Nad C-375-BEE Service Manual

LAUNAMECIVRES

HA/C

C375BEE

STEREO INTEGRATED AMPLIFIER

C375BEE C/AH

STEREO INTEGRATED AMPLIFIER

CONTENTS

FRONT PANEL/REAR PANEL VIEW3 SPECIFICATIONS4 ALIGNMENT PROCEDURE/ALIGNMENT POINTS WIRING DIAGRAM8

S

CHEMATIC DIAGRAM

PCB LAYOUT19-

ELEC

TRICAL PARTS LIST

EXPLODED VIEW49

EXPLOD PACKING DIAGRAM51

VERSION HISTORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

ED

VIEW PARTS LIST



9-18

28-48

5-7

27

50

SERVICE SAFETY PRECAUTIONS

1. Replacing the Fuses

CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE

REPLACE ONLY WITH SAME TYPE OF FUSE.

REFERENCE NO. PART NUMBER DESCRIPTION Rear Panel

AH A20-12103-00 Littelfuse618 T10AL/250V C A20-12702-20 Littelfuse618 T5AL/250V

STANDBY Board

F401 A20-12102-00 Littelfuse618 T1AL/250V

NOTE:

*AH : North American version only *C : European version only

2. Safety-check out (North American model only)

Before returning the product to the customer, make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit.

Parts marked with the symbol are critical with regard to the risk of fire and electric shock.Replace only parts recommended by the manufacturer.

- 2 -

'30/51"/&-3&"31"/&-7*&8

'30/5 1"/&-$0/530-4



    

 45"/%#:  45"/%#: -&%  #3*%(& .0%& */%*$"503  40'5 $-*11*/( */%*$"503  .140$,&5  3&.05&4&/403  1)0/&

4

   

 41&",&34 " #

 */1654&-&$5034  50/& %&'&"5  50/& $0/530-4  #"-"/$&  70-6.&

3&"3 1"/&-$0/530-4



         

0QUJPOBMQIPOPmodule

11  non-service-part

 .1JOQVU  $% */165  56/&3 */165  %*4$ */165  "69 */165  5"1&  5"1& .0/*503 */065  13& 065

 ."*/ */  13& 065  70-6.& 13& 065  #3*%(& .0%&  40'5 $-*11*/(

*/065

 

 *3 */065  

7 53*((&3 065  34  .$ */165  .$..48*5$)  1)0/0 (306/% $0//&$503  .. */165  41&",&34 " #  "$ ."  108&348*5$)  48*5$)&% "$ 065-&57WFSTJPOPOMZ  '64& )0-%&3

*/4*/165





- 3 -

SPECIFICATIONS

PREAMPLIFIERS SECTION THD(2V in 2V out,CCIF IMD,DIM 100) < 0.004 % Signal/Noise IHF re 500mV output A wtd. > 102 dB S/N re 2V output, max volume > 110 dB S/N re 100mV o/p (unity gain) > 92 dB Channel separation 1KHz > 80 dB 10KHz > 70 dB Input impedance 100kohms+320pF Max input, 0.1% thd > 8 V rms Output impedance pre out 75 ohms Output impedance variable out < 325 ohms Output impedance tape out source Z + 1k ohms Input sensitivity for 500mV out 158 mV Frequency response 20-20k tone defeat on < +/- 0.1dB

tone defeat off < +/- 0.5 dB Max output ( 0.03% thd) IHF load > 10 V Max output 600 ohm,s load > 10V Tone controls Bass at 100Hz +/- 8 dB

Treble at 10KHz +/- 5dB

POWER AMPLIFIERS SECTION Continuous average power , stereo,8 and 4 ohms at rated thd ,20-20k > 150W Continuous average power 8 ohms , bridge mode > 330W Rated thd, 20-20k, SMPTE and CCIF IMD, DIM 100 < 0.009% Clipping power ( 1% thd at 1kHz) >170W IHF dynamic power 8 ohms >250W IHF dynamic power 4 ohms >410W IHF dynamic power 2 ohms >600W IHF dynamic power 8 ohms(Bridge Mode) >800W IHF dynamic power 4 ohms(Bridge Mode) >1200W Peak output current 1msec, 1 ohm > 50A S/N A wtd re 1 W >102 dB S/N A Wtd re 150W >123 dB Damping factor ( re 8 ohms, 50 Hz and 1kHz) > 200 Frequency response 20-20k < +/- 0.1 dB Frequency response - 3dB 3Hz – 70 kHz Input impedance 10kohms+200pF Input sensitivity for rated power 1.2 V Voltage gain 29dB Headphone output impedance 270 ohms Channel separation. 1kHz > 85 dB

10kHz > 75 dB Trigger out Output resistance < 120 ohms Output current 50mA Output voltage +12V

OVERALL CD In Speaker Out THD 20-20k, CCIF IMD, DIM 100 , 0.25W to rated power < 0.009% S/N A wtd re 1 W > 94dB S/N A wtd re 150W ( volume set for 2V input) > 113 dB Frequency response 20-20k Tone defeat in < +/- 0.2 dB Frequency response -3dB 10 - 65kHz Channel separation 1KHz > 80 dB 10KHz > 70 dB Rated power ( 230 or 120 V AC 50.60 Hz) 290 W Standby power <1W Idle power <120W Net weight 15.3 kg Shipping weight 18 kg Dimensions 435x133x352 mm

- 4 -

ALIGNMENT PROCEDURE

A. DC OFFSET VOLTAGE

The DC OFFSET between OFFSET Test Point and AGND must be within 0+/-20mV.

B. IDLING CURRENT

The idling current in the output stage of the poweramp should be set to 30mA+/-5mA per

pnp-npn transistor pair (This means the mid point voltage is 6.6mV with down limit of

5.5mV and up limit of 7.7mV). The alignment procedure is: At first, adjust RV102 (Marked

as “Idling Current ADJ” in the drawing page 6) for a voltage of 6.6mV +/- 1mV between Test

point 1 and 2. Then preheat the unit for 1 minutes, let idling current settled and then readjust

to 6.6mV +/- 1mV. This is a no-load adjustment.

Pls note: Though the idling current is set as 6.6mV +/-1mV during the adjustment, due to the

influence of varied ambient temperature and mains voltage etc., the idling current will drift after

some time. During the normal checking of idling current in the service field, it’s acceptable as

long as the voltage is in the range of 5.5mV—7.7mV.

C. ISC SENSITIVITY

The ISC sensing voltage can allow 0mV+/-50mV. But, for the alignment process in our

factory, we tighten the limit to 0mV+/-10mV. That is to adjust Pot RV103 (as marked as

“ISC SENS ADJ” in the drawing page 6) to get a voltage between the “ISC SENSE TEST

POINT” and AGND to be 0mV+/-10mV.

D. MINIMUM VOLUME LEAKAGE CANCELLATION

The volume control, 20k potentiometer has a finite end stop resistance, variable and about

7 ohms max, so at minimum volume there is some signal leakage to pre out, appearing 29

dB higher at poweramp out. The cancellation circuit applies a fraction of the signal to the

negative input of the line out amp to cancel this leakage. The alignment procedure is: feed

1KHz/2V signal in CD. Set volume for 10V speaker out as 0 dB reference. Then set vol to

minimum. Adjust RV307 (Marked as “LEFT MIN. LEAKAGE ADJ” in the drawing page 7)

for a minimum at left speaker out, the reading should be < -86 dB, or 0.5mV. Adjust

RV308 (Marked as “RIGHT MIN. LEAKAGE ADJ” in the drawing page 7) for a voltage

minimum at right preout, the reading should be < -86 dB or 0.5 mV.

E. FREQUENCY RESPONSE

The frequency response should be set to 0+/-0.3dB. The alignment procedure is: Disable

tone defaet first, feed 1KHz/2V to CD, Adjust Preout to 500mV as 0dB reference level.

Change to 20Hz and set RV305 (Marked as “LEFT FREQUENCY RESPONSE ADJ” in the

drawing on page 7) to within +/-0.1dB. Then repeate the above for the RHC, adjust RV306

(Marked as "RIGHT FREQUENCY RESPONSE ADJ” in the drawing below) to within

+/-0.1dB.

- 5 -

ALIGNMENT PROCEDURE





  









- 6 -

ALIGNMENT PROCEDURE

















- 7 -

WIRING DIAGRAM

1 2

AC INLETAC INLET

12

POWER SWITCHPOWER SWITCH

AC OUTLETAC OUTLET

MAIN BOARD

FROM PAD1-6

P901BP901B

BINDING POST BOARD

PAD6 PAD5 PAD2 PAD3 PAD4 PAD1

TO P901B

TO L&R P 102B

P203AP203A

FROM P504A

P201BP201B

P213BP213B

TO EXT END MODULE

P214BP214B

RS232 BOARD

TO P204B

J701J701

P204BP204B

FROM P701A

P701AP701A

P205BP205B

FROM P 503A

J401J401

J402J402

FROM P 203A

LEFT POWERAMP BOARD

FROM P 211A

P401

FROM XFORMER

FROM P502A

FROM REAR PANEL L&N

TO P402B

P102BP102B

FROM P 209A

P101BP101B

P402

P404BP404B

P402BP402B

STANDBY BOARD

P502AP502A

P103BP103B

P403BP403B

FROM XFORMER

P211AP211A

TO LEFT P101B

FROM XFORMER

FROM P801A

P208BP208B

P801AP801A

TO P208B

HEADPHONE BOARD

P209AP209A

P206BP206B

TO LEFT P103B

FROM XFORMER (MDC 8.8V VERSION)

P217B

FROM P300

G2G1G2G1

P504AP504A

TO P201B

P210AP210A

TO RIGHT P 103B

P300

TONE BOARD

FROM XFORMER

FROM P301A

P202BP202B

P102BP102B

FROM P 203A

P212AP212A

P103BP103B

RIGHT POWERAMP BOARD

TO RIGHT P 101B

P207BP207B

P301AP301A

FROM P 212A

P101BP101B

TO P202BTO STAR GND

FROM P 210A

FROM P 501A

P302BP302B

P501AP501A

DISPLAY BOARD

- 8 -

TO P205B TO P302B

P503AP503A

SCHEMATICS DIAGRAM POWER AMP SECTION

VCC

+80V

+15V

TO MAIN BOA RD

P101B

11PIN2.54-C

-15V

P102B

TO MAIN BOARD

5PIN2.54-C

-80V

VSS

P103B

TO MAIN BOARD

5PIN3.96-C

C102

1 2 3 4 5 6 7 8 9 10 11

1 2 3 4 5

5 4 3 2 1

ST-22 90C L TYPE

PROTECT SCN/MUTE SCP ISC BIRIDGE

IN

FB GND OUT

/250V

100nF

CB101

R19410R194

10

R195

12

/250V

-15V

+80V

-80V

R12910R129

R1E2

R1E2 1meg

1meg

475

10

1N4148

R191

100

R192

100

R101

R193

100

MPSA92

D101

/1%

+

1N4148

Q149

C115

C115 10uF

10uF D103

D103

R195

100

1

C103

10uF

R12810R128

R1A3

100

+

10

R1A410R1A4

10

C101

O/P

/1W

D102

1N4148

C154

100nF

C155

100nF

D104

1N4148

/1W

D113

1N5404

R1E3

0.05

R1E4

100

R1E6

9.1K

D124

/3W

N.I.

Q102

2SA970

2SC2878

2SA1015

Q107

2SC2240

R134

N.I.

KSC2690A

Q103

2SC2240

R196

R196 100K

100K

R197

R197 100K

100K

Q104

Q105

R1A5

R1A5 100K

100K

R1A6

R1A6 100K

100K

Q108

2SA970

KSA1220A

R1E5

100

Q150

MPSA92

R1E7

R1E7 560K

560K

Q101

2SC2878

Q109

-15V

Q106

47pF

+

D123

N.I.

C110

100nF

C111

+

10uF

C112

C150

C150 10uF

10uF

R1101KR110

R1E8

R1E8 100K

100K

D127

/100V

10uF

+

12

Q113

2SC2240

Q114

2SC2240

R11515R115

15

R11715R117

15

Q115

2SA970

Q116

2SA970

+

C120

C120 10uF

10uF

D130

1N4148

R1F1

22K

IC104B

TL084CN

R1F2

10K

7

R1N71KR1N7

C144

100nF

1N4148

1K

R113

R113 220K

220K

22pF

R116

24K

C121

22pF

D127

C122

1N4148

R112

39K

/1%

+15V

R1A1

24.3K

R1A2

7.32K

R106

24K

R107

100

Q111

2SA970

Q112

2SC2240

R108

100

R109

24K

+

R105

R111

C119

39K

+

/1%

C107

C108

/1%

10uF

100

/100V

D129

10uF

1N4148

R1N81KR1N8

1K

CB102

ST-22 80C L TYPE

5

+

TP2

6

-

+

/100V

C105

10uF

C104

33pF

/1KV

R199

220

R131

N.I.

