JVC SR-9090U - High Resolution 960 Hour Density User manual

PREPARATIONRECORDING
ON-SCREEN/MENU SWITCHES
INTRODUCTION
CONTROLS AND CONNECTORS
CONNECTIONS
PLAYBACK AND SPECIAL-EFFECTS PLAYBACK
TROUBLE- SHOOTING
APPENDIXES
OPTIONAL SA-K97U RS-232C INTERFACE BOARD
INSTRUCTIONS
VIDEO CASSETTE RECORDER
SR-9090U
SL96174
For Customer Use:
Enter below the Serial No. which is
located on the rear of cabinet. Retain
this information for future reference.
Model No. SR-9090U
Serial No.
Thank you for purchasing this JVC product.
Before operating this unit, please read
the instructions carefully to ensure the
best possible performance.
R
SR-9090U
REC
REC STOP REC
CHECK EJECT OPERATE
HDR
OPERATE
This instruction manual
is made from 100%
recycled paper.

2
SAFETY PRECAUTIONS
CAUTION ATTENTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN RISQUE D’ELECTROCUTION
NE PAS OUVRIR
INFORMATION
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interfer-
ence to radio communications. However, there is no guaran-
tee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and
receiver.
●Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
●Consult the dealer or an experienced radio/TV technician for
help.
CAUTION
CHANGES OR MODIFICATIONS NOT APPROVED BY JVC
COULD VOID USER’S AUTHORITY TO OPERATE THE
EQUIPMENT.
NOTE:
The rating plate (serial number plate) is on the rear of the unit.
ATTENTION: POUR EVITER TOUT RISQUE D’ELECTROCUTION
NE PAS OUVRIR LE BOITER.
AUCUNE PIECE INTERIEURE N’EST
A REGLER PAR L’UTILISATEUR.
SE REFERER A UN AGENT QUALIFIE EN CAS DE PROBLEME.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INDIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
This unit should be used with 120 V AC only.
CAUTION:
To prevent electric shocks and fire hazards, DO NOT
use any other power source.
AVERTISSEMENT:
POUR EVITER LES RISQUES D’INCENDIE OU
D’ELECTROCUTION, NE PAS EXPOSER
L’APPAREIL A L’HUMIDITE OU A LA PLUIE.
Ce magnétoscope ne doit être utilisé que sur du
courant alternatif en 120 V.
ATTENTION:
Afin d’éviter tout resque d’incendie ou
d’électrocution, ne pas utiliser d’autres sources
d’alimentation électrique.
REMARQUE:
La plaque d’identification (numéro de série) se trouve sur le
panneau arrière de l’appareil.
Cet appareil numérique respecte les limites de bruits
radioélectriques applicables aux appareils numériques de
Classe B prescrites dans la norme sur le matériel brouilleur:
“Appareils Numériques”, NMB-003 édictée par le ministre des
Communications.
This digital apparatus does not exceed the Class B limits for
radio noise emissions from digital apparatus as set out in the
interference-causing equipment standard entitled “Digital
Apparatus”, ICES-003 of the Department of Communications.
Le symbole de l’éclair à l’intérieur d’un triangle
équilatéral est destiné à alerter l’utilisateur sur la
présence d’une “tension dangereuse” non isolée
dansleboîtierduproduit.Cettetensionestsuffisante
pour provoquer l’électrocution de personnes.
Le point d’exclamation à l’intérieur d’un triangle
équilatéral est destiné à alerter l’utilisateur sur la
présence d’opérations d’entretien importantes au
sujet desquelles des renseignements se trouvent
dans le manuel d’instructions.
*Ces symboles ne sont utilisés qu’aux Etats-Unis.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is
intendedtoalerttheusertothepresenceofimportant
operatingand maintenance (servicing) instructionsin
the literature accompanying the appliance.
WARNING:
The battery used in the SR-9090U must be replaced by a JVC
authorized service dealer only.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC
RULES. OPERATION IS SUBJECT TO THE FOLLOWING
TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE
HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST
ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED OPERA-
TION.

3
SR-9080U
REC
REC STOP REC
CHECK EJECT OPERATE
REVERSE
FIELD REV FIELD ADV
REW PLAY
TRACKING TIMER SEARCH
RESET/
CANCEL
DISPLAY LOCK
HDR
CNTRESET MENU TIME MODE
SHIFT
ON SCREEN
OPERATE
V. LOCK
PAUSE FF
–+–+SET
–+
”
By engaging the operation lock system [LOCK], you can prevent accidental or deliberate interference with recording
operation or power supply.
When this function is activated, all operation buttons are disabled. However, you can still control the recorder with the
remote control.
OPERATION LOCK
1Engage the mode you want to lock (such as the Rec or Play mode).
2While pressing the [LOCK] button, press the [TIME MODE+/–] button. “LOCK” is shown on the display, indicating
that the Operation Lock mode is engaged.
3To unlock the VCR, press the [TIME MODE+/–] button while pressing the [LOCK] button. The “LOCK” indication on
the display disappears and the unit can now be operated normally.
To prevent unauthorized use, detach this page and keep it in a safe place.
[LOCK] button
“LOCK” indicator [TIME MODE+/–] button

