Audio Pro B1.39 User manual

Bias adjustment B1.39

Input signal 50-60Hz.

Connect a 4Ωload to output.

Adjust output level to 3.5-4V RMS and leave the amp to warm up for about 20

minutes.

Set output level to 0 and adjust VR1 for 1.5-3mV after about 1 minute.

Note! Check that Q07A (2SC3421) has a perfect contact surface against the cooling

flange.

B1.39

PART-NUMBER

DESCRIPTION

LOCATION

ASS'Y PCB POWER AMP AND SUPPLY BOARD

ADB-BR62

DIODE BRIDGE BR62 200V 6A

D06

AIC-NJM2072D

IC SIGNAL LEVEL SENSOR SYSTEM NJM2072D

IC3

AIC-TA7317P

IC TA7317P

IC2

AIC-TL071

IC TL071

IC1

ARL-01-7001

RELAY 24V 1P1T OMIT-SS-124LM

ADD-1N4004*TAP52

DIODE RECTI 1N4004 TAPING 52MM

D03-05

ADD-1N4148*TAP52

DIODE SWITCH 1N4148 52MM

D01,02

ADZ-1N5231B

DIODE ZENER 1N5231B 0.5W 5.1V +-5%

ZD3

ADZ-1N5245B

DIODE ZENER 1N5245B 0.5W 15V +-5%

ZD1-2

ATR-BC546B

TR BC546B (&)

Q01,03,14,16

ATR-BC556B

TR BC556B

Q02,04,15

ATR-BF422

TR BF422

Q06

ATR-BF423

TR BF423

Q05

ECD-050T102M

CAP CER NP 1NF/50 +-20%

C16

ECD-050T104M

CAP CER 50V 0.1UF +-20%

C09

ECD-050T221M

CAP CER 50V 220P +-20%

C04,05,06

ECD-050T222M

CAP CER 50V 0.0022uF +-20%

C01

ECD-050T223M

CAP CER 50V 0.022UF +-20%

C08

ECD-050T470M

CAP CER 50V 47PF +-20%

C07

ECE-025T107M

CAP ELE 25V 100UF +-20%

C42,43

ECE-025T226M

CAP ELE 25V 22U +-20%

C14

ECE-025T476M

CAP ELE 25V 47U +-20%

C12,13

ECE-050T106M

CAP ELE 50V 10UF +-20%

C02,03,10,18,26,45,46

ECE-050T474M

CAP ELE 50V 0.47UF +-20%

C15

ECE-100T105M

CAP ELE 100V 1U +-20%

C25

ECM-050T104J

CAP MYLAR 50V 0.1u +-5%

C11

ECM-100T104J

CAP MYLAR 100V 0.1uF +-5%

C23,24

ERB-251Y121J

RES FR 1/4W Y 120 +-5%

R14,18

ERB-251Y150J

RES MO 1/4W Y 15 +-5%

R15

ERB-251Y221J

RES FR 1/4W Y 220 +-5%

R20

ERB-251Y2R2J

RES FR 1/4W Y 2.2 +-5%

R19,21

ERB-251Y391J

RES FR 1/4W Y 390 +-5%

R10,11

ERC-121Y102J

RES CF 1/8W Y 1K +-5%

R02

ERC-121Y103J

RES CF 1/8W Y 10K +-5%

R01,43,45

B1.39

PART-NUMBER

DESCRIPTION

LOCATION

ERC-121Y122J

RES CF 1/8W Y 1.2K +-5%

R05

ERC-121Y123J

RES CF 1/8W Y 12K +-5%

R30

ERC-121Y153J

RES CF 1/8W Y 15K +-5%

R51

ERC-121Y183J

RES CF 1/8W Y 18K +-5%

R36

ERC-121Y221J

RES CF 1/8W Y 220 +-5%

R52

ERC-121Y222J

RES CF 1/8W Y 2.2K +-5%

R03

ERC-121Y272J

RES CF 1/8W Y 2.7K +-5%

R44

ERC-121Y274J

RES CF 1/8W Y 270K +-5%

R38

ERC-121Y333J

RES CF 1/8W Y 33K +-5%

R04,08,53

ERC-121Y473J

RES CF 1/8W Y 47K +-5%

R28,29,34,37

ERC-121Y562J

RES CF 1/8W Y 5.6K +-5%

R07,09,35,40

ERC-121Y563J

RES CF 1/8W Y 56K +-5%

R31,42,49

ERC-251Y103J

RES CF 1/4W Y 10K +-5%

R06,12

ERC-251Y123J

RES CF 1/4W Y 12K +-5%

R55

ERC-251Y152J

RES CF 1/4W Y 1.5K +-5%

R27

ERC-251Y183J

RES CF 1/4W Y 18K +-5%

R48

ERC-251Y221J

RES CF 1/4W Y 220 +-5%

R13

ERC-251Y222J

RES CF 1/4W Y 2.2K +-5%

R16

ERC-251Y223J

RES CF 1/4W Y 22K +-5%

R26

ERC-251Y332J

RES CF 1/4W Y 3.3K +-5%

R50

ERC-251Y471J

RES CF 1/4W Y 470 +-5%

R17

ERC-251Y563J

RES CF 1/4W Y 56K +-5%

R39

ECE-016V108M

CAP ELE 16V 1000U +-20%

C17

ECE-080V688M

CAP ELE 80V 6800uF +-20% (30*50)