R1041KR104

1K

+

C125

C109

10uF

R103

/1%

549

/1KV

R102

C113

10K

/1%

120pF

/1KV

+

C114

R1A9

10uF

7.32K

/1%

1K

R1A8

220

C116

/1KV

33pF

+

C118

R1E1

/100V

10uF

RV103

10K

24.3K

VCC

13

CW

2

R1E9

330K

+

C143

C143 10uF

10uF

/1KV

R118

R118 220K

220K

R119

D115

/1KV

39K

C123

Q122

2SA970

D114

1N4148

Q151

2SC1815

R1F3

10K

R11482R114

R12082R120

D128

1N4148

R12182R121

82 Q117

Q117

2SC2240

D105

82

1N4148

Q118

2SA1015

R12610R126 10

Q119

2SA1013

R125

1 3

200

C124

430pF

Q120

2SC2383

/1KV

R12710R127

22pF

10

Q121

2SC1815

82

D108

1N4148

R12382R123

82

1K

R1F4

R1F4 10K

10K

D117

1N4148

/1KV

RV104

CW

R1H31KR1H3

/1W/1%

100

1N4148

270K

D121

N.I.

D106

1N4148

R122

R122 100K

100K

2

R124

R124 100K

100K

D122

N.I.

D107

ISC COMPARATOR

+

R1F5

/1%

+15V

R1F6

4.7meg

D116

1N4148

14

IC104D

TL084CN

C145

C145 10uF

10uF

D109

BAV21

+

-

R135

2.2K

470K

12

13

D110

BAV21

100nF

R1F7

C126

110K

Q129

2SA970

Q130

2SC2240

/1%

390K

R1F9

/1%

R1F8

+

/100V

R141

R140

3.9K

330

C127

100nF

C128

100nF

R146

D119

BAV21

R1G2

R1G2 220K

220K

R142

D120

6.8V

/1/4W

/3W

3.9K

R143

3.3

Q131

KSA1220A

Q132

KSC2690A

R144

3.3

R145

R147

3.9K

/1/4W

330

/1/4W

R132

R133

2.2K

2.7K

R138

/1%

10K

R1361KR136

/1%

1K

R139

1

/1%

36K

IC101

2 3

TL431

R137

/1%

1.5K

D118

BAV21

D125

2.4V

/1%

R1G1

R1G1 100K

100K

+

C146

C147

10uF

R141

R153

R1G31KR1G3

1K

/3W

3.9K

1.8meg

R148

R148 10K

10K

1

IC102

2 3

TL431

R149

10K

+

C129

/25V

47uF

RV102

500

/25V

R1301KR130

/1W/1%

10

9

R1H2

/1/4W

2

CW

1 3

+

R158

910

R161

4.7

R1591KR159

1K

/1W/1%

1

R1G5

1meg

C149

R1G4

470nF

1meg

R150

R150 10K

10K

C130

47uF

1

IC103

2 3

TL431

R151

R151 10K

10K

1K

R152

/1W/1%

845

L103

100uH

63.4

R160

100

DC SERVO

IC104C

TL084CN

+

8

-

C148

470nF

/3W

/100V

C157

C131

R154

1.2K

R155

4.7

Q152

KSC2690A

Q152 mount to main heatsink

R157

3.3K

100nF

C157

L101

10uH

R15633R156

33

Q133

KSC2690A

R16233R162

33

L102

10uH

47uF

220pF

C132

Q135

KSC2690A

KSA1220A

C138

/1KV

3

+

2

-

/1KV

Q137

411

TL084CN

C135

C135 100nF

100nF

470pF

IC104A

470pF

C134

C136

R16315R163

/1/4W

15

R16418R164

/1/4W

18

R1651R165

1

/1/2W

/1KV

R1681R168

/1/2W

1

R17018R170

/1/4W

18

R17115R171

15

/1/4W

1

All Polyester capacitors are 63V 10% unless noted. All Elec. capacitors are 50V 20% unless noted. All Resistor are 1/6W 5% RJ13 unless noted.

KSC2690A

KSA1220A

D126

1N4148

C151

100nF

C152

100nF

R172

0.22

/5W /5W /5 W /5W

Q139

2SA2121

Q136

R1661R166 /1/2W

1

VCC

R16722R167

22

R1691R169

1

/1/2W

Q138

Q143

2SC5949

R179

/5W

0.22

+15V

-15V

R173

0.22

Q140

2SA2121

R17710R177

10

C139

C139 100nF

100nF

Q144

2SC5949

0.22

C153

N.I.

R180

R176

10K

/2W

0.22

2SA2121

/5W

Q141

R178

10K

1

R174

2SC5949

R190

10K

Q145

0.22

R1N1

100

18V

R181

R175

0.22

Q142

2SA2121

R183

47K

D111

/1/2W

D112

1N4148

/5W

+

C141

4.7uF

Q146

2SC5949

R182

0.22

/5W

C156

R1N2

R189

G1G1

N.I.

R188

R186

22K

R187

2.2K

TP2

TP1

AGND TP

ISC TP Offset TP

C142

33K

R189

22K

Q148

2SC2240

P104A

5PIN2.54-C

1 2 3 4 5

TEST POINT

+

/100V

C158

100nF

/100V

47uF

R184

470

Q147

MPSA92

1K

R1981KR198

R185

47K

R1H1

10K

N.I.

1

N.I.