4

5
CONTENTS
1 INTRODUCTION
1-1 Major Features ............................................. 6
1-2 Periodical Maintenance ................................ 7
1-3 Precautions .................................................. 7
1-4 Daily Inspection............................................ 8
2 CONTROLS AND CONNECTORS
2-1 Front Panel................................................... 9
2-2 Display ....................................................... 11
2-3 Rear Panel ................................................. 12
3 CONNECTIONS
3-1 Connecting to a Camera ............................ 14
3-2 System Using Sequential Switcher ............15
3-3 Connecting the Rear Panel Input/Output
Terminal Connections ................................ 16
4 ON-SCREEN/MENU SWITCHES
4-1 On-Screen Display ..................................... 17
4-2 Main Menu Display..................................... 18
4-3 Date and Time Setting ............................... 19
4-4 Hour Meter Display .................................... 20
4-5 Alarm Input/Power Loss Data Display ........21
4-6 Menu Switch Setting .................................. 22
4-7 Contents of Menu Switches........................23
5 PREPARATION
5-1 Cassette Loading/Unloading ......................27
5-2 Recording/Playback Speed Mode
Selection .................................................... 28
6 RECORDING
6-1 Switch Setting During Recording................29
6-2 Recording Basic Operation ........................ 30
6-3 Timer Recording......................................... 31
• Timer Recording Program Setting...........31
• Holiday Timer Recording Setting.............35
• Canceling/Changing Timer Recording
Program .................................................. 36
• Notes on Timer Recording ......................37
6-4 Alarm Recording ........................................ 38
6-5 Sensor Recording ...................................... 40
6-6 Series Recording........................................ 41
6-7 Repeat Recording ...................................... 43
6-8 Recording with External VCR Activation
Signal ......................................................... 44
6-9 How to Restore Recording After Power
Failure ........................................................ 45
6-10 External Timer Recording........................... 45
6-11 Tape End Buzzer ....................................... 45
7 PLAYBACK AND SPECIAL-EFFECTS
PLAYBACK
7-1 Preparation................................................. 46
7-2 Playback..................................................... 46
7-3 Special-Effects Playback ........................... 47
• Still/Field Advance/Reverse Playback.....47
• Shuttle Search......................................... 48
7-4 Alarm Search/Date and Time Search.........49
7-5 Repeat Playback ........................................ 51
7-6 Counter Memory Function.......................... 51
7-7 Tracking/V. Lock Adjustment...................... 52
7-8 V. Pulse...................................................... 52
8 TROUBLESHOOTING
8-1 Error Indications ......................................... 53
8-2 No Error Indication ..................................... 54
9 OPTIONAL SA-K97U RS-232C INTERFACE
BOARD
9-1 Installation of the SA-K97U ........................55
9-2 SA-K97U Specifications ............................. 56
9-3 SA-K97U RS-232C Protocol &
Commands................................................. 57
10 APPENDIXES
10-1 Tape Reel Counter/Tape Remaining Time
Table .......................................................... 64
10-2 Rear Panel’s Inputs/Outputs ......................65
10-3 Specifications ............................................. 66
JVC is not liable for compensation for loss or damage
to recordings in the event this unit fails to record or play
back properly because the unit malfunctions or a
defective video cassette tape is used.
Please note that it may be unlawful to use any material
recorded from TV broadcast programs or pre-recorded
programs without the consent of the owner of
copyright, except in cases where this material is
recorded exclusively for personal use.
The SR-9090U is a video cassette recorder able to execute
timelapse recording with VHS cassettes.
Use only video cassettes bearing the mark.
This unit is designed for professional use.

6
1-1 Major Features
1 INTRODUCTION
5Extended timelapse recording for up to 960 hours
Recording times are selectable from 2 hours (SP mode),
6 hours (EP mode) and 24/48/72/120/168/240/480/960
(Timelapse mode) (when T-120 tape is used).
5High-resolution recording
Delivers horizontal resolution of more than 400 lines
even in color mode.
*When a tape recorded on this unit is played back on
another VCR, noise may appear on playback picture.
5High-density recording (HDR) function
Using the EP head, the tape is advanced at a fine pitch
for timelapse recording. In this way, about three times
more information is recorded in the same period than in
conventional timelapse modes. While this results in
some degradation of picture quality, the increased
coverage allows you to analyze the development of a
situation in greater detail. The actual recording duration
on the tape is the same as that of an ordinary timelapse
recording (select with menu switch <HDR>).
5Alarm recording function
When an alarm signal is input in the Record mode, the
2/6-hour mode is automatically engaged. Alarm
recording time can be selected from 5, 10, 15, 30, 60,
120, or 180 sec., to tape end, or set manually.
An index code is automatically recorded at the start
point of the alarm recording for use as an alarm cue
signal. Alarm recording points can be accessed quickly
with the alarm search function.
5Sensor recording
Whenever an alarm signal is input in the Stop mode
(Stop, Timer Recording Standby or Operating Off
mode), the Record mode is automatically engaged.
5Time/date generator
Superimposes date, month, year, hour, minute and
second on the image during recording. Also allows you
to display the number of alarms, alarm time, and the
number of the power failures on a monitor.
5Timer-recording function
Up to 8 programs can be set for daily, weekly, or
weekday timer-recording. You can also set timer
recording for up to 16 days a year by specifying the date
(holidays, for example).
5Tape position search function
You can automatically search the start of an alarm
recording or search for a recording made at a specified
date and time.
5Recording check function
Recording conditions (quality) can be checked at any
time during recording by pressing the recording check
button.
5Operation lock system
The secret operation lock system prevents an accidental
or deliberate interference with VCR operation.
5Camera switching signal output terminal
5Warning function
Error indications are shown on the front panel display.
Error warnings include condensation and problems with
cassette loading, cassette unloading, or the rotating
system operation mode.
5Operating mode-off video throughout function
Even when the operating mode is off, the camera’s EE
input can be output from the VCR.
5Series recording function
Two or more SR-9090U can be connected for extended,
long-term series recording. As the tape in each VCR
reaches the end, the next unit in the series will
automatically start recording.
5Automatic re-start of recording after a power failure
5Time adjust function
With the IN/OUT terminal for time adjustment, the time
difference can be set to “0” with multiple SR-9090Us
connected. (adjustment time: 00:00/12:00)
5Digital hour meter display
5Repeat playback/recording
5Alarm recording, tape end and warning electronic
buzzer
5Recording control with external activation signal
5Counter end function
5External timer connection
5Summer time compensation function
5Wired remote control (optional)
Used when an optional SA-K97U RS-232C interface
board is installed.
5RS-232C control
The SR-9090U can be controlled via a personal
computer. Operation status can be monitored on the
computer.

