code values are indicated on the display and
superimposed display.
TCR 00  :  07  :  04  :  23
tttt
Hours Minutes Seconds Frames
User’s bit
The “user’s bit” refers to the 32-bit (8-digit) data frame
among the time code signals which has been released
to  users.    It  enables  operator  numbers  and  other
values to be recorded.
The alphanumerics which can be used for the user’s
bit are number 0 to 9 and letters A to F.
Setting the internal time code
1Set the VTR to the stop mode.
4Setting  RUN MD on the  menu
REC: 
The time code advances simultaneously with the
recording.
FREE: 
The time code advances, like time, irrespective of
the VTR operation.F5
5Setting  TCG MD on the  menu
REGEN: 
The continuity of the underlying time code in place
prior to editing is maintained.
PRE: 
The time code can be preset using the operation
panel controls or remote controller.
AUTO: 
The time code is automatically switched to REGEN
or PRE depending on the VTR
’s operation mode:
during  editing,  REGEN  is  selected;  at  all  other
times, PRE is selected.
F3
6Registering the TC preset values
Display the  menu.

•Preset (in the preset enable status)
1
When  among the number keys is pressed,
the TC display switches to TCG (UBG), and
the  TCG  value  characters  (all  digits)  are
highlighted.
2
When  is  pressed  again,  one  digit  is
highlighted, and the change enable status is
established.
3
Input  the  desired  value  using  the  number
keys.  The entire input value can be cleared
by pressing   while holding down  .
4
To input the letters used with the user
’s bit,
press  the  same  number  key  (toggle  by
tapping  or  ) while holding down  . To
move from one digit to another, turn the ADJ
dial.
5
To enter the value, press the  key.
6
When the display screen has been changed
during  the  input  process  or  if  the  button
has been pressed, the change enable status
is released, and the setting is canceled.

•Reset
Press  (TC CLR).
F4
C
ENT
F87
F0
T
T
2Set  TC/CTL on the  menu to TC.F3
3Set  SOURCE on the  menu to INT (for
selecting the internal time code).F1 
						

							112
Concerning the time code and user’s bit
Setting the external time code
1Set the VTR to the stop mode.
3If the video input has been set to HD SDI input or
INT  SG,  set  TC  SRC  on  the    menu  to
EXT-L, SLTC or SVITC.
F1
4If the video input has been set to SD SDI (when
the optional board has been installed), set  TC
SRC on the  menu to EXT-L or VITC.
F1
2Set  TC/CTL on the  menu to TC.F3
Cue time registration, preroll and
cue-up
(These functions work only on the HOME, PF1 and
PF2 screens.)
• Registration
Register the cue time by pressing the  button
while holding down the  button.
• Presetting
When the  button is pressed, the characters of
the  cue  time  or  TC/UB  display  are  highlighted.
Turn the ADJ dial to highlight the characters of the
cue time.
The subsequent steps in the registration procedure
are the same as for TCG.
• Prerolling
Press the PREROLL button to preroll the tape to
the currently registered CUE point.
• Cue-up
Press the PREROLL button while holding down the
button  to  cue  the  tape  up  to  the  currently
registered CUE point.
F
T
F
SET
Time code and user’s bit playback
1Set the VTR to the stop mode.
3Press the PLAY button.Playback  starts,  and  the
time code appears on the display.
If  (SUPER) on the  menu is set to
ON, the time code value is superimposed onto the
video signals from the VIDEO OUT3 connector.
F1

• While  a  drop  frame  time  code  is  being  read,  the
colon between the seconds and frames is replaced
with a period.
• If the time code signal is missing, it is interpolated
automatically using the CTL signal.
The following appears on the display.
2Set  TC/CTL on the  menu to TC or
UB.
TC: 
The time code is displayed.
UB: 
The user’s bit is displayed.
• In  the  event  that  it  has  become  impossible  to
read the time code, it is interpolated using the
CTL signal.F3
T ¢ R 00:01:04:07¢
An asterisk (¢)
appears here if the
time code signal is
missing.“   ”:1st, 3rd field“¢”:2nd, 4th fields
In the drop frame mode, the colon
between the seconds and frames
is replaced with a period.  (In the
59/60 Hz mode only) 
						

