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Bi-lingual

Service Information
STARTING WITH SERIAL No. G6Y001

Authorized Technical Service Only


Power Amplifier P-7100
P-7100 Schematic Diagram
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
Decoration Screw /4pcs. (630-0306-04) Washer /4pcs. (637-9050-04) Front Glass (172-0142-03) Meter (178-2042-00) Heat Sink (240-0072-20)

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

Push-button for METER/INPUT ×2pcs. (388-5067-03) Input Switch Assembly Ass'y (716-0742-00)

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

Knod for Gain (380-1501-04) Gain Switch Assembly Ass'y (716-0743-00)

Handle (132-0114-03)

Heat Sink (240-0072-20)

Top Plate (150-0078-02A) (170-0069-12)

Front Panel Assembly Ass'y (130-0191-01)

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

Handle (132-0114-03) Foot (238-0023-00) Bottom Plate (155-0081-02)

Sub Panel (134-0158-02)

mark parts not supplied




FRONT VIEW ()
8
7 9

Meter/ (178-2042-00)

1

3

3

5
1. 2. 3.

4

2
1pce. 1pce. 2pcs. 1pce. 1pce. 1pce. 1pce. 1pce. 2pcs. 6. 7. 8.

6
Knob=380-1501-04 Front Glass=172-0142-03 Decoration Screw=630-0306-04 Washer=637-9050-04 Nut=633-2032-02 Panel name Plate=180-1104-03 Indicator=173-9087-03 Acrylic Plate=172-0104-24 1pce. 1pce. 4pcs. 4pcs. 4pcs. 1pce. 1pce. 2pcs.

Front Panel Assembly Ass'y (130-0191-01)

4. 4-1. 4-2. 4-3. 4-4. 5.

Front Panel=131-0191-01 Sub-panel=134-0158-02 Handle=132-0114-03 Push-button=388-5061-13 /POWER Push-button Frame=113-0122-04 Coil Spring=285-1022-04 Washer=637-0043-04 E-ring=647-1055-00 E- Push-button=388-5067-03 /METER,INPUT

8-1. 8-2. 9. 9-1. 9-2.

REAR VIEW ()
Foot / (238-0020-22) Binding Serew /4×14 (611-0414-02)6pcs.

SP Terminal(Black) () (313-1022-12)

SP Terminal(Red) () (313-1023-12)

Cap /
A cap is only used for SP terminal of European Model.

Rear Panel
(135-0184-02) Knob/ (384-2001-04) Pin Jack (302-0115-00) Pin Jack Cover (254-2015-04) Foot/ (238-0023-00) Binding Serew /4×14 (611-0414-02)

Heat Sink/ (240-0072-20) Handle/ (132-0105-03)

Circut Breakr/ D,U type (311-0204-00)20A E type (311-0104-00)10A XLR (Cannon) Receptacle (302-8011-00) Connector Cover/Female (254-2012-00)

AC Inlet/AC (301-3304-00) Power Supply Cord D type:680-1404-10 U type:680-2402-00 E type:680-3402-00



mark parts not supplied

TOP VIEW ()
Output Assembly Ass'y (716-0740-00)

Heat Sink (240-0072-20) Power Amp Assembly Ass'y (717-0089-10)

Heat Sink (240-0072-20) Power Transformer (510-2060-00) Name Plate (180-3059-04) Power Amp Assembly Ass'y (717-0089-10)

Electrolytic Capacitor C002,003:56,000F/80V (CE331WG1K563CAQ)

Protection Assembly Ass'y (720-0077-10)

Meter Lamp(R)Assembly Meter Lamp(L)Assembly (R) Ass'y (L) Ass'y (723-0124-00) (723-0123-00) Pilot Lamp/PL1,2,3 Pilot Lamp/PL1,2,3 (176-4501-10) (176-4501-10)

BOTTOM VIEW ( )
Input Assembly Ass'y (716-0741-00) Handle/ (132-0105-03) Spacer/ (250-1154-14) Circut Breakr/ 20A/ D,U type(311-0204-00) 10A/ E type (311-0104-00)

MPP Capacitor MPP (CF99MF2E473MR46) C001:0.047uF/250V

Diode(A)Assembly (A)Ass'y (716-0745-00) Diode/ (S25VB60) RELAY (362-2106-00) Inrush Protector Assembly Ass'y D,Utype(716-0744-01) E,type (716-0744-03)

Diode(B)Assembly (B)Ass'y (716-0746-00) Diode/ (S25VB60)

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




FRONT VIEW (Sub-chassis side)
LED Assembly (723-0122-00) LED / D1,2 (SDPW3DGOBO-J) Input LED Assembly LED Ass'y (723-0130-00) Bridge LED Assembly LED Ass'y (723-0131-00)

Meter (178-2042-00)

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

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

Back View of Front-Panel Assembly (
Panel Name Plate
(180-1104-03)

Indicator
(173-9087-03)

Hexa Bolt /4pcs. (631-0011-10)

Acrylic Plate
/2pcs. (172-0104-24)

Gain Switch Assembly Ass'y (716-0743-00) 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.


Input Switch Assembly Ass'y (716-0742-00)

mark parts not supplied

MISCELLANEOUS(
NO Description() PC Board for Out Put Assembly Input Assembly Inrush Protector Ass'y Power Amp Assembly Protection Assembly PL13 PL13 S001 RELAY001 RELAY 1,2,4,5 CP001 Pilot Lamp Power Switch/ Relay/ Output Relay Circut Breakr T20A T10A Parts No.(No.) Remarks() NO. Description( ) Parts No.(No.) Remarks( ) 4×12mm M5×12 6pcs. 4pcs. 115-1685-00 115-1686-00 115-1689-00 115-1692-20 115-1693-20 176-4501-10 176-4501-10 354-1023-00 362-2106-00 362-2230-00 Meter Lamp(L) Ass'y Meter Lamp(R) Ass'y for Power for Inrush Output Ass'y Screws for Front Panel / Flat Head /B 613-0412-01 Handle / Hexa Hole bolt/ 631-0011-10 Power Amp Assembly Ass'y Hexa Hole bolt/ 631-0011-00 Handle / Hexa hole Bolt/ 631-0023-00 Top Plate / Star-hole Bolt Bottom Plate / Binding Neil Screw B Foot for Binding Foot for Binding

M5×12mm

12pcs.

M4×4

16pcs. 7pcs.

631-0048-00

M5×15

311-0204-00 311-0104-00 CE331WG1K563CAQ

for 100-120V for 220-240V 56,000uF/80V

631-0054-00

3×10mm

13pcs.

C002,3

Electrolytic Capacitor Metallized Film Capacitor MPP Diode Outer Carton Top Box Inner Sub-Carton Outer Carton Bottom 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

C001

CF99MF2E473MR46

0.047uF/250V

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

4×14mm 4×14mm

4pcs. 6pcs.

D1 D1 Packing Material

S25VB60 S25VB60 800-0274-04 801-0248-00 801-0249-00

Diode(A) Ass'y Diode(B) Ass'y

Power Transformer/ / Front Glass / Decoration Bolt / Washer / Nut /
Accessories Owner's Manual ( )

60C-0614-02

4pcs.

630-0306-04 637-9050-04 633-2032-02 820-2240-00 820-0240-00 821-0011-00 821-0010-00 827-1090-00 180-9230-00 859-1011-00 680-1404-10 680-2402-00 680-3402-00 254-2015-04 254-2012-00 English Japanese English Japanese E type

4pcs. 4pcs. 4pcs.

803-0319-10 803-0320-00 803-0323-00 803-0321-20 813-0322-10 249-0012-00 810-4867-04 Front() Rear () Front() Rear () 6pcs.

( ) Caution Notes EC Power Supply Cord (D type) (U type) (E type) Pin Jack Cover /

(D only) (D only) 2-conductor 2-conductor 3-conductor 2pcs. 2pcs.