7
This VCR incorporates precision mechanical parts which will collect dirt over time and ultimately deteriorate and wear out.
Over long periods of use, dirt and dust accumulates on the heads, drums and tape transport mechanisms. Dust which
penetrates the VCR (especially during outdoor use) also promotes the wear and deterioration of mechanical parts by causing
poor contact between tape and heads. This also prevents the VCR from maintaining video and audio quality at high levels.
To prevent wear and deterioration, clean the heads regularly using a head cleaning tape. However, because a head cleaning
tape alone cannot clean the entire tape transport mechanism, this should also be inspected periodically to prevent any
problems that could result from a sudden failure.
As replacement and adjustment of parts require advanced skills and specialized equipment, please contact the person in
charge of professional video equipment at your nearest JVC-authorized service agent for servicing.
1-2 Periodical Maintenance
Monitoring Usage Time
The total operation time reached by an ordinary home VCR
in 5 or 6 years may be reached by a professional VCR in
as few as 5 or 6 months. Therefore, it is important that the
total hours of operation be carefully monitored. An hour
meter in the on-screen display (see page 20) shows the
accumulated time. In the chart below, the hours
accumulated in each month are shown in relation to the
number of hours used per day. Times shown in the shaded
area indicate that maintenance should be performed.
Running time 1000H 2000H 3000H 4000H
Drum ass’y (including heads) ^VVv
Pinch rollers ^VVv
Drive parts ^^ ^ V
1-3 Precautions
5Condensation
When cold beer is poured into a glass, water drops
appear on the glass’s surface. This phenomenon is
called “condensation”. When condensation occurs on
the VCR’s head drum and tape guides it may damage
the tape.
5Condensation occurs in the
following cases:
• When the VCR is moved from a
cold place to a warm place.
• In a room that has just been heated
or in an area directly exposed to a
cooler.
• When there is excessive humidity.
Condensation
5When condensation is expected to occur
Turn the power of the VCR on before use.
5If condensation has occurred
The VCR automatically ejects the cassette and the error
indication “E-08” blinks on the display. Operation is
disabled until the “E-08” indication on the display goes out.
Periodic Maintenance
Check or replace the following mechanical parts according
to the running time.
Head drum
Video tape
1 INTRODUCTION
^: Cleaning
V: Check or replace as required.
v: Replace
• Maintenance requirements may vary depending on the
operating environment and usage. The information
above should be used as a reference guide.
Replace the built-in lithium battery approximately every
two years.
SR-9090U
REC
REC STOP REC
CHECK EJECT OPERATE
REVERSE
FIELD REV FIELD ADV
REW PLAY
TRACKING TIMER SEARCH
RESET/
CANCEL
DISPLAY LOCK
HDR
CNTRESET MENU TIME MODE
SHIFT
ON SCREEN
OPERATE
V. LOCK
PAUSE FF
–+–+SET
–+
Usage 1 month 2 months 3 months 6 months 12 months
time per
day
2 hours 60 120 180 360 720
8 hours 240 480 720 1440 2880
12 hours 360 720 1080 2160 4320
24 hours 720 1440 2160 4320 8640
Handling and storage place
5Avoid using the unit in places subject to the
following conditions:
• extreme heat or cold
• strong magnetic fields (do not use a transceiver within 2
meters of this unit)
• high humidity
• dust and soil
• vibrations
• variations in temperature
5Use this unit in horizontal (flat position) only.
5To avoid overheating the unit, do not block
ventilation slots or stack the units. If the internal
temperature rises too high, the tape may be
damaged.
5Do not leave the unit in the Still or Record Pause mode
for a long time as this may damage the tape.
After about 3 minutes, this unit automatically enters the
Stop mode.
5Handle the unit carefully
• Do not place anything heavy on the unit (a monitor,
etc.). A malfunction may occur.
• Do not put any foreign substance into the cassette
loading slot.
• Avoid violent shocks to the recording chassis during
transportation. Remove the cassette tape from the unit
for transportation.
5Turn off the power to save electricity when not
using the unit.

8
1-3 Precautions
Video cassette
Although this unit has been designed for reliable operation
over a long period of time, a daily inspection is
recommended to ensure optimum performance. In
particular, be sure to check the repeat recording/playback
function on a daily basis.
Inspection procedure
1Turn on the power for all units connected to the
surveillance system.
2Check the quality of the image shown on the monitor.
3Check that the date and time shown on the monitor are
correct.
4Rewind the tape recorded the previous day for several
seconds.
5Press the play button for playback.
6Check that the playback picture is normal.
7Check that the recorded date and time are correct.
5This unit includes a Recording Check function (using the
[REC CHECK] button). Use these features to quickly
check recording quality on a daily basis.
1-4 Daily Inspection
Erasure prevention tab
• Only use video cassette bearing the mark.
• To prevent accidental erasure of a recorded tape, break
the erasure prevention tab on the cassette. To use a
cassette with a broken tab, place a piece of cellophane
tape over the broken tab.
• Video cassettes cannot be used upside down.
• Leaving the tape in a partially wound condition for a long
time may damage the tape. Rewind the tape to the
beginning before storage.
To obtain the best picture quality, use an HG (high
grade) tape (a JVC cassette is recommended).
Degradation of picture quality may result with some
types of tape. Make a test recording before
performing any important recording to check the
picture quality.
1 INTRODUCTION
Timelapse recording is performed over very
long periods of time which means that a
durable tape is required.
When using VHS tapes, do not use tapes with
recording times of more than 120 minutes
(T-160/T-180 etc.).
For best results, use a T-120 tape.
If any problems are found after inspection, turn the
power off, unplug the power plug from the AC outlet,
and contact your JVC dealer.

