Hi,
I just purchased a grey iMac DV that will not power on. When the power cable
is first plugged in, you can hear a "click" as if it's trying to do
something. When I push the power button on the front, it will glow green for
about half a second. A "pop" is heard from the speakers, as if the machine
was trying to start up. The light then goes out and nothing happens. Future
pushes of the power button yield no result. However, if the power is
unplugged and then plugged back in the process can be repeated.

After googling a little, I learned that the battery might be the cause. I
removed it and it was dead. I replaced it with a good battery pulled from an
old Apple IIgs. I let the computer sit for a few minutes then pushed the
reset button that is near the DIMM slots. The result is the same.

I reseated that card that is just behind the DIMMs. No go.

I removed the RAM. No go.

Anyone had problems like this before? Any suggestions of how to fix it?

Thanks.
Greg

I had trouble with my power button itself. The Apple tech said they had
had a lot of trouble with this model of iMac. Make sure the power button
isn't "catching" under the face of the computer. If you can wiggle it
just right, (I used a very small flat blade screwdriver and worked
around the button) the computer might boot. Then, use only the power
button on the keyboard.

In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>,
"Greg Andrzejewski" <pressyourluck85******.com> wrote:

> Hi,
> I just purchased a grey iMac DV that will not power on. When the power cable
> is first plugged in, you can hear a "click" as if it's trying to do
> something. When I push the power button on the front, it will glow green for
> about half a second. A "pop" is heard from the speakers, as if the machine
> was trying to start up. The light then goes out and nothing happens. Future
> pushes of the power button yield no result. However, if the power is
> unplugged and then plugged back in the process can be repeated.
>
> After googling a little, I learned that the battery might be the cause. I
> removed it and it was dead. I replaced it with a good battery pulled from an
> old Apple IIgs. I let the computer sit for a few minutes then pushed the
> reset button that is near the DIMM slots. The result is the same.
>
> I reseated that card that is just behind the DIMMs. No go.
>
> I removed the RAM. No go.
>
> Anyone had problems like this before? Any suggestions of how to fix it?
>
> Thanks.
> Greg

I had trouble with my power button itself. The Apple tech said they had
had a lot of trouble with this model of iMac. Make sure the power button
isn't "catching" under the face of the computer. If you can wiggle it
just right, (I used a very small flat blade screwdriver and worked
around the button) the computer might boot. Then, use only the power
button on the keyboard.

In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>,
"Greg Andrzejewski" <pressyourluck85******.com> wrote:

> Hi,
> I just purchased a grey iMac DV that will not power on. When the power cable
> is first plugged in, you can hear a "click" as if it's trying to do
> something. When I push the power button on the front, it will glow green for
> about half a second. A "pop" is heard from the speakers, as if the machine
> was trying to start up. The light then goes out and nothing happens. Future
> pushes of the power button yield no result. However, if the power is
> unplugged and then plugged back in the process can be repeated.
>
> After googling a little, I learned that the battery might be the cause. I
> removed it and it was dead. I replaced it with a good battery pulled from an
> old Apple IIgs. I let the computer sit for a few minutes then pushed the
> reset button that is near the DIMM slots. The result is the same.
>
> I reseated that card that is just behind the DIMMs. No go.
>
> I removed the RAM. No go.
>
> Anyone had problems like this before? Any suggestions of how to fix it?
>
> Thanks.
> Greg

"Robert Boucher" <boucher1@alumni.utexas.net> wrote in message
news:boucher1-F71FBA.19441324022006@news-fe-03.texas.rr.com...
>I had trouble with my power button itself. The Apple tech said they had
> had a lot of trouble with this model of iMac. Make sure the power button
> isn't "catching" under the face of the computer. If you can wiggle it
> just right, (I used a very small flat blade screwdriver and worked
> around the button) the computer might boot. Then, use only the power
> button on the keyboard.
>
I'll give it a shot, though I think it might be something more than that
because if I remove the computer from power, I can press the button again
and it'll try to turn on. Only once per power cycle, though.