801-0247-20

810-4545-04 810-2030-04 812-2435-04 280-0043-00

AC for AC Cord

Connector Cover for female ()

About Voltage Change /
The voltage of a product is used according to the safe method of the area. It is set only to 100V in Japan. When voltage change is required, the accepted specialist carries out according to directions of our company. Therefore, it waits for directions of our company. 100V100V



Output Assembly (716-0740-00) Ass'y
C2 RELAY3 C3

C1

C4 RELAY5

RELAY1 D1

K1 D3

RELAY2

RELAY4

Diode Connector Purg Tarminal Relay

D1,3 D2 K1 T1,2,3,4 RELAY1,2,4,5 RELAY3

1SR139-400 MA165 308-0707-00 314-0523-04 362-2230-00 362-2234-00

Choke Coil Polyester Capacitor Oxide Metal Film Resistor Carbon Film Resistor

L1,2 C1,2,3,4 R1,6 R2,5 R3,4

506-0009-00 CQ922M2A473K-BF RS143FA200JS-P RS143DA100JS-P RD142EA100JFS 0.047uF100V 20 2W 10 2W 10 1/4W

Input Assembly (716-0741-00) Ass'y
RELAY1 RELAY4 RELAY6 JK1 JK3 JK4 JK2

S1 RELAY2 IC1 RELAY7 IC4 IC3 F2

F1

K1

K2 K3 IC2 RELAY3 RELAY5

K4

Audio Connector Jack Pin Jack Connector Plug

JK1,2 JK3,4 K1 K2 K3 K4

302-8011-00 302-0115-00 308-0521-00 308-0514-00 308-0420-00 308-0528-00 MA165 11EQS10 1SR139-400 NJM4580D-D UPC78N18H UPC79N18H 310-8102-00

Electrolytic Capacitor Polyester Capacitor

C5,6,18,20 C23,24 C1 C2,8,16,21,25,26

CE04W1E470LXZE 47uF/25V CE04W1E390LXZE 39uF/ 25 CQ922M2A103K-B 0.01uF/100V CF922MF2E104KDAZ 0.1uF/250V 330pF /100V 4700pF/100V 1500pF/100V 1500pF/100V 0.33uF/ 50V 1k 1/6W 4.70k1/6W 23.2k1/6W 649 1/6W 412 1/6W 82k 1/6W 1.27k1/6W

Polypropylen Capacitor C3,9,17,22 C4 C7,19 C12,13 C27,28,29 Metal Film Resistor R1,8,32,38 R4,11,30,35 R6,9,31,33 R12,26 R16,18 R19,20 R21,28

CQ922N2A331JAPHF CQ922PG2A472JDTGF CQ921PG2A152JDTNF CQ93PP2A152JM-F CF922N1H334JL RN142CK1001F RN142CK4700F RN142CK2322F RN142CK6490F RN142CK4120F RN142CK8202F RN142CK1271F

Diode IC

D1,3,4,5,713,15,16 D17,18 D19,20 IC1,2 IC3 IC4 F1,2 S1 RELAY17

IC Protector IC Rotary Switch Relay

Carbon Film Resistor 336-3903-00 362-2234-00

R2,17,22,24,36 RD142EA332JFS 3.3k 1/6W R5,7,13,29,34,39 RD142CA274J 270k 1/6W R10,14,23,25 RD142EA330JFS 33 1/4W



Input Switch Assembly (716-0742-00) Ass'y
PC Board PC 115-1687-00 K1 S1,2 C1,2 308-0306-00 354-1116-00 CK92Y5VH104Z 0.1uF/50V

S1 C1 S2 C2 K1

Connector Plug Push Switch Ceramic Capacitor

Gain Switch Assembly (716-0743-00) Ass'y
K1
PC Board PC Connector Prug Rotary Switch K1 S1 115-1688-00 308-0514-00 336-4010-10

S1

ln-rush Protector Assembly (716-0744-01) for D/Utype Model Ass'y ( /USA ) <716-0744-03 for Etype Model>
R3 R2
PC Board PC Fuse Resistor R5,6 R1,2,3,4 J2.3 (D,U Model) J1 (E Model) 115-1689-00 RF993HG2R2J RW994AJ3R3J-S 678-0100-00 2.2/5W 3.3/5W

J J R4 R6

J R1 R5

Metal Plate Resistor Jampa Wire

Jampa Setting/ VOLTAGE Ass'y NO J1 J2 J3 100-120V 716-0744-01 220-240V 716-0744-03

Input LED Assembly (723-0130-00) PC Board LED Ass'y PC
K1 D1 D2
LED Spacer LED Connector Plug LED K1 D1,2

115-1724-00 250-1118-00 308-0311-00 SEL2610C

Bridge LED Assembly (723-0131-00) PC Board LED Ass'y PC
LED Spacer LED

115-1725-00 250-1118-00 K1 D1 308-0232-00 SEL2610C

K1 D1

Connector Plug LED



Diode(A) Assembly (716-0745-00) (A) Ass'y
PC Borad PC 115-1690-00 D1 R1 S25VB60 RS143DA100JS-P 100 2W

D1 R1

Diode Oxide Metal Film Resistor

Diode(B) Assembly (716-0746-00) (B) Ass'y
C3 C2
PC Borad PC Connector Plug K1 D1 C1,2 C3 R1,2 115-1691-00 308-0207-00 S25VB60 CF922MF2E103KDAZ CF922MF2E104KDAZ RD143HA333JFS 0.01uF/250V 0.1uF /250V 33k 2W

K1

D1

Diode Polyester Capacitor Carbon Film Resistor

C1

LED Assembly (723-0122-00)
D1 D2
PC Borad PC Light Holder LED Spacer LED Connector Plug K1 D1,2 115-1694-00 234-1112-03 250-0061-00 308-0209-00 SDPW3DG0B0-J

K1

Light Holder / (234-1112-03)

LED

Meter Lamp(L) Assembly (723-0123-00) (L) Ass'y
K1
PC Board PC Pilot Lamp Connector Plug PL1,2,3 K1 115-1695-00 176-4501-10 308-0209-00

PL1

PL2

PL3

Meter Lamp(R) Assembly (723-0124-00) (R) Ass'y
K1
PC Board PC Pilot Lamp Connector Plug PL1,2,3 K1 115-1696-00 176-4501-10 308-0209-00

PL1

PL2

PL3



C6

Power Amp Assembly (717-0089-10) Ass'y
Q2

Q4 R4

IC3 Q10 Q20 Q28 Q34 Q6 Q8 R11 R19 R25 R40 R53 Q23

Q38

Q36

TP2 Q40 Q42 Q46 Q52 R80 R90 R94 R107 R109

C2 TS1

Q44
C46

K3 K2 C1
Connector JackAssembly Ass'y W1,2,3,4,5,6 (309-2649-14)

VR2 Q48 Q51 Q49 Q53 Q47
VR1

IC1

C45

Q43

R1
Q1

R5
Q3

R13
Q5

R20 R26
Q7 Q9

IC2

R95 R106 Q22 R69 R73 R81 R91 Q33 Q35 Q39 Q41 Q45 Q19 Q21 Q50 Q37 TP1

Transistor Insulator Connector Plug Potentiometer IC K2 K3 TP1,2 (Test Point) VR1,2 IC1 IC2 IC3 TS1 D3,4 D58,2225 D11,12 D1316,20,21 D17 D1,2 D9,10,18,19 Q1,3,5,7,9,33,35,39,41,45,50 Q2,4,6,8,10,20,36,40,42,46,52 Q11,13,15,17,48 Q12,14,16,18,47 Q19 Q21 Q22 Q23 Q24,26,29,31 Q25,27,30,32 Q28 Q34 Q37,53 Q38,51 Q49 Q43,44 CE04W2D220PBE CE04W1H100VPE CE04W1H010VPE CE04W1H220KZEE CE04W1E390LXVE CE04W2D101PBE CE692WG2A102M14 CE04W2A220LXVE

