[TechAssist] Re: 3rd & Final Post Need a Copy of a SchematicPioneer Model DEH P47DH CAR DECK

  • From: Albert Walfield <albertwalfield@xxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Thu, 08 May 2003 16:39:04 -0300

Was in to there shop on Almond St in Halifax last month to see Brian for a
chat but the shop was empty
and no forwarding location. So I think they may be out of bussiness and
don't  know where Brian went to work at .
Who ever gets him will have a great tech  with a lot of experience on his
side.

Albert Walfield

Albert Walfield's Electronics
RR#3
Bridgewater
Nova Scotia
CANADA
B4V 2W2
Fax# 902 543-9831

----- Original Message -----
From: <hartstv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, May 08, 2003 4:23 PM
Subject: [TechAssist] Re: 3rd & Final Post Need a Copy of a Schematic
Pioneer Model DEH P47DH CAR DECK


>
> Al,Have u tryed HAMLENS;they are a Pioneer service centre down your way.A
> good guy to talk to is Brian Tel#902-453-0400,He's there audio
expert......
> Don of HARTS-TVCR-ASC
> 9 Robert St,Oromocto,NB,Canada,E2V3N2
> Tel-506-357-9785,Fax-506-357-6010
> hartstv@xxxxxxxxxxx
>
>
>
> ----- Original Message -----
> From: "Albert Walfield" <albertwalfield@xxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, May 08, 2003 3:44 PM
> Subject: [TechAssist] Re: 3rd & Final Post Need a Copy of a Schematic
> Pioneer Model DEH P47DH CAR DECK
>
>
> >
> > Tom shorted Q565 E-C and got 9 volt on pin 14 of CN651.Checked voltage
on
> > pin 13 & 14 with faceplate removed there still no voltage on those pins.
> >
> > Is there any voltages on pin 20 of IC 601 and Q657
> > that can be checked?
> > What are the pioneer part # for Q657 transistor & IC601 so I can get a
> price
> > from Argo Electronics on parts needed to give costumer an estimate .
> >
> > thanks
> > Albert Walfield
> >
> > Albert Walfield's Electronics
> > RR#3
> > Bridgewater
> > Nova Scotia
> > CANADA
> > B4V 2W2
> > Fax# 902 543-9831
> > ----- Original Message -----
> > From: "Thomas Sherman" <bayside.electronics@xxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, May 08, 2003 2:34 PM
> > Subject: [TechAssist] Re: 3rd & Final Post Need a Copy of a Schematic
> > Pioneer Model DEH P47DH CAR DECK
> >
> >
> > > Q656 is simply a switch which is controlled by Q657, which is
controlled
> > > by the system micro, IC601, pin 20. If you short Q656 E-C, you should
> > > get 9 volts on pin 14 of CN651. If you do, then the problem is likely
> > > Q657 or IC601. By the way, do you have voltage on pins 13 & 14 with
the
> > > faceplate removed? If so there may be a problem on the faceplate PCB.
> > >
> > > Tom @ Bayside Electronics
> > >
> > > Tom Sherman
> > > Bayside Electronics
> > > 305 Highway 303, Unit 4
> > > Digby, Nova Scotia
> > > Canada  B0V 1A0
> > > Phone/Fax (902) 245-5375
> > > bayside.electronics@xxxxxxxxxxxxxxx
> > >
> > >
> > >
> > > Albert Walfield wrote:
> > >
> > > >Have B+ on backup line
> > > >Proper voltage on collector and emitter Q653, voltage on Q656 emitter
> to
> > > >ground 13.59 volts  base to ground 13.66 volts
> > > >collector to ground 0.00 volts. R575 33ohm resistor checked good no
> > voltage
> > > >at pin 13 at front panel connector & no voltage on pin 14 with front
> > panel
> > > >connected.Q565 checks ok
> > > > At emitter of Q991 voltage was 8.5 volts.
> > > >
> > > >Font panel was connected for al reading and checks.
> > > >
> > > >What can I check next
> > > >
> > > >Albert
> > > >
> > > >----- Original Message -----
> > > >From: "Thomas Sherman" <bayside.electronics@xxxxxxxxxxxxxxx>
> > > >To: <techassist@xxxxxxxxxxxxx>
> > > >Sent: Thursday, May 08, 2003 9:52 AM
> > > >Subject: [TechAssist] Re: 3rd & Final Post Need a Copy of a Schematic
> > > >Pioneer Model DEH P47DH CAR DECK
> > > >
> > > >
> > > >
> > > >
> > > >>Albert, do you have B+ on the backup line? That's the yellow wire on
> the
> > > >>harness. This supplies B+ to the illumination power supply, back
light
> > > >>power supply and the regulator circuit for the CD mechanism. Check
for
> > > >>12-14 volts on Q653 emitter and also on the collector, also on Q656
> > > >>emitter and collector,  and on Q991 collector. The emitter of Q991
> > > >>should be approx. 8.7 volts. Q656 supplies the back light through
pin
> 13
> > > >>of the front panel connector, Q656 supplies illumination through
R675
> > > >>to pin 14 of the connector at 9.1 volts, Q991 supplies 8.7 volts
from
> > > >>the emitter to pin 1 of CN681 to the CD mech.
> > > >>Tom @ Bayside Electronics, Digby, NS
> > > >>
> > > >>Albert Walfield wrote:
> > > >>
> > > >>
> > > >>
> > > >>>Dead
> > > >>>
> > > >>>12 & 5 volts supplies on board. No clock,
> > > >>>lights, display of any kind & cd player also dead will not spin or
> load
> > > >>>
> > > >>>
> > > >or
> > > >
> > > >
> > > >>>eject cd has on already in it when it went dead .
> > > >>>Checked board for cold solder joints and for faulty componenets
> checked
> > > >>>
> > > >>>
> > > >but
> > > >
> > > >
> > > >>>I am at a disadvantage as I do not have a schematic for this model
to
> > > >>>
> > > >>>
> > > >take
> > > >
> > > >
> > > >>>voltages in the circuits.
> > > >>>.
> > > >>>Any help would be appreciated
> > > >>>
> > > >>>thanks
> > > >>>Albert Walfield
> > > >>>
> > > >>>Albert Walfield's Electronics
> > > >>>RR#3
> > > >>>Bridgewater
> > > >>>Nova Scotia
> > > >>>CANADA
> > > >>>B4V 2W2
> > > >>>Fax# 902 543-9831
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > >
> >
>
>>**************************************************************************
> > *
> > > >>
> > > >>
> > > >**
> > > >
> > > >
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> > > >>>
> > > >>--
> > > >>Tom Sherman
> > > >>Bayside Electronics
> > > >>305 Highway 303, Unit 4
> > > >>Digby, Nova Scotia
> > > >>Canada  B0V 1A0
> > > >>Phone/Fax (902) 245-5375
> > > >>bayside.electronics@xxxxxxxxxxxxxxx
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > >
> >
>
>***************************************************************************
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> > > >>The Tech Address Book:
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> >
>
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> > > >
> > >
> > > --
> > > Tom Sherman
> > > Bayside Electronics
> > > 305 Highway 303, Unit 4
> > > Digby, Nova Scotia
> > > Canada  B0V 1A0
> > > Phone/Fax (902) 245-5375
> > > bayside.electronics@xxxxxxxxxxxxxxx
> > >
> > >
> > >
> > >
> > >
> >
>
****************************************************************************
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