86A-15
V1
MR-453-X79-86A000$100.mif
RADIO
Fault finding chart
86A
ALP 3 The radio does not operate when the ON button is pressed
Press the ON button of the radio.
Does the display work?
(backlighting)
Check fuse F28 (15 A) on component 1016.
Is the fuse sound?
Check that the radio volume is not
at 0.
Check the insulation of
connection BC.
Is the insulation
correct?
Check the 10 A fuses on the radio,
component code 261.
Is the fuse sound?
Check that the Fader is set at 0.
Replace the fuse.
Does the radio come
on?
Check for +12 V on connection BC of
component 261.
Is the feed correct?
Use an ohmmeter to measure the
speaker resistance from the radio
with the connector disconnected,
between connections 34A to 34H
between 261 and 189, 190, 191,
192.
The fault has been
rectified.
NO
YES
NO
YES
NO
NO
B
YES
YES
NO
YES
NO
C
YES
D
A
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