Panasonic Aj Sd255 Operating Instructions Manual

							41
Error messages (continued)
Monitor display    DescriptionVTR operation
E-20
DEW
If condensation is detected, the error number flashes and the
unit transfers to eject mode. The drum rotates after the
cassette is ejected to eliminate the condensation.
Once the unit is released from condensation status, the error
message display is cleared and the VTR is able to be used.
• If condensation is detected in the eject mode, the drum
starts rotating as soon as it is detected.
• If condensation is detected when the cassette has been
inserted, the drum rotation is stopped, and after the tape
is ejected, the drum starts rotating.Leave the power on and
wait.
E-29
FRONT LOAD
MOTORThe unit switches to eject mode and if the cassette fails to
move up within 6 seconds, this error number flashes on the
display.
Note:
If the cassette does not move down inside the machine
even when 6 seconds have elapsed since the cassette was
inserted, the VTR is transferred to the eject mode.Set the POWER switch
to OFF and then to ON
again.
E-31
LOADING 
MOTORIf the unloading operation is not completed within 6
seconds, this error number flashes on the display.
Note:
When the loading operation is not completed within 6
seconds, the VTR is transferred to the eject (unloading)
mode.Set the POWER switch
to OFF and then to ON
again.EJECT
STOP
STOP
E-35
SERVO CONTROL
ERRORIf there is no response from the servo microcomputer for 1
second or more, this error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-37
SERVO COMM
ERRORIf 10 seconds or more elapses and the servo
microcomputer has not followed orders issued by the
system control microcomputer, this error number flashes on
the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-51
FRONT LOAD
ERRORIf the take-up reel rotates without engaging for a specific
period of time during the start or end processing operation
while loading is underway (half position), this error number
flashes on the display.Set the POWER switch
to OFF and then to ON
again.
E-52
W-UP REEL
NOT ROTAIf the take-up reel fails to take up the tape while the tape is
traveling in the state where the total amount of the tape has
not yet been detected after the cassette was inserted, this
error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
STOP
Corrective action   
Error messages
E-00
(SERVO NOT
LOCKED)This appears when the servo is not locked for
three or more seconds during playback or
recording.Check the tape. It is
possible that a tape
recorded by a system
other than 525/60 has
been loaded.
E-01
(LOW RF)This appears when an envelope level
approximately one-third of the normal level has
been detected for more than one second during
playback or recording.Clean the video heads.
E-02
(HIGH ERROR
RATE)This appears when the error rate has increased to
the extent that correction or interpolation was
applied to either the video or audio playback
signals.Clean the video heads.Operation
continues.
Operation
continues.
Operation
continues. Monitor display    Description
PriorityVTR operationCorrective action   
(Low) 
						

							42
Error messages (continued)
E-64
S REEL ROTA
TOO FASTIf the supply reel motor speed is abnormally high, the error
number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-67
T REEL ROTA
TOO FASTIf the take-up reel motor speed is abnormally high, the error
number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-69
T REEL
TORQUE ERRIf excess torque being applied to the take-up reel motor is
detected, the error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-70
S REEL
TORQUE ERRIf excess torque being applied to the supply reel motor is
detected or an abnormal current flowing to the current
detection resistor is detected, this error number flashes on
the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-71
CAP TENSION
ERRORIf abnormal tension at the supply side is detected in the
capstan mode, the error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-72
REEL TENSION
ERRORIf abnormal tension at the supply side is detected in the reel
mode, the error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-73
REEL DIR
UNMATCHIf the take-up reel motor has rotated in the reverse
direction, this error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-74
DRUM TORQUE
ERRORIf excess torque being applied to the cylinder motor is
detected, this error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-78
M-IF COMM
ERRORIf a problem has been encountered in communication
between the servo microcomputer and mechanism relay
board, this error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP Monitor display    Description
VTR operationCorrective action   
Note:
Consult your dealer if the error message is still displayed even after restarting the unit.
E-59
DRUM ROTA
TOO SLOWIf the cylinder motor speed is abnormally low, this error
number flashes on the display.Set the POWER switch
to OFF and then to ON
again.
E-60
DRUM ROTA
TOO FASTIf the cylinder motor speed is abnormally high, this error
number flashes on the display.Set the POWER switch
to OFF and then to ON
again.
E-61
CAP ROTA
TOO SLOWIf the capstan motor speed is abnormally low, the error
number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
STOP
STOP E-57
S-FF/REW
TIMEOVERIf the start or end processing operation is not completed,
this error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP
E-55
UNLOAD ERRORIf the tape has not been taken up during unloading, this
error number flashes on the display.Set the POWER switch to
OFF and then to ON again.STOP E-53
WINDUP ERRORIf there is an abnormally large discrepancy between the
amount of tape taken up by the take-up reel and the
amount of tape supplied by the supply reel while the tape is
traveling after the total amount of the tape begins to be
detected, this error number flashes on the display.Set the POWER switch
to OFF and then to ON
again.STOP 
						

