Lexus SC300 / Lexus SC400. Service manual — part 156
B. with CD player type
Wire harness faulty.
Radio receiver assembly faulty.
Is there continuity between the following terminals
with connector connected?
Radio receiver amplifier A3 – ground
Radio receiver amplifier A4 – ground
Power amplifier faulty.
Is there continuity between the following terminals
with connector disconnected?
Radio receiver assembly A11 – ground
Replace fuse.
Wire harness faulty.
Remove foreign object.
Is there a foreign object inside tape player?
Is radio operating normally?
Check if RADIO No.1 and RADIO No.2 fuses are OK
Wire harness faulty.
Radio receiver assembly faulty.
Is there continuity between the following terminals
with connector disconnected?
Radio receiver assembly A11 – Power amplifier A11
Is there continuity between the following terminals
with connector disconnected?
Power amplifier B7–ground.
–
BODY ELECTRICAL SYSTEM
AUDIO SYSTEM
BE–235
12
Tape player
CASSETTE TAPE WILL NOT EJECT
A. without CD player type
Is there battery voltage between the following ter-
minals with connector connected?
Radio receiver amplifier A3 – ground
Radio receiver amplifier A4 – ground
Replace fuse.
Wire harness faulty.
Wire harness faulty.
Is radio operating normally?
Check if RADIO No.1 and RADIO NO.2 fuses are OK
Is tape player operating normally?
Radio receiver assembly faulty
Is there continuity between the following terminals
with connector disconnected?
Radio receiver amplifier A7 – ground
Cassette tape is
jammed or radio receiv-
er assembly faulty.
Radio receiver assem-
bly faulty.
BE–236
–
BODY ELECTRICAL SYSTEM
AUDIO SYSTEM
B. with CD player
Is there battery voltage between the following ter-
minals with connector connected?
Radio receiver amplifier A3 – ground
Radio receiver amplifier A4 – ground
Replace fuse.
Wire harness faulty.
Is radio operating normally?
Check if RADIO No.1 and RADIO NO.2 fuses are OK
Is tape player operating normally?
Power amplifier faulty.
Is there continuity between the following terminals
with connector disconnected?
Radio receiver amplifier A11 – ground
Cassette tape is
jammed or radio receiv-
er assembly faulty.
Radio receiver assem-
bly faulty.
Wire harness faulty.
Wire harness faulty.
Radio receiver assembly faulty.
Is there continuity between the following terminals
with connector disconnected?
Radio receiver amplifier A11 – Power amplifier A11
Is there continuity between the following terminals
with connector disconnected?
Power amplifier B7 – ground
–
BODY ELECTRICAL SYSTEM
AUDIO SYSTEM
BE–237
13
Tape player
DISPLAY INDICATES, BUT NO SOUND IS
PRODUCED (EXCEPT WOOFER)
A. without CD player type
Is radio operating normally?
Radio receiver assembly faulty.
Radio receiver assembly faulty.
Is there continuity between the following terminals
with connector disconnected?
Radio receiver amplifier B1 – Power switch 14
Radio receiver amplifier B3 – Power switch 11
When the volume switch is turned from minu-
mum to maximum, does resistance between
terminal B1–B3 of radio receiver assembly
change from 0 to 50 k
?
is resistance value approx. 50 k
between ter-
minals B3–B6 of radio receiver assembly?
Is there continuity between the following terminals
with connector disconnected?
Radio receiver amplifier B6 – Power switch 13
Power switch faulty.
Wire harness faulty.
Power switch faulty.
Wire harness faulty.
BE–238
–
BODY ELECTRICAL SYSTEM
AUDIO SYSTEM
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст