background image

2

3

SPECIFICATIONS

ELECTRICAL PARTS LIST

R1-2

3009102973

RES CF 1K 1/5W J N

1K

R701-708,

3002120953

RES CF 12K 1/5W FN

12K 1%

R801-808
R709-710,

3009103973

RES CF 10K 1/5W J N

10K

R809-810
R711, R811

3009472973

RES CF 4.7K 1/5W J N

4.7K

R712, R812

3009473973

RES CF 47K 1/5W J N

47K

R713, R813

3009123973

RES CF 12K 1/5W J N

12K

SW702,

4618999910

SW SS65010-0203-9H-FN

SW

SW802

AN201

4355763507

CON ASS’Y 8P FLAT 150MM

CON 8P

AN501

4355763800

CON ASS’Y 6P S/D

CON 6P

C501-504

3409222871-T

CAP AF RSG 0.22UF 50V 5P

0.22/50

CN601

4428594903

LA5268/LAB0640/2.5MM-03P

CN 3P

LD501,

2300050105

LED LTL-307E-041A LITEON

GRE (EL204GD)

LD504
LD502,

2300052105

LED LTL-307G-041A LITEON

RED (SLR34UR)

LD506
LD503,

2300050105

LED LTL-307E-041A LITEON

RED (SLR34UR)

LD505
Q501-504

2008606108-T

TR NPN KTC2240BL (KTC3200BL)

KTC 2240BL

R501,

3089332275

RES NFR 3.3K 1/4W J R PHILKO

FR 3.3K

R504-508
R502-503,

3009223973

RES CF 22K 1/5W J N

22K

R509-510
R1105-1106 3009472973

RES CF 4.7K 1/5W J N

4.7K

VR501-502

3228075410

VR PI16 10KB (21 DETENT)

10KB

AN202

4355763507

CON ASS’Y 8P FLAT 150MM

CON 8P

AN802

4355763800

CON ASS’Y 6P S/D

CON 6P

C1001-1004 3409222871-T

CAP AF RSG 0.22UF 50V 5P

0.22/50

CN602

4428594903

LA5268/LAB0640/2.5MM-03P

CN 3P

LD1001,

2300052105

LED LTL-307E-041A LITEON

GRE (EL204GD)

LD1006
LD1002,

2300050105

LED LTL-307G-041A LITEON

RED (SLR34UR)

LD1005
LD1003,

2300050105

LED LTL-307E-041A LITEON

RED (SLR34UR)

LD1004
Q1001-1004 2008606108-T

TR NPN KTC2240BL (KTC 3200BL)

KTC 2240BL

R1001,

3089332275

RES NFR 3.3K 1/4W J R PHILKO

FR 3.3K

R1004-1008
R1002-1003, 3009223973

RES CF 22K 1/5W J N

22K

R1009-1010
R1103-1104 3009472973

RES CF 4.7K 1/5W J N

4.7K

VR1101-1102 3228075410

VR PI16 10KB (21 DETENT)

10KB

AN407

4355763718

CON ASS’Y 2P FILAT 420MM

CON ASS’Y 2P

L1101

2300050100

LED LTL-307E LITEON

LTL-307E012A

R1101-1102 3009622973

RES CF 6.2K 1/5W J N

6.2K

C1-2

3409215971-T

CAP AF RSG 1.5UF 50V 5P

1.5/50

C107

3409210141-T

CAP AF RSG 100UF 25V 6P

100/25

C108-109,

3409810141-T

CAP AF NP 100UF 25V

100/25 NP

C206, C306
C201, C301

3409547031-T

CAP AF 47UF 16V (MOSE)

47/16

C202, C302

3688471118

CAP MO SR22C 471JA

471JA

C205, C305

3698152198

CAP NPP POLY 152J 2J

152J

C208, C308

3678050177

CAP M1 DM1 C 050D5

050D5

C209-210,

3609222120-T

CAP MA 0.0022UF 100V J

0.0022M

C309-310
C213-214,

3609104122-T

CAP MA 0.1UF 100V J SMALL

0.1/100 (M)

C313-314
C218, C307

3678220177

CAP M1 DM 5C 220J5

220J5

CN2, CN304, 4428595003

LW5267/LWB0640/2.5MM-03P

CN 3P

CN306
CN201

4428595008

LW5267/LWB0640/2.5MM-08P

CN 8P

CN202

4355923806

CONNECTOR WAFER 06P (J.ST)

CN 6P

CN203A,

4355923804

CONNECTOR WAFER 04P (J.ST)

CN 4P

CN203B
CN301

4428595006

LW5267/LWB0640/2.5MM-06P

CN 6P

D111

2058100996

DIODE RECTIFIER LT1N4006 (4007)

1N 4006

Ref No.

Part No.

Value

Description

Ref No.

Part No.