							43
Specifications
Power supply: AC 100 - 240 V, 50 / 60 Hz
Power consumption: 49 W
Operating ambient temperature:
5 °C to 40 °C (41 °F to 104 °F)
Operating ambient humidity:
10 % to 80 % (no condensation)
Weight: 
7.2 kg (15.84 lb)
Dimensions (W x H x D):
214 mm x 132 mm x 434 mm
(inches: 8 7/16 x 5 3/16 x 17 3/32) 
(excluding support legs and connectors)
Recording format:
DVCPRO/DV format selectable
Recording video signals:
For AJ-SD255P: 525i system 
For AJ-SD255E: 625i system 
Recording audio signals:
48 kHz, 16 bits, 2 channels
Recording tracks:
Digital video/audio
Helical track
Time code is recorded in the sub-code area.
Control (CTL): 1 track
Tape speed:
For AJ-SD255P 
33.820 mm/sec. (DVCPRO)
For AJ-SD255E
33.854 mm/sec. (DVCPRO)
Recording times:
184 minutes (with AJ-5P92LP)
66 minutes (with AJ-P66MP)
Tapes used: 
Metal tapes
FF/REW time:
Less than 3 min. (with AJ-5P92LP)
Less than 2 min. (with AJ-P66MP)
Digital slow: 
-0.43x to +0.43x (DVCPRO)
Tape timer accuracy: 
±1 frame (when using continuous CTL signal)
Servo lock time: 
Less than 0.5 sec. (When the format for 2F mode,
standby ON, or setup menu No. 122 (STOP EE SEL) is
set to TAPE)
VIDEO
Digital video
Sampling frequency:
Y:13.5 MHz; P
B/PR: 3.375 MHz
Quantizing: 
8 bits
Video compression method:
DV-Based compression (SMPTE 314M)
Video compression rate:
DVCPRO : 1/5
Error correction: 
Reed-Solomon product code
Bit rate:
DVCPRO : 25 Mbps
Digital IN/Analog Component OUT
Video bandwidth (when using AJ-YA94G option):
For AJ-SD255P
Y  : 30 Hz to 5.5 MHz (±1 dB),
5.75 MHz (–2 dB)
P
B/PR: 30 Hz to 1.3 MHz (±1 dB), 
1.5 MHz (–6 dB)
For AJ-SD255E
Y  : 25 Hz to 5.5 MHz (±1 dB),
5.75 MHz (–2 dB)
P
B/PR: 25 Hz to 1.3 MHz (±1 dB), 
1.5 MHz (–6 dB)
S/N ratio: 
Better than 58 dB (Y)
K factor:
Less than 1 % (Y 2T)
Y/P
B/PRdelay: 
Less than 10 nsec.
Video input signals
Analog component input:
BNC x 3 (Y, PB, PR) (also used as VIDEO IN connectors)For AJ-SD255P
Y  : 1.0 V[p-p]
P
B/PR: 0.486/0.7 V[p-p] selectable 
(75 Ω, 75 % color bar, 7.5 % setup level)
For AJ-SD255E
Y  : 1.0 V[p-p]
P
B/PR: 0.7 V[p-p] 
(75 Ω, 100 % color bar)
Analog composite input:
BNC x 1
VIDEO: 1.0 V[p-p] (75 Ω)
S-Video input:
BNC x 2 (Y, C) (also used as VIDEO IN connectors)
For AJ-SD255P
Y  : 1.0 V[p-p] (75 Ω)
C  : 0.286 V[p-p] (burst level) (75 Ω)
For AJ-SD255E
Y  : 1.0 V[p-p] (75 Ω)
C  : 0.3 V[p-p] (burst level) (75 Ω)
Reference input:
Analog composite, BNC x 2, loop-through, 75 Ω
ON/OFF automatically switched
SDI input (option: AJ-YA94G):
BNC x 1, 
Compliant with SMPTE 259M-C/ITU-R BT. 656-4 standard 
Video output signals
Analog component output:
BNC x 3 (Y, P
B, PR) (switchable between composite
and S-Video output)
For AJ-SD255P
Y  :  1.0 V[p-p]
P
B/PR: 0.486/0.7 V[p-p] selectable 
(75 Ω, 75 % color bar, 7.5 % setup level)
For AJ-SD255E
Y  : 1.0 V[p-p]
P
B/PR: 0.7 V[p-p] 
(75 Ω, 100 % color bar)
Analog composite output:
BNC x 2, VIDEO1, VIDEO2
S-Video output:
BNC x 2 (Y, C) 
(switchable between composite and component output)
For AJ-SD255P
Y  : 1.0 V[p-p] (75 Ω)
C  : 0.286 V[p-p] (burst level) (75 Ω)
For AJ-SD255E
Y  : 1.0 V[p-p] (75 Ω)
C  : 0.3 V[p-p] (burst level) (75 Ω)
SDI output (option: AJ-YA94G):
BNC x 1, 
Compliant with SMPTE 259M-C/ITU-R BT. 656-4 standardMonitor output: 
BNC x 1
indicates safety information.
GENERAL 
						

