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Looking for service manual of Kenwood/Trio KA-7100

ph2113

ph2113

Active Member
I am a new comer in this forum and found many useful informations here,that encouraged me to collect vintage solid state......in less than two months I bought
Marantz 2238b receiver
Trio(Kenwood) KA-7100 Int amp
Luxman R-800E receiver
Onkyo A-7 Int Amp
Onkyo T-9 Tuner
Pioneer 4000A/M PL Turntable

In past few wks I started to keep some key components like trs for my beloved collections,I have downloaded service manuals of Luxman R-800,Onkyo A-7,Onkyo T-9, with them I have eliminated noises from R and L tone amp of my Luxman R-800 by replacing two c1345E Trs on Tone AMP board and brought right Pre amp of Onkyo A-7 back to life by replacing one pair of 2sa726 and one 2sc1681.

I am still looking for Service manuals of Kenwood KA-7100 and Marantz 2238B.appreciate if any one could send me one copy in pdf.

Jack
from Taiwan
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What trs I have on hand now:

2sk30A for Luxman R800
2sk34A
2sk68A(M) for Kenwood KA-7100
3sk45B Luxman R-800

2sa561 for Onkyo T-9
2sa663 Y(60W power tr) for Luxman R800
2sa720 R/S for Onkyo A-7/Kenwood KA-7100(for 2sa721)A
2sa721 S for Kenwood KA-7100
2sa726 F/G Onkyo A-7,T-9
2sa733 P for KA-7100,T-9,R-800
2sa747 (100W TO-3 power tr)
2sa755 B for KA-7100
2sa798
2sa794 R for KA-7100
2sa842 GR for A-7,KA-7100(for 2sa841)
2sa872A E for KA-7100,A-7
2sa908 (150V 15A 150W power tr)
2sa916 Y for KA-7100(for 2sa915)
2sa979

2sb556 R 100W power tr for KA-7100(2sb557),Onkyo A-7

2sc380 Y for Onkyo T-9
2sc535 C for R-800
2sc735 for Luxman R-800
2sc828A R for Onkyo A-7
2sc945 P for R-800,A-7,KA-7100,T-9
2sc1000 GR for A-7,Luxman R-800
2sc1222 for KA-7100
2sc1318 R for Onkyo A-7,T-9(for 2sc1317 R)
2sc1345E for R-800
2sc1384 R
2sc1567 R for KA-7100
2sc1583
2sc1585 (200V 15A 150W power tr)
2sc1681 GR for A-7,KA-7100
2sc1740 for A-7
2sc1775A E for KA-7100,Onkyo A-7
2sc2291

2sd235 O for KA-7100(for 2sd234),T-9

HA12010 (Pioneer sa-7800/8800/9800)


What trs I am looking for
2sa620k
2sa640L
2sa841 GR/BL
2sa912
2sb528
2sb536
2sc793 Y (60W power tr)
2sc1400
2sc1885
2sd234
2sd358
2sd361
2sd425/or 426 R/O(100W power trs)
3sk30
uPA63H(dual FETs)
 
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transistor parts

goto NTE.com, and look up their replacement. Then list the replacement NTE transistor in your request - you may get a faster reponse
 
bilgo said:
goto NTE.com, and look up their replacement. Then list the replacement NTE transistor in your request - you may get a faster reponse
Click to expand...

I have heard of negative comments about NTE trs in this forum,I don't know if it's true or not,original trs might reduce the risks that's what I thought.

Appreciate your help!

Jack
 
I've had exactly the same noise problem with my Luxman R800.Replacing the transistors cured the problem.Also a bad cap in the preamp power supply needed replacing,since for some reason it contributed to the noise problem.

I can help you with a schematic(no serv manual) for Marantz 2238B,if you're happy with that.
 
Rolf Zetterberg said:
I've had exactly the same noise problem with my Luxman R800.Replacing the transistors cured the problem.Also a bad cap in the preamp power supply needed replacing,since for some reason it contributed to the noise problem.

I can help you with a schematic(no serv manual) for Marantz 2238B,if you're happy with that.
Click to expand...

I am more than happy to have it!with the schematic I may find out what trs used in 2238B,please send the schematic to my mail:
pca@seed.net.tw

Thanks a lot,

Jack
 
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