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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Wed Jun 06, 2012 8:46 pm Post subject: |
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| macgyver655 wrote: | | Actually the 2 I need disconnected are the NF's but they should be NF5. |
I was thinking it was the NFs since the preamp board says not connected for pins 1-6 lol
Nope, they are NF2, there are no NF5s, theres NF1,NF2,NF3,NF4,NF7 thats all I can see on CP101 - CP105
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Wed Jun 06, 2012 8:51 pm Post subject: |
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With Pins 8 & 9 NF2 on CP502 bent down so they do not connect into the socket, it still goes into protection.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Jun 06, 2012 9:13 pm Post subject: |
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| Jeremy112 wrote: | | With Pins 8 & 9 NF2 on CP502 bent down so they do not connect into the socket, it still goes into protection. |
Yeah but, whats the voltage on TP102?
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Wed Jun 06, 2012 9:33 pm Post subject: |
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TP102 reads 3.8v still
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Jun 06, 2012 9:57 pm Post subject: |
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Are you sure that NF7 is for the FR? I'm showing NF7 as being for the SBR. And NF5 is for the FR. Are you looking on the main board, CP502? On the preamp board it's connector CN502.
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Wed Jun 06, 2012 10:26 pm Post subject: |
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on the main board, not the preamp board, CP502 shows 2 NF2 pins, NF7 is for the SR channel, and I do not see any NF5s on any of the CP501-505 connections
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Jun 07, 2012 12:01 am Post subject: |
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| Jeremy112 wrote: | | on the main board, not the preamp board, CP502 shows 2 NF2 pins, NF7 is for the SR channel, and I do not see any NF5s on any of the CP501-505 connections |
Ok, I'mback. Had to run out.
On the main board in the FR section look for capacitor C101FR. With you DMM set for continuity or diode test, test from the neg of C101FR to connector CP502 and see if you get continuity on any of the pins.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Jun 07, 2012 12:39 am Post subject: |
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How is your board marked for CP505 on the main board?
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Thu Jun 07, 2012 12:44 am Post subject: |
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CP505 on the mainboard goes as follows:
SR
SR
GND
NF7
NF7
DC PROT
OVER PROT
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Thu Jun 07, 2012 12:51 am Post subject: |
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As far as continuity goes between the neg lead of C101FR to the pins on CP502, the DMM would display a number for a split second then it would say 1 or open
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Jun 07, 2012 1:25 am Post subject: |
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| Jeremy112 wrote: | | As far as continuity goes between the neg lead of C101FR to the pins on CP502, the DMM would display a number for a split second then it would say 1 or open |
Then you need to find the connector and then the pins (should be 2 pins) that show short to C101FR. Then bend those pins over and see if you have 0 volts on TP102. I'll check back tomorrow.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Jun 07, 2012 1:27 am Post subject: |
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But it should be on the connector that is for the FR.
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macgyver655
Joined: 22 Aug 2007
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Thu Jun 07, 2012 1:43 am Post subject: |
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ok mac,
I looked at that schematic piece there, I see that the neg of the cap connects to pins 8 and 9, I tested continuity on those (I changed my test leads to better ones from my dead meter) and pins 8 and 9 NF2 (as labelled on my board, I think its a typo on the schematic, which wouldnt surprise me, the AVR 5805 manual has a typo.) read 050 they jump up and down a bit but dont go lower
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Jun 07, 2012 5:28 pm Post subject: |
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So here we are again today.
Then your conclusion is that NF2, pins 8 and 9 are in fact directly connected to C101FR neg pin, correct?
And if so, and with these 2 pins bent over, you still have 3. something volts on TP102, correct?
And if so, then you need to locate and remove R117FR and check your TP voltage again.
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Thu Jun 07, 2012 7:11 pm Post subject: |
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| macgyver655 wrote: | So here we are again today.
Then your conclusion is that NF2, pins 8 and 9 are in fact directly connected to C101FR neg pin, correct?
And if so, and with these 2 pins bent over, you still have 3. something volts on TP102, correct?
And if so, then you need to locate and remove R117FR and check your TP voltage again. |
Correct
Correct
And will remove that resistor and check the TP voltage again.
Mac also, I am messing with the working AVR 5805 I have here, and I say that because really if there are no tone adjustments or surround modes (everything at factory except for channel level and input level) it sounds fine...
It just has no tone adjustments to the music so im listening to it at flat. Which really its the best flat sounding music I've ever heard.... but I think that defeats the purpose of an AV Surround receiver:P
Anyway, any tone adjustment/EQ adjustment/Surround mode setting makes the sound go almost dead silent unless the volume is literally maxed out. If I turn those features off it sounds fine at flat or "direct" mode.
I know its completely off topic, but since Im 98% sure it is fully working (so far everything aside from that seems good) I thought I would just ask...
I'll go ahead and do that resistor removal on the AVR2307CI and report back the TP voltages
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Thu Jun 07, 2012 8:32 pm Post subject: |
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Mac, with R117FR out of the circuit, the TP102 reading is still 3.8vdc
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Thu Jun 07, 2012 8:33 pm Post subject: |
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Mac, looking at the meter, with the receiver unplugged, it still has a voltage reading that is slowly bleeding down, could that indicate its a capacitor that has taken a dump?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Jun 07, 2012 8:58 pm Post subject: |
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| Jeremy112 wrote: | | Mac, with R117FR out of the circuit, the TP102 reading is still 3.8vdc |
Did it still shut down with this resistor removed?
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Thu Jun 07, 2012 9:08 pm Post subject: |
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Yes, unfortunately it still did 
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