9
2-1 Front Panel
2 CONTROLS AND CONNECTORS
1[OPERATE] button
PresstoturntheoperatingmodeON/OFF.Whenthisbutton
isON,the OPERATE indicator tlights and the unit can be
operated. When a cassette is loaded, operating mode is
switchedonandtheOPERATEindicatorlightsautomatically.
The OPERATE button does not completely shut off the
mainspowertotheunit,butswitchestheoperatingcurrent
on and off.
2[EJECT] button
Press to eject the cassette.
* The cassette cannot be ejected during recording.
3[REC] indicator
Thisindicator lights during recording ifmenuswitch <REC
TALLY> on the <F. DISP> screen is set to “ON”.
4Cassette loading slot
Insert a cassette in this slot. Use a VHS cassette tape.
5[REC CHECK] button
Use this button to check recording.
WhenpressedintheRecordmode,theVCRwillrewindthe
tape for about 5 seconds of tape time and then play back
therewoundsection inthe2H/6Hmodetocheckrecording
quality.Recordingisresumedautomaticallyafterplayback
at the point where recording was interrupted.
• If picture quality is judged to be inferior during recording
check,theheadsarecleanedautomaticallyandtheerror
code“E-09”isshownonthedisplayforabout10seconds.
Recording will continue regardless of the results of the
recording check.
6[STOP] button
Press this button to stop the tape.
7[REC] button
PressthisbuttonintheStopmodetoengagetheRecordmode.
8[REW] button
• Press this button to rewind the cassette.
• Startsreverseplaybackwhenpressedin the Play mode.
• Starts reverse alarm search or date/time search when
the Search mode is specified with the ^[SEARCH] button.
• Alsocontrolsfield-by-fieldplaybackinthereversedirection.
9[REVERSE] button
Startsreverseplaybackwhenpressedinanymodeexcept
Record, Record-Pause and Record Check.
0[PAUSE] button
• Engages the Record-Pause mode when pressed in the
Record mode.
• Displays a still picture when pressed in the Play mode.
• Fieldadvanceorreverseplaybackisexecutedeachtime
the [FF] or [REW] button is pressed while pressing this
button in the Still mode. (When the [FF] or [REW] button
is pressed for more than 2 seconds, Continuous Field
Advance Playback mode is engaged. After about 3
minutes, the Stop mode is engaged.)
![PLAY] button
• Press to play back the tape.
• Press to engage the Record mode in the Rec-Pause
mode.
@[FF] button
•Press to fast-forward the tape.
• Starts fast-forward playback when pressed in the Play
mode.
• Startsforwardalarmsearchordate/timesearchwhenthe
Search mode is specified with the ^[SEARCH] button.
• Alsocontrolsfield-by-fieldplaybackintheforwarddirection.
#[TRACKING +/–] buttons
Ifpicturenoiseappearsduringplayorfieldadvance,press
these buttons to adjust tracking so that noise is reduced.
When the [+] and [–] buttons are pressed simultaneously,
tracking is reset to the preset level.
$[V. LOCK +/–] buttons
Press to reduce vertical picture jitter in the Still, Field
AdvancePlaybackandLinearSlowTimelapsePlay modes.
%[TIMER] button
Normally use this button for timer recording. For details,
refer to “Timer Recording” on page 31.
2
3
1
7 6 5 4
1514
131211
1098
SR-9090U
REC
REC STOP REC
CHECK EJECT OPERATE
REVERSE
FIELD REV FIELD ADV
REW PLAY
TRACKING TIMER SEARCH
RESET/
CANCEL
DISPLAY LOCK
HDR
CNTRESET MENU TIME MODE
SHIFT
ON SCREEN
OPERATE
V. LOCK
PAUSE FF
–+–+SET
–+

10
2-1 Front Panel
w[TIME MODE/SET +/–] buttons
• Use to select the recording and playback speed mode.
Available recording/playback speed modes vary
depending on the setting of menu switch <HDR> on the
<VTR MODE> screen.
Each time these buttons are pressed, the recording/
playbackspeedmodechangesasfollows. Therecording/
playback speed mode is shown on the display.
HDR recording: OFF HDR recording: ON
2H: Standard 2H: Standard
6H: 3x 6H: 3x
24H: 24-hour SP timelapse 24H: 24-hour EP timelapse
48H: 48-hour SP timelapse 48H: 48-hour EP timelapse
72H: 72-hour SP timelapse 72H: 72-hour EP timelapse
120H: 120-hour SP timelapse 120H: 120-hour EP timelapse
168H: 168-hour SP timelapse 168H: 168-hour EP timelapse
240H: 240-hour SP timelapse 240H: 240-hour EP timelapse
480H: 480-hour SP timelapse 480H: 480-hour EP timelapse
960H: 960-hour SP timelapse 960H: 960-hour EP timelapse
• Also use these buttons during date/time setting, timer
programsettingandmenuswitchsettingtospecifysetting
values.
e[ON SCREEN/SHIFT 7/t] buttons
• Use these buttons on the normal screen to move the
display position or recording position of on-screen
information. Thepositioncanbemoveddownbypressing
the 7button and to the right by pressing the tbutton.
• Use these buttons on the menu screen to select the desired
item in date/time setting, timer program setting and menu
switch setting.
rDisplay section
For details, refer to page 11.
t[OPERATE] indicator
Lights when the [OPERATE] button is turned on.
y[HDR] indicator
Lights in the HDR recording and HDR playback modes.
* HDR: High Density Recording
• For details on HDR recording, refer to page 28.
^[SEARCH] button
Use to search the alarm recorded section or a section
recorded at a specified date and time. In the Stop mode,
select the search mode by pressing this button.
• Press once to engage the Alarm Search mode.
• Press twice to engage the Alarm Scan mode.
• Pressthreetimestoengage theDate/TimeSearchmode.
• Press four times to release the search mode.
After the search mode is selected with this button, press
the[FF] or [REW]buttonto execute thesearchoperation
in the selected mode.
For details, refer to page 49.
&[DISPLAY] button
Selects which data — current time, control tape counter
(00H00M00S— 23H 59M 59S) or reel tape counter (0 —
9999)—isdisplayed. Eachtimethisbuttonispressed,the
display switches to the next item.
*[LOCK] button
Press to activate the operation lock function.
([CNT RESET] button
Whenthedisplayshowsthecontroltapecounterorreeltape
counter,pressthisbuttonto resetto“00H00M00S”or“0000”.
)[RESET/CANCEL] button
• In the Timer Program Setting mode, press this button to
cancel the program settings. For details, refer to “Timer
Recording” on page 36.
• Also press this button to interrupt alarm recording or to
reset the alarm input data or power loss (power failure)
data. For details, refer to pages 21 and 39.
• Resets the seconds in the currently displayed time to 00
when pressed together with the ([CNT RESET] button
(except in menu setting mode).
-Whenthesecondsvalueis29orless,theminutesvalue
is the same but the seconds value is reset to 0. (eg.
12:34:29 [12:34:00)
-Whenthesecondsvalueis30ormore,thesecondsvalue
isresetto“00”andtheminutesvalueisincreasedbyone.
(e.g. 12:34:30 [12:35:00)
q[MENU] button
Presstodisplaythedate/time,timerprogram,andvariousother
menu setting screens, as well as the hour meter, on the
monitor. Pressagaintocancelthemenuorhourmeterdisplay.
2 CONTROLS AND CONNECTORS
24 25 26
22 23
20
19181716
SR-9090U
REC
REC STOP REC
CHECK EJECT OPERATE
REVERSE
FIELD REV FIELD ADV
REW PLAY
TRACKING TIMER SEARCH
RESET/
CANCEL
DISPLAY LOCK
HDR
CNTRESET MENU TIME MODE
SHIFT
ON SCREEN
OPERATE
V. LOCK
PAUSE FF
–+–+SET
–+
21

