Steven Sze
New Member
To owners of Sansui B2101,
I need your kind help to snap a clear photo of the bottom of board 4619(the one with the heatsink).. Im not sure why is one part of the circuit being cut.
About a year ago I bought this Sansui Pre and Power B/C 2101 for about $300. Thought I had a good deal, end up the power amp B2101 is faulty.. protection light stays on.. (long story short - buyer dissappears).
Opened up saw its has bèen recapped with the lousiest capacitor ever...some china crap. I spend another couple of hundred to buy new capacitors. Basically replaced all the capacitors except for the 4 big 10,000 uf ones.
After recapping still the same problem protection light on all the time. The Bias adjustment stays at about +- 10V! when in service manual stated it should be about +- 5mV!
I've no technical back ground so the most I can only do is recap. so I put it a side for almost a year..in between i sent to 2 techinican.. one doesnt want to do after checking and another took more than 3 months and did nothing. So I took back the amp chuck it in the storeroom.
And Couple of months ago I took the amp out and I found out that 1 rectifier diode is missing from each board :/ i replace with 1N160 (is this ok?)
Anyway I just realised that below the power amp board 4619 ( the one with the sink) one of the circuit was cut.. I need someone with same amp to help me to take a photo of the bottom.Also I need a full photo to see where the 3 wires from PSU goes onto the 4619.
I need to check to see if everything is in order before I can proceed to next step.
Please help.. tq
I need your kind help to snap a clear photo of the bottom of board 4619(the one with the heatsink).. Im not sure why is one part of the circuit being cut.
About a year ago I bought this Sansui Pre and Power B/C 2101 for about $300. Thought I had a good deal, end up the power amp B2101 is faulty.. protection light stays on.. (long story short - buyer dissappears).
Opened up saw its has bèen recapped with the lousiest capacitor ever...some china crap. I spend another couple of hundred to buy new capacitors. Basically replaced all the capacitors except for the 4 big 10,000 uf ones.
After recapping still the same problem protection light on all the time. The Bias adjustment stays at about +- 10V! when in service manual stated it should be about +- 5mV!
I've no technical back ground so the most I can only do is recap. so I put it a side for almost a year..in between i sent to 2 techinican.. one doesnt want to do after checking and another took more than 3 months and did nothing. So I took back the amp chuck it in the storeroom.
And Couple of months ago I took the amp out and I found out that 1 rectifier diode is missing from each board :/ i replace with 1N160 (is this ok?)
Anyway I just realised that below the power amp board 4619 ( the one with the sink) one of the circuit was cut.. I need someone with same amp to help me to take a photo of the bottom.Also I need a full photo to see where the 3 wires from PSU goes onto the 4619.
I need to check to see if everything is in order before I can proceed to next step.
Please help.. tq