Pioneerfan10
New Member
hi guys
im currently trying to find out if im going down the right path I own an sx 1010 after a cap went on the power board im having trouble finding all affected areas of the receiver. So from what I can figure is I have a direct short on the left high output transistors (bank in heat sink near transformer) I believe I hav a high voltage problem on either the protection circuit board or the left power amp board im leaning toward the left power amp
here are the pin values I was able to get with my dmm
all in dc unless stated otherwise
left amp (Suspect)------------------- right amp (assume ok) protection board
1.-51.7____2-51.7___________10.01-------------11-50_______1-6.1mv----11+48.5
2.51.7____12.-50-------------------2.0.02------------12.-50_______2.+12.3-----12.7.6 acv
3.-53_____13.-53-------------------3.-53.0-----------13.0.5_______3.0.1
4.+75_____14.-51-------------------4.+4.9-----------14.0________4.0
5.0_______15.+52-------------------5.0---------------15.0________5.0.5
6.6_______16.+52-------------------6.0--------------16.0________6.0.5
7.+53_____17.-51--------------------7.+53-----------17.0________7.0
8.+50_____18.gnd-------------------8.+50-----------18. gnd______8.0.013
9.+50_____19.-51-------------------9.+50------------19.0.1_______9.2.8
10.+61____20.-51-----------------10.0.08------------20.0.1______10.48.5
I have a feeling that's its the left amp but im not sure if I need to fix any other board gonna place an order once I figure out if I need to do 1 board or all
also when I was on the power board I replaced just about everything on it I did take my time double checked pin location of what I was taking out as to what I put in
any insight as to if im going in the right direction and if im over looking something
im currently trying to find out if im going down the right path I own an sx 1010 after a cap went on the power board im having trouble finding all affected areas of the receiver. So from what I can figure is I have a direct short on the left high output transistors (bank in heat sink near transformer) I believe I hav a high voltage problem on either the protection circuit board or the left power amp board im leaning toward the left power amp
here are the pin values I was able to get with my dmm
all in dc unless stated otherwise
left amp (Suspect)------------------- right amp (assume ok) protection board
1.-51.7____2-51.7___________10.01-------------11-50_______1-6.1mv----11+48.5
2.51.7____12.-50-------------------2.0.02------------12.-50_______2.+12.3-----12.7.6 acv
3.-53_____13.-53-------------------3.-53.0-----------13.0.5_______3.0.1
4.+75_____14.-51-------------------4.+4.9-----------14.0________4.0
5.0_______15.+52-------------------5.0---------------15.0________5.0.5
6.6_______16.+52-------------------6.0--------------16.0________6.0.5
7.+53_____17.-51--------------------7.+53-----------17.0________7.0
8.+50_____18.gnd-------------------8.+50-----------18. gnd______8.0.013
9.+50_____19.-51-------------------9.+50------------19.0.1_______9.2.8
10.+61____20.-51-----------------10.0.08------------20.0.1______10.48.5
I have a feeling that's its the left amp but im not sure if I need to fix any other board gonna place an order once I figure out if I need to do 1 board or all
also when I was on the power board I replaced just about everything on it I did take my time double checked pin location of what I was taking out as to what I put in
any insight as to if im going in the right direction and if im over looking something
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