C21,22

ELC-02-7001

COIL CHK 2UH +-10% L-R2U

L01

ERB-202L152J

RES MO 2W L 1K5 +-5% P=20mm

R41

ERB-202L4R7J

RES MO 2W L 4.7 +-5% P=20mm

R32,33

ERB-202L681J

RES MO 2W L 680 +-5% P=20mm

R54

ERB-202LR22J

RES MO 2W L 0.22 +-5% P=20mm

R22-25

ERB-302L222J

RES MO 3W L 2K2 +-5% P=20mm

R46,47

ERV-F07-501B01

VR SEMI ST F 7MMD 500B

VR1

TRL-7002

THERMAL PROTECTOR 17AM024A5

TH1

ASS'Y PCB HIGH/LOW LEVEL IN/OUT

ECJ-100A107K

CAP ELND 100V/100uF +-10%

C1-2

ASS'Y PCB INPUT AND FILTER BOARD

B1.39

PART-NUMBER

DESCRIPTION

LOCATION

AIC-TL072

IC DVAL OP AMP TL072

IC101-2

ADD-1N4148*TAP52

DIODE SWITCH 1N4148 52MM

D101-6

ECD-050T470M

CAP CER 50V 47PF +-20%

C110

ECD-050T473M

CAP CER NP .047U/50 +-20%

C106-7

ECM-050T102J

CAP MYLAR 50V 1000pF +-5%

C101

ECM-050T104J

CAP MYLAR 50V 0.1u +-5%

C112-3

ECM-050T124J

CAP MYLAR 50V 0.12U +-5%

C114

ECM-050T333J

CAP MYLAR 50V 0.033U +-5%

C108-9

ECM-050T683J

CAP MYLAR 50V 0.068U +-5%

C115

ECZ-063T474J-1

CAP MTLZ 63V 0.47uF +-5% MINI

C103

ECZ-063T684J-1

CAP MTLZ 63V 0.68uF +-5% MINI

C111

ERB-501Y102J

RES MO 1/2W Y 1K +-5%

R112-3

ERC-121Y101J

RES CF 1/8W Y 100 +-5%

RA1

ERC-121Y123J

RES CF 1/8W Y 12K +-5%

R121A

ERC-121Y153J

RES CF 1/8W Y 15K +-5%

R122

ERC-121Y154J

RES CF 1/8W Y 150K +-5%

R118

ERC-121Y183J

RES CF 1/8W Y 18K +-5%

R120

ERC-121Y221J

RES CF 1/8W Y 220 +-5%

R101

ERC-121Y272J

RES CF 1/8W Y 2.7K +-5%

R121B

ERC-121Y472J

RES CF 1/8W Y 4.7K +-5%

R117

ERC-121Y473J

RES CF 1/8W Y 47K +-5%

R119

ERC-251Y153J

RES CF 1/4W Y 15K +-5%

R108-9

ERM-121Y1002F

RES MF 1/8W Y 10K +-1%

R103

ERM-121Y1802F

RES MF 1/8W Y 18K +-1%

R114,115

ERM-251Y3903F

RES MF 1/4W Y 390K +-1%

R106,107,110,111

ERB-202P220J

RES MO 2W P 22 +-5%

R105

SWL-7016

SW TOGGLE

SW1

VRR-7045

VR ROT 16MMD 20KB*2 H=15mm

VR102

VRR-7049

VR ROT 16MMD 50KA*1 +-20%

VR101

ADL-8S704

LED DC 5mmD L-59EGW

ATR-2SA1306B

TR 2SA1306B

Q09

ATR-2SA1962

TR 2SA1962

Q11,13

ATR-2SC3298B

TR 2SC3298B

Q08

ATR-2SC3421

TR 2SC3421

Q07

ATR-2SC5242

TR 2SC5242

Q10,12

B1.39

PART-NUMBER

DESCRIPTION

LOCATION

MISCELLANEOUS

ECW-250V472M

CAP Y-TYPE 4700pF/250V +-20%

FUH-1004

FUSE HOLDER FOR 5*20MM SEMKO

FUS-01-2001S

FUSE UL/CSA 5*20mm 2A/250V SB

JK3-L01-709

JACK RCA L 1P GOLD PLATED

JK7-7012

JACK BINDING POST CL-B261

M04-P631

BINDING POST PLUG BLACK (A414B-3)

M04-P632

BINDING POST PLUG RED (A414R-3)

M11-P652

KNOB A KGA003-01

WPC-7019

POWER CORD H05VV-F 1.8M

XFM-3009

XFORMER AUDIO I/P EI-86 115/230V KGA008-

WAS-7369

WIRE ASS'Y 1P RCA PLUG*2(GOLD) 6M BAK

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