							113
Display position
The position of the characters superimposed on the
display can be changed using  (C HPOS) and 
(C  VPOS)  on  the    menu  and  the  ADJ
dial.
F3F2
Superimpose screen
The control signals, time code, etc. are displayed on
this screen using abbreviations.
TCR  
22: 
22: 
22: 
22
TV monitor
TCR  
22: 
22: 
22: 
22
TV monitorTCR  
22: 
22: 
22: 
22 TV monitor 
Abbreviations
CTL:Control signal count value
TCR:Time code data recorded in the SBC area 
TCR.:Time code data recorded in the VAUX area 
UBR:User’s bit data recorded in the SBC area 
UBR.:User’s bit data recorded in the VAUX area 
TCG:Time code data of the time code generator
UBG:User’s bit data of the time code generator
Operation mode
The  VTR’s  operation  mode  can  also  be  displayed
using  (DISPLY) on the  menu.
F4
TCR  
22: 
22: 
22: 
22
STOP
TV monitor
VTR operation mode
Characters displayed
The background of the characters superimposed on
the  display  screen  can  be  changed  using  (C
TYPE) on the  menu.
F5
TCR  
22: 
22: 
22: 
22
TV monitor TCR  
22: 
22: 
22: 
22
TV monitor
  
When the 23/24 Hz mode has been selected as the
system menu item No.25 (SYSTEM FREQ) setting,
the time code and other information superimposed on
the MONITOR and VIDEO OUT3 connectors are not
displayed.
[T
2R], [T
2R.], [U
2R] or [U
2R.] is displayed when the
data has not been read correctly from the tape. 
						

							114
POWEROFFON
HEADPHONES
PUSH
LOCKFULL
CH CONDITIONMONITORFULL/FINEREMOTELR9P50PRS-232CCH12345678CUE
XL/L/M-cassetteDo not insert S-cassette
without adapterEJECT
AUDIO CH SELECTSHIFTABC DEF GHI
JKL MNO PQRSPREVIEW/
REVIEWPRE-
ROLLA IN A OUT
HOME RF1 ASSEMADJUSTSHTL
REV FWDVA R JOG
STAND BYRECORDER INPUT CHECKPLAYER
SERVOEDIT PLAY REC
REW STOPFFREC INHIBIT
PUSH-INTERINSERT RF2
VIDEOUNITYTC CUE
AUDI OUNITYDIAG MENU
TRIMSET
INOUTAUTO
EDIT789
456BSTUV WXYZ123ENT0CT F
F1 F2 F3 F4 F5 F6CH1CH5CH2CH6CH3CH7CH4CH8
FULLRECP8RECP8RECP8RECP8
Selecting the audio recording channels and monitor output
Audio recording channels
The audio channels can be selected as shown below
using the AUDIO setup menu items.
Recording
track
CH1Signals recorded
CH1  input,  CH2  input,  CH3  input,  CH4  input,
CH1+CH2 input, CH3+CH4 input
CH2CH1  input,  CH2  input,  CH3  input,  CH4  input,
CH1+CH2 input, CH3+CH4 input
CH3CH1  input,  CH2  input,  CH3  input,  CH4  input,
CH1+CH2 input, CH3+CH4 input
CH4CH1  input,  CH2  input,  CH3  input,  CH4  input,
CH1+CH2 input, CH3+CH4 input
CH5CH5  input,  CH6  input,  CH7  input,  CH8  input,
CH5+CH6 input, CH7+CH8 input
CH6CH5  input,  CH6  input,  CH7  input,  CH8  input,
CH5+CH6 input, CH7+CH8 input
CH7CH5  input,  CH6  input,  CH7  input,  CH8  input,
CH5+CH6 input, CH7+CH8 input
CH8CH5  input,  CH6  input,  CH7  input,  CH8  input,
CH5+CH6 input, CH7+CH8 input
CUECUE input, CH1 input, CH2 input, CH3 input, CH4
input,  CH5  input,  CH6  input,  CH7  input,  CH8
input,  CH1+CH2  input,  CH3+CH4  input,
CH5+CH6 input, CH7+CH8 input, CH1–CH8 input
Monitor output channels
When  (M MIX) on the  menu is
set to L, R or L/R, the signals of a multiple number of
channels can be mixed and output.
When the number key corresponding to the channel
whose signals are to be monitored is pressed while
the “L” (or “R”) button is held down, that channel is
selected, and its signals are displayed on the audio
level meter.  (The same steps can also be taken to
de-select a channel which has already been selected.)
However, only up to 2 channels among the CH1-CH4
channels and only up to 2 channels among the CH5-
CH8 channels are selected.
(Examples: CH1 + CH3 + CH5 + CH8 can be selected
but CH1 + CH2 + CH4 cannot be selected.)F6
Number keys MONITOR SELECT switches 
						

