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Kenwood XD-550 music system
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jango2
Jan 14, 2006, 3:57:40 AM1/14/06
to
The unit turns on for 3 seconds and then goes into standby. I've
disconnected the cd carrousel and it still happens. Tape mechanisms
arent locked. Voltage observed at outputs of both channels of audio
output power amplifier is -16 and i suspect the syscon sees this and
trips power off. I need a schematic of the power supply and power amp.
Alternatively, could anybody tell me what voltages to expect at the 12
pin ribbon cable coming from the PS terminating in connecter E1 at the
mainboard.
Thanks,
Jango
disconnected the cd carrousel and it still happens. Tape mechanisms
arent locked. Voltage observed at outputs of both channels of audio
output power amplifier is -16 and i suspect the syscon sees this and
trips power off. I need a schematic of the power supply and power amp.
Alternatively, could anybody tell me what voltages to expect at the 12
pin ribbon cable coming from the PS terminating in connecter E1 at the
mainboard.
Thanks,
Jango
jango2
Jan 17, 2006, 6:10:51 AM1/17/06
to
Open R186 , 2.2K ohm resistor pulling -12v regulator transistor Q60's
base negative.
Case dismissed.
Next patient please !
:)
Jango2
base negative.
Case dismissed.
Next patient please !
:)
Jango2
Mark D. Zacharias
Jan 17, 2006, 6:59:32 AM1/17/06
to
oh-kay, what piece was this on?
Mark Z.
"jango2" <crow_s...@yahoo.co.uk> wrote in message
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kip
Jan 17, 2006, 8:47:27 AM1/17/06
to
Oh Magic Ball what say ???
"jango2" <crow_s...@yahoo.co.uk> wrote in message
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"jango2" <crow_s...@yahoo.co.uk> wrote in message
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jango2
Jan 18, 2006, 6:50:04 AM1/18/06
to
The kenwood RXD-550 music system, Amplifier pcb, -12 volt regulator
tranistor. Problem solved, thought i'd archive the solution.
Jango !
tranistor. Problem solved, thought i'd archive the solution.
Jango !
JW
Jan 18, 2006, 7:02:25 AM1/18/06
to
On Tue, 17 Jan 2006 11:59:32 GMT "Mark D. Zacharias"
<spam...@nonsense.net> wrote in Message id:
<E_4zf.12281$PL5....@newssvr11.news.prodigy.com>:
<spam...@nonsense.net> wrote in Message id:
<E_4zf.12281$PL5....@newssvr11.news.prodigy.com>:
>oh-kay, what piece was this on?
Google certainly is making an absolute mess of Usenet. Since the poster
changed the subject line, and didn't quote his previous message, I'll
repost with the subject line changed back. FWIW, if you use a decent
newsreader like Agent, you can look at the headers of a post and from the
reference line navigate back to the original post by clicking on the
message ID's. Anyway's, here's the original post:
And the quoted solution:
Mark D. Zacharias
Jan 18, 2006, 9:25:11 PM1/18/06
to
"JW" <no...@dev.nul> wrote in message
news:b6bss15juhncohvuk...@4ax.com...
OK, thanks for the update!
Mark Z.
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