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AL

ALPHA 10/10P SERVICE MANUAL

7

Q53

TRANS LF SS P SM BC859B

4A859B

Q54

TRANS LF SS P SM BC859B

4A859B

Q55

TRANS LF SS P SM BC859B

4A859B

Q56

TRANS LF SS P SM BC859B

4A859B

Q57

TRANS LF SS P SM BC859B

4A859B

Q58

TRANS LF SS P SM BC859B

4A859B

Q59

TRANS LF SS N SM BC849B

4A849B

Q60

TRANS LF SS P SM BC859B

4A859B

Q61

TRANS LF SS N SM BC849B

4A849B

Q62

TRANS LF SS N SM BC849B

4A849B

R1

RES MF FU W3 1R0 5% NFR25

1G810

R2

RES MF FU W3 1R0 5% NFR25

1G810

R3

RES MF FU W3 1R0 5% NFR25

1G810

R4

RES CF 1W 330R 5%

1E133

R5

RES CF 1W 330R 5%

1E133

R6

RES CF W2 100R 5%

1D110

R7

RES MF FU W3 470R 5% NFR25

1G147

R8

RES MF FU W3 470R 5% NFR25

1G147

R9

RES MF FU W3 220R 5% NFR25

1G122

R10

RES MF FU W3 220R 5% NFR25

1G122

R11

RES MF FU W3 1K0 5% NFR25

1G210

R12

RES MF FU W3 470R 5% NFR25

1G147

R13

RES MF FU W3 470R 5% NFR25

1G147

R14

RES MF FU W3 220R 5% NFR25

1G122

R15

RES MF FU W3 220R 5% NFR25

1G122

R16

RES MF FU W3 1K0 5% NFR25

1G210

R17

RES MF FU W3 470R 5% NFR25

1G147

R18

RES MF FU W3 470R 5% NFR25

1G147

R19

RES MF FU W3 1K0 5% NFR25

1G210

R20

RES MF FU W3 1K0 5% NFR25

1G210

R21

RES MF FU W3 1K0 5% NFR25

1G210

R22

RESISTOR SM W8 220R 1%

1A122A

R23

RESISTOR SM W8 220R 1%

1A122A

R24

RESISTOR SM W8 2K4 1%

1A224A

R25

RESISTOR SM W8 2K4 1%

1A224A

R26

RESISTOR SM W4 22K 2%

1A322

R27

RESISTOR SM W4 22K 2%

1A322

R28

RESISTOR SM W4 10K 2%

1A310

R29

RESISTOR SM W4 1K5 2%

1A215

R30

RESISTOR SM W4 120K 2%

1A412

R31

RESISTOR SM W4 120K 2%

1A412

R32

RESISTOR SM W4 100K 2%

1A410

R33

RESISTOR SM W4 12K 2%

1A312

R34

RESISTOR SM W4 11K 2%

1A311

R35P

RESISTOR SM W4 0R0 2%

1A000

R35

RESISTOR SM W4 1K0 2%

1A210

R36

RESISTOR SM W4 47K 2%

1A347

R37

RESISTOR SM W4 22K 2%

1A322

R38

RESISTOR SM W4 47K 2%

1A347

R39

RESISTOR SM W4 47K 2%

1A347

R40

RESISTOR SM W4 22K 2%

1A322

R41

RESISTOR SM W4 47K 2%

1A347

R42

RESISTOR SM W4 47K 2%

1A347

R43

RESISTOR SM W4 47K 2%

1A347

R44

RESISTOR SM W4 47K 2%

1A347

R45

RESISTOR SM W4 47K 2%

1A347

R46

RESISTOR SM W4 47K 2%

1A347

R47

RESISTOR SM W4 68K 2%

1A368

R48

RESISTOR SM W4 180R 2%

1A118

R49

RES CF W2 100R 5%

1D110

R50

RES MF FU W3 100R 5% NFR25

1G110

R51

RES MF FU W3 10R 5% NFR25

1G010

R52

RES MF FU W3 10R 5% NFR25

1G010

R53

RES CF 2W 220R 5%

1C122

R54

RES MF FU W3 100R 5% NFR25

1G110

R55