							44
Specifications (continued)
AUDIO
Digital Audio
Sampling frequency: 
48 kHz (synchronized with video)
Quantizing: 
16 bits
Frequency response: 
20 Hz to 20 kHz ±1.0 dB (at reference level)
Dynamic range: 
More than 85 dB (1 kHz, emphasis OFF, “A” weighted)
Distortion: 
Less than 0.1 % (1 kHz, emphasis OFF, reference
level)
Crosstalk: 
Less than –80 dB (1 kHz, between 2 channels)
Wow & flutter: 
Below measurable limits
Headroom: 
For AJ-SD255P: 20 dB
For AJ-SD255E: 18 dB
De-emphasis: 
T1=50 µsec., T2=15 µsec. (ON/OFF automatically
selected)
Audio input signals
Analog input (CH1, CH2):
XLR x 2, 600 Ω/high impedance selectable, 
+4/0/–20 dBu selectable
SDI input (option: AJ-YA94G):
BNC x 1, 
Compliant with SMPTE 259M-C/272M-A
/ITU-R BT. 656-4 standards
Audio output signals
Analog output (CH1, CH2):
XLR x 2, low impedance, +4/0/–20 dBu selectable
SDI output (option: AJ-YA94G):
BNC x 1, 75 Ω, 
Compliant with SMPTE 259M-C/272M-A
/ITU-R BT. 656-4 standards
Monitor output:
PHONO x 2, 600 Ω, –8 dBV
Headphone output:
M3, stereo, 8 Ω, variable level
Other Input/Output Connectors
IEEE1394 digital input/output (option: AJ-YAD255G):
IEEE1394, 6 pins x 1,
400/200/100 Mbps selectable
Compliant with IEEE1394-1995 standard
Compliant with IEC61883-Part 1, Part 2 
Compliant with SMPTE 396M
AV/C Command Set supported
Time code input:
BNC x 1, 0.5 to 8.0 V[p-p], 10 kΩ
Time code output:
BNC x 1, low impedance, 2.0 ±0.5 V[p-p]
RS-422A input/output:
D-sub 9-pin, RS-422A interface
Weight and dimensions when shown are approximately.
Specifications are subject to change without notice. Video adjustment ranges
Video output gain: 
±3 dB
Video output chroma gain: 
±3 dB
Video output HUE (chroma phase): 
±30 °
Video output setup level (black level): 
±14 IRE (±100 mV)
Video output sync phase: 
±15 µsec.
Video output SC phase: 
±180 ° 
						

							45
MEMO 
						

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