250-1224-04 308-0416-00 308-0212-00 308-0221-00 583-0226-00 NJM5532D-D UPC79N18H UPC78N18H 369-0029-00 11EQS10 MA165 1SS83 1SR139-400 LN1VB60 HZ9A2L HZ6C2L 2SA1986-O/R 2SC5358-O/R 2SC3478-K/U 2SA1376-K/U 2SA1986-O 2SA1837 2SC3790-E/F 2SA1480-E/F 2SC2705-Y 2SA1145-Y 2SC4793 2SC5358-O 2SA1507-S/T 2SC3902-S/T 2SC4685 2SK330-Y 22uF / 200V 10uF / 50V 1uF / 50V 22uF / 50V 39uF / 25V 100uF /200V 1000uF/100V 22uF /200V

Polyester Capacitor

C5,8 C6,7,1922, 3336,41,42 C43,44 C9,10 C24,25,26,27 C23,28,29,30 C31,32

CQ922M2A473K-BF CF922MF2E104KDAZ CQ922M2A103K-B CQ921PG2A152JDTNF CQ922N2A472JAPHF CC92CH2H101J CC92CH2H151J

0.047uF/100V 0.1uF/250V 0.01uF /100V 1,500pF/100V 4,700pF/100V 1,000pF/500V 1,500pF/500V 2.2 33k 75k 15k 22 100 1.5k 5.6k 82k 1k 120 470 330 3k 24k 820 150 0.1 332 4.42k 4.42k 1.91k 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 1/4W 1/2W 1/4W 1/4W 1/4W 1/2W 1/4W 3W 3W 3W 2W 2W 2W

Polypropylen Capacitor Ceramic Capacitor Carbon Film Resistor

Thermal Switch Diode

Zener Diode Tarnsistor

R2,3,6,7,12,14,21,22 RD142EA2R2JFS 30,39,41,72,74,79,84,89, 92,93,100,104,108,110 R9,10 RD142EA333JFS R17,18 RD142EA753JFS R28,31,35,38 RD142EA153JFS R29,32,34,37,4649 RD142EA220JFS R33,36,50,54,61,71, RD142EA101JFS 103,111,112 R42,43,44,45 RD142EA152JFS R56,57,58,60 RD142EA562JFS R59 RD142EA823JFS R62,63,64,65 RD142EA102JFS R82,83 RD142EA121JFS R85,88 RD142EA471JFS R86,87 RD142EA331JFS R96,97 RD142HA302GFS R101,102 RD142HA243GFS R105 RD142EA821JFS R66,67,68,70 R75,76,98,99 R23,24 R27 R51,55 R52 R8 R15 R16 R77 R78 RF142HA151J RF142EAR10J RN142HK3320FF RN142EK4421F RN142HK4421FF RN142EK1911FF

Fuse Resistor Metal Film Resistorr

FET

Oxide Metal Film Resistor

Electorlytic C1,2 Capacitor C3 C4 C1114 C1518 C3740 C45,46 C47,48

RS143FA200JS-P RS143FA302JS-P RS143FA332JS-P RS143DA161JS-P RS143DA470JS-P

20 32k 33k 1.6k 47

Metal Plate Resistor

R1,4,5,11,13,19,20,25,26 40,53,69,73,80,81,90 91,94,95,106,107,109

RW993DJR47K-H 0.47



Protection Assembly (720-0077-10) Ass'y

VR1 IC3

VR2 VR3 IC7

VR4 IC9 IC11 RELAY1 RELAY3 IC8 IC10 K101 RELAY2

K10 K8 K6 K4 K2

IC14

K13 K11 K9 K7 K5 K3 K1

IC1 IC4 IC6 IC2 X1 IC5 Q1 Q2 IC12

Q3 X3 X2 IC13

Connector Plug

K1 K2 K3 K4 K5,101 K6 K7 K8,11 K9 K10,13 RELAY1,2,3 VR1,3 VR2,4 D1,2 D3,5,7,1418 D11,12,13 D19 D20 D4,8 D21 D9,10 Q1 Q2 Q3 IC1 IC2 IC3,7 IC4 IC5,8 IC6 IC9,11,13,14 IC10 IC12 C1 C2,3,6,21,26,38 C7,9,1315,18,20 30,33,34,42,43 C4,22 C19 C24,37 C25 C36 C39,41

308-0308-00 308-0509-00 308-0207-00 308-0707-00 308-0508-00 308-0214-00 308-0306-00 308-0216-00 308-0407-00 308-0206-00 362-2232-00 583-0536-00 583-0156-00 11EQS10 MA165 MA167 S1VB60 1SR139-400 HZ242L NNCD5.6F-A-T1B MA2YD28 2SA1507-S/T 2SC3902-S/T 2SC2458-GR UPC1237HA UPC78N12H TA7318P-2 UPC79N12H UPC4570C UPC78N05H PC817-B/C PIC16F630-I/P S-80845CLY CE04W0J221VRE 220uF/6.3V CE04W1V4R7VRE 4.7uF /35V CE04W1E100VRE 10uF /25V CE04W1E221VRE CE04W1E102VK CE04W1V101VRE CE04W1H471KW CE04W1V471VRE CE04W1H102LXZE 220uF /25V 1000uF/25V 100uF /35V 470uF /50V 470uF /35V 1000uF/50V

Didital Tarnsistor Polyester Film Capacitor Polyester Capacitor Ceramic Caacitor

X1 X2,3 C5,10,23,27,45

RN2223 RN1202 CF922N1H334JL 0.33uF/50V

C12,29 C44

CQ922M1H681K-B CQ922M1H223J-B CK92Y5V1H104Z CC14CH1H100JS RD142HA302JFS RD142CA133J RD142CA103J RD142CA104J RD142CA913J RD142CA243J RD142CA152J RD142EA475J RD142CA513J RD142CA154J RD142CA622J RD142CA682J RD142CA472J RD142EA221JFS RD142CA223J RD142EA751GF RD142CA101J RD142CA471J RD142CA123J RD142CA473J RD142CA332J RD142CA474J RD142CA273J RD142CA220J RD142CA102J RD142CA100J RD142CA681J RF142EAR10J RN143FA6R8JS-P

681uF / 25V 0.022uF/25V 0.1uF/50V 10pF/ 50V 3k 10k 10k 100k 91k 24k 1.5k 4.7M 51k 154k 6.2k 6.8k 4.7k 220 22k 750 100 470 12k 47k 3.3k 470k 23k 22 1k 10 680 1/4W 1/6W 1/6W 1/6W 1/6W 1/6W 1/6W 1/4W 1/6W 1/6W 1/6W 1/6W 1/6W 1/4W 1/6W 1/4W 1/6W 1/6W 1/6W 1/6W 1/6W 1/6W 1/6W 1/6W 1/6W 1/6W 1/6W

Relay Potentiometer Diode

C8,16,17,31,32,35,40 C11,28 R1,70 R2 R3,26,28,46,52,60 R4 R5,9 R6,29 R8,16,30,36 R10,15,31,35 R11,17,32,37 R12,13,33,34 R14 R18,25,38,45 R19,24,44 R20,22,40,42 R23,43 R39,47 R41,48 R49,50,57,58 R51 R53 R54 R55 R56 R59 R62 R61,67 R65,66 R63,64,71,72 R68,69

Cabon Film Resistor

Zener Diode Shot-key-diode Tarnsistor IC

Fuse Resistor - Metar Film Resistor

0.1 1/4W 6.8 3W 180 150 470 2W 2W 2W

Elctorlytic Capacitor

Oxide Metal Film R7 Resistor R21 R27

RS143AA181JS-P RS143AA151JS-P RS143AA471JS-P



CIRCUIT ADJUSTMENT ( )
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 110 watts output for about 15 minutes, check bias adjustment again. 110 STEP ADJUST ITEM PROCEDURE
TEST EQ'PT CONNECTING POINT

ADJUST

REMARKS

Bias Current Adjustment for Power Amp Assembly (Located Power Amp Assembly / 717-0089-10)

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 (717-0089-10) Test Point pin

VR2 forL ch. VR1 for R ch.