RES MF FU W3 10R 5% NFR25

1G010

R56

RES MF FU W3 10R 5% NFR25

1G010

R57

RES CF 2W 220R 5%

1C122

R58

RESISTOR SM W4 47R 2%

1A047

R59

RESISTOR SM W4 1M0 2%

1A510

R60

RESISTOR SM W4 1M0 2%

1A510

R61

RESISTOR SM W4 2M2 2%

1A522

R62

RESISTOR SM W4 1M0 2%

1A510

R63

RESISTOR SM W4 1M0 2%

1A510

R64

RESISTOR SM W4 2M2 2%

1A522

R65

RESISTOR SM W4 220R 2%

1A122

R65P

RESISTOR SM W4 0R0 2%

1A000

R66

RESISTOR SM W4 47R 2%

1A047

R67

RESISTOR SM W4 47R 2%

1A047

R68

RESISTOR SM W4 10K 2%

1A310

R69

RESISTOR SM W4 10K 2%

1A310

R70

RESISTOR SM W4 10K 2%

1A310

R71

RESISTOR SM W4 4K7 2%

1A247

R72

RESISTOR SM W4 100R 2%

1A110

R73

RESISTOR SM W4 100R 2%

1A110

R74

RESISTOR SM W4 100R 2%

1A110

Summary of Contents for Alpha 10

Page 1: ...plifier The voltage amplifier consists of another differential pair Q48 49 50 and 51 Q48 and 50 are the positive pulling side of the voltage amplifier output and Q49 and 51 pull negative via a current...

Page 2: ...or for the ve MOSFET is equal to the d c mode static reference level and at the half way point of the signal The result is a perfect square wave output from the comparator Under these conditions the v...

Page 3: ...the constant power supply from standby transformer TX2 This enables the amplifier to be switched on or off remotely from the remote bus or in the case of the integrated amplifier from an infra red rem...

Page 4: ...3V 2N622 C9 ELST 10U 50V 2N610 C10 ELST 10U 50V 2N610 C11 ELST 1U0 50V 2N510 C12 PPRO 4N7 63V 5 RA 2D247N C13 SUPPR CAP 4N7 250V 2K247 C14 PPRO 150P 5 63V RA 2D115 C15 ELST 10U 50V 2N610 C16 ELST 10U...

Page 5: ...ZENER 15V 400MW 3C11504 D3 ZENER 10V 400MW 3C11004 D4 ZENER 10V 400MW 3C11004 D5 ZENER 10V 400MW 3C11004 D6 ZENER 10V 400MW 3C11004 D7 ZENER 10V 400MW 3C11004 D8 ZENER 10V 400MW 3C11004 D9 ZENER 10V...

Page 6: ...S AUDIO DRIVER P 2SA1964 4B1964 Q7 TRANS LF SS P SM BC856B 4A856B Q8 TRANS LF SS N SM BC846B 4A846B Q9 TRANS LF SS N SM BC846B 4A846B Q10 TRANS LF SS N SM BC846B 4A846B Q11 TRANS LF SS N SM BC846B 4A8...

Page 7: ...310 R29 RESISTOR SM W4 1K5 2 1A215 R30 RESISTOR SM W4 120K 2 1A412 R31 RESISTOR SM W4 120K 2 1A412 R32 RESISTOR SM W4 100K 2 1A410 R33 RESISTOR SM W4 12K 2 1A312 R34 RESISTOR SM W4 11K 2 1A311 R35P RE...

Page 8: ...1W 5R6 5 1E856 R114 RESISTOR SM W4 47R 2 1A047 R115 RESISTOR SM W4 1K5 2 1A215 R116 RESISTOR SM W4 10K 2 1A310 R117 RESISTOR SM W4 1K5 2 1A215 R118 RESISTOR SM W4 33K 2 1A333 R119 RESISTOR SM W4 33K 2...

