2005 TOYOTA AVENSIS Service Repair Manual

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Page 1425 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05±1404
± DIAGNOSTICSAUDIO SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2. IDENTIFICATION OF NOISE SOURCE
(a) Identify the condition under which the noise occurs, and
check the noise filter on the relat

Page 1426 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05C4W±01
I30195
AUDIO SYSTEM Check Sheet
Inspector s name:
Customer s NameVIN
Production Date
Licence No.
Odometer Reading / /km
Mile
Frequency of Problem Occurrence

Page 1427 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 0549G±09
05±1396
±
DIAGNOSTIC SAUDIO SYSTEM
A VENSIS RE PAIR MANUAL (RM1018E)
HOW T O PROCEED WITH TROUBLESHOOTING
1 VEHICL E BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANA LYSIS ( SEE P AGE 0

Page 1428 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual ± DIAGNOSTICSAUDIO SYSTEM
05±1397
AVENSIS REPAIR MANUAL (RM1018E)
END

Page 1429 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 0549F±10
30 kHz 300 kHz 3 MHz 30 MHz 300 MHz
LF MF HF VHF
AM FM
Frequency modulation Frequency
Designation
Radio wave
Modulation Amplitude modulation
BE2818
FM (Stereo)
FM (Monaural)
AM
BE2819
Fading

Page 1430 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual BE2820
Multipath
BE2821
Fade Out 05±1394
± DIAGNOSTICSAUDIO SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(b) Multipath
Interference caused by reflection of radio waves against
obstructions is called º

BE2820
Multipath
BE2821
Fade Out 05±1394
± DIAGNOSTICSAUDIO SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(b) Multipath
Interference caused by reflection of radio waves against
obstructions is called ºMultipathº. Multipath occurs when
radio signals emitted from the broadcast transmitter an-
tenna are reflected against tall buildings or mountains
and interferes with other signals which are to be received
directly.
(c) Fade Out
Because FM frequency is higher than that of AM, FM ra-
dio wave tends to be reflected against obstructions such
as tall buildings or mountains. For this reason, FM signals
often seems to gradually disappear or fade away as the
vehicle goes behind those obstructions. This phenome-
non is called ºfade outº.
4. NOISE PROBLEMS
(a) It is very important for noise troubleshooting to understand a customer's claim clearly. Use the following
table to diagnose the phenomenon.
Radio waveCondition in which noise occursProbable cause
Noise occurs at a specific place.Strong possibility of foreign noise.
AM
Noise occurs when listening to faint broadcasting.The same program may be broadcasted from some local sta-
tions. If the program is the same, one of those may be tuned
in.
Noise occurs only at night.Strong possibility of beat from a distant broadcasting.
FMNoise occurs at a specific place while driving.Strong possibility of multipath noise and fading noise caused
by changes of FM frequency.
HINT:
If the condition where the noise occurs does not meet any of the above, find out the cause based on ºRecep-
tion Problemsº. Refer to the description about Multipath and Fading mentioned previously.
5. COMPACT DISC PLAYER
(a) Compact Disc (hereafter called ºCDº) Players use a laser beam pick±up to read the digital signals re-
corded on the CD and reproduce analog signals of the music, etc. 4.7 in. (12 cm) and 3.2 in. (8 cm)
discs are available for the CD player.
HINT:
Never attempt to disassemble or apply oil to any part of the player unit. Do not insert any object into the maga-
zine except for a disc.
NOTICE:
CD players use an invisible laser beam which could cause hazardous radiation exposure. Be sure
to operate the player correctly as instructed.

Page 1431 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual N17398
Example :
HeadCapstan
Pinch Roller
BE4331
± DIAGNOSTICSAUDIO SYSTEM
05±1395
AVENSIS REPAIR MANUAL (RM1018E)
6. MAINTENANCE
Tape Player / Head Cleaning:
(a) Raise the slot cover with your fi

Page 1432 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual H43588
Driver Side J/BAirbag Sensor Assy Center
D5 DLC3
TCW−
L
J21D
J/C
(*2) TC
(*2)
W− L
(*1) J20
B
(*2)
J8
B
(*1) W−
L
DB17
DD8
J8 B
(*1) A27
19
13 W−
L
1AZ−
FSE, 1CD− FTV Engine:
CG TC

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