							115
Display saving function
This function is provided to extend the service life of the
LCD  monitor.    It  starts  up  if  none  of  the  front  panel
controls have been operated or the cassette tape has not
been run at all for about 5 minutes.
While the saving function is working, the LCD monitor
display goes blank, and the “EX” symbol appears on the
time code display area.
To release the saving function, operate a button or dial
on the front panel or issue a tape transport command
from the controller.  The operation performed to release
the  function  will  be  executed  after  the  function  is
released. 
						

							116
ABCDEF GH
2Attach  the  outer  member  brackets  to  the  rack.
Check that the height is the same for the left and
right brackets.
3Remove the four screws at the front used to attach
the left and right side panels.
4Attach  the  AJ-MA75P  rack-mounting  adapters
using the same four screws.
1Attach the inner members of the slide rails.  Refer
to the figure below for the positions where they are
screwed into place.  The unit can be mounted into a 19-inch standard rack
if  the  optional  rack-mounting  adapters  (AJ-MA75P)
are used. For the installation rails, it is recommended
that  the  rail  and  bracket  for  18-inch  length  (part
number CC3061-99-0400) of Chassis Trak be used. If
an even greater clearance is to be left between the
VTR and rack when the VTR is pulled out, however, it
is recommended that the 22-inch long Chassis Trak
(part number CC-3001-99-0191) be used.
(The  complete  slide  rail  and  bracket  unit  is  not
available from Panasonic.) 
For further details, consult your dealer.
Rack mounting
 
• The  length  of  the  screws  used  is  subject  to  a
restriction.  
• Use screws which are less than 2/5q
(10 mm)
long.
•
Attach the inner member at the same symmetrical
positions  on  the  left  (L)  side  as  well.    Fix  the
members  in  place  using  3  screws  on  each  side
(total: 6 screws). When using the 22-inch long slide
rails, secure the screws at 4 locations.
• The letters shown in the figure are not actually
marked on the side panels.
Inner member (18-inch rail)
Xu.yP• zf
Inner member (22-inch rail) Positions where the right (R) inner
member is screwed into place
Rack-mounting adapters
5Remove the four rubber feet on the bottom panel
of the VTR, and install the VTR in the rack.
After  the  VTR  has  been  installed,  check  that  it
moves smoothly along the rails.
EIA standard rack
Fasten to rack with the
fixing screws.
 
• Keep the temperature inside the rack to between
41
xF and 104xF(5xC and 40xC).
• Bolt the rack securely to the floor so that it will not
topple over when the VTR is pulled out. 
						