Adjust for 22mV reading of V.O. meter 22mV

2

Bias Current of R ch. Power Amp R ch.

Meter Calibration (Located Protection Assembly / 720-0077-10)

1

for L ch.

Peak-0dB Calibration
VTVM Input : 1kHz Sine Wave

L ch.0dB

VR3 for L ch. VR1 for R ch.

2

for R ch.

Peak-0dB Calibration

R ch.0dB

3

30dB Calibration : 1kHz
for L ch. L ch. 30dB Load :None

Speaker Terminal

Adjust input signal so that VTVM reads 31.62V.Then adjust VR3 and VR1 so that meter read 0dB. VTVM 31.62V 0dB VR3,1 Adjust input signal so

VR4 that VTVM reads -30dB, for L ch. and set VR4 and VR2 to VR2 for R ch.

4

30dB Calibration
for R ch. R ch. 30dB

meter indication -30dB. VTVM "-30dB" -30dB VR4,2

VR2
Test Point / TP2

VR1





Test Point / TP1

Lch. Power Amp Assembly (Ass'y) (717-0089-10)

Rch. Power Amp Assembly (Ass'y) (717-0089-10)

Protection Assembly Ass'y (720-0077-10)

Meter Calibration /

VR4
Lch.-30dB

VR3
Lch. 0dB

VR2
Rch.-30dB

VR1
Rch. 0dB

1 1

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

Top Carton Box (800-0274-04)

Joint /6pcs. (249-0012-00)

Top Pad Case
Wrapping Sheet (810-4545-04) (801-0248-00)

Accessories Case (801-0247-20) 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) (803-0321-20)

Accessories/
Manual Caution Notes () () Power Supply Cord

Bottom Carton Box (801-0249-00)

1 2

Service Information
MODEL
SUBJECT

No. P-7100-001
Accuphase Laboratory Inc. Issued 2006-8-21

: P-7100
: Stabilization of the maximum output at the time of power-supply-voltage change is improved.

Details ; The clip point of the maximum output at the time of power-supplyvoltage change is improved. ; Ass'y10
Preparation Parts /
Carbon Film Resistor Carbon Film Resistor Carbon Film Resistor Zener Diode / / / / RD142EA823JFS RD142HA243GFS RD142HA302GFS HZ6C2L 1pce. 2pcs. 2pcs. 2pcs.

Caution for the Pb-free solder / Solder absorber and a soldering gun use only for Pb-free. Pb-free solder uses the solder of tin(Sn), copper(Cu), and nickel(Ni). (C7N are displayed on PC Board) / Our standard= SN100C by Nihon Superior Co.,Ltd. (C7N) ()SN100C *Solder uses Pb-free solder

Power Amp Assembly (717-0089-00) Ass'y
R59
753J823J to be changed

D10

HZ9A2LHZ6C2L to be changed

R97

302JFS302GFS to be changed

R102 R101

243JFS243GFS to be changed 243JFS243GFS to be changed

D9

HZ9A2LHZ6C2L to be changed

R96

302JFS302GFS to be changed

Following parts are changed. / Zener Diode / D9,10 HZ6C2L Carbon Film Resistor/ R59 RD142EA823JFS Carbon Film Resistor/ R96,97 RD142HA302GFS Carbon Film Resistor/ R101,102 RD142HA243GFS
1 3

Service Information
MODEL : P-7100

No. P-7100-002
Accuphase Laboratory Inc. Issued 2006-8-9

SUBJECT : Noise generating at the time of a power supply OFF is prevented at the time of unbalanced connection and input switch positionof balance. OFF
Details ; When it inputs out of balance, an input switch is made into a balance position and Power Supply OFF is carried out further, a possibility that a noise will occur is prevented. The Capacitor and Diode of a protection circuit are changed and deleted. ; OFF

Preparation Parts /
Polyester Film Cappacitro Diode / / 318-0402-00 MA167 1pce. 3pcs.

Caution for the Pb-free solder / Solder absorber and a soldering gun use only for Pb-free. Pb-free solder uses the solder of tin(Sn), copper(Cu), and nickel(Ni). (C7N are displayed on PC Board) / Our standard= SN100C by Nihon Superior Co.,Ltd. ( C7N) ()SN100C *Solder uses Pb-free solder

"10"seal

STEP/ (1)Remove the Top Plate and Protection Ass'y. Ass'y (2)The Capacitors and Diode are changed and deleted as shown in Figure. (3)The Ass'y number after a measure is showsto"10" as end, and indicates by 10seal. Ass'y10 "10"
to be changed / D11,12,13MA165MA167

to be deleted D6:MA165

to be changed / C45:CF922N1H104JLCF922N1H334JL
Countermeasure Level / ;L21

1 4

Service Information
MODEL : P-7100

No. P-7100-003
Accuphase Laboratory Inc. Issued 2007-3-28

SUBJECT : Hum noise generated immediately after a power supply ON is prevented.
Details ; When a unit switches on a power supply in an unusually cold situation and the state where a power supply is not switched on for a long time, hum noise may occur. In this case,the following measures are effective. ;
Preparation Parts /
Carbon Film Resistor / RD142EA101JFS 100 1/4W 4pcs.

Contents / The leg of the base of a transistor (Q 51, 53) is removed from a pattern round, and between them, as shown in a figure, Resistor(100ohms) is soldered. The end of an Ass'y number is 10 (717-0089-10) after a measure. (Q51,53) (100) Ass'y 10(717-0089-10)
*Solder uses Pb-free solder * The following serial is certainly carried out. Serial No. with G6Y001 100

Power Amp Assembly (717-0089-00) Ass'y

Q51 (2SC3902)

Q53 (2SA1507)

10 sticker

Carbon Film Resistor

RD142EA101JFS

100 1/4W

Caution for the Pb-free solder /

Solder absorber and a soldering gun use only for Pb-free. Pb-free solder uses the solder of tin(Sn), copper(Cu), and nickel(Ni). (C7N are displayed on PC Board) / Our standard= SN100C by Nihon Superior Co.,Ltd. (C7N ) () SN100C

()

Countermeasure Level / ;L22

1 5

P - 7 1 0 0 M A S T E R C I R C U I T D I A G R A M
L CHANNEL INPUTS
20k-OHM UNBALANCED 40k-OHM BALANCED

R CHANNEL INPUTS
20k-OHM UNBALANCED 40k-OHM BALANCED

2G 1G 1A

2G 1G 1A

308-0521-00 K1 GND-C 1 2 GND L-BAL+ 3 L-BAL- 4 5 GND 308-0420-00 K3 1 GND 2 R-BAL+ 3 R-BAL4 GND

+ -

22mV

K1
TS TS 309-2281-04

1 2

TS1 ! 369-0029-00

TP1
H-GND W7 BLK (GRN) GRY BLK GRN RED VIO 309-2649-14 123456 + GRN (GRN) W1 W3

125W/8ohm(31.62V) 250W/4ohm(31.62V) 500W/2ohm(31.62V)
-

1 1G 3

2

1 1G 3

2

2 1

Lch OUTPUTS

K2 308-0416-00
1 2 3 4
GND INPUT INPUT + GND

+24V
-24V 5 GND 4 +24V 3 BRG 2 BAL-RLY- 1

Lch

INPUT Ass'y 716-0741
+12dB / +9dB / +6dB / 0dB

-24V 2A 3A 4A 1B 2B 3B
S1A

2 AC 1 AC

308-0528-00 S1B

5A
DMO DMO NOR BRG NOR BRG

4B 5B

1A

5 MAX 4 -3dB 3 -6dB 2 -12dB 1 +24V

308-0212-00

2 1

K4

K3

POWER AMP Ass'y 717-0089 TP2
+ 22mV

L SIG K1 308-0707-00 BLK GRY W6 W2 W4 W5

7 BRG-RLY+ 6 BRG-RLY5 O-RLY+ 4 O-RLY3 2 R SIG 1 GND

Output Ass'y
716-0740

308-0514-00

K2 K1
TS TS 309-2281-04

+ TS1 ! 369-0029-00

22mV (YEL) 309-2649-14

INPUT SWITCH Ass'y

/716-0742

GAIN SWITCH Ass'y /716-0743
2A -12dB 3A -6dB 4A -3dB 5A MAX 1B -12dB 2B -6dB 3B -3dB 4B MAX
S1A 336-4010-10 S1B 336-4010-10

