Troubleshooting Guide - Technics SC-EH590 Operating Instructions Manual

Troubleshooting guide

Before requesting service, make the below checks. If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve
the problem, consult your dealer for instructions.
Reference pages are shown as black circled numbers
Common Problems
No sound. Turn the volume up.
Switch off the unit, determine and correct the cause, then switch the unit on. Causes include shorting of the
positive and negative speaker wires, straining of the speakers through excessive volume or power, and using
the unit in a hot environment.
Sounds unfixed, reversed or Check the speaker connections. 6
come from one speaker only.
Humming heard during play. An AC mains lead or fluorescent light is near the cables. Keep other appliances and leads away from this
unit's cables.
If possible in your area, turn the AC mains lead's plug or connector over to reverse the lead's polarity.
"ERROR" is displayed. Incorrect operation performed. Read the instructions and try again.
"U70" is displayed. Connect the flat cables firmly. If "U70" remains on the display, contact the dealer.
"F60" is displayed. There is a problem with the amplifier. Consult your dealer.
"– –:– –" appears on the display. You plugged the AC mains lead in for the first time or there was a power failure recently.
Set the time. <
The display starts up even after The demonstration feature (–DEMO) is on. Turn it off if it is not required. <
the unit is turned off.
The CD changer or CD player
The disc may be upside down. 8
The display is wrong or play
won't start. Wipe the disc.
Replace the disc if it is scratched, warped, or nonstandard.
Condensation may have formed in the changer or player due to a sudden change in temperature.
Wait about an hour for it to clear and try again.
There is a problem with the CD mechanism. (A power failure may have occurred.)
"TAKE OUT/DISC" appears on The tray will open automatically. Remove the CD from the tray, and after ensuring there is no CD in the tray,
the display. close it. The unit will make the disc changing noises for a few moments and then it should operate normally.
Listening to the radio
Use an outdoor antenna. U
Noise is heard.
The stereo indicator flickers or
doesn't light.
Sound is distorted.
A beat sound is heard. Turn the TV off or separate it from the unit.
A low hum is heard during AM Separate the antenna from other cables and leads.
broadcasts.
The correct AM frequency can't Change the frequency step. Hold [TUNER/BAND] down for 10 seconds to change the step to 9 kHz.
be tuned in.
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.
The cassette deck
Poor quality sound. Clean the heads. W
Check the Dolby NR setting. C
If the erasure prevention tabs have been removed, cover the holes with adhesive tape. L
Recording is not possible.
"DECK NO TAPE" is displayed Load a cassette into deck 2. L
during "One touch editing".
"DECK CHANGE TAPE" is
displayed during "One touch If the erasure prevention tabs have been removed, cover the holes with adhesive tape. L
editing".
When there is a television set nearby
The picture on the TV The location and orientation of the antenna are incorrect. If you are using an indoor antenna, change to an
disappears or stripes appear on outdoor antenna.
the screen. The TV antenna wire is too close to the unit. Separate the antenna wire of the TV set from the system.
The remote control
The remote control doesn't Check the batteries are inserted correctly. ;
work. Replace the batteries if they are worn.
All components are required to service the system. If service is ever necessary, bring the entire system.
Maintenance
If the surfaces are dirty
To clean this unit, wipe with a soft, dry cloth.
≥Never use alcohol, paint thinner or benzine to clean this unit.
≥Before using chemically treated cloth, read the instructions that came with
the cloth carefully.
For a cleaner crisper sound
Clean the heads regularly to assure good quality playback and recording.
Use a cleaning tape (not included).
Cassette tape selection and care
The unit can correctly play or record on the following types. It identifies the
type automatically.
✔
Normal position/TYPE I
✔
High position/TYPE II
✔
Metal position/TYPE IV
≥Tapes exceeding 100 minutes are thin and can break or get caught in the
mechanism.
≥Tape slack can get caught up in the mechanism and should be taken up
before the tape is played.
≥Endless tapes can get caught up in the deck's moving parts if used incor-
rectly. Use tapes appropriate to this unit's auto-reverse mechanism.
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