Nytech CA202 Service Manual

C112

100nF

22uF/50V

100k 40%

C102

+

10uF/35V

+

C101

RV101

D101

R104

39k

1N4148

D102

1N4148

vom Lautst.poti

P1

R102

47K

INPUT

150pF

R127

C105

10uF/35V

R103

22k

24V0

3K9

R101

+

24V7

3k9

1V2

R106

39K

C105/R108

FB

FB

R129

150

TR101

BC556

R105

1K2

0,54 mA

V

+

C107

100uF

C109

68pF

R109

180

TR102
BC556

R110

3K9

RV102

220R 40%

R111
1k5

TR103

BC546

V

3 mA

0V55

62V

+V

V1

29V6

zu TR107

TR104

BC549

C108

10nF

2V27

zu TR108

31V7

Nytech CA 202,
Endstufenmodul U-amp

Nytech CA 202
Endstufenmodul I-amp

R114

100

R112

100

von Tr102

D103

1N4148

Tr105

BC547A

Tr106

BC557A

D104

1N4148

von Tr103

+

C999
3M3

R128

1k8

C106
10nF

+

C105

100uF/25V

FB

FB

R108

10K

R107

130

R126

1k

2M2/25V

R113

10K

R115

3K9

R117

47

R118

47

R116

3K9

R121

150

R122

150

Tr107
BFR39

=BC639

R119

100

R120

100

Tr108

=BC640

V

7mA

BFR79

R123

390mR

R124

390mR

V

Tr109

BD909

Tr110

BD910

5mA

2mV

2mV

+V

V1 62V

D105

1N4002

30V6

R125

4R7

C111

100nF

D106

1N4002

zu R129/
E,Tr101

Modifikationshinweise für noch bessere Wiedergabeeigenschaften
technical advice for better sonic performance:

1)TR 107/TR108 in BF 469/BF470

2) R119/R120 in 47 Ohm (für/for 15 mA Querstrom/idle-current)

3)C107 in 2M2 - 4M7/63 Volt, EPCOS LL

4) C105(FB) in 100 uF/63V SIKOREL

5) C999 in 4M7/100V SIKOREL

6) a. Ruhestrom/idle current Tr109/110 auf/to o mA.
b. D101/102: 1xLED rot/red, R106 in 12K, R109 in 270 Ohm
c. Neueinstellung/new adjustment Ruhestrom/idle current

7) WIMA-MKS-bypass: C101+102:10uF, C107(D101/102):1uF,

8) WIMA-MKP-bypass: C105 (input):10uF, C105(FB):22uF,C107/999: 1uF

9) Arcotronics-MKP-bypass: C107/C999: 50uF - 200 uF/380V

C107

+

SPK1

8