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Authorized Technical Service Only


CAUTION /
These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.


Attention mark indicating critical components for safety. Replacement must be made with identical parts of special part number.

EXPLANATION OF SURFACE PARTS
Front Glass (172-0120-03) Heat Sink (240-0072-00)

Decoration Screw /4pcs. (630-0306-04) Washer /4pcs. (637-9050-04)

Handle B (132-0105-03) Spacer (250-1154-14) Push-button for METER (388-0502-04) Meter Switch Assembly Ass'y (716-0642-00)

Push-button for POWER (388-5061-13) Power Push Switch (354-1023-00)

Handle A (132-0114-00)

Heat Sink (240-0072-00)

Top Plate (150-0075-02)

Meter (178-2039-00) Front Panel Assembly Ass'y (130-0167-01)

Handle B (132-0105-03) Spacer (250-1154-14)

Handle A (132-0114-00) Foot (238-0023-00) Bottom Plate (155-0081-02)

Sub Panel (134-0135-03)

mark parts not supplied



7

6

Meter/ (178-2039-00)

1

3

3

5
1.

8

4

2
1pce. 1pce. 2pcs. 1pce. 1pce. 1pce. 1pce. 1pce. 1pce. 1pce. 5-1. Retainer=283-1019-14 5-2. Coil Spring=285-1030-04 5-3. E-ring=647-1054-00 E- 6. Front Glass=172-0120-03 7. Decoration Screw=630-0306-04 7-1 Washer=637-9050-04 7-2 Nut=633-2032-02 8. Panel Name Plate=180-1097-03 1pce. 1pce. 1pce. 1pce. 4pcs. 4pcs. 1pce. 1pce.

Front Panel Assembly Ass'y (130-0167-01)

Front Panel=131-0167-01 2. Sub-panel=134-0135-03 3. Handle A=132-0114-00 4. Push-button=388-5061-13 /POWER 4-1. Push-button Frame=113-0122-04 4-2. Coil Spring=285-1022-04 4-3. Washer=637-0041-02 4-4. E-ring=647-1055-00 E- 5. Push-button=388-0502-04 /METER

SP Terminal(Black) () (313-1011-32) Rear Panel (135-0156-02) Pin Jack/ (302-0112-00) Pin Jack Cover (254-2015-04) XLR (Cannon) Jack Receptacle (302-8006-00) Connector Cover/Female (254-2012-00)

SP Terminal(Red) () (313-1012-32)

Foot / (238-0020-22) Binding Serew /4×14 (611-0414-02) 6pcs. XLR (Cannon) Plug Receptacle (301-8005-00) Connector Cover/Female (254-2011-00)
AC Inlet/AC (301-3304-00) Power Supply Cord J type:680-1404-00 U type:680-2402-00 E type:680-3402-00

Knob/ (384-2001-04) Circut Breakr/ J,U type (311-0204-00)20A E type (311-0104-00)10A

Foot/ (238-0023-00) Binding Serew /4×14 (611-0414-02)

mark parts not supplied

Output Assembly Ass'y (716-0637-00)

Heat Sink (240-0072-00) Power Amp Assembly Ass'y(L) (717-0073-00)

Heat Sink (240-0072-00) Power Transformer (510-2053-00) Name Plate (180-3054-04) Power Amp Assembly Ass'y(R) (717-0074-00)
Meter Lamp Assembly Ass'y (723-0080-00)

Electrolytic Capacitor C002,003:40,000F/125V (CE331WG2B403HAAQ)

Protection Assembly Ass'y (720-0064-00)

Lamp Assembly Ass'y (723-0079-00)

Input Assembly Ass'y (716-0638-00)

Circut Breakr/ 20A/J,U type(311-0204-00) 10A/E type(311-0104-00)

Inrush Protector Assembly Ass'y D,Utype(716-0640-00) E,type (716-0641-00)

Diode /D001 (S25VB60) Relay/RELAY001 (362-2106-00) Diode /D002 (S25VB60)

Handle B/ (132-0105-03) Spacer/ (250-1154-14)

Power Push Switch (354-1023-00) Attention mark indicating critical components for safety. Replacement must be made with identical parts of special part number.




Lamp Assembly Ass'y (723-0079-00)

Meter Lamp Assembly Ass'y (723-0080-00) Meter Switch Assembly Ass'y (716-0642-00)

Power Meter (178-2039-00)

Foot (238-0023-00) Binding Serew/ /4×14 (611-0414-02)

Power Push Switch (354-1023-00) Rink (251-9021-04)

Panel Name Plate (180-1097-03)

Indicator (173-9069-04)

Hexa Bolt (631-0011-10) 4pcs. Acrylic (172-0121-04)

Push Button for METER (388-0502-04)

Push Button for POWER (388-5061-13) Attention mark indicating critical components for safety. Replacement must be made with identical parts of special part number.




MISCELLANEOUS(
NO Description() PC Board for Output Assembly Input Assembly Meter Switch Assembly Inrush Proterction Ass'y Power Amp Assembly(L) Power Amp Assembly(R) Protection Assembly PL16 PL13 RELAY14 Pilot Lamp Output Relay Circut Breakr T20A T10A Parts No.(No.) Remarks() 115-1427-00 115-1428-00 115-1432-00 115-1430-00 115-1424-00 115-1425-10 115-1426-00 176-4501-00 176-7501-00 362-2230-00 Lamp Ass'y Meter Lamp Ass'y Output Ass'y Top Plate / Star-hole Bolt Bottom Plate / Binding Neil Screw Foot for Binding Foot for Binding 631-0048-00 M5×15 7pcs. NO. Description( ) Parts No.( No.) Remarks( ) 613-0412-01 4×12mm 6pcs. Screws for Front Panel / Flat Head /

Handle / Hexa Hole bolt/ 631-0011-10 Power Amp Assembly Ass'y Hexa Hole bolt/ 631-0011-10 Handle / Hexa hole Bolt/ 631-0023-00

M5×12

4pcs.

M5×12mm

12pcs.

M4×4

16pcs.