							117
This  VTR  is  equipped  with  an  auto  head  cleaning
function which automatically reduces the amount of
dirt  on  the  video  heads.    In  order  to  maximize  the
VTR’s reliability, however, it is recommended that the
video heads be cleaned as and when appropriate.For further details on how to actually clean the heads,
consult with one of Panasonic’s service companies or
with your dealer.
Video head cleaning
Condensation occurs due to the same principle which
is involved when droplets of water form on a window
pane of a heated room.  It occurs when the VTR 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.
After  moving  the  VTR  to  such  a  location,  leave  it
standing for about 10 minutes rather than switching on
its power immediately.If  condensation  has  formed  on  or  in  the  VTR,  the
AUTO  OFF  lamp  lights,  and  the  cassette  tape  is
automatically ejected.Keep the power supplied and
simply wait until the AUTO OFF lamp goes off.
It is recommended that the video heads be cleaned
after the AUTO OFF lamp has gone off.
Condensation
Before proceeding with maintenance, be absolutely
sure to set the power switch to OFF and take hold of
the power plug and unplug it from the power outlet.
Use  a  soft  cloth  to  clean  the  cabinet.    To  remove
stubborn  dirt,  dilute  some  kitchen  detergent,  dip  a
cloth  into  the  solution,  wring  it  out  well,  and  wipe.
After having removed the dirt, take up any remaining
moisture using a dry cloth.  
Do not use alcohol, benzene, paint thinners or other
solvents.    They  can  discolor  the  external  parts
surfaces and remove the finish.
Maintenance 
						

							118
When a warning occurs in this VTR, the warning lamp
lights up.
When the DIAG menu is opened, a description of the
warning will appear on the front panel LCD area and
TV  monitor.    Also,  when  an  abnormal  operation  is
detected in this VTR, the AUTO OFF lamp lights up,
and  a  message  appears  on  the  time  code  display
area.
DIAG menu
This displays the VTR information.
The VTR information includes the warning information
and hour-meter (usage time) information.  The DIAG
menu appears on the front panel LCD display or on a
TV monitor when the TV monitor is connected to the
VIDEO OUT3 connector in the VTR’s connector area.
∫
Displaying the DIAG menu
Error messages
1Press the DIAG button.
The DIAG menu screen is now displayed on the
TV monitor.
2The warning information is displayed by pressing
(WARN) on the time code display area, and
the hour-meter information is displayed by pressing
(HOURS) on this area.
The  display  of  the  hour-meter  information  is
scrolled using the ADJ dial.
F2
F1
3To  exit  the  DIAG  menu,  press  any  other  direct
menu button.
∫
Displaying the warning information
• A  warning  message  is  displayed  whenever  a
warning occurs (the warning lamp lights up).  When
no warnings have been detected, “NO WARNING”
is displayed.
• When  a  multiple  number  of  warnings  occur,  the
descriptions  of  each  warning  can  be  checked  by
turning the ADJ dial.
POWEROFFON
HEADPHONES
PUSH
LOCKFULL
CH CONDITIONMONITORFULL/FINEREMOTELR9P50PRS-232CCH12345678CUE
XL/L/M-cassetteDo not insert S-cassette
without adapterEJECT
AUDIO CH SELECTSHIFTABC DEF GHI
JKL MNO PQRSPREVIEW/
REVIEWPRE-
ROLLA IN A OUT
HOME RF1 ASSEMADJUSTSHTL
REV FWDVA R JOG
STAND BYRECORDER INPUT CHECKPLAYER
SERVOEDIT PLAY REC
REW STOPFFREC INHIBIT
PUSH-INTERINSERT RF2
VIDEOUNITYTC CUE
AUDIOUNITYDIAG MENU
TRIMSET
INOUTAUTO
EDIT789
456BSTUV WXYZ123ENT0CT F
F1 F2 F3 F4 F5 F6CH1CH5CH2CH6CH3CH7CH4CH8
FULLRECP8RECP8RECP8RECP8
1
2ADJ dial 
						