11
2-2 Display
2 CONTROLS AND CONNECTORS
2 3 45
1 6 78913 11
10 12 13
1Operation mode display
Shows the operation modes.
Playback Recording Rewind Fast-
forward Timelapse
playback
Still Record-
pause Rewind search
Fast-forward
search
Reverse
playback
5Recording/playback speed display
• Normally shows the recording/playback speed mode set
with the [TIME MODE] button.
• Shows the following indications in the Alarm Search
mode.
Duringalarmsearch: Showsthespecifiedalarmnumber
(example: AL12)
Duringalarmscan:Showsthealarmscan mode(ALSC).
During date/time search: Shows the specified date and
time (example 2310).
• Shows setting details in menu switch setting.
• Whenan error occurs,theerror indication “E-**”blinks(if
the menu switch <WARNING> on the <F. DISP> screen
is set to “ON”).
For error indications, refer to page 53.
6[TIMER] indication
Lights during timer recording programming/operation.
7[REPEAT] indication
When <REPEAT REC> in the <VTR MODE> menu is set
to “ON”, this indication is shown. When <TAPE END
MODE> in the <ALARM/SENSOR MODE> menu is set to
“STOP” and the Repeat Record mode is engaged, the
[REPEAT]indicationgoes out if alarm recording or sensor
recording takes place.
8[OVERLAP] indication
Blinkswhenprogramsscheduledfortimerrecordingoverlap.
9Timer program number
All programmed timer recording numbers light.
During timer recording, the number of the program being
recorded blinks. When the timer recording ends, this
number goes out.
0[AL] (alarm) indication
Shown during alarm recording or sensor recording.
Blinks when alarm recording or sensor recording ends.
![LOCK] indication
Lights when the operation lock function is activated.
@[AL REC] (alarm recording) indication
Lightswhenthemenuswitch<RECMODE>onthe<ALARM/
SENSOR MODE> screen is set to “ALARM” or “ALL”.
#[SENSOR REC] (sensor recording) indication
Lightswhenthemenuswitch<RECMODE>onthe<ALARM/
SENSOR MODE> screen is set to “SENSOR” or “ALL”.
* ( ) mark in the Rec/Pause mode is shown in red.
2Cassette indication
Lights when a cassette is loaded. Blinks when a cassette
is being ejected.
3[SP/EP] indication
Shows the standard (SP) mode or extended (EP) mode
during recording/playback. During ordinary timelapse
recording/playback, the [SP] indication is shown.
The [EP] indication is shown during recording in the HDR
(High-Density Record) mode or during playback of a tape
section recorded in the HDR mode.
4Tape counter/clock indication
• Shows the current time (hour: minute: second), tape
control counter (00H 00M 00S — 23H 59M 59S) or tape
reel counter (0 — 9999) when the operating mode is on.
The display can be selected with the [DISPLAY] button.
Shows the current time when the operating mode is off.
When a cassette is ejected, the tape control counter and
tape reel counter are reset automatically.
• When the cassette is rewound to the beginning in the
RepeatRecordingorAutoRewindmodeusingthecounter
end output function, the tape control counter and tape
reel counter are reset.
• ThecontrolandreelcountercountsslowlyintheTimelapse
mode.
• Inthetimelapsemode,thecontrolcountershowsthetime
equivalenttothatshownwhenatapeisplayedbackinthe
2H or 6H mode.
(Example: The control counter advances 1 second for
about 8 minutes in the 960H ordinary timelapse mode.)
• During date/time search setting and operation, “td” is
shown in place of the seconds.
• Shows the setting item during menu switch setting.

12
2-1 FRONT PANEL
2-3 Rear Panel
9[Y/C OUT] connector (4 pin)
Outputs separate Y/C signals.
0Signal ground terminal
This ground terminal is not provided for safety purposes.
It is used to ground signals. Connect this terminal to
ground the signal between VCRs.
![CAM SW OUT] camera switching signal output
terminal
When a sequential switcher is connected, this terminal
outputs camera switching timing control signals. For
details on these signals, refer to page 65.
@[COM] common ground terminal
Connect to the signal ground terminal of a connected
unit.
#[ALARM IN] alarm signal input terminal
Receives signals to start alarm or sensor recording.
$[ALARM RESET] alarm signal reset input terminal
Receives signals to cancel alarm recording.
* Alarm input data is not reset.
%[ALARM REC OUT] alarm recording mode signal
output terminal
Outputs +12 V signals during alarm recording.
1[AC IN] connector
Connect to an AC 120 V, 50/60 Hz power outlet using
the provided AC power cable.
2[REMOTE] remote connector (RCA)
Connect the optional RM-G30U remote control.
3[MIC IN] mic input connector
Connect a microphone with 3.6-mm dia. plug. When
signals are input from both the microphone connector
and the audio input connector, audio signals are mixed
and recorded.
4[AUDIO IN] audio input connector (RCA)
Receives audio signals from a connected audio source.
5[AUDIO OUT] audio output connector (RCA)
Outputs audio signals. No signal is output in the
Timelapse Recording/Playback mode.
6[VIDEO IN] video input connector (BNC)
Receives composite video signals from a connected
camera or other video source.
• For composite video signal input, set the <INPUT>
menu switch in <VIDEO MODE> to LINE.
7[VIDEO OUT] video output connector (BNC)
Outputs composite video signals. Even when the power
is not supplied to this unit, input signals (composite
video signals) from a camera can be output through this
connector (Operating mode-Off Video Throughout
function).
8[Y/C IN] connector (4 pin)
Inputs separate Y/C signals.
• For separate Y/C signal input, set the <INPUT> menu
switch in <VIDEO MODE> to Y/C.
2 CONTROLS AND CONNECTORS
AC~IN
AC120V~50/60Hz
RS-232C
CAM SW
OUT ALARM
IN
COM
COM
ALARM
REC OUT
ALARM
RESET TAPE
ENDOUT WARNING
OUT
CLOCK
RESET IN SERIES
REC IN
SERIES
REC OUT
CLOCK
RESET OUT
CAM SW
OUT ALARM
IN
COM
COM
ALARM
REC OUT
ALARM
RESET TAPE
ENDOUT WARNING
OUT
CLOCK
RESET IN SERIES
REC IN
SERIES
REC OUT
CLOCK
RESET OUT
15
1413
1211
64
35710
2
1
8
9
20
1918
17
22
21
16
REMOTE
MIC IN
OUT
AUDIO VIDEO
Y/C