1 2

TP1
123456

YEL

T3
+

T4
Rch OUTPUTS
-

METER

UNB/BAL

1 3

2 4 354-1116-00
RELAY

S1

1 3

2 4 354-1116-00
LED

S2

K2 308-0416-00
1 2 3 4
GND INPUT INPUT + GND

NFB C-GND M-GND OUT +75V -75V

W6 W4 W5 W1 W3 W2 W7

(GRN) GRY BLK GRN RED VIO BLK

125W/8ohm(31.62V) 250W/4ohm(31.62V) 500W/2ohm(31.62V)

1A

5B

RELAY

1 UNB/BAL+ 2 GND 3

Rch

M-SW +

1 +24V 2 -12dB 3 -6dB 4 -3dB 5 MAX

2 AC 1 AC
308-0514-00

H-GND

308-0212-00

2 1

K1

308-0306-00

K1

K3

POWER AMP Ass'y 717-0089 TP2
+ 22mV

DIODE (B) Ass'y
RED BLK VIO RED BLK VIO

308-0707-00 +75V C003 56000u 80V

K4
1

716-0746
VOLTAGE Ass'y Number 100V-120V 716-0744-01 220V-240V 716-0744-03 J1 J2 J3 C1 D1 S25VB60

+75V RED R1 33k 0.5W 308-0207-00

2 TS 1
TS

K8 308-0216-00
2 TS 1
TS

INRUSH PROTECT Ass'y
at 100V,120V / 716-0744-01 at 220V,230,240V / 716-0744-03
!

10n 250V R2 33k 0.5W

2 1
K1 C002 56000u 80V -75V

L SIG 2 GND 3 R SIG 4 O-RLY5 O-RLY+ 6 BRG-RLY7 BRG-RLY+ M-SW 2 GND 1 U/B SW 308-0306-00 K7 308-0214-00 1 BRG-LED+ 2 BRG-LED308-0206-00 K10 M-LAMP 1 M- LAMP 2

3UNB D1 2 BAL 1 SEL2610C

INPUT LED Ass'y 723-0130
D2

BRIDGE LED Ass'y 723-0131
2 1
D1 SEL2610C K1 308-0232-00

3

K1

308-0311-00

K11 308-0216-00
5 -24V 4 GND 3 +24V 2 BRIDGE 1 BAL-RLY-

K1

K2

-75V VIO AC57V ORG

C2 10n 250V

K6

METER LAMP (L) Ass'y 723-0123 2
308-0209-00

METER LAMP (R) Ass'y 723-0124 2
308-0209-00

C3 100n 250V
AC57V GRN

1

1

K1
176-4501-10 176-4501-10 176-4501-10

K1
176-4501-10 176-4501-10 176-4501-10 +

RELAY001

BLK +

2 1

K2
! 510-2060 !
117V ORG 100V RED 0V GRY GRN BLK ORG YEL BRN YEL BRN GRN GRY BLU AC 57V 0V AC 57V AC 65V AC 65V

308-0509-00

! 2
S001

BLU-

1

3 4

5 4

PROTECTION Ass'y 720-0077 K13 308-0206-00
M- LAMP M-LAMP

WHT BRN

PL1

PL2

PL3

PL1

PL2

BRIDGE CONNECTION 500W/8ohm(63.3V) BRIDGE CONNECTION 1kW/4ohm(63.3V)
PL3 M RM R+

W6 NFB W4 C-GND W5 M-GND W1 OUT W3 +75V W2 -75V

T1

T2

2 1

!
AC 100/120V AC220V/230V/240V 50/60Hz

DIODE (A) Ass'y 716-0745
!
D1 S25VB60

C001 47n 2 1

117V YEL 100V BRN 0V WHT

N(W) !

L E N
BLU

AC 65V AC 65V AC 22.5V 0V AC 22.5V

BLU GRN GRY

3 AC 22.5V 2 AC 22.5V 1
0V

W2 BRN BLK + BLU -

K3 308-0207-00
1 BLK+ AC RELAY 2 BLU-

LED-UNB4 LED-BAL3 INPUT LED INPUT-LED+ 2 ACC-LED+ 1 ACC-LED ACC-LED308-0508-00 K5 308-0407-00 K9 ML- 1 M L+ 2 METER M R- 3 M R+ 4

-

MLM L+

- 1 6 ! !
3

1 2 5

10A at 220V/230V/240V 354-1023-00 20A at 100V/120V CP001

K1

308-0308-00

L ch Meter
+

R ch Meter

!

308-0209-00 2 1

LED Ass'y
723-0122
D1 D2 SDPW3DG0B0-J

W1 VOLTAGE SELECTOR VOLTAGE SELECTION TABLE 3 2 (~) 4 (~) 1 YEL BRN.RED WHT.GRY 100V BRN YEL.ORG 120V WHT.GRY YEL.GRY RED 220V BRN WHT BRN YEL.GRY 230/240V ORG WHT

R1 10 2W 5 ORG RED ORG RED

K1

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

O U T P U T A S S 'Y

( 7 1 6 - 0 7 4 0 - 0 0 )
RELAY1 362-2230-00

I N P U T S W I T C H A S S 'Y
( 7 1 6 - 0 7 4 2 - 0 0 )
LCH OUT + 314-0523-04 314-0523-04

5 2 1

4 3 6
1SR139-400 D1

T1

T2

UNBAL/BALANCE SW

1 3

506-0009-00

from PROTECTION Ass'y K7
UNB/BAL+ GND M-SW +

2 4 354-1116-00

S2

K1
1 2 3

from POWER AMP (L) Ass'y

GRN W1 L INPUT
W3

L1 R2 10

1uH 2W

1 2 5

6 3 4
RELAY2 362-2230-00

C2 100n

GRN

NFB

308-0306-00

C1 100n

1 3

from PPROTECTION Ass'y K4
BRG-RLY+ BRG-RLYO-RLY+ O-RLYSIG R GND SIG L

2 4 354-1116-00
METER SW

S1

20 47n 47n 3.16W 100V 100V

K1

R1

7 6 5 4 3 2 1

308-0707-00 C1

G A I N S W I T C H A S S ' Y
( 7 1 6 - 0 7 4 3 - 0 0 )
S1B

from POWER AMP (L) Ass'y

BLK W2 L GND
W6

R3 10 R4 10

from POWER AMP (R) Ass'y GRY

6 7 8 9 10

R GND
RELAY3 362-2234-00

MA165

C2

47n 47n 20 100V 100V 3.16W

from INPUT ASSY K2

5B
308-0514-00

C4

YEL

W4 506-0009-00 L2 R5 10 1uH 2W

RELAY4 362-2230-00

4B MAX 3B-3dB 2B-6dB 1B-12dB 336-4010-10

D2

5 4 3 2 1

C3

R6

from POWER AMP (R) Ass'y

1SR139-400

NFB YEL W5 R INPUT

5 2 1

4 3 6

MAX -3dB -6dB -12dB +24V

5 4 3 2 1

314-0523-04

1 2 5

6 3 4

314-0523-04

D3

3.3 10W

! ! !
J3

3.3 10W

R3

R2

R6

2.2

R5

2.2

3.3 10W

3.3 10W

R4

R1

J2

J1

- 1 7 -

K1
1A

S1A

T3

T4

5A MAX 4A-3dB 3A-6dB 2A-12dB 336-4010-10

RELAY5 362-2230-00

I N - R U S H P R O T E C T O R A S S 'Y
D t y p e :( 7 1 6 - 0 7 4 4 - 0 1 ) E t y p e :( 7 1 6 - 0 7 4 4 - 0 3 )

+ RCH OUT

D I O D E ( A ) A S S ' Y
( 7 1 6 - 0 7 4 5 - 0 0 )

D I O D E ( B ) A S S 'Y
( 7 1 6 - 0 7 4 6 - 0 0 )

! ! !
RED +75V 308-0207-00 BRN W2

!
D1 S25VB60 ! R1 10 2W

BLK

2 1

R1 33k 0.5W C1 10n 250V D1 S25VB60 R2 33k 0.5W

from CONDENSER GND
VIO

K1

BLU W1

! Attention mark indicating critical components for safety.

