Aiwa Z-R900 Operating Instructions Manual page 28

TROUBLESHOOTING GUIDE
If the unit fails to perform as described in these Operating
Instructions, check the following guide.
GENERAL
There is no sound.
* ls the AC cord connected properly?
¢ Is there a bad connection? (-> page 3)
* There may be a short circuit in the speaker terminals.
—> Disconnect the AC cord, then correct the speaker
connections.
* Was an incorrect function button pressed?
Sound is emitted from one speaker only. :
* Is the other speaker disconnected?
The output sound is not stereo.
«Is the Karaoke function turned on? (—> page 22)
An erroneous display or a malfunction occurs.
—> Reset the unit as stated below.
TUNER SECTION
There is constant, wave-like static.
* Is the antenna connected properly? (> page 3)
«is the signal weak?
-> Connect an outdoor antenna.
The reception contains noise interferences or the sound
is distorted.
¢ Is the system picking up external noise or multipath distortion?
—> Change the orientation of the antenna.
=> Move the unit away from other electrical appliances.
CASSETTE DECK SECTION
The tape does not run.
* Is Deck 2 in pause mode? (-> page 12)
The sound is off-balance or not adequately high.
* Is the playback head dirty? (> page 25)
Recording is not possible.
¢ Is the erasure prevention tab on the tape broken off? (-> page
13)
* Is the recording head dirty? (-> page 25)
Erasure is not possible.
* Is the erasure head dirty? (> page 25)
* ls a metal tape being used? .
High frequency sound is not emitted. |
* Is a tape recorded without Dolby NR played back with the Dolby
NR system operating? (-> page 12)
* Is the playback head dirty? (-> page 25)
CD PLAYER SECTION
The CD player does not play.
* Is the disc correctly inserted? (-> page 15)
* Is the disc dirty? (-> page 25)
¢ Is the lens affected by condensation?
—> Wait approximately one hour and try again.
To reset
If an unusual condition occurs in the display window or the
cassette decks, reset the unit as follows.
1 Press the POWER button to turn off the power.
2 Press the POWER button to turn the power back on while
pressing the MICLEAR button. Everything stored in memory
after purchase is canceled. ;
If the power cannot be turned off in step 1 because of a
malfunction, reset by disconnecting the AC cord, and connect it
again. Then, carry out step 2.
27 ENGLISH
PARTS INDEX
Instructions about each part on the main unit or remote control
are indicated on the pages listed below.
(in alphabetic order)
Parts Pages
AG 11
BBE 6
cD 14
CLASSIC 7
MCLEAR 9, 12, 14
CLOCK 5
CLOCK/SET 5
DEMO 5
DIRECT 14
<> DIRECTION/PRESET 12,13
DISC CHANGE 14
DISC DIRECT PLAY 14
DISCO 6
DOLBY NR 12, 16
<<, K<DOWN 9, 12, 14, 23
ECHO 20
EDIT/CHECK 14, 18, 19
FREQ/TUNER PRESET 8,9
GEQ 7
GEQ FREQ 7
GEQ LEVEL 7
GEQ OFF/ON 7
HALL 6
JAZZ 7
LIVE 6
KARAOKE (VOCAL FADER/MULTIPLEX) 21
M1, M2, M3, M4 7
MEMORY 7
MIC 20
MIC 1, MIC 2 20
MULTI JOG 5, 8, 9, 14, 23, 24
4 OPEN/CLOSE - 14
PHONES 5
PHONO 24, 25
POP 7
POWER 5
PRGM 15, 22
PRGM/MANUAL 7
PTY 10, 11
RANDOM 15
@REC/REC MUTE 16,17
REPEAT/MONO TUNER 9,15
REV MODE (DECK 2) 12, 16
RT 8, 10
HISET 5, 8, 9, 14, 17, 23
SLEEP 24
SURROUND 6
SYNC DUB 18
TAPE/DECK 1/2 13,17
T-BASS 6
TIMER 23
TUNER/BAND 8,9
Pr UPPPi 9, 12, 14, 23
VIDEO/AUX 24, 25
VOCAL FADER/MULTIPLEX (KARAOKE) 21
VOLUME 6, 20
0-9, +10 10, 14, 15, 18,19,
22