All Zener diode are 1/2W unless noted.

bce

MPSA42 MPSA92 MPSA06 MPSA56

cbe

2SA970 2SA1015 2SC1815 2SC2240

e 2SA1013 2SC2383

KSA1220A KSC2690A

bce

bc

2SA2121 2SC5949

e

bc

- 9 -

SCHEMATICS DIAGRAM MAIN BOARD PREAMP & INPUT SELECT

RCA201B

MP R IN LEFT

CD IN LEFT

TUNER IN LEFT

DISC/PHO IN LEFT

AUX I N LEFT

TAPE2 IN LEFT

TAPE2 OUT LEFT

TAPE1 IN LEFT

TAPE1 OUT LEFT

MP F IN

FROM DISPLAY

BOARD P702A

5PIN2.54-C

RCA201A

AV6-8.4-13

3

RCA201C

AV6-8.4-13

6

RCA201E

AV6-8.4-13

9

RCA202A

AV6-8.4-13

3

RCA202C

AV6-8.4-13

6

RCA202E

AV6-8.4-13

9

RCA203A

AV6-8.4-13

3

RCA203C

AV6-8.4-13

6

RCA203E

AV6-8.4-13

9

P201B

1 2 3 4 5

PHONO L PHONO R

R201

1

220

4

7

1

4

7

1

4

7

+12VD

220

R221

1meg

R203

220

R223

1meg

R205

220

R225

1meg

R207

220

R227

1meg

R209

220

R229

1meg

R211

220

R231

1meg

R213

220

R233

1meg

R215

220

R235

1meg

R217

220

R237

1meg

R219

220

R239

1meg

R240

1meg

R220

220

C201

100pF

C203

100pF

C205

100pF

C207

100pF

C209

100pF

C211

100pF

C213

100pF

C215

100pF

C217

100pF

/1KV

JRC-27F/012/S

/1KV

JRC-27F/012/S

/1KV

JRC-27F/012/S

/1KV

JRC-27F/012/S

/1KV

JRC-27F/012/S

/1KV

C219

100pF

C220

100pF

RL201A

5

4

RL202A

5

4

RL203A

5

4

RL204A

5

4

RL205A

5

4

RL206A

4

5

JRC-27F/012/S

RL207A

JRC-27F/012/S

3

RL208A

4

5

JRC-27F/012/S

RL210A

3

JRC-27F/012/S

/1KV

RL210B

JRC-27F/012/S

/1KV

6

3

5

4

3

5

4

R241

/1%

105K

7

8

MP R IN RIGHT

CD IN RIGHT

TUNER IN RIGHT

DISC/PHO IN RIGHT

AUX I N RIGHT

TAPE2 IN RIGHT

TAPE2 OUT RIGHT

TAPE1 IN RIGHT

TAPE1 OUT RIGHT

RCA201B

AV6-8.4-13

3

RCA201D

AV6-8.4-13

6

RCA201F

AV6-8.4-13

9

RCA202B

AV6-8.4-13

3

RCA202D

AV6-8.4-13

6

RCA202F

AV6-8.4-13

9

RCA203B

AV6-8.4-13

3

RCA203D

AV6-8.4-13

6

RCA203F

AV6-8.4-13

9

R202

2

220

R222

1meg

R204

5

220

R224

1meg

R206

8

220

R226

1meg

R208

2

220

R228

1meg

R210

5

220

R230

1meg

R212

8

220

R232

1meg

R214

2

220

R234

1meg

R216

5

220

R236

1meg

R218

8

220

R238

1meg

C221

100nF

C202

100pF

C204

100pF

C206

100pF

C208

100pF

C210

100pF

C212

100pF

C214

100pF

C216

100pF

C218

100pF

/1KV

RL201B

7

6

8

JRC-27F/012/S

RL202B

7

6

8

JRC-27F/012/S

RL203B

7

6

8

JRC-27F/012/S

RL204B

7

6

8

JRC-27F/012/S

RL205B

7

6

8

JRC-27F/012/S

8

7

RL206B

JRC-27F/012/S

RL207B

JRC-27F/012/S

6

RL208B

8

7

JRC-27F/012/S

+

MAIN IN LEFT

6

MAIN IN RIGHT

7

8

6

+12VD

C222

100nF

R242

105K

+12VD

C223

106

10uF

Vcc Vss

9

+

L

8

-

2

+

R

3

-

GNDL GNDR

M201

HS OPAMP STEREO

01-37506-10

4

6

RCA204C

AV6-8.4-13

RCA204D

AV6-8.4-13

6

5

JRC-27F/012/S

RL206C

JRC-27F/012/S

1 2

D201

1N4148

TAPE2

/1%

D204

DISC

1N4148

2 1

RL201C

JRC-27F/012/S

4

RL209A

-26V+26V

15

7

4

R247

100K

R248

100K

STEREO POSITION

RL207C

2 1

D205

CD

1N4148

2 1

RL202C

JRC-27F/012/S

C224

+

10uF

BRIDGE

IR IN

IR OUT

S202B

SK-22F03-G7

BRIDGE

RL210C

JRC-27F/012/S

2 1

D202

1N4148

IPOD

VIDEO

1N4148

2 1

RL203C

JRC-27F/012/S

RL209A

5

JRC-27F/012/S

C225

/1KV

220pF

C226

/1KV

220pF

7

8

JRC-27F/012/S

R24368R243 R244 68R244 68

4

5

R200

6

/2W

2.2K

RL209C

JRC-27F/012/S

2 1

D203

1N4148

MUTE

D206

AUX

1N4148

2 1

RL204C

JRC-27F/012/S

3

RCA204A

R245

AV6-8.4-13

100K

R246

RCA204B

100K

AV6-8.4-13

6

RL209B

68

T1OU T R1OUT DGND

TUNER TAPE2 AUX TAPE1 DISC CD IPOD VIDEO R1OUT

TO DISPLAY BOARD P701B

D208

D207

D208

TUNER

1N4148

2 1

RL205C

JRC-27F/012/S

1

3

RV201A

RV201B

3

2

L OUT R OUT

L IN R IN

+26V

-26V

T1OU T

R1OUT

P205B

1 3 5 7 8

9 10 11 12 13 14 15 16 17 18 19 20

CON2X10 MALE

All Polyester capacitors are 63V 5% unless noted. All Elec. capacitors are 50V 20% unless noted. All Resistor are 1/6W 5% RJ13 unless noted.