13
2-3 Rear Panel
2 CONTROLS AND CONNECTORS
^[TAPE END OUT] tape end signal output terminal
Outputs a signal when the tape ends during recording.
If the menu switch <CNT TAPE END> on the <SRI/EXT
MODE> screen is set, signals are output when the
specified tape reel counter value is exceeded.
• Outputs a +12 V signal during recording. When the
tape ends or the specified counter value is passed,
a 0 V (GND level) signal is output.
• When the tape ends during auto repeat recording or
auto rewind recording, 0 V signal is output for about 2
seconds.
• Connect an external alarm or buzzer via an external
interface.
• To cancel the output, press the [EJECT] button,
[PLAY] button, [FF] button or [REW] button.
&[COM] common ground terminal
Connect to the signal ground terminal of a connected
unit.
*[WARNING OUT] warning signal output terminal
Outputs warning signals (+12 V) when a tape running or
mechanism problem occurs.
([CLOCK RESET IN] clock reset input terminal
Connect to a master clock or another SR-9090U’s
[CLOCK RESET OUT] terminal. When the clock reset
signal is input, the time is automatically synchronized
with the master clock or another SR-9090U’s clock.
However, the time difference between VCRs should be
within ±30 seconds.
When the clock reset signal is input, the clock in this unit
is reset as shown below.
• When the seconds value is 29 or less, the minutes
value is the same but the seconds value is reset to 0.
(eg. 12:34:29 —> 12:34:00)
• When the seconds value is 30 or more, the second
value is reset to 00 and the minutes value is increased
by one. (e.g. 12:34:30 —> 12:35:00)
)[CLOCK RESET OUT] clock reset output terminal
Outputs the clock reset signal.
The clock reset signal is output in the following cases.
• When the internal clock is at 0:00 or 12:00
When this unit is connected to another SR-9090U’s
[CLOCK RESET IN] terminal, the other VCR’s clock
can be set to the clock in this unit. However, the time
difference should be within ±30 seconds.
q[SERIES REC IN] series recording/VCR activation
signal input terminal
Receives series recording signal or VCR activation
signal from an external control device.
Select the input signal with the menu switches in the
<SRI/EXT MODE> menu.
5Series recording input
A series recording signal is input when [SRI/EXT
REC] is set to “SERIES”.
• Connect to another VCR’s series recording signal
output terminal.
• When the tape in the preceding VCR ends, a signal
is delivered to this terminal and recording starts
automatically.
When the menu switch <CNT TAPE END> on the
<SRI/EXT MODE> screen is set, the signals are
delivered when the specified tape reel counter
value is reached. Recording starts automatically.
5VCR activation signal input
When [SRI/EXT REC] is set to “EXT”, recording is
started and stopped with an external signal.
• Connect to an external control device.
If a VCR activation signal (ground input) is input to
this terminal, the VCR starts recording
automatically and continues recording for as long
as the VCR activation signal is input.
w[SERIES REC OUT] series recording signal output
terminal
Outputs series recording signals.
A series recording signal is output when [SRI/EXT REC]
is set to “SERIES”.
• Connect to another VCR’s series recording signal
input terminal.
• Outputs a signal when the tape being recorded in this
unit ends.
When the menu switch <CNT TAPE END> on the
<SRI/EXT MODE> screen is set, the signals are
output when the specified tape reel counter value is
reached.

14
CCD
AC~IN
AC120V~50/60Hz
RS-232C
CAM SW
OUT ALARM
IN
COM
COM
ALARM
REC OUT
ALARM
RESET TAPE
ENDOUT WARNING
OUT
CLOCK
RESET IN SERIES
REC IN
SERIES
REC OUT
CLOCK
RESET OUT
REMOTE
MIC IN
OUT
AUDIO VIDEO
Y/C
3-1 Connecting to a Camera
3 CONNECTIONS
Microphone
COM ALARM IN
1Connect the monitor’s video/audio input connectors to the SR-9090U’s video/audio output connectors.
2Connect the video camera’s video output connector to the SR-9090U’s video input connector.
3Input audio signals to the audio input connectors via an amplifier.
4When connecting an alarm sensor, connect it to the SR-9090U’s alarm input terminal.
5When the connection is complete, connect the power plug to an AC 120 V, 50/60 Hz outlet.
Provided
power cord
M3.5 mini-
jack
Alarm sensor
AC 120 V
50/60 Hz
Video camera
Microphone
Amplifier
Monitor TV
RCA
RCA BNC
BNC 4pin
4pin