Page 9: ...0K 2 1A410 R198 RESISTOR SM W4 4K7 2 1A247 R199 RES MF FU W3 1R0 5 NFR25 1G810 R200 RES CF 1W 2K7 5 1E227 R201 RESISTOR SM W4 22K 2 1A322 R202 RESISTOR SM W4 100K 2 1A410 R203 RESISTOR SM W4 2K4 2 1A2...

Page 10: ...LM56CIM 5M56 Z11 IC THERMOSTAT SM LM56CIM 5M56 Z12 IC CMOS EPROM 24C02 SM 5G2402 Z13 IC COMPARITOR SM DUAL LM393A 5M393AD ALPHA 10 PREAMPLIFIER BOARD PARTS LIST Ref No Description Part No C1 ELST NON...

Page 11: ...STOR SM W4 22K 2 1A322 R56 RESISTOR SM W4 22K 2 1A322 R57 RESISTOR SM W4 22K 2 1A322 R58 RESISTOR SM W4 47R 2 1A047 R59 RESISTOR SM W4 47R 2 1A047 R60 RESISTOR SM W4 47R 2 1A047 R61 RESISTOR SM W4 47R...

Page 12: ...0R 1 1H115 R3 RES MF W4 150R 1 1H115 R4 RES MF W4 150R 1 1H115 R5 RES MF W4 150R 1 1H115 R6 RES MF W4 150R 1 1H115 R7 RES MF W4 150R 1 1H115 R8 RES MF W4 150R 1 1H115 R9 RES MF W4 4K7 1 1H247 R10 RES...

Page 13: ...2 3 4 5 6 SKT1 JST 6W HEADER ACDet SUP 15V 15V SUP 3rd Ch Power Digital Supply 1 2 3 4 5 6 7 8 SK11 WTRAP2 5X8V 15V 15V Pre Amp Audio Input Kit Masks 1 For Integrated Amp use N F inclusive 2 For Power...

Page 14: ...61 100R SM 15V R164 560R SM1 Q20 BC849B Q21 BC849B R166 2K2 SM R119 33K SM 15V R172 10R SM C69X 56P PS 3 2 1 Z3A TL072 SM R176 470K SM R177 470K SM C71 10U NP R38 47K SM C75 47N PE R59 1M0 SM C64 330P...

Page 15: ...Input ABSUP 5 6 7 Z4B TL072 SM R64 2M2 SM Bias Level detector Auto Bias Servo Voltage Servo OUTPUT2 ATE_PAD INPUT2 ATE_PAD VSERVO2 ATE_PAD ISERVO2 ATE_PAD STABLE2 ATE_PAD C5 100U EL 100V 4 5 6 SW2B 2P...

Page 16: ...X1 ThermX_RST Option PCB Display PCB 5V Rmin Remote PCB PWR Amp Control Thermal Protection Mains VI Fault detection R218P 220R SM Q58R BC859B R225R 1K0 SM REMK LL1 ATE IR RX Disable pad User IR RX Dis...

Page 17: ...R221 470R 1W CF Q61 BC849B R227 10R FU C83 100U EL R80 10K SM Q31 BC849B R83 100R SM 5V R28 10K SM R198 4K7 SM Q37 BC849B Q62 BC849B R213 47R SM R209 4K7 SM 5V Send Break R220 100K SM L3 27MH C91 680...

Page 18: ...E1_1 TAPE1_2 TAPE2_0 TAPE2_1 TAPE2_2 SOURCE_0 SOURCE_1 SOURCE_2 TAPE1_0 TAPE1_1 TAPE1_2 TAPE2_0 TAPE2_1 TAPE2_2 SOURCE_0 SOURCE_1 SOURCE_2 MCLR 1 RA0 2 RA1 3 RA2 4 RA3 5 RA4 T0CKI 6 RA5 SS 7 RE0 RD 8...

Page 19: ...erR AVR Aux2R Aux1R Tape1IR Tape2IR PlugR 3 2 1 Z12A TL072 SM 5 6 7 Z12B TL072 SM 8 4 Z12C TL072 SM 3 2 1 Z13A TL072 SM 5 6 7 Z13B TL072 SM 8 4 Z13C TL072 SM R38 100K SM R39 100K SM R40 100K SM R41 10...

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