Thanks,
Greg
> In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>,
> "Greg Andrzejewski" <pressyourluck85******.com> wrote:
>
>> Hi,
>> I just purchased a grey iMac DV that will not power on. When the power
>> cable
>> is first plugged in, you can hear a "click" as if it's trying to do
>> something. When I push the power button on the front, it will glow green
>> for
>> about half a second. A "pop" is heard from the speakers, as if the
>> machine
>> was trying to start up. The light then goes out and nothing happens.
>> Future
>> pushes of the power button yield no result. However, if the power is
>> unplugged and then plugged back in the process can be repeated.
>>
>> After googling a little, I learned that the battery might be the cause. I
>> removed it and it was dead. I replaced it with a good battery pulled from
>> an
>> old Apple IIgs. I let the computer sit for a few minutes then pushed the
>> reset button that is near the DIMM slots. The result is the same.
>>
>> I reseated that card that is just behind the DIMMs. No go.
>>
>> I removed the RAM. No go.
>>
>> Anyone had problems like this before? Any suggestions of how to fix it?
>>
>> Thanks.
>> Greg

"Robert Boucher" <boucher1@alumni.utexas.net> wrote in message
news:boucher1-F71FBA.19441324022006@news-fe-03.texas.rr.com...
>I had trouble with my power button itself. The Apple tech said they had
> had a lot of trouble with this model of iMac. Make sure the power button
> isn't "catching" under the face of the computer. If you can wiggle it
> just right, (I used a very small flat blade screwdriver and worked
> around the button) the computer might boot. Then, use only the power
> button on the keyboard.
>
I'll give it a shot, though I think it might be something more than that
because if I remove the computer from power, I can press the button again
and it'll try to turn on. Only once per power cycle, though.

Thanks,
Greg
> In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>,
> "Greg Andrzejewski" <pressyourluck85******.com> wrote:
>
>> Hi,
>> I just purchased a grey iMac DV that will not power on. When the power
>> cable
>> is first plugged in, you can hear a "click" as if it's trying to do
>> something. When I push the power button on the front, it will glow green
>> for
>> about half a second. A "pop" is heard from the speakers, as if the
>> machine
>> was trying to start up. The light then goes out and nothing happens.
>> Future
>> pushes of the power button yield no result. However, if the power is
>> unplugged and then plugged back in the process can be repeated.
>>
>> After googling a little, I learned that the battery might be the cause. I
>> removed it and it was dead. I replaced it with a good battery pulled from
>> an
>> old Apple IIgs. I let the computer sit for a few minutes then pushed the
>> reset button that is near the DIMM slots. The result is the same.
>>
>> I reseated that card that is just behind the DIMMs. No go.
>>
>> I removed the RAM. No go.
>>
>> Anyone had problems like this before? Any suggestions of how to fix it?
>>
>> Thanks.
>> Greg

In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>, "Greg Andrzejewski"
<pressyourluck85******.com> wrote:
G'day Greg,

I have a similar iMac DV with the same problem - from all my googling, it
indicates a bad PAV (power/analogue/video) board ... I've just bought a
replacement and will be installing this weekend ($30AUS on eBay -
bargain!) ...

I'll let you know howit goes ...

Mikey Mike
Down Unda ;)


> Hi,
> I just purchased a grey iMac DV that will not power on. When the power cable
> is first plugged in, you can hear a "click" as if it's trying to do
> something. When I push the power button on the front, it will glow green for
> about half a second. A "pop" is heard from the speakers, as if the machine
> was trying to start up. The light then goes out and nothing happens. Future
> pushes of the power button yield no result. However, if the power is
> unplugged and then plugged back in the process can be repeated.
>
> After googling a little, I learned that the battery might be the cause. I
> removed it and it was dead. I replaced it with a good battery pulled from an
> old Apple IIgs. I let the computer sit for a few minutes then pushed the
> reset button that is near the DIMM slots. The result is the same.
>
> I reseated that card that is just behind the DIMMs. No go.
>
> I removed the RAM. No go.
>
> Anyone had problems like this before? Any suggestions of how to fix it?
>
> Thanks.
> Greg

In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>, "Greg Andrzejewski"
<pressyourluck85******.com> wrote:
G'day Greg,

I have a similar iMac DV with the same problem - from all my googling, it
indicates a bad PAV (power/analogue/video) board ... I've just bought a
replacement and will be installing this weekend ($30AUS on eBay -
bargain!) ...

I'll let you know howit goes ...

Mikey Mike
Down Unda ;)


> Hi,
> I just purchased a grey iMac DV that will not power on. When the power cable
> is first plugged in, you can hear a "click" as if it's trying to do
> something. When I push the power button on the front, it will glow green for
> about half a second. A "pop" is heard from the speakers, as if the machine
> was trying to start up. The light then goes out and nothing happens. Future
> pushes of the power button yield no result. However, if the power is
> unplugged and then plugged back in the process can be repeated.
>
> After googling a little, I learned that the battery might be the cause. I
> removed it and it was dead. I replaced it with a good battery pulled from an
> old Apple IIgs. I let the computer sit for a few minutes then pushed the
> reset button that is near the DIMM slots. The result is the same.
>
> I reseated that card that is just behind the DIMMs. No go.
>
> I removed the RAM. No go.
>
> Anyone had problems like this before? Any suggestions of how to fix it?
>
> Thanks.
> Greg

Mikey Mike <they.are@it.again.com> wrote:

> In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>, "Greg Andrzejewski"
> <pressyourluck85******.com> wrote:
> G'day Greg,
>
> I have a similar iMac DV with the same problem - from all my googling, it
> indicates a bad PAV (power/analogue/video) board ... I've just bought a
> replacement and will be installing this weekend ($30AUS on eBay -
> bargain!) ...
>
> I'll let you know howit goes ...
>
> Mikey Mike
> Down Unda ;)
>
>

Just be careful not to kill yourself. Lots of high voltage inside that
case. Look for some good instructions on how to discharge the monitor
first.

Peter

--
Peter McCallum
Mackay Qld AUSTRALIA

Mikey Mike <they.are@it.again.com> wrote:

> In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>, "Greg Andrzejewski"
> <pressyourluck85******.com> wrote:
> G'day Greg,
>
> I have a similar iMac DV with the same problem - from all my googling, it
> indicates a bad PAV (power/analogue/video) board ... I've just bought a
> replacement and will be installing this weekend ($30AUS on eBay -
> bargain!) ...
>
> I'll let you know howit goes ...
>
> Mikey Mike
> Down Unda ;)
>
>

Just be careful not to kill yourself. Lots of high voltage inside that
case. Look for some good instructions on how to discharge the monitor
first.

Peter

--
Peter McCallum
Mackay Qld AUSTRALIA

"Mikey Mike" <they.are@it.again.com> wrote in message
news:they.are-2502061533310001@192.168.0.6...
> In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>, "Greg Andrzejewski"
> <pressyourluck85******.com> wrote:
> G'day Greg,
>
> I have a similar iMac DV with the same problem - from all my googling, it
> indicates a bad PAV (power/analogue/video) board ... I've just bought a
> replacement and will be installing this weekend ($30AUS on eBay -
> bargain!) ...
>
> I'll let you know howit goes ...
>
> Mikey Mike
> Down Unda ;)
>
Yeah, I saw that too, but I'm hoping that's not the case. Most sites said it
was prohibitively expensive to replace the PAV. Is this still generally the
case? I'm hoping they have dropped in price over the couple of years since
some of the articles were written.
Can I use a PAV board from any CRT iMac or does it have to be from another
DV?
I'm still not ruling out a failed OS X install. Some of the sites said that
if the firmware was not updated prior to installing OS X, the iMac might not
turn on. I bought this computer in a lot with 2 beige g3 333's and a power
mac 6500/300. One of the g3's had OS X 10.3.9 and I'm thinking that the
previous owner might have tried to install X on the iMac, as well. IIRC, the
beige g3's weren't supported past Jaguar. If the previous owner knew enough
to get 10.3.9 installed on a beige g3, I think they could probably get it
running on an iMac DV.