F1

311-0204-00 311-0104-00 CE331WG2B403AAQ

for 100-120V for 220-240V 40,000uF/80V

C005,6

Electrolytic Capacitor Metalized Capacitor Polypropylen Capacitor Diode Top Carton Box Inner Sub- Carton Bottom Carton Box Top Pad / Top Pad / Center Pad / Bottom Pad / Bottom Pad / Joint / Cover Accessories Case Wrapping Sheet/ Bag for AC Cord Poly Bag Cord Band

631-0054-00

3×10mm

13pcs.

C001 C006 C004,5 D001,2 Packing Material

CF99MF2E473M 0.047uF/250V CFS922N2E104KMMV 0.1uF/250V CF99MF2E103KAPH 0.01uF/250V

Bottom side / Screw/ 611-0414-02 Rear side/ Screw/ 611-0414-02

4×14mm 4×14mm

4pcs. 6pcs.

S25VB60 Power Transformer/ Binding Screw/ 600-0614-02 Spring Washer/ 638-0061-02 Front Glass / Decoration Bolt / Nylon Washer / Nut / Front() Rear () Front() Rear () 6pcs. Power Supply Cord (J type) (U type) (E type) Pin Jack Cover / Connector Cover for female () AC for AC Cord 680-1404-00 680-2402-00 680-3402-00 254-2015-04 254-2011-00 254-2012-00 2-conductor 2-conductor 3-conductor 2pcs. 1pce. 1pce.
Accessories Owner's Manual

4×14mm

800-0239-04 801-0248-04 801-0249-04

4pcs. 4pcs.

630-0306-04 637-9050-04 633-2032-02 820-2210-00 820-0210-00 821-0011-00 821-0010-00 827-1059-00 English Japanese English Japanese E type

4pcs. 4pcs. 4pcs.

803-0319-10 803-0320-00 803-0323-00 803-0321-10 813-0322-10 249-0012-00 810-4867-04



( ) Caution Notes EC

801-0247-10

810-4545-04 810-2030-04 812-2435-04 280-0003-10







Output Assembly (716-0637-00)
R3 L1
R1

R2 K7 RELAY1 RELAY3 RELAY2 C2 C1 RELAY4
Connector Purg Tarminal Relay Choke Coil K7 K5,6 RELAY1,2,3,4 L1,2 308-0408-00 314-0523-04 362-2230-00 506-0007-00 Diode Polypropylen Capacitor Oxide Metal Film Resistor Carbon Film Resistor D1 C1,2 1SR139-400 CQ922N2D473KAPHF 0.047uF/200V

R1 R2,3 R4

RS143FA100JS-P RS143FA200JS-P RD142EA203JF

10 2W 20 3W 20k 1/4W

Input Assembly (716-0638-00)
RELAY1 RELAY3 RELAY2

S1 K1

S2

K2
Connector Plug Rotary Switch Relay K1 K2 K3 S1,2 RELAY1,2,3 308-0616-00 308-0206-00 308-0526-00 336-2005-00 362-1202-00

K3
Polyester Capacitor Diode Carbon Film Resistor C1,2,3 D1,2,3 R1,2,3 R48 CQ922M1H103J-B MA165 RD142HA101JFS RD142CA274J 100 1/6W 270k 1/6W 0.01uF/50V

Lamp Assembly (723-0079-00)
PL5 K1 PL6 PL4 PL2 PL3 PL1
PC Board PC Pilot Lamp Connector Plug PL1,2,3,4,5,6 K1 115-1433-00 176-4501-10 308-0213-00

Meter Lamp Assembly (723-0080-00)
PL1 K1 K2 PL2 PL3
PC Board PC Pilot Lamp Connector Plug 115-1434-00 PL1,2,3 K1 K2 176-7501-00 308-0413-00 308-0209-00







Balance IO Assembly (716-0639-00)
JK2 JK1

XLR Audio Jach XLR Audio Plug Connector Plug

JK1 JK2 K1

302-8006-00 301-8005-00 308-0419-00

K1

ln-rush Protector Assembly (716-0640-00) for D/U Model <716-0641-00 for Etype Model>

J1 J3
Metal Plate Resistor R1,2,3,4 R5,6 RW994AJ3R3J-S RF993HG2R2J 3.3/5W 2.2/5W

R5 R6

J2 R1 R3

Fuse Resistor

Jumper Setting/
R2 R4

VOLTAGE Ass'y NO J1 J2 J3 100-120V 716-0640-00 230V 716-0641-00

Meter Switch Assembly (716-0642-00)

K1

Connector Plug Push Switch

K1 S1

308-0206-00 354-1219-00

S1







Power Amp Assembly(L) (717-0073-00)

Q33 Q31 Q29 R38 VR1 R40

TP1 Q27 Q25

Q4 Q9 Q23 Q21 Q19 Q17 Q15 Q13 Q11 R22 R36 R34 R32 R30 R28 R26 R24

R42 K3 K1 C2 Q7 TH1 C1

Q35 Q6
Connector JackAssembly Ass'y (309-2640-14)

Q5 Q34

R41 R39 R37 R35 R33 R29 R27 R25 R23 R21 K2 R31 Q12 Q32 Q30 Q28 Q26 Q24 Q10 Q22 Q20 Q18 Q16 Q14 Q8 Q3

Connector Plug Potentiometer Thermal Smitch Diode Zener Diode

K1 K2 K3 TP1 (Test Point) VR1 TH1 D1 D2,3,6,7,913 D4,5 D8 Q1 Q2 Q3,34 Q4,35 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12,14,16,18,20,22 24,26,28,30,32 Q13,15,17,19,21,23 25,27,29,31,33

308-0308-00 308-1023-00 308-0408-00 308-0221-00 583-0226-00 369-0029-00 LN1VB60 1SR139-400 HZ4ALL HZ6C2L 2SC3478A-K 2SA1376A-K 2SC3902-S/T 2SA1507-S/T 2SC4690-O/R 2SA1805-O/R 2SC4685 2SC4793 2SA1837 2SC5358-O 2SA1986-O 2SC5358-O/R 2SA1986-O/R

Electrolytic Capacitor Ceramic Capactior Polyester Film Capacitor Polypropylene Capacitor

C1,2 C58,11 14 C9,10,15,16 C21,22 C17,18 C2629 C32,33 C19,20 C23,24 C30,31

CE692WG2B102BAQ CE04W2A221LXV CE04W2A471VR CE04W2D220PB CC92CH2H151J CC92CH2H101J CC92CH2H470J CF922MF2E104KD-A CF922MF2E473KD-A CQ922N2A103JAPSF

1000uF/120V 220uF /100V 470uF /100V 22uF / 200V 151pF /500V 100pF /500V 47pF / 500V 0.1uF / 250V 0.047uF/250V 0.01uF /100V

Carbon Film Resistor

Tarnsistor

R3,4 R11 R12 R13,1518 R43,44,54,55 R52,53 R1,2,48,49 R7 R8,9,10 R14 R19 R20 R47 R50,51 R5,6,2142

RD142HA333JFS RD142HA183JFS RD142EA102JF RD142EA101JF RD142EA331JF RD142EA131JF RF142EAR10J

33k 18k 1k 100 330 130 1

1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/2W

Fuse Resistor Metal Film Capacitor Oxide Metal Film Resistor Metal Plate Resistor

RN142HK2871FF 2.87k1/4W RN142HK3012FF 30.1k1/4W RN143AA2R2JS-P 2.2 1/4W RS143DA680JS-P RS143DA120JS-P RS143FA200JS-P RS143DA330JS-P RW993DJR47K-H 68 12 20 33 2W 1W 3W 2W

0.47 2W







Power Amp Assembly(R) (717-0074-00)
Q38 R70 Q36 R68 Q34 Q32 TP1 Q30 Q4 Q16 R62 Q9 Q28 R60 Q26 R58 Q24 R56 Q22 R54 Q20 R52 Q18 R50
Connector JackAssembly Ass'y (309-2641-14)

R66

R64

K4 C14 Q39 C13 TS1 IC1 K3 R69

K1

R67 Q37 Q35 VR1
Connector Plug K1 K2 K3 K4 TP1 VR1 IC1 D1,2 D3,4 D5,6 D13,17 D14 D9,10 D15,16 D18 D19,20

R65 Q33 Q31

R63 Q29

R61 Q13

R59 R57 Q27 Q25

R55

R53 Q21

R51 Q19

R49 Q17

Q15

Q23

TP1
308-0416-00 308-1023-00 308-0408-00 308-0321-00 308-0221-00 583-0226-00 NJM4580D-D HZ153L HZ6A1L 1Z15A HZ6C2L HZ2ALL 1SS83 MA167 LN1VB60 MA165 2SA1376A-K 2SC3478A-K 2SA1145-Y 2SC2705-Y 2SA1408-E/F 2SC3790-E/F 2SC4793 2SA1837 2SC5358-O 2SA1986-O 2SC5358-O/R 2SA1986-O/R 2SC4685 2SC2547-D/E 2SA1085-D/E 2SK330-Y 369-0029-00 CE04W1H100CA CE04W2D101PB CE04W1H100VP CE04W1H010CA CE692WG2B102BAQ CE04W2D220PB CE04W2A221LXV 10uF / 50V 100uF /250V 10uF / 50V 1uF /50V 1000uF/125V 2uF /200V 220uF /100V

Q34
C1,2 Polyester Capacitor C9 C19,20 C31,40 C41,42 Polypropylen Capacitor Ceramic Caacitor C23,24 CF922MF2E152KD-A CF922MF2E223KD-A CF922MF2E104KD-A CF922MF2E473KD-A CF922MF1H104KD-A CQ922N2A472JAPHF 1,500pF/250V 0.022uF/250V 0.1uF / 250V 0.047uF/250V 0.1uF / 50V 4,700pF/100V

Potentiometer IC Zener Diode

C15,16 C25,26,29,30

CC92CH2H151J CC92CH2H101J

151pF/500V 100pF/500V 30k 560 75k 24k 1.1k 22 75k 1k 100 220k 680 330 100 4.7k 7.5k 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W

Diode

Cabon Film Resistor

Tarnsistor

Q1,4,43,46,47,50 Q2,3,44,45,48,49 Q5,7,41 Q6,8,42 Q9 Q10,40 Q13 Q14 Q15 Q16 Q17,19,21,23,25,27, 29,31,33,35,37 Q18,20,22,24,26,28, 30,32,34,36,38 Q39 Q51 Q52 Q53,54 TS1 C3,4 C5,6,3237 C7,8 C10 C13,14 C21,22 C27,28

R1,2 R3,4 R5,6 R7,8,7982 R9,10 R13,14,9598 R18,20 R21,22,33 R25,26,3436,43,44 R29 R30 R71,72 R77,78,84,85 R86,87 R89,90,91,92,93,94 R11,12 R15 R16 R17 R19 R23,88 R24,83 R41 R27,28 R111,112

RD142EA303JF RD142EA561JF RD142EA753JFS RD142EA243JFS RD142EA112JF RD142EA220JFS RD142EA753JF RD142EA102JF RD142EA101JF RD142EA224JF RD142EA681JF RD142EA331JF RD142EA101JFS RD142EA4R7JFS RD142EA752JFS RN142KE1211F RN142HK86R6FF RN142HK7680FF RN142HK1000FF RN142HK6980FF RN142HK7681FF RN142HK7871FF RN143AA2R2JS-P RS142HBR680J RF142EAR10J RS143DA120JS-P RS143DA680JS-P RS143FA200JS-P RS143FA332JS-P RW993DJR47K-H

Matal Film Resisytor

1.2k 1/4W 86.6 1/4W 768 1/4W 100k 1/4W 698 1/4W 7.68k1/4W 7.87k1/4W 2.2 1/4W 68 10 1/2W 1/4W 2W 2W 3W 3W

Fuse Resistor

FET Thermal Smitch Electrolytic Capacitor

Oxide Metal Film R42 Resistor R47 R48 R73,74,99,100 Metal Plate Resistor R4970

12 68 20 3.3k

0.47 5W







Protection Assembly (720-0064-00)

