Bose Wave music system Manual de usuario

BOSE® WAVE® RADIO/CD TROUBLESHOOTING GUIDE

Refer to the Bose Wave radio/CD service manual, part number 25044 , for schematics,

PCB layouts and part lists.

Part Number 25044 -TG1 Rev. 00

Symptom Reason(s) A tion

Dead Unit. 1. Fuse F1 open.

2. Unseated J1.

. Open power transformer.

1. Replace fuse F1.

2. Reconnect J1.

. Replace power transformer.

Unit turns on/off by

itself. CD door defective. Replace the CD door assembly.

Intermittent or

inoperable FM/AM.

Depending on date code,

defective CF 0 and C 41, C 42

or fractured solder joints on

CF 0 .

Refer to service bulletin 25044 -

B for further information.

1. In units built before 5/4/99,

replace CF 0 with a 7.2 MHz

crystal, part number 250892-

001 and C 41 and C 42 with

27pF capacitors part number

1 622-270. After soldering

CF 0 , be sure to clip the

leads.

2. In units built after 5/4/99,

check for fractured solder

joints on CF 0 and make

sure the leads have been

clipped.

Constant hum on

AM/FM. Power supply capacitor C205 may

be installed with reverse polarity. Replace capacitor C205 part

number 144000-471V.

Hum on all sources. Reversed C202 or C205. Replace C202 or C205.

The CD player is

inoperable or

intermittent.

Fractured solder joints on power

supply capacitor C16. Re-solder power supply capacitor

C16.

The unit doesn’t

respond to the

buttons located on

the CD door.

The PCB located in the CD door

assembly may be cracked. Replace the CD door assembly,

part number 198608-010 platinum

white or 198608-002 graphite

grey.

CD does not work. 1. CD mechanism lens dirty.

2. C16 has fractured solder joints

. 1 conductor flex cable

defective.

4. CD mechanism failed.

5. U500 defective.

6. Switch on CD door assembly

defective.

1. Clean lens.

2. Resolder C16.

. Replace the flex cable.

4. Replace the CD mechanism.

5. Replace U500.

6. Replace the CD door

assembly.

CD skips. 1. C16 has fractured solder joints

2. 1 conductor flex cable

defective.

1. Resolder C16.

2. Replace the flex cable.

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