Value

Description

AN303,

4355763615

CON ASS’Y 3P FLAT 330MM

CON 3P

AN406
AN306

4355763718

CON ASS’Y 2P FILAT 420MM

CON 2P

AN601-602

4355863620

CPM ASS’Y 3P FLAT 480MM

CON 3P

BD1

2058100998

DIODE KBPC3504

KBPC 3504

BD401-402

2058100979

DIODE BRIDGE (KBP01G/KBP153G)

KPBP 152

C26

3549472407

CAP SPARK KILLER 0.0047UF 400V

0.0047/400

C401-402

3619474153

CAP POLY TM 0.47UF 250V

0.47/250

C403-406

3419510300

CAP HM 10000UF/80V 35P*60

10000/80

C407-414

3509472530-T

CAP CE F 0.0047UF 50V Z

0.0047/50

C415-416

3409222171-T

CAP AF RSG 220UF 50V SG 10P

220/50

C417-418

3408247161

CAP RSA 470UF 35V SNAP 13P

470/35

C4190-420,

3409210071-T

CAP AF RSG 10UF 50V 5P

10/50

C422
C421

3408210261

CAP RSG 1000UF 35V SNAP 16P

1000/35

C423

3409210171-T

CAP AF RSG 100UF 50V 8P

100/50

C424-425

3409247071-T

CAP AF RSG 47UF 50V 6P

47/50

CN301-302

4355923806

CONNECTOR WAFER 06P (J.ST)

CN 6P

CN401-402,

4428595003

LW5267/LWB0640/2.5MM-03P

CN 3P

CN405
CN403

4428595009

LW5267/LWB0640/2.5MM-09P

7

D401-405,

2058100996

DIODE RECTIFIER LT1N4006 (4007)

1N 4006

D407
D406

2058502240

DIODE ZENER UZ-24BM (23.1, 25.5)

UZ 24BM

F6

5568224433

CIRCUIT BREAKER 20A (UL/CSA)

20A (UL/CSA)

F6

5568224633

CIRCUIT BREAKER 12A (DOM)

12A (DOM)

F6

5568224533

CIRCUIT BREAKER 10A (EUROPE)

10A (EUROPE)

F401-403

5508412234

FUSE TS 20MM 1A/250V U/C/S

T1AL/250V

IC401

2128610900

IC KA7815 COMMON

7815

IC402

2128610800

IC MC7915 COMMON

7915

INLET1

4448997410

AC INLET 6100.4315 250T SCURTE

AC INPUT

P401

4355789207

CON ASS’Y RED

ASS’Y

P402-403

4355789306

CON ASS’Y 1P ORG

ASS’Y

P404

4355789403

CON ASS’Y 1P BLK

ASS’Y

P405-407

4465998210

TERMINAL (250) PCB TAB

250T

PT4

2828063200

TRANS POWER 120Version (UL/CSA)

P.T (120Version)

PT4

2828063210

TRANS POWER 220Version (DOM)

P.T (220Version)

PT4

2828063220

TRANS POWER 230Version (EUROPE)

P.T (230Version)

PT4

2828063230

TRANS POWER 240Version (EUROPE)

P.T (240Version)

PO401-402

2438200515

THERMISTOR POWER NTC 5D-15

TH5D-15

Q401

2008606108-T

TR NPN KTC2240BL (KTC 3200BL)

KTC 2240BL

Q402

2028407990

TR NPN 2SC 3298A(Y), KTC4370A(Y)

KTC 4370

Q403

2028406113

TR NPN KTD 2058Y (D880Y)

KTD 2058Y

R401

3009122973

RES CF 1.2K 1/5W J N

1.2K

R403

3009822973

RES CF 8.2K 1/5W J N

8.2K

R814

3009102973

RES CF 1K 1/5W J N

1K

RY401

5528009993

RELAY VH-24H O.E.G/TAKAMISAWA

HR-CR6

SW1

4625996611

SW POWER (C1350AT) ARCOLECTRIC

POWER SWITCH

AN301

4355764114

CON ASS’Y 6P S/D 300MM

CON 6P

C610,

3409247071-T

CAP AF RSG 47UF 50V 6P

47/50

C710-713,
C810,
C812-813
C701-702,

3529560311-A

CAP CE SL 56PF 50V J AXIAL

56P

C706-707,
C801-802,
C806-807
C704-705

3409222071-T

CAP AF RSG 22UF 50V 5P

22/50

C709, C809

3509101231-A

CAP CE B 100PF 50V K AXIAL

100P

C714, C811

3539104531-A

CAP CE Y 100000PF 50V Z AXIAL

100000P

CN406,

4428595003

LW5267/LWB0640/2.5MM-03P

CN 3P

CN702A,
CNB802
CN701,

4428595004

LW5267/LWB0640/2.5MM-04P

CN 4P

CN802
D701-707,

2058304100

DIODE IN4148

1N 4148

D801-807
IC701, IC801 2118010432

IC NJM2068DD JRC

NJM 2068DD

IC702

2168220989

IC NJM 2068L JRC

NJM 2068L

JK701-702,

4438090310

JACK COMBINATION CXLF-06L

JACK

JK801-802
Q701, Q801 2028821134-T

FET 2SK372 BL-TYPE 4

2SK 372

POWER B’D (4005185900)

INPUT B’D (4005185910)

VR 1/2 B’D (4005185920)

VR 3/4 B’D (4005185930)