VR2 VR1

IC6

IC4

IC7

RELAY1 RELAY2

K5 K6 K4 K2 K3

IC5 Q1

IC8 IC3 IC1 IC2

K1

Connector Plug

K1 K2 K3 K4 K5,6 RELAY1,2 VR1 VR2 D1 D2 6,8,9,11 D7 D10 IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 Q1 X1 C1,2,3 C5,6,9,19 C10,11,12 C16 C18,21 C22 C24

308-0321-00 308-0207-00 308-0910-00 308-0610-00 308-0408-00 362-2232-00

Polyester Film Capacitor Ceramic Capacitor PPS Capacitor PPS

C14,15 C20 C4,7,8,23,25,26 C13 C17 R1,2 R3,4,28,34 R7,9 R8,12 R11 R13 R14 R15 R16,25 R17 R18 R19,27 R20 R21 R22 R23 R24 R26,30 R29,32,33 R31 R35,36 R37,38 R39,42 R40,41

CF922N1H334J CF922N1H104J CK92Y5V1H104Z CC92CH1H100F

0.33uF/50V 0.1uF /50V 0.1uF/50V 10pF /50V

Relay Potentiometer Diode Zener Diode

CQ922M1H681JAHS 680pF/50V RF142EAR10J RD142EA472J RD142HA102JFS RD142EA682J RD142EA100J RD142EA123J RD142EA823J RD142EA822J RD142EA223J RD142EA332J RD142EA105J RD142EA102J RD142EA471J RD142EA114J RD142EA623J RD142EA622J RD142HA222JFS RD142EA104J RD142EA103J RD142HA473JFS RD142EA154J RD142EA513J RD142EA152J RD142EA475J RN143FA6R8JS-P RS143FA200JS-P 10 1/4W

583-0156-00 583-0536-00 S1VB60 MA165 1SR139-400 HZ6A1L NJM78L12A NJM79M12FA NJM78L05A TC74VHC4040F UPC1237HA TA7318P-2 TC74VHC132F UPC4570C 2SA1507-S/T RN1202 CE04W1V102VR CE04W1E220VR CE04W1V4R7VR CE04W1E221VR CE04W1E100VR CE04W1H010VR CE04W0J221VR 1000uF/35V 22uF/25V 4.7uF/35V 220uF/25V 10uF/25V 1uF/50V 220uF/6.3V

Fuse Resistor

ICs

Carbon Resistor

Tarnsistors Digital Tarnsistor

4.7k1/4W 1k 1/4W 6.8k1/4W 10 1/4W 12k 1/4W 83k 1/4W 8.2k1/4W 22k 1/4W 3.3k1/4W 1M 1/4W 1k 1/4W 470 1/4W 110k1/4W 62k 1/4W 62k 1/4W 22k 1/4W 100k1/4W 10k 1/4W 47k 1/4W 150k1/4W 51k 1/4W 1.5k1/4W 4.5M1/4W 6.8 20 3W 3W

Electrolytic Capcitor

Metal Film Resistor R5 Oxide Metal Film R6 Resistor



Notes

1. Internal input resistance of volt-ohm meter should be higher than 10k-ohms. 10k 2. Adjustments should be made in case of the PC Board or Transistors being changed. PC 3. After feeding 1 10 watts output for about 15 minutes, check bias adjustment again. 110

STEP

ADJUST ITEM

PROCEDURE
TEST EQ'PT CONNECTING POINT

ADJUST

REMARKS

1

Bias Current of L ch. Power Amp L ch.

V.O. Meter set range to less than DC 0.3V DC0.3V

Power Amp Ass'y Ass'y (717-0073/74-00) Test Point pin

VR1 for L ch. VR1 for R ch.

Adjust for 10mV reading of V.O. meter 10mV

2

Bias Current of R ch. Power Amp R ch.

1

Peak-0dB Calibration
0dB VTVM Input : 1kHz Sine Wave : 1kHz Load :None Speaker Terminal

VR2

30dB Calibration 2
30dB

VR1

Adjust input signal so that VTVM reads 44.72V.Then adjust VR2 so Meter read 0dB. VTVM 44.72V 0 dB VR,2 Adjust input signal so that VTVM reads -30dB, and set VR3 and VR4 to meter indication -30dB. VTVM "-30dB" -30dB VR1

Test Point

Test Point / TP1

Meter Calibration /

30dB

0dB







The unit can be used with differnt voltage of 100V,120V,230V. (Use the Japanese domestic model at 100V only, and never change the voltage in Japan.) Refer the photo and illustration for the wiring on the junction terminal as shown below, and have to select the correct fuse/braker and power supply cord.

When doing this work, all these pages are checked.

100V120V230V 100V /
BOTTOM VIEW () J3 230,240V J1 100,120V Ass'y (716-0640-00/0641-00) Ass'y J2 100,120V In-rush Protector Assembly / Voltage Assembly for 100,120V 716-0640-00 for 230/240V 716-0641-00 Ass'y Jumper Jumper/(J1,J2) Jumper/(J3)

Photo is shown Japanese model wiring.

! Attention mark indicating critical components for safety. Replacement must be made with identical parts of specified part number.

Circut breakr/ for 100/120V(311-0204-00) for 220/240V(311-0104-00)

Inlash protect Ass'y 716-0640 at 100V,120V K1 716-0641 at 230V,240V K2

5 4 3 2 3 1 3

Exchange the wiring of a voltage selector, and circuit braker, and In-rush Ass'y(716-0640/0641-00), or a jumper setting in Ass'y are carried out.
20A at 100V,120V 10A at 230V,240V ! AC 100/120V 230V ! 50/60Hz N (W) F1 2 ! S001 1

!

2 RELAY001 4 BLU 1 BLK 3

! 5 4 C001 3 473 /2E 2 D001 1

117V ORG 100V RED 0V GRY

RED BLK ORG YEL BLK BRN GRN GRY BLU

AC 72V 0V AC 72V AC 78V 0V AC 78V AC 21V 0V AC 21V

! S25VB60 !

117V YEL 100V BRN 0V WHT ! 510-2053

Voltage Selector

!