15
CCD
CCD
CCD
CCD
CCD
CCD
1 2 3 4 5 6
1 2 3 4 5 6
AC~IN
AC120V~50/60Hz
RS-232C
CAM SW
OUT ALARM
IN
COM
COM
ALARM
REC OUT
ALARM
RESET TAPE
ENDOUT WARNING
OUT
CLOCK
RESET IN SERIES
REC IN
SERIES
REC OUT
CLOCK
RESET OUT
REMOTE
MIC IN
OUT
AUDIO VIDEO
Y/C
3-2 System Using Sequential Switcher
Video camera
Alarm sensor input
Alarm sensor
Microphone
Alarm signal output
Camera switching
signal input
Sequential switcher
Amplifier
AC 120 V
50/60 Hz
3 CONNECTIONS
Video output
Monitor TV
Provided
power cord
BNC
BNC
RCA
RCA
4pin
1Connect video cameras and alarm sensor to a sequential switcher (frame switcher).
2Connect the sequential switcher’s (frame switcher) alarm signal output, camera switching signal input and video output to
the SR-9090U.
3Connect the monitor’s video/audio input connectors to the SR-9090U’s video/audio output connectors.
4When the connection is complete, connect the power plug to an AC 120 V, 50/60 Hz outlet.
5Synchro should be applied to all connected video cameras.
6If you are connecting the camera switching signal input from a sequential switcher (frame switcher) to the SR-9090U, be
sure to set the <CAMERA SW> menu switch.
CAM SW
OUT ALARM IN

16
3-3 Connecting the Rear Panel Input/Output Terminal Connections
[CAM SW OUT] camera switching signal output terminal [ALARM IN] alarm signal input terminal
[ALARM RESET] alarm reset terminal [ALARM REC OUT] alarm recording mode signal output terminal
[CLOCK RESET] clock reset terminal
5When setting the clock to the first VCR’s clock
5When setting the clock to the external master clock
External interface example
Example: Lamp lights with HIGH signal
5Use appropriately rated devices.
ALARM COMIN
Sequential switcher
alarm output
terminal
ALARM
REC OUT COM
Switch
ALARM
RESET
External
interface
Alarm
lamp
COM
Vcc: 5V–12V
Vcc
ALARM
RESET
Switch
COM
CAM SW
OUT
Sequential switcher
camera switching
signal input
[TAPE END OUT] tape end output terminal [WARNING OUT] warning signal output terminal
COM
WARNING
OUT
External
interface
Alarm lamp
COM
TAPE
END OUT
External
interface
Alarm lamp
Relay
(Lamp, etc.)
Power
supply
Control
signal
GND
COM
CLOCK
INCOM
CLOCK
OUT
First VCR Second VCR Last VCR
COM
CLOCK
IN
3 CONNECTIONS
COM
CLOCK
IN COM
CLOCK
IN COM
CLOCK
IN
First VCR Second VCR Last VCR
External
master clock

17
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SR-9090U
REC
REC STOP REC
CHECK EJECT OPERATE
REVERSE
FIELD REV FIELD ADV
REW PLAY
TRACKING TIMER SEARCH
RESET/
CANCEL
DISPLAY LOCK
HDR
CNTRESET MENU TIME MODE
SHIFT
ON SCREEN
OPERATE
V. LOCK
PAUSE FF
–+–+SET
–+
RESET/
CANCEL
MENU TIME MODE
SHIFT
ON SCREEN
SET
–+
4 ON-SCREEN/MENU SWITCHES
4-1 On-Screen Display
Displays the time date (date and time), recording speed, number of alarms and number of power losses (power failures) on
screen in the Stop mode, Record mode and Record-Pause mode.
During recording, the on-screen data is recorded together with video signals.
• The on-screen display position can be moved with the [ON SCREEN] buttons.
• The type of data shown and display brightness can be selected on the <ON SCREEN /F. DISP MODE> screen.
[ON SCREEN t] button
[ON SCREEN 7] button
Preparation
5Connect the video output connector of this unit to the
monitor’s video input connector.
1Turn on the monitor and VCR.
2When a video signal from a camera is input to the video
input connector, on-screen data is superimposed on the
picture.
When there is no input signal, on-screen data is shown
on a black background.
Changing the on-screen display position
5Move horizontally.
Press the [ON SCREEN t] button.
[The display position is moved to the right
5Move downward.
Press the [ON SCREEN 7] button.
[The display position is moved down.
Selecting the data display
The data displayed on-screen can be selected on the <ON
SCREEN MODE> screen.
Set the <ONSCREEN/F. DISP MODE> setting to “ON”.
5When you do not want to display or record on-screen
data, set the corresponding menu item to “OFF”.
Changing the on-screen display brightness
Set the brightness with the menu switch <TONE> on the
<ON SCREEN MODE> screen. Select 0, 30, 70 or 100.
• The higher the number, the brighter the characters.
* For details on menu operation, refer to page 22.
Date (month,
day, year)
Number of
alarms Number of
power losses
(power
failures)
Recording speed (ALARM
indication during alarm/
sensor recording)
Time (hour,
minute, second)
On-screen display
[ON SCREEN t] button
[ON SCREEN 7]
button
ON SCREEN MODE screen
Display items

