[TechAssist] Re: 3rd & Final Post Need a Copy of a Schematic Pioneer Model DEH P47DH CAR DECK
- From: <hartstv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 8 May 2003 16:23:51 -0300
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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> >
> > --
> > 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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