PREOUT1/2 LEFT

1KA

PREOUT1/2 RIGHT

1 2 3 4 5 6 7 8

9 10 11

1

2

3

4

5

6

7

8

1

2

3

TAPE1

1N4148

2

1

RL208C

JRC-27F/012/S

31

CW

AV6-8.4-13

6 4

2 4 6

D209

7

2

RCA204E

RCA204F

5

CW

8

P202B

11PIN2.54-C

P203A

8PIN2.54-A200B

P204B

3PIN2.54-C

SP A SP B

PROT

SCLED MUTE

+5VD

EXTRA

PHONO EN MM/MC

T1OUT

FROM TONE

TO L/R POWERAMP

FROM RS232

9

BOARD P301A

BOARD P102B

BOARD PS01A

- 10 -

SCHEMATICS DIAGRAM PSU (WITHOUT MDC +8.8V SUPPORT)

HS201

70-004003-1

FOR BR201&TH201 FOR BR202&TH202

C233

/100V

C234

/100V

HS203

70-004003-1

FOR IC201&IC202 FOR IC203&IC204

O2I

ADJ

1

R2E2

+

/1%

R2E1

2.67K

+

/1%

R2E3

2.67K

1

R2E4

ADJ

O3I

1 2 3

Q214

KSC2690

Q213

2SC1815

D215

/1/2W

13V

R2E7

10K

D230

1N4148

Q211

+

C291

2SC1815

10uF

/1%

240

C274

C274 10uF

10uF

C275

C275 10uF

10uF

/1%

240

Q215

2SC1815

R296

10K

+

C251

C251 10uF

10uF

+

C252

C252 10uF

10uF

PHONO EN

R28610R286

/1/4W

10

R2971KR297

HS204

70-004003-1

C281

4.7uF

+

MM/MC

PHONO L PHONO R

R2A21KR2A2

1K

C273

C273 10nF

10nF

C253

100nF

C254

100nF

R299

4.7K

2SA1015

P206B

5 4 3 2 1

5PIN3.96-C

FROM MAIN TRANSFORMER

HS205

70-004003-1

FOR Q206&Q216

+18V

P207B

1 2 3 4 5

5PIN3.96-C

FROM MAIN TRANSFORMER

MUTE

SCLED

BRIDGE

+36V

R263

4.7K

8

R264

N.I.

7

+

C260

/16V

100uF

P208B

1 2 3

3PIN2.54-C

PAD1

TO HEADPHONE BOARD

Solder Pad

PAD2

Solder Pad

PAD3

SPEAKER ASPEAKER B

Solder Pad

PAD4

Solder Pad

PAD5

Solder Pad

PAD6

Solder Pad

+12VD

+

SP B

PROT

SP A

IRF5210

C259

+

1uF

/100V

12

IC205

HS1237

+

C261

330uF

5

4

JRC-27F/036/S

C272

C272 10uF

10uF

4.99K

SP B

SP A

Q216

/16V

RL215A

2SC4793

R288

100nF

Q206

C276

D210

1N4007

R262

220K

Ground Solder Tap

6

5

3 4

C262

C262 220nF

220nF

3

RL215B

7

8

JRC-27F/036/S

Q207

2SC1815

D211

1N4148

1N4007

+

1000uF

C227

D223

C277

C239

270

C265

C267

N.I.

G2G1

R280

6

N.I.

4.7K

/250V

10nF

/250V

10nF

R2A6

/2W

R289

Q203

MPSA92

R250

22K

Q201

2SC1815

Q202

2SA1015

+

C241

+

C242

S202A

SK-22F03-G7

BRIDGE

R282

3.3

/1W

R294

820

D218

1N4148

22K

R251

22K

3

/63V

2200uF

C243

100nF

C244

100nF

/63V

2200uF

2

1

2

3

L202

L202 1uH

1uH

C270

C270 10nF

10nF

JQX-115F/036/1HS1

Q210

2SC1815

10uF

-26V

R295

10K

RL213B

1 2

RL214B

1 2

BR201

BR201 KBU8D

KBU8D

~

+-

~

D222

D222 15V

15V

R2E6

R2E5

2.2K

100

D224

1N4007

D225

1N4007

~

+-

BR203

~

DB104G

R2G10R2G1

1

47K

C280

N.I.

1N4148

0

D228

VCC

S201

6

5

4 1

SK-22F03-G7

SOFT CLIPPING

NORMAL POSITION

VSS

R265

56K

R266

56K

R281

270

/2W

C266

N.I.

C268

N.I.

+36V

+18V

RL215C

1 2

JRC-27F/036/S

+26V

/1%/1%

R291

4.7K

R292

4.7K

C228

+

C278

1000uF

/250V

C240

10nF

C279

C279 10uF

10uF

D212

24V

3

2

D213

24V

JQX-115F/036/1HS1

D219

1N4148

BR202

BR202 KBU8D

KBU8D

/250V

10nF

D226

1N4007

D227

1N4007

24.9K

/1/2W

24.9K

/1/2W

RL211A

3

RL212A

3

RL213A

3

RL214A

3

JQX-115F/036/1HS1

R267

R268

4

RL211B

RL212B

~

+-

~

R249

10K

~

+-

~

BR204

DB104G

/1%

R2691KR269

1K

/1%

+

C263

C263 10uF

10uF

R2701KR270

/1%

1K

STEREO POSITION

R2711KR271

/1%

1K

C264

C264 10uF

10uF

R2721KR272

/1%

1K

/1%

L201

L201 1uH

1uH

C269

C269 10nF

10nF

R293

180

/2W

Q208

2SA1015

1 2

D217

1N4148

1 2

Q209

2SC1815

R2521KR252

1K

+

C229

+

C230

R2531KR253

1K

ADJ

1

NJM317F

4.7K

1

LM337T

ADJ

3.3

/100V

O2I

IC201

R258

R259

IC202

O3I

R283

/100V

/1W

/1%

R273

2.2K

R2541KR254

R274

R274 150K

150K

1K

240

1N4148

+

240

R2A11KR2A1

R255

100

BT151-500R

1 2

R260

/1%

D220

C245

C245 10uF

10uF

C246

C246 10uF

10uF

D221

1N4148

R261

1K

1N4148

+5VD

R2561KR256

1K

3

12

TH201

TH202

3

Q204

MPSA42

+

C247

C247 10uF

10uF

+

C248

C248 10uF

10uF

/1%

R275

22K

R276

82K

R277

150K

FROM RS232 BOARD

+26V

MF-R075/90U-0-99

-26V

MF-R075/90U-0-99

+5VD

MF-R075/90U-0-99

+36V

D216

HEATSINK

FOR Q214

IC206

14

VCC

13

4B

12

4A

11

4Y

10

3B

9

3A

8

3Y

GND

CD74HC86E

C290

100nF

All Polyester capacitors are 63V 5% unles s noted. All Elec. capacitors are 50V 20% unless noted. All Resistor are 1/6W 5% RJ13 unless noted.