POWER LED B’D (4005185940)

AMP B’D (4005186000)

MODEL

QD-4960

100dB

0dB

20k

(Balance/Unbalance)

(Front) Power SW: Push up On/Push down Off 

Attenuator: 21-position dB calibrated

(Rear) Mode Sw: Bridged/Stereo/Parallel

AC 110V–240V, 50/60Hz

770W

17kg

482(W)

88(H)

369(D) mm

Input

Combination Jack (Balance)

Output 5-Way binding posts

4

Power Output Level

f=1kHz, THD+N 

0.05% (Typical)

QUAD

RL=8

RL=4

BRIDGED STEREO  RL=8

One Channel Driven

f=1kHz THD+N 

0.05% RL=4

Frequency Response RL=8

, P.=1W

Power Bandwidth Half Power, THD+N 

0.1%

STEREO RL=8

Total Harmonic Distortion (THD+N) 

f=20Hz~20kHz, Half Power

QUAD

RL=8

RL=4

BRIDGED STEREO  RL=8

Channel Separation Half Power RL=8

,

f=1kHz, ATT. max. Input 600

shunt

Residual Noise (DIN Audio Filter)

Signal-to-Noise Ratio DIN Audio,
Input 600

Shunt

Sensitivity (ATT max.)

Rated Power into 4

1kHz

Input Impedance (ATT max.)

Indicators

Protection

PC Limiter

Fan Circuit

Controls

Power Source

Power Consumption

Weight

Dimensions

Connectors

170W
240W
480W

240W

0dB+0.5, –1.5dB: f=DC~55kHz

10Hz~20kHz

0.05%

0.07%

0.07%

80dB

–85dB: ATT min.

Power (Red)
Protection (Mute)

4

(Red)

Clip

4

(Orange)

Signal

4

(Green)

Power SW ON/OFF muting
Heatsink Temp 

100°C (212°F)

RL=2

-50°C (122°F)-60°C (140°F)
Low-Speed – Variable – Hi-Speed

* Specifications and design subject to change without notice for improvements.

Summary of Contents for QD-4960

Page 1: ...SERVICE MANUAL Q U A D AMPLIFIER QD 4960 http www inter m com MADE IN KOREA NO 9007979200 ...

Page 2: ...s Mechanical Parts List 13 14 Ass y Drawing 15 16 CONTENTS IDLE CURRENT A Setting Set the master volume minimum B Connection C Adjustment Adjust VR301 so that the current through the R237 R236 R342 R343 become 10 milliampere When that voltage across the TP1 to TP2 becomes 10 millivolt the current becomes 10 milliampere ELECTRICAL ADJUSTMENT PROCEDURE TP1 TP2 R237 R342 R236 R343 VR201 VR301 AMP B D...

Page 3: ...AP AF RSG 100UF 50V 8P 100 50 C424 425 3409247071 T CAP AF RSG 47UF 50V 6P 47 50 CN301 302 4355923806 CONNECTOR WAFER 06P J ST CN 6P CN401 402 4428595003 LW5267 LWB0640 2 5MM 03P CN 3P CN405 CN403 4428595009 LW5267 LWB0640 2 5MM 09P 7 D401 405 2058100996 DIODE RECTIFIER LT1N4006 4007 1N 4006 D407 D406 2058502240 DIODE ZENER UZ 24BM 23 1 25 5 UZ 24BM F6 5568224433 CIRCUIT BREAKER 20A UL CSA 20A UL ...

Page 4: ...365 366 R368 R371 R373 R201 R301 3009271973 RES CF 270 1 5W J N 270 R203 R303 3003120953 RES CF 1 2K 1 5W FN 1 2K 1 R204 3009561973 RES CF 560 1 5W J N 560 R208 209 R304 R308 309 R205 R305 3009123973 RES CF 12K 1 5W J N 12K R206 R306 3009102973 RES CF 1K 1 5W J N 1K R623 R207 R307 3009121973 RES CF 120 1 5W J N 120 R213 R313 3009100973 RES CF 10 1 5W J N 10 R214 215 3089820275 RES NFR 82 1 4W J R ...

Page 5: ...WIRING DIAGRAM 6 7 ...

Page 6: ...8 BLOCK DIAGRAM ...

Page 7: ...9 10 SCHEHATIC DIAGRAM ...

Page 8: ...11 12 ...

Page 9: ...7 9 10 13 12 14 16 15 17 FAN POWER TRANS AC INLET CIRCUIT BREAKER KNOB CONTROL KNOB SLIDE 19 20 22 23 25 QX 4960 QD 4960 1 Q TY 1 1 2 1 REMARK PART NAME PART NUMBER Q TY REMARK 2 1 1 2 2 4 4 1 4 4 4 2 2 2 4 1 2 1 1 1 1 4 1 1 8095996930 8095996720 8095996520 8095997010 8095997110 8109340083 8009140083 8109330063 8009130064 25 NO WASHER SPRING NUT M10B FOOT FOOT FELT 27 26 28 DOT SCREW BM 3X8B SCREW...

Page 10: ...15 16 ASS Y DRAWING ...

Reviews: