| Author |
Message |
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Tue Jun 05, 2012 10:23 pm Post subject: |
|
|
Mac,
I wasn't sure if I was supposed to remove the D102FR that was bad, so I didnt, I did disconnect Q101FR-Q103FR and Q184, and it still goes into protection, but it did seem to take a couple seconds longer.
Now I know this might be a stupid question... but does the preamp board have to be in the receiver so it doesn't kick into protection? lol
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it 
|
|
| Back to top |
|
 |
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Tue Jun 05, 2012 10:24 pm Post subject: |
|
|
|
Also since Q184 is bad check R184(4.7ohm) and R189(100 ohm)
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Tue Jun 05, 2012 10:30 pm Post subject: |
|
|
| Jeremy112 wrote: | Mac,
I wasn't sure if I was supposed to remove the D102FR that was bad, so I didnt, I did disconnect Q101FR-Q103FR and Q184, and it still goes into protection, but it did seem to take a couple seconds longer.
Now I know this might be a stupid question... but does the preamp board have to be in the receiver so it doesn't kick into protection? lol |
Yes you need the pre amp board installed, And yes, remove D102FR. You may also have to remove D101FR for testing the receiver but try it first.
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Tue Jun 05, 2012 11:45 pm Post subject: |
|
|
| macgyver655 wrote: | | Also since Q184 is bad check R184(4.7ohm) and R189(100 ohm) |
R184 and R189 are fine, I removed D102FR, removed the bad Q504FR replaced the resistor that blew on the preamp, checked the other resistors in the other channels on the preamp, but the receiver still goes into protection, would D101FR have anything to do with that?
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 12:02 am Post subject: |
|
|
Mac, good update, I disconnected CP103 for the hell of because you told me to do that in the way beginning, but it had no effect. Well, the receiver is on and aliiiiive  soooo what could be the issue?
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Wed Jun 06, 2012 3:50 pm Post subject: |
|
|
|
Plug CP103 back in and recheck all your TP's for any voltage, including the 2 on the surround back board(which is a separate board).
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 3:50 pm Post subject: |
|
|
Morning Forum addicts!
Mac, any luck on this beast?
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Wed Jun 06, 2012 3:53 pm Post subject: |
|
|
|
I beat you to it..... LOL.
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 4:22 pm Post subject: |
|
|
Mac, I checked all the Test points again, TP102 was the only one that had voltage on it, 114.6vdc all others, including the 2 surround back ones (which were actually rather easy to locate for once) all have 0.00vdc on them
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Wed Jun 06, 2012 4:27 pm Post subject: |
|
|
| Jeremy112 wrote: | | Mac, I checked all the Test points again, TP102 was the only one that had voltage on it, 114.6vdc all others, including the 2 surround back ones (which were actually rather easy to locate for once) all have 0.00vdc on them |
I believe this is why I said you may have to remove D101FR also. remove it and test for voltage again.
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 4:28 pm Post subject: |
|
|
| macgyver655 wrote: | | Jeremy112 wrote: | | Mac, I checked all the Test points again, TP102 was the only one that had voltage on it, 114.6vdc all others, including the 2 surround back ones (which were actually rather easy to locate for once) all have 0.00vdc on them |
I believe this is why I said you may have to remove D101FR also. remove it and test for voltage again. |
Ahhh, gotcha, Ill report back in 30, its about 10-15 minutes for dissasembly then reassembly lol
I understand that the way its assembled works great for denon in the factory.... not so in the repair world :-p
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 4:57 pm Post subject: |
|
|
Mac,
Removing D101FR did not have an effect, whats next?
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Wed Jun 06, 2012 5:01 pm Post subject: |
|
|
| Jeremy112 wrote: | Mac,
Removing D101FR did not have an effect, whats next? |
Hmm, you still have 115v on TP102. And you have Q101FR, Q102FR, Q103FR, Q104FR, D101FR and D102FR removed, correct?
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 5:16 pm Post subject: |
|
|
| macgyver655 wrote: | | Jeremy112 wrote: | Mac,
Removing D101FR did not have an effect, whats next? |
Hmm, you still have 115v on TP102. And you have Q101FR, Q102FR, Q103FR, Q104FR, D101FR and D102FR removed, correct? |
All of that is removed except for Q104FR, I checked it quick and it appears to read OK, I will remove it and try again.
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 7:47 pm Post subject: |
|
|
Mac,
I removed Q104FR and the receiver still goes into protection, so that makes allt he above parts removed. Gotta love a receiver that won't cooperate
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Wed Jun 06, 2012 7:53 pm Post subject: |
|
|
|
And what do you have on TP102?
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 8:10 pm Post subject: |
|
|
| macgyver655 wrote: | | And what do you have on TP102? |
I have 3.8vdc when powered on, and it was at 1.4vdc when it was off.
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Wed Jun 06, 2012 8:21 pm Post subject: |
|
|
Well now we know where that 115v was coming from. Did you test Q104FR for short between legs after you pulled it out?
We also need to find out if that 3.8v is shutting it down. Is there any way to disconnect CP502, pins 8 and 9 only?
|
|
| Back to top |
|
|
Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
|
| Posted: Wed Jun 06, 2012 8:36 pm Post subject: |
|
|
| macgyver655 wrote: | Well now we know where that 115v was coming from. Did you test Q104FR for short between legs after you pulled it out?
We also need to find out if that 3.8v is shutting it down. Is there any way to disconnect CP502, pins 8 and 9 only? |
EDIT: Q104FR (I had put 504FR my bad) reads open when out of the unit. no shorts, just open, no matter which way pins are tested. As far as CP502, it is mounted onto the board of the preamp, which plugs into the main board kind of like a card in a computer, so not really able to remove those 2 pins.
I could bend them though...
I assume pins 8 and 9 are the last 2 +2 pins besides the one other?
1 FR
2 FR
3 GND
4 NF2
5 NF2
6 +15V
7 +B
8 +B
9 +B
10 -B
11 -B
12 -B
Correct?
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Wed Jun 06, 2012 8:43 pm Post subject: |
|
|
|
Actually the 2 I need disconnected are the NF's but they should be NF5.
|
|
| Back to top |
|
|
|
|