-75V AC57V AC57V

C2 10n 250V

ORG GRN

C3

K1
WHT VOLTAGE Ass'y Number 100V-120V 716-0744-01 220V-240V 716-0744-03

K2
BRN J1 J2 J3

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

100n 250V

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

I N P U T A S S ' Y ( 7 1 6 - 0 7 4 1 - 0 0 )
+17.4V
C5 47u 25V C6 47u 25V C2 100n 250V C8 100n 250V C9 330p R8 +17.4V 1.00kF

L E D A S S 'Y
( 7 2 3 - 0 1 2 2 - 0 0 )
to POWER AMP Lch Ass'y K2
K1
1 2 3 4 5 GND-C GND L-BAL+ L-BALGND
308-0521-00 S1A BRG NOR 1A DMO 336-3903-00 S1B BRG NOR 5B DMO C4 4.7n 100V

2 1 3 4 -17.4V
IC1A NJM4580D-D R14 33 R10 33

from PROTECTION Ass'y K5

8

JK3

D1 308-0209-00 ACC-LED+ ACC-LED-

D2

Lch
302-0115-00

23.2kF

C12

270k

1A 1G 2G
R7

R11 470F

-17.4V

UNB/BAL

10 9 8 7 6

1.5n 100V

R9

+24V
C3 330p R1 1.00kF

2 1

SDPW3DG0B0-J

RELAY1 362-2234-00

K1

23.2kF

+24V

+24V 2
310-8102-00

1.5n 100V

270k R13

302-8011-00

270k

R5

2 3 1 1G

C1 10n 100V

R4 470F

7 5
IC1B NJM4580D-D

F1

Lch JK1

C7

6

3.3k 0.25W

R6

F2
310-8102-00

1

R12 649F 82.0kF R16 412F RELAY2 362-2234-00 RELAY5 362-2234-00 R21 RELAY4 362-2234-00 1.27kF R19

4B 3B 2B 1B

-24V

25 4 3 2 1

-24V GND +24V BRIDGE BAL-RLY-

from PROTECTION Ass'y K2

1 2 3 4 5

5A 4A 3A R2 2A

MA165

D1

1

336-3903-00

K4
308-0528-00

M E T E R L A M P ( L ) A S S' Y ( 7 2 3 - 0 1 2 3 - 0 0 )
from PROTECTION Ass'y K13

6 7 8 9 10

6 7 8 9 10

330n

330n

D19

O I
C25 100n 250V C26 100n 250V

D10 C29 D9 MA165 MA165 MA165 MA165 MA165 MA165 MA165 MA165 MA165

-12dB

-3dB

82.0kF

C24 39u 25V

-24V
R18 412F

-6dB

C23 39u 25V

1SR139-400 D17 11EQS10

5 4 3 2 1

5 4 3 2 1

5 4 3 2 1

+24V 5 4 3 2 1
308-0514-00

-12dB R22 -24V -6dB
C22 330p R38 +17.4V 1.00kF 3.3k 0.25W R24

D7 D11 D12 D5 D13 D4 D3

-24V
R28 1.27kF R20

from GAIN SELECTOR Ass'y K1

+24V

+18V

+17.4V

G

C27

C28

330n

IC3 UPC78N18H

6 7 8 9 10

O I -24V

D18 11EQS10 1SR139-400 D20

3.3k 0.25W -3dB R17 3.3k 0.25W

176-4501-10

176-4501-10

K2

R26

PL3

PL2

176-4501-10

IC4 UPC79N18H

-18V

-17.4V

MAX -3dB -6dB -12dB +24V

308-0209-00 M- LAMP M-LAMP

2 1

G

K1

23.2kF

4

470F R39 270k C13 R31 D16 MA165 D15 MA165 1.5n 100V

5 4 3 2 1

1 2 3 4 5

302-0115-00

-17.4V

UNB/BAL

23.2kF

C19

6 7 8 9 10

10 9 8 7 6

R33

R34

270k R29

270k

2 3 1 1G

1.5n 100V

Rch JK2

RELAY7 362-2234-00

RELAY6 R35 362-2234-00 470F

7 5
IC2B NJM4580D-D

-17.4V

6 7 8 9 10

6

-24V
R25 33

D8

C20 47u 25V

C21 100n 250V

RELAY3 362-2234-00

DUAL

BRIDGE

C17 330p R32 1.00kF

MA165

C18 47u 25V

C16 100n 250V

R23 33

K3
1 2 3 4 GND R-BAL+ R-BALGND
308-0420-00

302-8011-00

-24V

M E T E R L A M P ( R ) A S S 'Y ( 7 2 3 - 0 1 2 4 - 0 0 )
from PROTECTION Ass'y K10
308-0209-00 M- LAMP M-LAMP

I N P U T L E D A S S 'Y ( 7 2 3 - 0 1 3 0 - 0 0 )
from PROTECTION Ass'y K5
LED-UNBLED-BALINPUT-LED+ 308-0311-00

B R I D G E L E D A S S' Y ( 7 2 3 - 0 1 3 1 - 0 0 )

2 1

K1
176-4501-10 176-4501-10 176-4501-10

3 2 1

UNB D1 D2 SEL2610C

to POWER AMP Rch Ass'y K2

5 4 3 2 1

- 1 8 -

PL1

2 1 3
IC2A NJM4580D-D +17.4V R36 3.3k 0.25W

JK4

Rch

1A 1G 2G

R30

649F

8

BAL

308-0232-00

from PROTECTION Ass'y K6

BRG-LEDBRG-LED+

2 1

BRIDGE D1 SEL2610C

SEL2610C

K1

PL3

PL2

PL1

K1

R27 4.42kF

39u 25V 100n 250V

39u 25V 100n 250V

39u 25V 100n 250V Q13 Q12 Q11 39u 25V 100n 250V C19 R31 <1mA R32 R35 R28 15k 22 2SC3478_-K/U 2SA1376_-K/U <1mA R34 <1mA R29 C20 C21 <1mA R37 22

CGND

15k

22 2SC3478_-K/U

2SA1376_-K/U

22

15k

D22 D5 R42 R46 22 R47 22 R23 332F 0.5W 2SC3478_-K/U 1.5k MA165 MA165 1.5k MA165 MA165 2SA1376_ -K/U R48 22 IC1B NJM5532D-D 1.5k MA165 MA165 -57V 2SA1376_-K/U R56 5.6k Q24 Q25 4.7n 100V <2.6mA R63 4.7n 100V <2.6mA R64 1k R70 150 0.5W C35 C38 100n C36 C39 100n 250V 100u 200V Q31 5.6k 5.6k Q26 4.7n 100V <2.6mA R62 C24 R57 R58 C25 C26

