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help please marantz 2325 p700 right channel wont work

S

simo1602

New Member
Hello to everyone needs some advice help with my marantz 2325 reciver
Seems to be a problem in the p700 right channel when i turned on the receiver the protection relay won't engage until i disconnect the connector from the right channel p700 bord if disconnected the protection relay engage and only left channel works i changed all the diods and caps from kit that bought from ebay nothing works
the last check i did is i get 60 volt on the R713 trimmer
Thanks for your help
 

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It looks like someone changed out the driver transistors on the P700 board and also re-installed H706 and H707. The center lead on H708 should have been trimmed off. I would check for shorts to the heat sink on H706 and H707. Also confirm that the proper transistors are installed in the proper positions for H708 and H709.

Did the 2325 work before the P700 board was worked on?
 
hi thanks for your help
it was workink for a week then the right channel was out the protection relay dident engaghd until i puld the right chanell off the H708 i replaced with mje15032 and H709 replaced wit mje15033 i replaced all the diods H720 721 719 718 with 1n4148 c703 c707 c706 caps also H715: BD137G
H714: BD139G H704: SA720 H705: C1318 H701:A872 H702:A872 i dident tuch the the h 710 711 712 713
i puld out the r713 trimmer to clean it it stuck on 0.876 k ohm now it shows some progress
i realy want to fix it thank you
 
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