R003 100 3D 100V 120V 220V 230/240V

Attention mark indicating critical components for safety. Replacement must be made with identical parts of special part number.


VOLTAGE SELECTOR VOLTAGE SELECTION TABLE 1 2(AC ) 3 4(AC ) WHT.GRY YEL BRN.RED WHT.GRY BRN YEL.ORG BRN WHT YEL.GRY RED WHT YEL.GRY ORG BRN

1 100V (D) 120V (U,T) 220V (E) BRN 230/240V(E) BRN

2 WHT-GRY WHT-GRY WHT WHT

3 YEL BRN YEL.GRY YEL.GRY

4 BRN-RED YEL-ORG RED ORG

5 ORG RED ORG RED

Circut Breakr/

311-0204-00 311-0204-00 311-0104-00 311-0104-00

T20A T20A T10A T10A

AC250V AC250V AC250V AC250V

680-1404-00 680-2402-00 680-3402-00 680-3402-00

Jumper Wire/ J2 and J3:shorted J1 :open J3 :shorted J1 and J2:open







Sticker /3pcs. (180-9117-24)

Top Carton Box (800-0239-04)

Joint /6pcs. (249-0012-00) Wrapping Sheet (810-4545-04)

Top PadCase (801-0248-00)

Accessories Case (801-0247-10) Top Pad (R) (803-0320-00)
Poly Bag for AC cord

/ (810-2030-04)

Top Pad (F) (803-0319-10)

Center Pad (803-0323-00)

Poly Bag for Owner's Manual / (812-2435-04)

Cover (810-4867-04)

Bottom Pad (R) (803-0322-10) Bottom Pad (F) (803-0321-10)

Accessories/ Manual Caution Notes () Power Supply Cord

Bottom Carton Box (801-0249-00)







M - 8 0 0 0 M A S T E R C I R C U I T D I A G R A M
20mV TP1
+ -

JK1

1A

1G

UNBALANCED INPUT 10 +DC H 9 +GATE 8 -GATE 7 -DC H 6 +DC 5 -DC 4 +BASE 3 -BASE 2 +OUT 1 -OUT BLK YEL BRN 2 1 GND2 GRY W6 W1 GND1 BLK W5 OUT GRN W2 +97.2V RED W3 -97.2V VIO

20k-OHM 1.78V

Input Ass'y 716-0638 K1
K3 4A 5A 3A UNB/BAL 2A UNB 4A 5A S1A 1A BAL 1 GND 2 BAL3 BAL+ 4 GND 5 GND 3 0V 2 AC 21V from P.T. 1 AC 21V !

K2

JK2

1A

1G

K1 K3
Power Amp (L) Ass'y 717-0073

2

JK2

4 3 2 1

UNBAL GND GND BALBAL+ GND 1 2 THERMAL SENSER 3 T.P.+ 4 T.P.!

1 2 3 4 5 6

3 3A PHASE 2A NON-INV S2A + 1A K2 INV 2 -12V 1 DGND

K1

Output Ass'y 716-0637

K7 20mV TP1

1 1G

BALANCED INPUT

2

(1)GND (2)-INPUT (3)+INPUT 40k-OHM 1.78V

JK1

3

K3
2 1

K1
GRN

K6
L SIG + SPEAKER

1 1G

Balance IO Ass'y 716-0639 K1
10 +DC H 9 +GATE 8 -GATE 7 -DC H 6 5 +DC -DC 4 3 +OUT 2 -OUT +BASE 1 -BASE 1 GND 2 BAL3 BAL+ 4 GND !

1 2 THERMAL SENSER 3 T.P.+ Power Amp (R) Ass'y 4 T.P.717-0074 !

K2
YEL

R SIG

NFB GND2 GND1 OUT +97.2V -97.2V

YEL GRY BLK YEL RED VIO

W4 W6 W1 W5 W2 W3

K3
BLK

GND

-

K5
GND

K4
YEL GRY GRY

SIG (FEEDBACK)

K2

! Attention mark indicating critical components for safety. RED BLK VIO

103 /2D R001 563 2H

C004

RED BLK VIO

!

2

3

2 1

-14R002 563 2H

Replacement must be made with identical parts of specified part number.

+96.5V

Inlash protect Ass'y

C002 S25VB60 403 D002 /2B

PL1 METER LAMP + METER UNIT ACC LAMP METER SW GND

PL2

PL3

716-0640 at 100V,120V

716-0641 at 230V,240V

C005 103 /2D -96.5V

C003 403 /2B

4 3 METER LAMP 2 METER+ 1 METER-

2 1

K2 K1 K3 Protection Ass'y 720-0064
Meter Lamp Ass'y 723-0080

K1

K2

9 8 7 6 5 4 3 2 1

C006 104 /2E

RELAY001

4 BLU

1 BLK

20A at 100V,120V 10A at 230V,240V Meter switch Ass'y

GND SIG OUTPUT RELAY + -12V GND

6 5 4 3 2 1

METER+

METER-

K4 K2
PL1 PL3 PL5

!

2

!

!

1

5

117V ORG 100V RED

RED

AC 72V

AC 100/120V 230V !

F1

S001

4

0V GRY

BLK

0V

716-0642

1 GND 2 -24V THERMAL SENSER

K6
1 2 3 T.P.+ 4 T.P.PL2 PL4 PL6

!

50/60Hz N (W)

S25VB60

C001 3 473 /2E 2

117V YEL 100V BRN

!

D001

1

K1

0V WHT

ORG YEL BLK BRN GRN GRY BLU

AC 72V AC 78V 0V AC 78V AC 21V 0V AC 21V

BLU GRN GRY

!

510-2053

K1

3 AC 21V 2 1 AC 21V 0V

from P.T.