<1.2mA <1.2mAR43 D6 D23 D24 D7 R44 <1.2mA

R66 150 0.5W <10mA 2SC2705_ -Y 2SA1145_ -Y 250V 100u 200V

-57.6V

+57.6V

1k Q29 Q30 -58.2V R67 150 0.5W

2SC2705_ -Y

2SA1145_ -Y 1k

D9 -51.6V Q22 -51V HZ6C2L

+51V Q23

+51.6V

1 2
583-0226-00 VR2 200

2SC3790_ -E/F

1 2
583-0226-00 VR1 200

R98

R99

C32

D17 LN1VB60

1SS83

150p

150p

R8

C5

D11 100 R54

D15 1SR139-400

20 47n 47n 3.16W 100V 100V 2SA1507_-S/T Q37

100 +1.8V Q28

R82 Q21 C28 120 R77 2SA1837_ Q19 R50 100 470 R85 R78 160 2W 47 2W

Q34 +1.2V

GND 2SK330_-Y Q43

Q44 2SK330_-Y

S
D20 R112 100 D19 HZ6C2L HZ6C2L D18 100 Q47 2SA1376_-K/U

S

+0.6V

314-1108-04

314-1108-04

R111

0V

2SA1986_ -O

Q51 2SC3902_ -S/T

R3 2.2 C41 100n 250V

R1 0.47 2W D13 R97 2SA1986_ -O/R R7 2.2 Q3

2SC3478_-K/U 22u 100V Q48

2SA1507_ -S/T 22u 100V Q53

R101

R96 3kG 0.5W

R102 3kG 0.5W

R5

24kG 0.5W

24kG 0.5W

2SA1986_ -O/R R14 2.2 Q5

0.47 2W 0.1 R13 0.47 2W 2SA1986_ -O/R R22 2.2 Q7 R20 0.47 2W 2SA1986_ -O/R R39 2.2 Q9 -24.5V +23.7V R15 R16 R26

+60V

C13 22u 50V

3.0k 3.16W

3.3k 3.16W C12 22u 50V

2SA1986_ -O/R R72 2.2 Q33

0.47 2W

R69

G

G
D3 D4

IC3 UPC78N18H

IC2 UPC79N18H

2SA1986_ -O/R R79 2.2

0.47 2W

R73 11EQS10 11EQS10 2SA1986_ -O/R R89 2.2 Q39 0.47 2W 330 R86

+18V

-18V

R81 C14 22u 50V C11 22u 50V 2SA1986_ -O/R R93 2.2 Q41 BGND 0.47 2W R91 2SA1986_ -O/R R104 2.2 Q45 0.47 2W R95 2SA1986_ -O/R R110 2.2 Q50 -0.55V 0.47 2W R106

TP2

TP1

2SA1986_ -O/R

0.47 2W

22mV + -

! Attention mark indicating critical components for safety.

1 2
308-0221-00

- 1 9 K2
GND -IN +IN GND 308-0416-00

1 2 3 4

AGND C4 75k R17 1u 50V R18 332F 0.5W 75k C10 1.5n 100V

HEATSINK

GND C9 1.5n 100V R24 250V BGND CGND C16

1

C3

10u 50V

C6 100n

+18V

-18V

4
R10

8
C7 100n 250V

C15 C17 100 Q14 100 R33 R36

3

2

C18 C22

R38

+18V

+18V

33k 15k

-18V

-18V

IC1A NJM5532D-D

5
Q18 Q16 -58.8V Q17 R49 22

6
D1 HZ9A2L D2 HZ9A2L <1.2mAR45 D8 +57V 2SC3478_-K/U +59.4V Q15 D25 1.5k MA165 MA165 33k

R9

7 +60V -60V
C34 100n 250V C37 100u 200V R59

R51 4.42kF

R55 4.42kF

R52 1.91kF

C27 Q27 4.7n 100V

R60 5.6k

0.5W

0.5W

0.5W

<2.6mA R65 2SC2705_ -Y 2SA1145_ -Y +58.2V Q32 1k R68 150 0.5W 2SC2705_ -Y 2SA1145_ -Y <10mA 250V 100u 200V C40 C33 100n

+60V

-60V
82k

D10 <1.41mA

3

HZ6C2L

K3

AC 2 AC 308-0212-00

R103

R105

1

3

Q49 100

820

<3.4mA

2SA1480_ -E/F

0.1

0.1

C31

!

!

C8

2SC4685_

2SC3902_-S/T Q38

D16 1SR139-400 C43 10n 100V C44 10n 100V R83 120 <15mA <25mA 470 R88 R61

D12 1SS83 C30 100p C29 100p

+85V

P O W E R A M P A S S ' Y ( 7 1 7 - 0 0 8 9 - 1 0 )

C23 100p 100p

-85V
C46 C45 1000u 100V 1000u 100V

+85V

-85V

R71 100

2SC4793_

2SC5358_ -O R2 Q2 Q1 R4 0.47 2W Q4 2.2 2SC5358_-O/R R6

1 2 3 4 5 6
D21 1SR139-400

1SR139-400

D14

1SR139-400 C42 100n 250V

1SR139-400

C47

C48

R11

2.2

!

R76

!

R75

+60V

-60V -60V Replacement must be made with identical parts of specified part number.

0.1

0.47 2W R19 0.47 2W R25 0.47 2W R40 0.47 2W R53

2SC5358_-O/R R12 Q6 2.2 2SC5358_-O/R R21 Q8 2.2 2SC5358_-O/R R30 Q10 2.2 2SC5358_-O/R R41 Q20 2.2

O I

O I

0.47 2W Q35 R80 0.47 2W R90 0.47 2W R94 0.47 2W R107 0.47 2W R109 0.47 2W 330 R87

2SC5358_-O/R R74 Q36 2.2 2SC5358_-O/R R84 Q40 2.2 2SC5358_-O/R R92 Q42 2.2 2SC5358_-O/R R100 Q46 2.2 2SC5358_-O/R R108 Q52 2.2 2SC5358_-O/R +0.55V 22mV

1 2

!

308-0221-00

+ -

TS1
369-0029-00

C2 22u 200V

C1 22u 200V

K1 1
2

W7

W6

HEATSINK

TS TS

309-2281-04

W3

W1
OUT

W5

W4
NF C-GND GRY

M-GND BLK

+75V RED W2 (+70V) VIO -75V (-70V) H-GND BLK

GRN

GRN

P R O T E C T I O N A S S ' Y ( 7 2 0 - 0 0 7 7 - 1 0 )
IC7 TA7318P-2

+12V
R42 R2 220 C42 10u 25V 6.8k

G O1 H1 I1 VI2 H2 O2 V+

330n R31 4.7M 0.25W

0dB R37 VR3 51k R32 1 3 5k 583-0536-00 51k R30 1.5k C23

150k

R33

583-0156-00 C28 10p

8

150k

R34

R40

7 5
IC8B UPC4570C R44 4.7k

C26 4.7u 35V

220

6

R46 10k

2

R43 22k

2 1 3 4
IC8A UPC4570C

R38 6.8k

D17 MA165 R57 1 IC13 A CO 470 2 K EM

3 2 1 VCC +24V 5 4 3 2 1
C43 10u 25V

-12V
IC3 TA7318P-2

308-0306-00 M-SW GND U/B SW

-12V +12V
R22 220

PC817-B/C

-24V-U

0dB R17 VR1 51k 1 3 R11 5k 583-0536-00 51k R8 1.5k C5

330n R10 4.7M 0.25W

R20

220

6 5

R26 10k

150k

R13

C11 10p

8

R3 10k

+12V 1

2

R23 22k

2 3 4
IC5A UPC4570C

4 1
D16 MA165

13 16

+24V-U
R58 470

8 6 4 1

9 11 13 16
R70 3.0k 0.5W

1 R68 6.8 3.16W2

K13
M- LAMP M-LAMP 308-0206-00

7
IC5B UPC4570C R24 4.7k

C6 4.7u 35V

R18 6.8k

D18

-12V

-12V

1 2

IC14 4 A CO 3 K EM PC817-B/C

MA165

1 2 3 4 1 2 3 <130mA 4 5 6 7 -24V-U -24V +24V 5 4 3 2 1 -24V 2 1 2 1

K9

-24V-U

MLM L+ to Meter M RM R+ 308-0407-00

Vpp +5V DATA GND CLK

OL CV LH AC G RD MT VC

IC1 to AC RELAY

UPC1237HA

+24V+24V-U
R14 6.2k

R66 680 RN1202 RN1202 R65 680 NNCD5.6F-A-T1B

R1

VCC

PIC PROGRAM

K101 308-0508-00 MA2YD28 100n D10

X3 X2

SIG L AGND SIG R O-RLYO-RLY+
BRG-RLYBRG-RLY+ 308-0707-00

R5 R9

91k 91k R4 C1 220u 6.3V

K3
1

G

!

