JVC SR-L910EK appendix Troubleshooting, No Error Indication

9 TROUBLESHOOTING

9-2 No Error Indication

10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD

Functions that can be controlled with front panel buttons and switches can also be controlled from a personal computer when the optional SA-K97U RS-232C interface board is installed. Operation status can also be monitored on the computer.

Symptoms

No power is supplied.

Operation buttons have no effect during recording and playback.

No picture is shown during playback.

Noise appears in the picture in the Shuttle Search mode and Still mode.

Noise appears in part of the playback picture.

When the cassette is played back, the picture becomes rough or disappears.

During playback, sound is high- pitched and hard to hear.

Recording is impossible.

Timer recording is working.

The clock cannot be set.

Tape running sound is heard in the Record, Play, FF and REW modes.

The time/date is not shown.

During recording, repeat recording does not take place.

Causes

qIs the power cord disconnected?

qIs the TIMER indication shown?

qIs the Operation Lock mode engaged?

Is the Operation Lock mode engaged?

Is the monitor connected correctly?

This is not a malfunction.

qIs the tracking adjusted properly?

qAre you playing back a tape recorded in the VHS SP (3H) mode in the Timelapse mode? In this case, noise appears in the playing picture.

Dust may have accumulated on the video heads.

Are you playing back a tape recorded in the 12H or 24H Timelapse mode in the VHS Standard (3H) mode? In this case, sound is high-pitched.

Has the cassette safety tab been removed?

qIs the clock set correctly? Is the timer properly programmed?

qIs the TIMER indication lit?

Is the TIMER indication lit?

This is normal.

qIs the clock set?

qIs the <POSITION> function menu switch set to OFF?

Is the function menu switch <TAPE END MODE> in the alarm/sensor recording mode setting screen set to STOP, EJECT or REW? If so, when the tape ends during

Remedies

qConnect the power cord to an AC outlet.

qPress the REC TIMER button so that the TIMER indication goes out.

qRelease the Operation Lock mode.

Release the Operation Lock mode.

Connect the monitor correctly.

—

Adjust the tracking with the [TRACKING+/–] button. Tracking adjustment is not possible in the Timelapse Play mode.

Clean the video heads. Consult your nearest JVC dealer.

Play back the tape in the same mode (12H or 24H) as that used for recording.

Paste a piece of cellophane tape over the hole.

qCheck again.

qCheck it again.

Press the TIMER button so that the TIMER indication goes out.

If you feel it is too noisy, install the VCR in a rack.

qSet the clock.

qSet the <POSITION> function menu switch to another position.

To continue repeat recording even when the alarm recording is executed, set the function menu switch <TAPE END MODE> on the alarm/sensor recording mode setting screen to REPEAT.

10-1. Installation of the SA-K97U
	Rear panel
MIC VIDEO	AUDIO
IN
IN	IN	SA-K97U
REMOTE		installation
OUT	OUT	section
Top cover
	Screws
Plate

	SA-K97U
Positioning	RS-232C board
holes	Projection sections
	(2 positions)
(2 positions)
	Screws (2)

The procedure is shown below. However, to avoid electric shock or injury, contact your local JVC service center for details.

Note:

When installing this board, be careful not to injure

yourself on sharp edges and metal parts inside

the VCR.

Before installing the board, turn the power off and unplug the power cord from an AC outlet.

1.	Detach the top cover.
	Remove the 5 screws securing the top cover and lift it off.
2.	Detach the plate in the VCR.
	Remove the 2 screws on the rear panel. Detach the plate
	from the inside of the VCR.
3.	Connect the SA-K97U’s connector to the VCR.
	Insert the SA-K97U connector into the connector (CN607)
	on the board in the VCR using a tool such as a pincette.

•During insertion, make sure the connector is aligned properly.

•Press both edges of the connector to insert it securely.

4.Install the SA-K97U in the VCR.

Make sure the SA-K97U bracket is facing the correct direction and align the positioning holes on the bracket with the projections (2 positions) on the VCR’s case. Secure the bracket with the 2 screws removed in step 2.

5. Attach the top cover as before. Attach the top cover to the VCR using the 5 screws removed in step 1. Make sure you use the correct screws.

Camera image is not switched.

recording in the case when alarm recording is executed even once, it stops or is rewound to the beginning and stops.

Is the <CAM SW> function menu switch set to "OFF"?

When setting the camera switching timing, set it to "1 FIELD" or "1 FRAME".

MIC VIDEO	AUDIO
IN
IN	IN	SA-K97U
REMOTE
	OUT
OUT

44 45