K5
THERMAL SENSER

2 1 1 2 3 T.P.+ 4 T.P.-

K1
Lamp Ass'y 723-0079

! 5 ORG RED ORG RED

R003

VOLTAGE SELECTOR VOLTAGE SELECTION TABLE

100 3D

100V 120V 220V 230/240V

1 BRN BRN

2(AC ) 3 4(AC ) WHT.GRY YEL BRN.RED BRN YEL.ORG WHT.GRY WHT YEL.GRY RED WHT YEL.GRY ORG

44.72V / 8 OHM 250W 44.72V / 4 OHM 500W 44.72V / 2 OHM 1kW
1 + 2 RELAY 3 SIG 4 GND

O U T P U T A S S 'Y ( 7 1 6 - 0 6 3 7 - 0 0 )
R1 101 2H UNBAL 5 4 3 2 1 6 7 8 9 10 R4 274 5 4 3 2 1 D2 R2 MA165 101 2H R3 6 7 8 9 10 5 4 3 2 1 101 2H R5 274 + GND DGND C3 103 R7 274 R8 274 R6 274 6 7 8 9 10 D3 MA165 RELAY2 2 1 BAL PHASE 362-1202-00 RELAY3

I N P U T A S S 'Y ( 7 1 6 - 0 6 3 8 - 0 0 )
K3
GND GND BAL+ BALGND

362-2230-00 RELAY1 -12V DGND 308-0206-00

5 4 3 2 1 308-0526-00

2

3 362-1202-00 RELAY1 D1 MA165 362-1202-00 3A

308-0408-00

5

K2 308-0616-00 K1

K7

4

1

6

MUTE+ from PROTECTION ASS'Y MUTESIG GND

1 2 3 4

362-2230-00 RELAY2

R1 100 3F

UNBAL GND GND BALBAL+ GND

1 2 3 4 5 6

L SIG C1 314-0523-04 R4 203 2H C2

K1

2

3

L1

K6

5 473 2D 473 2D

506-0007-00

from POWER AMP ASS'Y SPEAKER
2A R2 200 3F * R3 200 3F

R SIG

K2

4

1

6

2A

GND 314-0523-04 1A S1A

K3
4A 5A

D1

GND

K5

1

6

K4
UNBAL

1SR139-400

S2A 1A

3A 4A 5A 1B C3 NON-INV 2B INV 103 S2B 3B 4B

SIG (FEEDBACK) 1B 2B BAL

5 C1 103 S1B 5B -12V

4

*not mounted as standard./

2

3

3B 4B

C2 103

1

6

362-2230-00

UNB/BAL

PHASE

4

5

I N - R U S H P R O T E C T O R A S S 'Y
7 1 6 - 0 6 4 0 - 0 0 7 1 6 - 0 6 4 1 - 0 0 f o r D / U S A M o d el f o r E u r o p e a n M o d el

2

JK2 301-8005-00 3

!

R4 3R3 4A J1

R2 ! 3R3 4A R5 ! 2R2 3H ! R1 3R3 4A J3 !

1 1G

K1
GND BAL+ BALGND

302-8006-00

K1

2

4 3 2 1 3 C1 102 C2 102 * 308-0419-00

JK1

Note;Above circuit shows 716-0640 716-0640

1 1G

*

Ass'y No. 716-0640 716-0641

Voltage 100V,120V 230V

*not mounted as standard./

CAUTION ! Attention mark indicating critical components for safety. Replacement must be made with identical parts of specified part number.

J2

-15-

3

2

RELAY4 362-2230-00

B A L A N C E I O A S S 'Y ( 7 1 6 - 0 6 3 9 - 0 0 )
! R3 3R3 4A R6 2R2 3H

K2

Jumper J1,2 J3

5B

RELAY3

P O W E R A M P A S S ' Y ( 7 1 7 - 0 0 7 3 - 0 0 - L )
+DC H +GATE -GATE -DC H + +BASE -BASE +OUT -OUT

TP1 10mV
+ +10mV> R48 R10 C21 220 /2D Q12 Q14 Q16 Q18 Q20 Q22 Q24 Q26 Q28 Q30 Q32 <-10mV

+105V > 10 9 8 7 6 5 4 3 2 1 D10 104 /2E

D2 +0.55V < R50 < Q10 +2.1V C5 Q8 R17 101 103/2A C30 R52 Q34 R13 101 131 R53 R14 2 D13 VR1 Q9 < Q11 101 2R2 3A R18 C31 103/2A R22 R47K 3D R24 R47K 3D R26 R47K 3D R28 R47K 3D R30 R47K 3D R32 R47K 3D R55 331 Q35 131 R21 R47K 3D R23 R47K 3D R25 R47K 3D R27 R47K 3D R29 R47K 3D R31 R47K 3D R33 R47K 3D R54 331 D12 C7 C9 C11 C13 C15 < C26 101 /2H R15 101 +75V C17 151/2H 101/2H C28

C19

+102V

R5

<

!

Q5

R47K 3D

330 3D

K1 308-0308-00

C1

! 0V < R19 R20 680 120 3D 3D

Q1

470 /2H

R9 3012 2H

1 2 3 221 /2A R35 R47K 3D 221 /2A 471 /2A 221 /2A 221 /2A 471 /2A R12 102 Q7

R2 R10

D1

R3 333

R1 R10

*

C3

Q3

D6

D4

R43 331

102 /2C

101 /2D

C32

2 1

K2 308-1023-00

R37 R47K 3D

R39 R47K 3D

R41 R47K 3D

309-2640-04

D8

R7 2871 2H

R11 183 C6 C8 C10 C12 C14 C16

W6 W1 W5 W2 W3 R34 R47K 3D R36 R47K 3D R38 R47K 3D R40 R47K 3D R42 R47K 3D R44 331 C24

GRY BLK GRN RED VIO

GND2 GND1 OUT +97.2V -97.2V

K3 308-0408-00

TH1

C2

* 221 /2A -2.1V R51 < < -75V D11 R49 R10 C18 151 /2H -0.55V C20 104 /2E Q13 Q15 Q17 Q19 Q21 221 /2A 471 /2A 221 /2A 221 /2A 471 /2A

C4

Q2

R8 3012 2H

R10 3012 2H

R47 C22 220 /2D * C25 010 /1H C23 Q23 Q25 Q27 Q29 Q31 Q33

R4 333

D7

-102V

Q6

R6

<

R16 101 101 /2H C27 101 /2H C29

2 1

-16Q11 Q12,14,16,18,20,22 24,26,28,30,32 2SC5358-O/R 1SR139-400 HZ4ALL HZ6C2L Q13,15,17,19,21,23 25,27,29,31,33 2SA1986-O/R D8 D4,5 D2,3,6,7,9,10 11,12,13 2SA1986-O D1 LN1VB60

D3

SEMICONDUCTORS
*not mounted as standard./
CAUTION ! Attention mark indicating critical components for safety. Replacement must be made with identical parts of specified part number.