R64

!

0.1 0.25W R72

+24V-U
Q2

+24V
100 470u 470u 100 2SA1507_ 50V 35V 2SC3902_ -S/T -S/T C24 C37

PIC16F630-I/P R27 IC2 470 1W UPC78N12H +12V R7 > 44mA O I 180 1W

470

-24V
Q3 R60 10k MA165 MA165 D14 D15 R59 R62 1.0k -GR 2SC2458_ 22

K2
308-0216-00

!
750G D8 0.25W C36 R48 R39 HZ242L HZ242L R47

0.1 0.25W D19 S1VB60

+12V
10u 25V 10u 25V C17 C16 100n 100n 10u 25V 10u 25V C32 C31 100n 100n C15 C19

G

10u 25V 10u 25V

G

IC6 VCC UPC78N05H > 32mA(46mA) 10u 25V C34 10u 25V

11EQS10 11EQS10

100u 35V

10u 25V

D1

C20

K1
0V AC 22.5V AC 22.5V 1 2 3

!

1000u 25V

R71

0.1 0.25W

C7

C39 1000u 50V

C30

O I

TS TS

C9

K8
308-0216-00

150 1W

< 48mA CAUTION -12V -12V IC4 UPC79N12H ! Attention mark indicating

G

308-0308-00

C41 1000u 50V

D2

C14

C33

C18

K11
R49 470

R21

O I

1 2

Q1

-24V-U

-24V

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

IC9 4 A CO 3 K EM PC817-B/C

-24V

to POWER AMP Lch Ass'y

ACC-LED

750G D4 0.25W C25 R41

100u 35V

10u 25V

C13

TS TS

to POWER AMP Rch Ass'y

MA2YD28

D21

D12 MA167

C38 R55 4.7u 470k 35V

R50

1 2

IC11 4 A CO 3 K EM PC817-B/C

100n

R54 3.3k

C45 330n

R52

10k C40

0.1 0.25W

D11 MA167

12k

O I

R56 27k

-24V GND +24V BRIDGE BAL-RLY-

to INPUT Ass'y

BLK+ 2 BLU308-0207-00

1SR139-400 D20 >57mA R63

100k D13 MA167

R51

100n D7 MA165

S-80845CLY IC12 R53 47k

1 2 3 4 5 6 7

VDD VSS RA5 RA0 RA4 RA1 RA3 RA2 RC5 RC0 RC4 RC1 RC3 RC2

14 13 12 11 10 9 8

C35

C44 C3 22n 4.7u 35V

VCC
C8

RN2223
R19 4.7k IC10

3.0k 0.5W

X1 5 4 3 2 1

308-0509-00

D9

to OUTPUT Ass'y K1

K4

1 2 3 4 5 6 7 8

to L Meter Lamp

583-0156-00

150k

R12

4.7u 35V

MA165

100k

R15 0.25W 4.7M C10 330n R16 1.5k C4 220u 25V

R6 24k

1 VR2 3 C2 2

-30dB

R25 6.8k

C12 680p D3

362-2232-00 R61 8 RELAY1 9 11 10 6

362-2232-00 RELAY3

308-0508-00 LED-UNBLED-BALINPUT-LED+ ACC-LED+ ACC-LED-

K5

Logo-LED / Input LED

4 3

K7

1 2 3 4 5 6 7 8 9

G O1 H1 I1 VI2 H2 O2 V+

to INPUT SW Ass'y

R28 10k

4.7u 35V

MA165

100k

R35 0.25W 4.7M C27 330n R36 1.5k C22 220u 25V

R45 6.8k

C29 680p

2

D5

R67

+12V

8 10 6 4 1

362-2232-00 RELAY2

9 11 13 16

R69 6.8 3.16W

2 1

K10

to R Meter Lamp

R29 24k

1 VR4 3 C21

-30dB

1 2

K6 to Bridge-LED
BRG-LED+ BRG-LED308-0214-00 308-0206-00 M- LAMP M-LAMP

1 2 3 4 5 6 7 8 9

- 2 0 -

BLOCK DIAGRAM



SPECIFICATIONS

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

Continuous Average Output Power (2020,000Hz) Stereo operation 1,000watts per channel into 1 ohm() (both channels driven) 500watts per channel into 2 ohms 250watts per channel into 4 ohms 125watts per channel into 8 ohms Monophonic operation 2,000watts into 2 ohms() (bridged connection) 1,000watts into 4 ohms 500watts into 8ohms Note: The rating marked()apply only to operation with music signals only. Total Harmonic Distortion Stereo operation(both channels driven) 0.05, with 2 ohm load 0.03, with 4 to 16 ohm load Monophonic operation (bridged connection) 0.03, with 4 to 16 ohm load Intermodulation Distortion 0.01 Frequency Response 0, 0.2dB At rated output: 20 - 20,000Hz At 1 watt output: 0.5 - 160,000Hz 0, 3.0dB Gain 28.0dB(with GAIN selector at MAX) Gain selection MAX, -3dB,-6dB,-12dB Output Load Impedance Stereo operation: 2 to 16 ohms Monophonic operation: 4 to 16 ohms
With music in signals only, 1-ohm loads are permissible for stereo operation and 2-ohm loads in monophonic operation.

(2020,000Hz)

1,000W/ch 1 () 500W/ch 2 250W/ch 4 125W/ch 8 2,000W 2 () 1,000W 4 500W 8 0.05 2 0.03 416 0.03 416 IM 0.01 20 20,000Hz 00.2dB 1W 0.5160,000Hz03.0dB
( )

28.0dB (GAIN:MAX) MAX,-3dB,-6dB,-12dB 216 416
1 2



300

Damping Factor 300 Input Sensitivity (with 8 ohm load) Stereo operation 1.26 V for rated output 0.11 V for 1 watt output Monophonic operation 2.52 V for rated output 0.11 V for 1 watt output Input Impedance Balanced: 40 kilohms Unbalanced: 20 kilohms Signal-to-Noise Ratio A-weighted,input shorted 122 dB (GAIN selector in MAX position) At rated output 127 dB (GAIN selector in -12dB position) Output Level Meters Logarithmic scale,with defeal switch -60 dB to +3 dB(indication in ) Power Requirements AC120V / 230V ,50/60Hz (Voltage as indicated on rear panel) Power Consumption 135 watts idle 945 watts in accordance with IEC-600655 Maximum dimensions 465 mm (18-5/16") width 258 mm (10-3/16") height 545 mm (21-7/16") depth Weight 49.0 kg (108.0 lbs) net 58.0 kg (127.9 lbs) in shipping carton

(8 ) 1.26V 0.11V 2.52V 0.11V S/N
A

1W 1W

40k()20k()

122dB GAIN MAX 127dB GAIN -12dB -60dB+3.0dB(dB/ ) AC100V 50/60Hz 135W 945W 610W 8 465mm× 258mm× 545mm 49.0kg

ACCUPHASE LABORATORY INC. 2-14-10 SHIN-ISHIKAWA, AOBA-KU, YOKOHAMA, JAPAN

0801 861-3158-00 Printed in Japan