							119
If “T&S&M” has been selected as the setup menu item
No.006 (DISPLAY SEL) setting, a message appears
in the mode display area whenever a warning or error
has occurred.  When a multiple number of errors have
occurred, the one with the highest priority is displayed.
Error messages
Priority Display and description
Higher
LowerError messages (see error message table):  When any
problem arises with the VTR’s operation, the AUTO OFF
lamp lights, and an error message is displayed.
INT SG:  If, when “INT SG” has been selected as the audio
input setting by  (VID IN) on the  menu or by the
 or  menu, and the EDIT button is
pressed, this message is displayed for the first two seconds
when editing is started.  In the same way, it is displayed for the
first two seconds when recording is started.F1
NO  INPUT:   If,  when  input  signals  (but  not  analog  audio
signals) are not supplied to the input connector selected by
(VID IN) on the  menu or by the  or
 menu, the EDIT button is pressed, this
message is displayed for the first two seconds when editing
is started.  In the same way, it is displayed for the first two
seconds when recording is started.
F1
Warning messages (see warning message table):  When
a warning occurs in this VTR, the warning lamp lights, and a
warning message is displayed.  When a multiple number of
warnings have occurred, the one with the highest priority is
displayed.
∫
Displaying the hour-meter information
Turn  the  ADJ  dial  to  move  the  cursor  (¢),  and  the
description for the item where the cursor is located is
shown as a superimposed display.
  
The resettable table hour-meter information items will
be reset by your dealer when maintenance or other
work is performed.
No./Item  Description
H00
OPERATIONDisplays  in  1-hour  increments  the  time  during
which power has been supplied.
H01
DRUM RUNDisplays  in  1-hour  increments  the  amount  of
time during which the drum has rotated.
H02
TAPE RUNDisplays  in  1-hour  increments  the  amount  of  time  during
which  the  tape  has  been  running  in  the  FF,  REW,  PLAY,
SEARCH (JOG, VAR and SHTL), REC and EDIT modes (but
not in the JOG, VAR, SHTL or STILL mode).
H03
THREADINGDisplays  in  1-time  increments  the  number  of
times the tape has been threaded (loaded) and
unthreaded (unloaded).
H04
F LOADINGDisplays  in  1-time  increments  the  number  of
front loading operations.
H05
LCD ONDisplays  in  1-hour  increments  the  amount  of
time during which the LCD monitor has lighted.
H15
LCD ON rDisplays  in  1-hour  increments  the  amount  of
time during which the LCD monitor has lighted.
(Can be reset.)
H11
DRUM RUNrDisplays  in  1-hour  increments  the  amount  of
time during which the drum has rotated.  
(Can be reset.)
H13
THREADINGrDisplays  in  1-time  increments  the  number  of
times the tape has been threaded (loaded) and
unthreaded (unloaded).  (Can be reset.)
H30
POWER ONDisplays  the  number  of  times  the  power  has
been turned on. H12
TAPE RUNr
Displays in 1-hour increments the amount of time
during which the tape has been running in the FF,
REW,  PLAY,  SEARCH  (JOG,  VAR  and  SHTL),
REC and EDIT modes (but not in the JOG, VAR,
SHTL or STILL mode).  (Can be reset.)
H14
F LOADINGrDisplays  in  1-time  increments  the  number  of
front loading operations.  
(Can be reset.)
F1 
						