-Greg
>
>> Hi,
>> I just purchased a grey iMac DV that will not power on. When the power
>> cable
>> is first plugged in, you can hear a "click" as if it's trying to do
>> something. When I push the power button on the front, it will glow green
>> for
>> about half a second. A "pop" is heard from the speakers, as if the
>> machine
>> was trying to start up. The light then goes out and nothing happens.
>> Future
>> pushes of the power button yield no result. However, if the power is
>> unplugged and then plugged back in the process can be repeated.
>>
>> After googling a little, I learned that the battery might be the cause. I
>> removed it and it was dead. I replaced it with a good battery pulled from
>> an
>> old Apple IIgs. I let the computer sit for a few minutes then pushed the
>> reset button that is near the DIMM slots. The result is the same.
>>
>> I reseated that card that is just behind the DIMMs. No go.
>>
>> I removed the RAM. No go.
>>
>> Anyone had problems like this before? Any suggestions of how to fix it?
>>
>> Thanks.
>> Greg

"Mikey Mike" <they.are@it.again.com> wrote in message
news:they.are-2502061533310001@192.168.0.6...
> In article <R6ydnarV7uskMGLeRVn-pA@comcast.com>, "Greg Andrzejewski"
> <pressyourluck85******.com> wrote:
> G'day Greg,
>
> I have a similar iMac DV with the same problem - from all my googling, it
> indicates a bad PAV (power/analogue/video) board ... I've just bought a
> replacement and will be installing this weekend ($30AUS on eBay -
> bargain!) ...
>
> I'll let you know howit goes ...
>
> Mikey Mike
> Down Unda ;)
>
Yeah, I saw that too, but I'm hoping that's not the case. Most sites said it
was prohibitively expensive to replace the PAV. Is this still generally the
case? I'm hoping they have dropped in price over the couple of years since
some of the articles were written.
Can I use a PAV board from any CRT iMac or does it have to be from another
DV?
I'm still not ruling out a failed OS X install. Some of the sites said that
if the firmware was not updated prior to installing OS X, the iMac might not
turn on. I bought this computer in a lot with 2 beige g3 333's and a power
mac 6500/300. One of the g3's had OS X 10.3.9 and I'm thinking that the
previous owner might have tried to install X on the iMac, as well. IIRC, the
beige g3's weren't supported past Jaguar. If the previous owner knew enough
to get 10.3.9 installed on a beige g3, I think they could probably get it
running on an iMac DV.

-Greg
>
>> Hi,
>> I just purchased a grey iMac DV that will not power on. When the power
>> cable
>> is first plugged in, you can hear a "click" as if it's trying to do
>> something. When I push the power button on the front, it will glow green
>> for
>> about half a second. A "pop" is heard from the speakers, as if the
>> machine
>> was trying to start up. The light then goes out and nothing happens.
>> Future
>> pushes of the power button yield no result. However, if the power is
>> unplugged and then plugged back in the process can be repeated.
>>
>> After googling a little, I learned that the battery might be the cause. I
>> removed it and it was dead. I replaced it with a good battery pulled from
>> an
>> old Apple IIgs. I let the computer sit for a few minutes then pushed the
>> reset button that is near the DIMM slots. The result is the same.
>>
>> I reseated that card that is just behind the DIMMs. No go.
>>
>> I removed the RAM. No go.
>>
>> Anyone had problems like this before? Any suggestions of how to fix it?
>>
>> Thanks.
>> Greg

Peter McCallum wrote:

> Mikey Mike <they.are@it.again.com> wrote:
> > I have a similar iMac DV with the same problem - from all my googling, it
> > indicates a bad PAV (power/analogue/video) board ... I've just bought a
> > replacement and will be installing this weekend ($30AUS on eBay -
> > bargain!) ...
> >
> > I'll let you know how it goes ...
>
> Just be careful not to kill yourself. Lots of high voltage inside that
> case. Look for some good instructions on how to discharge the monitor
> first.

Thanks for the sage advice Peter!

Already downloaded the service manual, and the once working unit has been
down for over 2 weeks (yes - I know it still can hold a kick, but I've
already discharged it - not a spark!).

According to the seller, the new PAV/Monitor (with a lot of xtra bits:
power button, sound stuff, etc ...) has never been used, so I'm safe
(touch wood).

Hopefully, it'll be resurected tonnight!

Mikey Mike

Peter McCallum wrote:

> Mikey Mike <they.are@it.again.com> wrote:
> > I have a similar iMac DV with the same problem - from all my googling, it
> > indicates a bad PAV (power/analogue/video) board ... I've just bought a
> > replacement and will be installing this weekend ($30AUS on eBay -
> > bargain!) ...
> >
> > I'll let you know how it goes ...
>
> Just be careful not to kill yourself. Lots of high voltage inside that
> case. Look for some good instructions on how to discharge the monitor
> first.