18
SR-9090U
REC
EJECT OPERATE
RESET/
CANCEL
HDR
CNTRESET MENU TIME MODE
SHIFT
ON SCREEN
OPERATE
SET
–+
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4-2 Main Menu Display
You can display date and time data recorded when an alarm input or power failure occurs, as well as the hour meter (drum
rotating time) by selecting the desired item in the main menu.
The date/time setting screen, menu switch setting screen for each application, and timer recording program setting screen can
also be displayed by selecting the desired item in the main menu.
Date/time setting, menu switch setting and hour meter can be checked on the VCR’s display as well.
Contents of the main menu items
5CLOCK SET (VCR's display cLSET)
Displays the date/time setting screen.
* Set the clock before operating the VCR (refer to
page 19).
5ONSCREEN/F. DISP MODE (VCR's display DISP)
Let’s you choose whether or not to display on-
screen display items, brightness selection, [REC]
indicator and warning indicator.
5VIDEO/VTR MODE (VCR's display VIDEO)
For VCR operation settings such as V. Pulse ON/
OFF, HDR recording, counter memory function and
repeat recording/playback.
5SRI/EXT MODE (VCR's display SRi ET)
For setting series recording or automatic recording
with an external signal.
5ALARM/SENSOR MODE (VCR's display ALSEN)
For setting alarm recording or sensor recording
operation.
5BUZZER/IN OUT (VCR's display BU22iO)
Turn ON/OFF buzzers such as the tape end buzzer
and alarm/sensor buzzer and set camera switch
signal output.
5PROGRAM TIMER (VCR's display PRG)
Shows timer recording program settings with the day
of the week.
5HOLIDAY SET (VCR's display HOLiDY)
Shows timer recording program settings at specified
dates.
5HOUR METER (VCR's display HOUR)
Shows the VCR’s operating time (drum rotation time).
5OTHER (VCR's display OTHER)
Shows the date and time when an alarm was input or
a power failure occurred.
[SHIFT t] button
[SHIFT 7] button
[MENU] button
[SET –] button
[SET +] button
4 ON-SCREEN/MENU SWITCHES
Operation
5Connect the video output connector of this unit to the
monitor’s video input connector.
1Turn on the monitor and VCR.
2Press the [MENU] button.
[The main menu screen is shown on the monitor
screen.
3Press the [SHIFT 7] button to move the cursor to the
item you want to display.
4Press the [SET +/–] button to display the selected menu
screen on the monitor (see below).
5To restore the main menu screen, press the [MENU]
button.
To cancel the main menu mode, press the [MENU]
button again. The normal screen is restored.
Cursor
Main menu screen

19
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SR-9090U
REC
REC STOP REC
CHECK EJECT OPERATE
REVERSE
FIELD REV FIELD ADV
REW PLAY
TRACKING TIMER SEARCH
RESET/
CANCEL
DISPLAY LOCK
HDR
CNTRESET MENU TIME MODE
SHIFT
ON SCREEN
OPERATE
V. LOCK
PAUSE FF
–+–+SET
–+
RESET/
CANCEL
MENU TIME MODE
SHIFT
ON SCREEN
SET
–+
4-3 Date and Time Setting
The time/date generator and timer recording will not function if the time and date are not set.
Set the month/day/year, hour/minute and Summer Time Compensation ON/OFF on the CLOCK SET screen. The setting can
be checked even on the display.
4 ON-SCREEN/MENU SWITCHES
[SET –] button
Operation
1Turn on the monitor and VCR.
2Pressthe[MENU]buttontodisplaythemainmenuscreen.
3Press the [SHIFT 7] button to set the cursor on <CLOCK
SET> on the main menu.
4Press the [SET +/–] button.
[The <CLOCK SET> screen is shown. The cursor shows
the <TIME> setting item and the hour digit blinks.
*Checkthat <SUMMER TIME> on thelastlineis set to
“OFF.
5Set the “hour” by pressing the [SET +/–] button. This VCR
uses the 24-hour system.
• Pressthe[SET+]buttontoincreasethenumericalvalue
and the [SET –] button to decrease it (same for minute,
month, day and year setting).
5Duringsummertimeperiod,setthetimewithaone-hour
delay.
5During standard time period, set the actual time.
6Press the [SHIFT t] button so that the minutes digit blinks.
7Press the [SET +/–] button to set the minutes.
8Press the [SHIFT 7] button.
[The<DATE>settingitemisshownbythecursorandthe
year item blinks.
5Press the [SET +/–] button to set the year.
9Press the [SHIFT t] button so that the month item blinks
and set the month with the [SET +/–] button.
0Inthesameway,pressthe[SHIFTt]buttonsothattheday
item blinks and set the day with the [SET +/–] button.
!For summer time compensation
• Pressthe[SHIFT7]buttontosetthecursorto<SUMMER
TIME> and press the [SET +/–] button to set <SUMMER
TIME> to “ON”.
[The time is automatically adjusted one hour forward in
the summer.
@End date/time setting.
• Press the [MENU] button.
[The monitor screen returns to the main menu screen
and the time count starts from 00 second.
• Pressthe[MENU]buttonagaintorestorethenormalscreen.
CLOCK SET screen
Cursor
indication
[SET +] button
[MENU] button
[RESET/CANCEL]
button
[CNT/RESET] button
Cursor
indication
VCR's display
Main menu screen
[SET +] button
[SHIFT 7/t] and
[SET +/–] buttons
Press twice the [MENU]
button.
Normal screen

20
4 ON-SCREEN/MENU SWITCHES
4-3 Date and Time Setting
Summer Time Compensation
• When setting the time, make sure the <SUMMER TIME> item is set to “OFF”.
When this unit is shipped, this item is set to “OFF”.
Standard time
1Set the clock to the actual time.
2When daylight savings start, set the <SUMMER TIME>
item to “ON”.
• The time advances one hour on the display.
During daylight savings time
1Set the time with a one-hour delay.
2After setting the time, set the <SUMMER TIME> item to
“ON”.
• The set time advances one hour.
3At the end of the daylight savings time season, set the
<SUMMER TIME> item to “OFF”.
• The standard time instead of <SUMMER TIME> is
displayed.
4-4 Hour Meter Display
Drum rotation time is displayed on the monitor’s screen and the VCR's display in the form of an hour meter. Use this data to
schedule maintenance.
Operation
1Turn on the VCR and monitor.
2Press the [MENU] button to display the main menu.
3Press the [SHIFT 7] button to set the cursor on the
<HOUR METER> on the main menu.
4Press the [SET +/–] button to show the hour meter (drum
rotating time) on the monitor.
5Press the [MENU] button twice to restore the normal
screen.
Notes:
• If the power plug has been disconnected from an AC outlet for a long time, make sure the set time is correct before
using the unit. (Clock time may be affected by environmental factors.)
• When the built-in backup battery capacity is low, the error indication E-10 appears on the display. Contact your local
JVC dealer to replace the built-in battery.
Time setting for 29 seconds or less
Whentheseconds valueis29orless,youcanresetitto00by
pressingthe[CNTRESET]buttonwhilepressingthe[RESET/
CANCEL] button.
• For 30 or more, the seconds value is reset to 00 and the
minutes value is increased by one.
HOUR
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[SET +/–] button
Hour meter screen
Main menu screen VCR's display