C231

100nF

C232

100nF

R257

100

C249

100nF

C250

100nF

+26V

Q205

2SC1815

D214

1N4148

P215B

3PIN2.54-C

F202

F203

F201

270

HS206

1A 1B 1Y

2A 2B 2Y

/100V

R284

1 2 3 4 5 6 7

/2W

R285

6.8K

3

2

R278

R279

100

+

22000uF

+

22000uF

IC203

NJM317F

IC204

LM337T

33K

R2E8

15K

70-004003-1

+15V

-15V

+80V

-80V

+15V

-15V

+80V

-80V

EXTRA

+

C271

47uF

Q212

R298

10K

R2A4

10K

R2A510R2A5

10

HS202

+

10 11 12

/16V

R28710R287

R2A7

330

C255

C256

1 2 3 4 5 6 7 8 9

10

R2A333R2A3

/160V

1000uF

/160V

1000uF

PROTECT L SCN/MUTE SCP ISC BR L

RELAY

PROTECT R SCN/MUTE SCP ISC BR R

P213B

FLEX DIP12

D231

1N4148

33

SCJ351P00XS0B00

P209A

VCC

1 2 3 4

L O/P

5

5PIN3.96-AxxB

P210A

1

VSS

2 3 4

R O/P

5

5PIN3.96-AxxB

C257

C258

P211A

1 2 3 4 5 6 7 8

9 10 11

11PIN2.54-A130B

P212A

1

2

3

4

5

6

7

8

9 10 11

11PIN2.54-A130B

1 2 3 4 5 6 7 8

9 10 11 12

P214B

FLEX DIP12

J201

PY301-030-100-RS

TRIGGER OUT

IR IN

IR OUT

J202A

5 4 1

J202B

25

21

IR IN

+36V

+80V

+26V

+15V

/250V

100nF

/250V

100nF

-15V

-26V

-80V

TO LEFT POWERAMP

TO RIGHT POWERAMP

TO PHONO/ACCESSORY MODULE

BOTH P213B&P214B +5VD Current 0. 1A Max.

BOTH P213B&P214B +/-26V Curr ent 0.1A Max.

- 11-

SCHEMATICS DIAGRAM TONE CONTROL

+26V

P301A

1 2 3 4 5 6 7 8 9 10 11

FROM MAIN BOARD P202B

11PIN2.54-A80B

-26V

C303

100nF

C329

C330

C301

100uF

/1KV/1KV

470pF

C304

100nF

470pF

+

/16V

R301

75K

13

CW

RV307

100

100uF

R302

75K

13

CW

RV308

100

2

C302

+

2

732

/16V

732

R30347R303

R33347R333

R307

/1%

R30447R304

R33447R334

R308

47

/1%

R305

R306

/1%

3.3K

390

/1%

3.3K

390

R310

R309

/1%

RV301A

RV301B

C305

22nF

R313

51K

31

CW

2

RK163121A2CA 10KAX2

C307

100nF

R311

180

C306

22nF

R314

51K

64

CW

5

RK163121A2CA 10KAX2

C308

100nF

R312

180

/5%

R315

N.I.

C309

220nF

2

1 3

CW

RV305

/5%

10K

/1%

RL301A

4

5

JRC-27F/012/S

TONE DEFEAT RELAY

/5%

R316

N.I.

C310

220nF

2

1 3

CW

RV306

/5%

10K

/1%

RL301B

8

7

JRC-27F/012/S

TONE DEFEAT RELAY

/5%

1uF

C313

220pF

3

1uF

C314

220pF

6

2

C311

/5%

5

C312

/5%

/1KV

CW

/1KV

CW

31

64

1.5K

390

1.5K

390

R317

RV302A

R319

R318

RV302B

R320

/1%

RK163121A2CA 10KAX2

/1%

RK163121A2CA 10KAX2

/1%

61

CW

73

CW

45

RV304A

28

RV304B

RV303A

RK16812MGA10(20KBX2)

BALANCE

RK16312A10D 20KMNX2

+26V

RV303B

RK16812MGA10(20KBX2)

BALANCE

RK16312A10D 20KMNX2

3 1

64

CW

VOLUME CONTROL

CW

R322

4.7K

C319

+

/25V

220uF

C321

100nF

R321

4.7K

C315

+

N.I.

2

C317

100nF

01-37506-20

+

C323

10uF

C316

+

N.I.

5

C318

100nF

106

+

-

+

-

M301

15

L

R

C320

220uF

C322

100nF

Vcc Vss

9

8

2

3

GNDL GNDR

HS OPAMP STEREO

7

4

+

/25V

+5.6V

RL301C

JRC-27F/005/S

1 2

R323

2.2K

R324

2.2K

Q302

2SC1815

+26V

R32947R329

47

+

Q301

2SA1015

+

1N4148

+ -

RK16812MGA10(20KBX2)

R325

2.2K

-26V

C324

10uF

TONE

D301

C325

C325 10uF

10uF

C327

4.7uF

RV303C

+

C326

100nF

A

IR IN IR OUT BRIDGE

VOLVOL+

-

R326

2.2K

Q303

2SA1015

2SC1815

P302B

1 2 3 4 5 6 7 8 9

10

10PIN2.54-C

Q304

FROM DISPLAY

BOARD P501A

R327

2.2K

2.2KC327

R328

2.2K

All Polyester capacitors are 63V 5% unless noted. All Elec. capacitors are 50V 20% unless noted. All Resistor are 1/6W 5% RJ13 unless noted.