Q1

2SC3478A-K

Q6

2SA1805-R/O

Q2

2SA1376A-K

Q7

2SC4685

Q3,34

2SC3902-S/T

Q8

2SC4793

Q4,35

2SA1507-S/T

Q9

2SA1837

Q5

2SC4690-R/O

Q10

2SC5358-O

M E T E R S W I T C H A S S ' Y
L A M P A S S ' Y ( 7 2 3 - 0 0 7 9 - 0 0 )

( 7 1 6 - 0 6 4 2 - 0 0 )

M E T E R L A M P A S S ' Y ( 7 2 3 - 0 0 8 0 - 0 0 )
PL1 176-4501-10 PL3 176-4501-10 PL5 176-4501-10 PL1 176-7501-00 PL2 PL3 176-7501-00 176-7501-00

3A 2A 1A

S1

OFF PL2 PL4 PL6 176-4501-10 176-4501-10 176-4501-10 ACC LAMP ACC LAMP METER+ METER308-0413-00 308-0209-00 METERMETER+ 4 3 2 1 K1 K2 1 2

6A 5A 4A 354-1219-00

ON

METER SW 308-0206-00

K1

2 ACC LAMP 1 ACC LAMP K1 308-0213-00

473 /2E

R47K 3D

330 3D

200 3F 473 /2E

102 /2C

101 /2D

Q4

3 583-0226-00 1

1 2 3 4

!

369-0029-00

C33

470 /2H

D5

D9

P O W E R A M P A S S 'Y ( 7 1 7 - 0 0 7 4 - 0 0 - R )
20mV TP1
+ - 308-0221-00 +10mV> 2 1 <-10mV

16.5mA

16.5mA

2.0mA

19.1mA

C35

101/2D

C33 101/2D

R7

243

1.17mA

Q3 <+75V R10 D18 LN1VB60 <+102V D9 ! C19 104 /2E R10 R112 1SS83 101 /2H 151 /2H C25 Q17 Q15 < <+2.1V 101 R43 +0.55V Q19 Q21 Q23 Q25 Q27 Q29 Q31 R35 101 /2H Q13 101 Q33 Q35 C29 D1 R21 102 R27 680 2H D3 R77 101 R25 C15 101 R17 +16V> 101 /2D 5 C5 D5 C31 6 D6 C6 R19 R34 101 2H 45mA -16V> 2H 1 R41 R42 D17 Q40 R47 2 201 R44 101 -0.55V Q16 101 /2H C30 102 /2B 101 /2H 1SS83 D10 -102V C20 104 /2E Q18 Q20 < Q22 Q24 Q26 Q28 Q30 Q32 Q34 Q36 -2.1V> Q14 C26 R29 224 8 R18 753 C8 100/1H 680 3D C40 6980F 2H 223 /2E 32.4mA C9 Q39 R48 R33 102 Q9 Q7

R9

332 3F

R11

1211F

332 3F

AC GND AC 112 C23 472 /2A R99 Q5 R73 C13 102 /2B

3 2 1

7681F 2H

Q1

R88

7681F 2H

D15

C37 101 /2D

C27 221/2A

!

! R111

308-0321-00

K3 K4

R90 R89 752 752

TS1

R14

220

! R84 101

R13

220

R23

C21 220 /2D Q37

Q2

Q41

308-0408-00

TH TH TP+ TP-

1 2 3 4

C42

369-0029-00_SIDE

Q4

R8

243

C4 1000F 2H 7 IC1B R15 86R6F 2H

104 /1H

Q51

S

Q53

R71 331 W4 W6 W1 W5 W2 W3 R72 331 YEL

R4

R79

561

243

K1 308-0416-00

303 7871F R24 R52 R51 R47K R47K 3D 3D R54 R53 R47K R47K 3D 3D R55 R56 R47K R47K 3D 3D R83 7871F R16 2R2 3A 7680F 2H

R86

4R7

R2 101/2D

R6

D19

100/1H

Q45

NF
GRY

Q43

GND2
BLK

R95

220

753 C2

GND1
YEL

R96

220

R62 R61 R47K R47K 3D 3D

R64 R63 R47K R47K 3D 3D

R66 R65 R47K R47K 3D 3D

R60 R59 R47K R47K 3D 3D

R68 R67 R47K R47K 3D 3D

R58 R57 R47K R47K 3D 3D

R70 R69 R47K R47K 3D 3D

GND -IN +IN GND

1 2 3 4

Q44

R92 R91 752 752

152 /2E

473/2E 473/2E 200 3F

OUT
RED

+97.2V
VIO

C1 BP R20 753 D13 VR1 IC1A 2 3 R36 3 101 C7 C16 Q10 151 /2H BP 4 R26 Q6 C14 R78 332 3F R74 332 3F D4 101 R22 102 R28 680 2H <-75V Q8 101 1

Q46

C10

010 /1H

R3

561

R81

C3 100 /1H R85 101 C24 472 /2A

243

220

R97

R98

220

Q48 R10 112 R100

R94 R93 752 752

R82

243

R12

1211F D2

C34 101/2D

C36 101 /2D

C32 101 /2D

C28 221/2A

10 9 8 7 6 5 4 3 2 1

SEMICONDUCTORS
Q16 Q51 Q52 Q53,54 2SK330-Y 2SA1085-D/E 2SC2547-D/E Q17,19,21,23,25 27,29,31,33,35,37 2SC5358-O/R Q18,20,22,24,26 2SA1986-O/R 28,30,32,34,36,38 Q39 2SC4685 2SA1986-O D1,2 D3,4 D5,6 D9,10

+DC H +GATE -GATE -DC H +DC -DC +OUT -OUT +BASE -BASE

-17R30 681 D14 !