							120
Higher
Lower
Error messages
Display•Description
•VTR operation and remedial action
Warning messages
Error messages
Priority•Display
•Description
•VTR operation and remedial action
SERVO NOT LOCKED
This is displayed when the servo is not locked for 3 or more
seconds during playback, recording or editing.
VTR:Operation continues.
• Check the tape.  A tape recorded using a system which
does not allow playback may have been inserted
.
HIGH ERROR RATE
This  is  displayed  when  the  error  rate  increases  and
correction or interpolation is performed for either the video
or audio signals.
VTR:Operation continues.
• Clean the video heads. LOW RF
This is displayed when a state in which the envelope level
has dropped to less than one-third of its normal level has
been  detected  for  1  or  more  seconds  or  when  a  state  in
which the CTL signal level has dropped to less than one-
sixth  of  its  normal  level  has  been  detected  for  1  or  more
seconds during playback, recording or editing.  
• The  CTL  signal  level  is  not  detected  during  DV  or
DVCAM playback.
• During recording or editing, the envelope level of only the
video simultaneous play heads is detected.
VTR:Operation continues.
• Clean the video heads and A/C head.
INVALID  TC  MODE  (in  23/24  Hz  or  25  Hz  (HD  or  SD)
mode)
This is displayed during playback if the time code has been
recorded  in  the  drop  frame  mode.    The  video  output  is
disturbed and the audio output is muted at the time code
drop point.
VTR:Operation continues.
• Check the tape.  If a tape recorded using a variable frame
rate camera is to be played back in this VTR, the time
code must be recorded in the non-drop frame mode.
TC SEQUENCE UNMATCH (in 23/24 Hz or 25 Hz (HD or
SD) mode)
This is displayed during playback if the correlation between
the active frame information and time code is irregular.  The
video output may not be uniform (the movements may not
be smooth).
VTR:Operation continues.
• Check the tape.  The active frame (first frame where the
frame  video  is  switched)  information  is  recorded  on  a
tape recorded using a variable frame rate camera.  When
such a tape is played back on this VTR, the 0 frame of
the  time  code  must  be  detected  at  the  active  frame
position.
FAN STOP
This is displayed when the fan motor has stopped.
VTR:Operation continues (and a warning beep is sounded
regardless of the menu setting.)
• Check that no foreign matter has accumulated on the fan.
NO RF
This is displayed when a blank part of the tape lasting for 1
or more seconds has been detected during playback.
When all of the following conditions have been met, it will be
recognized as a blank part.
• When no signals are output from any of the heads
• When the playback data cannot be read
• When the CTL signal is not present
VTR:Operation continues.
• Check  the  tape.    An  unrecorded  tape  may  have  been
inserted.
CAP ROTA
TOO SLOWIf  the  rotational  speed  of  the  capstan  motor  is
abnormally slow, the AUTO OFF lamp lights, and the
message display blinks.
VTR:Stops.
• Set the POWER switch to OFF and then back to ON
again.
CAP TENSION
ERRORIf an abnormal tension is detected at the supply side in
the capstan mode, the AUTO OFF lamp lights, and the
message display blinks.
VTR:Stops.
• Set the POWER switch to OFF and then back to ON
again.
DEWWhen condensation has been detected, the AUTO OFF
lamp lights, the message display blinks, and the VTR
transfers to the EJECT mode.  After the tape has been
ejected, the drum continues to rotate in order to dry out
the condensation.
When the condensation has cleared, the AUTO OFF
lamp goes off, the message display is cleared, and the
VTR is ready for operation again.
• When condensation is detected in the EJECT mode,
the drum starts rotating as soon as it is detected.
• When condensation is detected while a cassette is
inserted, the drum stops rotating and starts rotating
again after the tape has been ejected.
VTR:EJECT
• Wait with the power on.
DRUM ROTA
TOO FASTIf  the  rotational  speed  of  the  cylinder  motor  is
abnormally high, the AUTO OFF lamp lights, and the
message display blinks.
VTR:Stops.
• Set the POWER switch to OFF and then back to ON
again.
DRUM ROTA
TOO SLOWIf  the  rotational  speed  of  the  cylinder  motor  is
abnormally slow, the AUTO OFF lamp lights, and the
message display blinks.
VTR:Stops.
• Set the POWER switch to OFF and then back to ON
again.
E-FFIf the tape start and tape end are detected at the same
time either during or after loading, the AUTO OFF lamp
lights, and the message display blinks.
VTR:Stops.
• Set the POWER switch to OFF and then back to ON
again.
FRONT  LOAD
ERRORIf the take-up reel has turned without engaging the tape
for a specific period of time during the tape start or end
processing operation while loading is being performed
(at the half position), the AUTO OFF lamp lights, and
the message display blinks.
VTR: Stops.
• Set the POWER switch to OFF and then back to ON
again.