- 12 -

SCHEMATICS DIAGRAM STANDBY

F401

T1AL/250V

~

/X Type

C401

KY187

S1

1

J402

1 2

C401

1 3

100nF

1

J401

KY250

2

Assembled in the Rear Panel

RF-1003-BB2, 10A 250V, TV-5S1RF-1003-BB2, 10A 250V, TV-5

2 5

TR401

Com Inductor

~

LIVE

W401&W402 ONLY FOR AH VERSION

W403 ONLY FOR C VERSION

NEUTRAL

+-

BR401

BR401 DB105

DB105

+

C402

/400V

10uF

RL401

DH1U5VDC TV-8

Or HF115F 005-1HS3A TV-5

2 1

4

3

+5.6VD

5 6 7 8

C403

10nF

IC401

S S S S

TNY274PN

/X Type

BP/M

EN/UV

W401

D

12

68K

4

C404 100nFC404 100nF

2 1

12

W402

15mm JUMPER

R401

/1W

D401

FR107

D406

1N4148

12

W403

D402

C405

/Y Type

1nF

TR402

1

9

7 6

5

10

EE16

PC401

4

3

PC817A

15mm JUMPER

D402

1N5822

1

2

R402

100

1N4148

D407

L401

10uH

+

220uF

R403

510

R404

150

D404

1N5819

C406

/16V

D409

1N4148

C407

100nF

D405

1N4007

IC402

LM7805CT

1

I

+

/16V

C408

220uF

D403

4.7V

HS401

HEATSINK

FOR IC402

+12V AGND +5.6V THERMAL PROT STBY DGND

TO DISPLAY BOARD

FROM MAIN TRANSFORMER

TO MAIN TRANSFORMER

3

O

G

2

D408

1N4148

P402B

1 2 3 4 5 6

6PIN2.54-C

P403B

1 2

2PIN3.96-C

P404B

1

3

5

7

4PIN7.92-C

C409

100nF

+

C410

220uF

+5.6VD

/10V

U1

AC INLET

1 2

U2

2

1

ACOUTLET

Only for 120V Version

All Polyester capacitors are 63V 5% unless noted. All Elec. capacitors are 50V 20% unless noted. All Resistor are 1/6W 5% RJ13 unless noted. All Zener diode are 1/2W unless noted.

- 13 -

SCHEMATICS DIAGRAM KEYBOARD AND DISPLAY

IC501

N.I.

1

IC504

G

IS1U60L

IC501

SP232EEP

1

C1+

VCC

2

V+

GND

3

C1-

T1OUT

4

C2+

R1IN

5

C2-

R1OUT

6

V-

T1IN

7

T2OUT

T2IN

8

R2IN

R2OUT

+

1

NC

2

/RST

3

WP

4

GND

IC502

CAT1021LI-42

R501

10K

+8V

+5.6VD

D517

1N4148

S

D518

1N4148

+5VD

R505

10K

4 5 1 2 3

R525

100

RST SCL SDA

+5VD

16

DGND

15

T1OUT

14

R1IN

13

R56610R566

12

10

11 10

R56510R565

9

10

D550

1N4007

8

Vcc

7 6 5

IR IN IR OUT BRIDGE

+26V

VOLVOL+

+5.6VD

TONE

R5021KR502

1K

TP STBY

+5VD

IR OUT

R503

10K

R504

10K

R5061KR506

1K

R507

10K

R508

10K

R509

10K

P3.6

G501

1

GND-8

C507

C507 10nF

10nF

RXD TXD

+5.6VD

RST SCL SDA

SCL

SDA

P3.7

P1.3

/EA

IR IN

VOLVOL+ P1.2 P1.3 TP PROT SCL SDA RST RXD TXD

IR OUT

IR IN

PHONO EN

P3.5 P3.6 P3.7

STBY

FLICKER

+5VD

P0.0

+5VD

SCL P0.1 P3.5

TONE

P0.5

R546

4.7K

16

15

3 2 1

IC503

1

P1.0/T2

2

P1.1/T2EX P1.2 P1.3 P1.4 P1.5/MOSI P1.6/MISO P1.7/SCK RST P3.0/RXD P3.1/TXD P3.2/INT0 P3.3/INT1 P3.4/T0 P3.5/T1 P3.6/WR P3.7/RD XTAL 2 XTAL 1 GND

AT89S52-24PU

X501

11.0592MHZ

R5481KR548

1K

IC505

R550

4.7K

Q502

2SC1815

QS QS Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1

VSS

+12V

P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7

ALE/PROG

P2.7/A15 P2.6/A14 P2.5/A13 P2.4/A12 P2.3/A11 P2.2/A10

R549

4.7K

R5471KR547

1K

9 10 11 12 13 14 7 6 5 4

8

3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20

C505

/1KV /1K V

22pF

VDD

OE CLK D STR

74HC4094

R5671KR567

1K

VCC

EA/VPP

PSEN

P2.1/A9 P2.0/A8

C506

22pF

SP A SP B FLICKER PHONO EXTRA RED BLUE AMBER

Q548

2SC1815

+

100uF

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21

2SD667

C508

Q533

/16V

100nF

+5VD P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 /EA

P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0

C509

+5VD

RED

AMBER

BLUE

C514

100nF

R527

10K

Q534

2SC1815

C510

100nF

IC506

1

P2.7 P2.6 P0.7

S502

S501

IT-1102D-1160

SP A

O3I

D502

1N4148

D503

1N4148

R512

10K

Q535

2SC1815

D545

1N4148

R552

4.7K

SCLED

Q522

R520

DTA114ESA

130

C511

C511 100nF

100nF

1 2

R51356R513

56

Q503

R5341KR534

1K

N.I.

D519

D505

D546

1N4148

Q504

2SA1015

R553

4.7K

4.7K R554

R554

4.7K

BRIDGE

SP A

Q523

DTA114ESA

R521

270

C512

100nF

C515

N.I.

P2.3 P2.4 P2.5 P1.3

N.I.

G

2

S502

IT-1102D-1160

SP B MP TUNER

1 2

R51456R514

56

Q505

2SA1015

R5351KR535

1K

D506

BL-BB52V1

D521 N.I.D521 N.I.

D520 N.I.D520 N.I.

D547

1N4148

Q550

2SC1815

C518

+

10uF

R555

4.7K

SP B

Q524

DTA114ESA

R522

1

130

3

4

C513

100nF

+8V

+

C516

N.I.

C501 100nFC501 100nF

C502 100nFC502 100nF

C503

C504

+5VD

P501A

TO TONE BOARD P302B

10PIN2.54-A240B

P502A

6PIN2.54-A60B

TO STANDBY BOARD P402B

IPOD INPUT

100nF

C521

R528

10K

1 2 3 4 5 6 7 8 9 10

1 2 3 4 5 6

V

3

2

4G5

G

J501

PHONE JACK

R5361KR536

1K

D507

Q536

2SC1815

D504

Three LED

+

C517

1000uF

R51556R515

D548

1N4148

C519

10uF

+5VD

/ 10V

IT-1102D-1160

1 2

56

Q506

2SA1015

BL-BB52V1

D522 N.I.D522 N.I.