152 /2E R1 R5

R80

243

Q52

303

753

D20

R87 4R7

Q54

Q49

S

100 /1H C41

Q47

120 3D R50 R49 R47K R47K 3D 3D

-97.2V

Q38

104/1H

Q42

C22 220 /2D

Q50

D16

K2
308-1023-00 CAUTION

IC1

NJM4580D-D

Q9

2SA1480-E/F

HZ153L HZ6A1L 1Z15A 1SS83

D13,17 D14 D15,16 D18 D19,20

HZ6C2L HZ2ALL MA167 LN1VB60 MA165

! Attention mark indicating critical components for safety. Replacement must be made with identical parts of specified part number.

Q1,4,43,46,47,50 2SA1376A-K

Q10,40

2SC3790-E/F

Q2,3,44,45,48,49 2SC3478A-K

Q13

2SC4793

Q5,7,41

2SA1145-Y

Q14

2SA1837

Q6,8,42

2SC2705-Y

Q15

2SC5358-O

P R O T E C T I O N A S S 'Y ( 7 2 0 - 0 0 6 4 - 0 0 )
IC6 TA7318P-2 R7 C18 100 /1E

G O1 H1 I1 VI2 H2 O2 V+

-30dB

+24V

R31

1 2 3 4 5 6 7 8 9

1
102 2H C17 681 R8 682 D11 MA165 R11 362-2232-00 RELAY1 362-2232-00 RELAY2

VR1 583-0156-00

3

C11

METER LAMP + METER UNIT ACC LAMP

473 2H 513 334 R39 152 C14 R42 152 C16 221 /1E

104

R32103

2

4R7 /1V

R37 513

3 R38

+12V 8 +24V 2 1
UPC4570C MA165 D8 D9 100 MA165 IC8A

R40 475

100 C13 502 334 R25 223

C15

9 11 13 16 1 16 1

R36

R33 103

154

R41 475

8 6 4

9 11 13

8 6 4

9 8 7 6 5 4 3 2 1

2
VR2 R12 682

METER SW METER SW GND K3 308-0910-00

7

C12

R35 154

4

6 -12V

IC8B

5
IC5 R9 102 2H UPC1237HA

4R7/1V

R34 UPC4570C

OL CV LH AC G RD MT VC

472

1

583-0536-00

0dB

3

-24V +24V
Q1 2SA1507_S/T -

R21 C24

to OUTPUT

114 R23 622 R24 R20 471 R22 623

6 5 4 3 2 1 1 2 3 4 5 6 7 8
221 /0J

R30 104

R6

R5 6R8 3F

200 3F

G

R3 472 102 /1V 102 /1V C7 104 C3

104 102 C4 /1V

220 /1E C6

C8 104

G

G

- 18 C10 4R7 /1V C22 010 /1H 222 2H R28 472 D6MA165 TC74VHC4040F IC4 R26 C19 C23 104 R29 103 D10 HZ6A1L 220 /1E R27 104 102

GND SIG OUTPUT RELAYOUTPUT RELAY + -12V to RELAY GND 308-0610-00

K4

-12V

K6 OVER HEAT

308-0408-00

D5

R13 123

10

1 2 3 4 12 13
TC74VHC132F IC7D

THERMAL SENSER T.P. T.P.

MA165

D4

R14 823

4 6 5
TC74VHC132F R18 R17 332 TC74VHC132F C20 104 102 IC7A R19

IC7B

11

9 11 10

IC7C

X1 RN1202

8
TC74VHC132F K5 308-0408-00 THERMAL SENSER T.P. T.P. CAUTION

MA165

D2 MA165

R16 223

1 3

308-0207-00 K2 to RUSH RELAY 1 GND 2 -24V

R15 822 105 C21 100 /1E

2

D3 MA165

CLKQ1 Q2 RST Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12

9 7 6 5 3 2 4 13 12 14 15 1

1 2 3 4

D7 1SR139-400 IC1 NJM78L12A

! Attention mark indicating critical components for safety. +12V
C5 IC3 NJM78L05A

AC 21V from P.T. AC 21V 0V K1 C1 C2

3 2 1 I O

R1 ! R10

D1

VCC I O
C9 220 /1E 220 /1E C25 104 C26 104

Replacement must be made with identical parts of specified part number.

S1VB60 +24V

308-0321-00

! R2

R10

R4 472

I

O -12V IC2 NJM79M12FA

-24V







SPECIFICATIONS

[Guaranteed specifications are measured according to EIA standard RS-490.]

2,000watts into 1 ohm() 1,000watts into 2 ohms 500watts into 4 ohms 250watts into 8 ohms Note:The rating marked()is for music signals only. 0.05 , with 2-ohm load 0.03 , with 4 to 16-ohm load 0.003

2,000W 1,000W 500W 1 2 4

0.05 0.03

2 4 16

0.003 20 20,000Hz 0 0.2dB 1W 0.5 160,000Hz0 3.0dB 28.0dB :2 to 16 ohms :1 to 16 ohms 400 1.78V 0.11V 1W 2 16 1 16

At rated continuous average output :20-20,000Hz0, 0.2dB At 1 watt outout :0.5-160,000Hz0, 3.0dB 28.0dB

Continuous output Music signal output 400

1.78 V for rated continuous average output 0.11 V for 1 watt output



40k 20k

Balanced Unbalanced

:40 kilohms :20 kilohms

(A-weighted) 125 dB with input shorted. at rated continuous average output

(A ) 125dB dB/ AC100V 50/60Hz

Logarithmic compression scale Output indication in dB and

AC120V/230V ,50/60Hz (Voltage as indicated on rear panel)

170W 853W 550W 8 465mm× 258mm × 545mm 49.0kg

170 watts idle 853 watts in accordance with IEC-65

465 mm (18-5/16") width 258 mm (10-3/16") height 545 mm (21-7/16") depth 49kg 58 kg (108.0 lbs) net (127.8 lbs) in shipping carton

2004.9

861-3133-00

2-14-10 SHIN-ISHIKAWA, AOBA-KU, YOKOHAMA, JAPAN

Printed in Japan