Thanks for the sage advice Peter!

Already downloaded the service manual, and the once working unit has been
down for over 2 weeks (yes - I know it still can hold a kick, but I've
already discharged it - not a spark!).

According to the seller, the new PAV/Monitor (with a lot of xtra bits:
power button, sound stuff, etc ...) has never been used, so I'm safe
(touch wood).

Hopefully, it'll be resurected tonnight!

Mikey Mike

In article <they.are-2602061540390001@192.168.0.6>, they.are@it.again.com
(Mikey Mike) wrote:

> Peter McCallum wrote:
>
> > Mikey Mike <they.are@it.again.com> wrote:
> > > I have a similar iMac DV with the same problem - from all my googling, it
> > > indicates a bad PAV (power/analogue/video) board ... I've just bought a
> > > replacement and will be installing this weekend ($30AUS on eBay -
> > > bargain!) ...
> > >
> > > I'll let you know how it goes ...
> >
> > Just be careful not to kill yourself. Lots of high voltage inside that
> > case. Look for some good instructions on how to discharge the monitor
> > first.

Well, two pieces of good news:

a) I didn't kill myself, and
2) The iMac is alive (as well!)!

Had all sorts of challenges:

I) Brittle plastics - bits cracking and falling off all over the place
(especially the grey internal bits, and a black bit on the bottom of the
tube that held a wind of copper wire! I improvised with plastic ties, and
to my surprise, the screen looks fine!). Overall structural integrity of
the unit - shields holding at 70%, Captain ...

2) Subtle revisions/differences in 'bits' - the airport antenni at the
side (were bits of wire, now 2 pcb's), the power button board (new one
only had 2 pins on led, and glowed white (!) replaced with old one: green
when on, oscillating orange when asleep. The metal plate on which the mb
is mounted is different - came with big metal 'hickey' ... Thought could
have been the heat sink, but on inspection it didn't align ...

3) Heat sink - used thermal paste on bottom of aluminimum (?) plate and
top of processor.

4) Don't squash the speaker cables - they don't like it and will make
weird noises ;)

5) Video adjustments: the paint/glue/whatever that held all the yoke
things in place were not holding - had to refocus/align all colo(u)rs.
Fun. Not.

That's all I can think of for now. Any questions? Post and I'll get back
to you ;)

Mikey Mike

In article <they.are-2602061540390001@192.168.0.6>, they.are@it.again.com
(Mikey Mike) wrote:

> Peter McCallum wrote:
>
> > Mikey Mike <they.are@it.again.com> wrote:
> > > I have a similar iMac DV with the same problem - from all my googling, it
> > > indicates a bad PAV (power/analogue/video) board ... I've just bought a
> > > replacement and will be installing this weekend ($30AUS on eBay -
> > > bargain!) ...
> > >
> > > I'll let you know how it goes ...
> >
> > Just be careful not to kill yourself. Lots of high voltage inside that
> > case. Look for some good instructions on how to discharge the monitor
> > first.

Well, two pieces of good news:

a) I didn't kill myself, and
2) The iMac is alive (as well!)!

Had all sorts of challenges:

I) Brittle plastics - bits cracking and falling off all over the place
(especially the grey internal bits, and a black bit on the bottom of the
tube that held a wind of copper wire! I improvised with plastic ties, and
to my surprise, the screen looks fine!). Overall structural integrity of
the unit - shields holding at 70%, Captain ...

2) Subtle revisions/differences in 'bits' - the airport antenni at the
side (were bits of wire, now 2 pcb's), the power button board (new one
only had 2 pins on led, and glowed white (!) replaced with old one: green
when on, oscillating orange when asleep. The metal plate on which the mb
is mounted is different - came with big metal 'hickey' ... Thought could
have been the heat sink, but on inspection it didn't align ...

3) Heat sink - used thermal paste on bottom of aluminimum (?) plate and
top of processor.

4) Don't squash the speaker cables - they don't like it and will make
weird noises ;)

5) Video adjustments: the paint/glue/whatever that held all the yoke
things in place were not holding - had to refocus/align all colo(u)rs.
Fun. Not.

That's all I can think of for now. Any questions? Post and I'll get back
to you ;)

Mikey Mike