+

R5371KR537

Q537

2

S503

1K

D508

2SC1815

S504

IT-1102D-1160

CD DISC

1 2

R51656R516

56

Q507

MP R

P0.2

2SA1015

R5381KR538

1K

N.I.

D523

BL-BB52V1

D509

BL-BB5B5201-B

D536

1N4148

Q538

2SC1815

R556

4.7K

1 2

R510

1Kx8

1 2

R511

1Kx8

2SC1815

R51756R517

56

Q508

D538

1N4148

Q549

R570

4.7K

2SA1015

D537

N.I.

3 4 5 6 7 8 9

All Polyester capacitors are 63V 5% unless noted. All Elec. capacitors are 50V 20% unless noted. All Resistor are 1/6W 5% RJ13 unless noted.

R5391KR539

P3.7

1 2

1K

D510

MP F

S505

IT-1102D-1160

R52956R529

56

Q528

2SA1015

D524

BL-BB52V1

D539

1N4148

R557

4.7K

CD

P0.4

P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7

P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7

S506

IT-1102D-1160

1 2

R53056R530

56

Q529

2SA1015

R5401KR540

1K

N.I.

D511

D525

BL-BB52V1

D540

1N4148

Q539

2SC1815

R558

4.7K

TUNER

P2.2

P1.2

+5VD

+12V

+5.6VD +5VD

1 2

D530

BL-BB5B5201-B

D535

1N4148

Q540

2SC1815

DISC

P0.3

R524

N.I.

R523

10K

R5510R551

0

D501

1N4007

S507

IT-1102D-1160

AUX

R53156R531

56

Q530

2SA1015

R5411KR541

1K

N.I.

D512

Q541

R559

4.7K

MUTE

Q525

+8V

2SC1815

DTC114E SA

D531

2SC1815

+

Q543

C520

C520 10uF

10uF

1N4148

S509

S508

IT-1102D-1160

1 2

D532

1N4148

D533

1N4148

N.I.

D544

R571

4.7K

R560

4.7K

PHONO

S509

IT-1102D-1160

TAPE1TAPE2 TONE

1 2

R526

4.7K

4.7K R5421KR542

1N4148

R572

4.7K

Q542

2SC1815

MM/MC

Q551

2SC1815

AUX+5VD TAPE2 DISC TAPE1 MP R CD MP F TUNER R1IN

PROTECT PROT

+12V

S510

IT-1102D-1160

1 2

R53256R532

56

Q531

2SA1015

1K

D513

BL-BB52V1

D526 N.I.D526 N.I.

D541

R561

4.7K

P0.6

AUX

P503A

1 3 5 7 8

9 10 11 12 13 14 15 16 17 18 19 20

CON2X10 M ALE

TO MAIN BOARD P205B

R568

10K

R5431KR543

1K

D527 N.I.D527 N.I.

D542

1N4148

Q544

2SC1815

2 4 6

R569

2.2K

D514

TAPE2

P2.1

IT-1102D-1160

POWER

1 2

R53356R533

56

Q532

2SA1015

BL-BB52V1

R562

4.7K

SP A SP B PROTECT SCLED MUTE +5VD EXTRA PHONO EN MM/MC T1OUT

D534

4.7V

P504A

1 2 3 4 5

5PIN 2.54-760B

S511

Q545

R5441KR544

D528 N.I.D528 N.I.

D543

1N4148

2SC1815

P2.0

TAPE1

+12V

R51856R518

56

Q509

2SA1015

1K

D515

R563

4.7K

BL-BB52V1

Q546

2SC1815

TO MAIN BOARD P201B

P0.5

R5451KR545

D529 N.I.D529 N.I.

D549

1N4148

R564

4.7K

R51956R519

56

Q510

2SA1015

1K

D516

BL-BB52V1

Q547

2SC1815

Opt ional Reglator

- 14 -

SCHEMATICS DIAGRAM 01-37506-10 & 20

R603

220

C615

N.I.

Q613

2SC3324

C601

C601 22pF

22pF

Q601

2SK209

R6051KR605

1K

C603

47pF

C613

1uF

R625

R625 150K

150K

R627

R627 100K

100K

R601

1meg

2SA1312

C617

220pF

220pF R619

R619

430

R621

487

Q603

R6071KR607

1K

C605

1nF

/1%

Q605

2SC3324

R609

1.5K

R6111KR611

1K

R613

2SC3324

18K

R623

8.2K

Q607

/1%

Q609

2SC2983

R61510R615

10

R61710R617

10

Q611

2SA1225

C607

100nF

C609

100nF

C608

100nF

C610

100nF

Q610

2SC2983

Q612

2SA1225

R61610R616

10

Q608

2SC3324

R61810R618

10

C611

See note

Q606

2SC3324

R610

1.5K

R614

18K

C618

220pF

Q604

2SA1312

C606

1nF

R6121KR612

1K

R602

1meg

430

487

R620

R622

R6081KR608

1K

R628

R628 100K

100K

/1%

R626

R626 150K

150K

C614

1uF

R6061KR606

1K

C604

47pF

Q602

2SK209

Q614

2SC3324

C616

N.I.

C602

C602 22pF

22pF

R604

220

+26V

LOUT

LIN-

LIN+

10PIN2.54 RIGHT ANGLE

All Capacitors are SMD0805 5% unless noted. All Resistor are SMD0805 1/10W 5% unless noted.

GNDL

P601A

- 15 -

GNDR

-26V

ROUT

RIN+

RIN-

132

45678910

NOTE:

Line in module C611 is 39pF M201 01-37506-10 Line out module C611 is 47pF M301 01-37506-20

SCHEMATICS DIAGRAM

P701

3PIN2.54-A100B

P702B

TO MAIN BOARD P403B

3PIN2.54-C

J701

1 6

2 1 2 3

R701

100

1 2 3

7

3

8

4

9

5

DB9 FEMALE

- 16 -

SCHEMATICS DIAGRAM

J801

PHONE JACK

P801A

1 2 3

3PIN2.54-A170B

- 17 -

SCHEMATICS DIAGRAM

BP901A

BINDING POST

SPEAKER ASPEAKER B

BP901B

BINDG POST

BP901C

BINDING POST

BP901D

BINDING POST

2

1

4

3

6

5

8

7

P901B

1 2 3 4 5 6

6PIN3.96-C

- 18 -

Nad C-375-BEE Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual