|
700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
Information |
|
CR-906 Stereo, overnight issue, faint sound from 1 spkr onlyViews : 690 Replies : 4Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Apr 17th, 2024, 20:20 | #1 |
Master Member
Last Online: Jul 3rd, 2024 16:57
Join Date: Jul 2009
Location: Dublin
|
CR-906 Stereo, overnight issue, faint sound from 1 spkr only
Chaps,
Our CR-906 stereo has worked w/o fault since we got our 940 Celebration back in '98 (aside from a sticking tape player). However 2 weeks ago, suddenly there was no sound from the radio, which we always have on when the car is driven. The stereo behaves fine otherwise: The display works, the backlight, it accepts the code after the battery is disconnected etc. Fuse in the back of it is okay. I cranked up the volume to the max and, oddly, I can hear the radio coming through the back left door speaker - basically to the level of hearing music from another room. But there is no sound from the other speakers / tweeters. Any of this sound familiar to anyone or any ideas? I'm just reading through various old threads here but just thought I'd ask. Cheers! |
Apr 17th, 2024, 21:13 | #2 |
Master Member
Last Online: Jul 3rd, 2024 16:57
Join Date: Jul 2009
Location: Dublin
|
Thinking out loud, it appears to have an internal amp, which could be blown. It also has a socket for an external amp. If I was to fit an external amp, and speakers to it, does anyone know if that connection is dependent on the internal amp working or is it independent? I suppose I'm wondering if the pcb has failed somewhere, like the instrument clusters.
|
Apr 17th, 2024, 22:01 | #3 |
bob12
Last Online: Yesterday 18:56
Join Date: Aug 2006
Location: Woking
|
Have you tried tapping the tops/or operating any of the electric window or mirror controls on the driver's door? If that makes the speaker wherever front or back, left or right re-connect you have a problem with the large ground wire connector block under the driver's leg side trim panel near the Jetronic ecu. Clean it all up and maybe your problem will be resolved.
Bob . |
The Following User Says Thank You to bob12 For This Useful Post: |
Apr 17th, 2024, 23:18 | #4 |
Master Member
Last Online: Jul 3rd, 2024 16:57
Join Date: Jul 2009
Location: Dublin
|
Thanks, Bob - that's a very interesting idea. I did clean that area up last summer when addressing some other issues but definitely no harm in checking things over again. From what I've read, we seem to have been quite lucky having things work this long.
|
Apr 18th, 2024, 08:43 | #5 |
Master Member
Last Online: Yesterday 16:33
Join Date: Feb 2006
Location: Amersfoort (NL)
|
Wiring
Run a temporary wire from the radio to one of the speakers to determine if the fault is in the wiring or the radio.
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|