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1-1 Major Features
1 INTRODUCTION
5 S-VHS/S-VHS ET recording
S-VHS or S-VHS ET is employed as the recording
mode. Employing the S-VHS ET recording mode
enables recording with a horizontal resolution of 400
lines on a VHS cassette. The VHS mode is only
available for playback.
5 Extended timelapse recording for up to 240 hours
Recording times are selectable from 3 hours (SP mode)
and L12/L24/24/48/72/120/168/240 (Timelapse mode)
(when E-180 tape is used).
In the L12 and L24 Timelapse modes, sound is recorded
as well.
• Recording and playback are not possible in the Long
Play (LP) mode.
• L12/L24 modes cannot be selected for S-VHS ET
recording.
When a tape recorded on this unit is played back on
another VCR, noise may appear on playback picture.
5 Alarm recording function
When an alarm signal is input in the Record mode, the
3-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.
5 Sensor 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.
5 Time/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.
5 Timer-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).
5 Tape 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.
5 Recording check function
Recording conditions (quality) can be checked at any
time during recording by pressing the recording check
button.
5 Operation lock system
The secret operation lock system prevents an accidental
or deliberate interference with VCR operation.
5 Camera switching signal output terminal
5 Warning 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.
5 Operating mode-off video throughout function
Even when the operating mode is off, the camera’s EE
input can be output from the VCR.
5 Series recording function
Two or more SR-S990E/EK 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.
5 Automatic re-start of recording after a power failure
5 Time adjust function
With the IN/OUT terminal for time adjustment, the time
difference can be set to “0” with multiple SR-S990E/EKs
connected. (adjustment time: 00:00/12:00)
5 Digital hour meter display
5 Repeat playback/recording
5 Alarm recording, tape end and warning electronic
buzzer
5 Recording control with external activation signal
5 Counter end function
5 External timer connection
5 Summer time compensation function
5 Wired remote control (optional)
Used when an optional SA-K97U RS-232C interface
board is installed.
5 RS-232C control
The SR-S990E/EK can be controlled via a personal
computer. Operation status can be monitored on the
computer.
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
1 INTRODUCTION
1-4 Precautions
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) ^ 䡬䡬䢇
Pinch rollers ^ 䡬䡬䢇
Drive parts ^^ ^ 䡬
Periodic Maintenance
Check or replace the following mechanical parts according
to the running time.
^ : Cleaning
䡬 : Check or replace as required.
䢇 : 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.
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
5 Avoid 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
5 Use this unit in horizontal (flat position) only.
5 To 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.
5 Do 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.
5 Handle 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.
5 Turn off the power to save electricity when not
using the unit.
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
1
Turn on the power for all units connected to the
surveillance system.
2
Check the quality of the image shown on the monitor.
3
Check that the date and time shown on the monitor are
correct.
4
Rewind the tape recorded the previous day for several
seconds.
5
Press the play button for playback.
6
Check that the playback picture is normal.
7
Check that the recorded date and time are correct.
5 This unit includes a Recording Check function (using the
[REC CHECK] button). Use these features to quickly
check recording quality on a daily basis.
1-3 Daily Inspection
If any problems are found after inspection, turn the
power off, unplug the power plug from the AC outlet,
and contact your JVC dealer.
See the service manual page 2-2 “2.2 MAINTENANCE AND CHECK”.
For servicing
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