Nad C-275-BEE Service Manual

	C275BEE	C /A H	SERVICE MANUAL
	STEREO AMPLIFIER

AMPLIFIER STEREO

C/AH C275BEE

CONTENTS

FRONT PANEL/REAR PANEL VIEW 3 SPECIFICATIONS 4 ALIGNMENT PROCEDURE/ALIGNMENT POINTS 5 WIRING DIAGRAM 6 SCHEMATIC DIAGRAM 7-12 PCB LAYOUT 13-18 ELECTRICAL PARTS LIST 19-32 EXPLODED VIEW 33 EXPLODED VIEW PARTS LIST 34 PACKING DIAGRAM 35

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"/%#:#6550/45"/%#:-&%

#3*%(&.0%&*/%*$"50340'5$-*11*/(*/%*$"503

3&"3 1"/&- $0/530-4

*/1654&-&$5*/165

*/165-&7&-$0/530-#3*%(&.0%&40'5$-*11*/(

753*((&3*/ */1654&/4& 0'' "650

753*((&3*/165'64&)0-%&341&",&34" #"$."*/4*/165108&348*5$)

- 3 -

SPECIFICATIONS

FIXED IN, SPEAKER OUT

Continuous average power , stereo,8 and 4 ohms at rated thd ,20-20k

Continuous average power 8 ohms , bridge mode

Rated thd, 20-20k, SMPTE and CCIF IMD, DIM 100

Clipping power ( 1% thd at 1kHz)

IHF dynamic power	8 ohms
IHF dynamic power	4 ohms
IHF dynamic power	2 ohms
IHF dynamic power	8 ohms(Bridge Mode)
IHF dynamic power	4 ohms(Bridge Mode)
Peak output current	1msec, 1 ohm
S/N A wtd re 1 W
S/N A Wtd re 150W

Damping factor ( re 8 ohms, 50 Hz and 1kHz)

Frequency response 20-20k

Frequency response - 3dB

Input impedance ( Fixed In)

Input impedance ( Variable In)

Input sensitivity for rated power

Voltage gain

Channel separation. 1kHz

10kHz

Minimum Input Level for AUTO TRIGGER

Time to power OFF at no signal in AUTO mode

Rated power ( 230 or 120 V AC 50.60 Hz)

Standby power

Idle power

Net weight

Shipping weight

Dimensions

>150W

>330W

<0.009%

>170W

>250W

>410W

>600W

>800W

>1200W

>50A

>102 dB

>123 dB

>180

<+/- 0.1 dB

3Hz – 100 kHz

10kohms+200pF

100kohms+200pF

1.2 V

29dB

>85 dB

>75 dB

1mV at 1KHz

<10 minutes

312 W

<1W

<100W

14.6kg

16.9kg

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 below) 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 below drawing) to get a voltage between the “ISC SENSE TEST POINT” and AGND to be 0mV+/-10mV.

- 5 -

WIRING DIAGRAM

1									2

AC INLET

1	SWITCH
2	POWER

BOARDPOWERAMP	P206BFROM	P101B
		P204AFROM	P103B
LEFT	FROM P208A	P102B

J401	L&N
	PANEL	FROM XFORMER	FROM XFORMER
		P404B	P403B
J402	REAR	FROM P901A
	FROM	P402B
		STANDBY BOARD
		P901A
		TO P402B
		TO P203B

P203B
FROM P902A
P206B
TO LEFT P101B
	LEFT P103B
P204A	TO

FROM PAD1-6

P901B

BINDING POST BOARD

TO L&R P102B

P208A

PAD3 PAD2 PAD5 PAD4

TO P901B

P205A

PAD1	RIGHT P103B
PAD6	TO

FROM XFORMER

P201B

FROM XFORMER

P202B

TO RIGHT P101B

P207B

P103B

MAIN BOARD

P102B

P101B

FROM P205A

FROM P208A	POWERAMP BOARD
P207B	RIGHT
FROM

P902A

DISPLAY BOARD

- 6 -

SCHEMATICS DIAGRAM

VCC

+80V

+15V

		1
		2
	BOARD	3
		4
		5
	MAIN	6
		8
		7
	TO	9
		10
		11

P101B

11PIN2.54-C

-15V

BOARD	1
	2
MAIN	3
	5
	4
TO	P102B
	5PIN2.54-C

C102

-80V

VSS

		R194		Q101
				KSC2690A
		10 /1W						10uF/100V
	C101			2SA970		+	C105			R1A1
		R195		Q102
	100nF /250V	100				C104				24.3K /1%
		D101	D102			33pF /1KV
				Q103		R199				R1A2
				2SC2240		220				7.32K /1%
		1N4148	1N4148
				R196
		C103		100K		R131
		+				N.I.
		10uF				R104				R105
		R128
	CB101	10				1K				100
		-15V				+ C125		+		R106
2	1			R197	D123				C109
										24K
ST-22 90C L TYPE				100K	N.I.	10uF			10uF

+80V

C154

PROTECT

-80V

R107

R191

100nF

Q106

SCN/MUTE

2SC2878

100

SCP

100

C110

ISC

R192

Q104

BIRIDGE

100nF

R103

100

2SC2878

Q111

C111

549 /1%

2SA970

R101

+

475 /1%

10uF

R193

Q105

Q112

100

2SA1015

C112

2SC2240

C155

47pF /1KV

R102

C113

IN

10K /1%

100nF

120pF /1KV

R108

FB

100

GND

OUT

R129

1

D124

R1A5

+

+

R1A9

N.I.

C150

C114

R109

10

100K

10uF

10uF

7.32K /1%

24K

R110

R111

1K

100

+ C115

R1A6

10uF

100K

D103

D104

Q108

R1A8

1N4148 1N4148

2SA970

220

/250V100nF

C116

C119

/100V10uF

R1A3

33pF /1KV

+

+

100

Q107

C118

R1E1

2SC2240

10uF /100V

24.3K /1%

R1A4

10 /1W

Q109

KSA1220A

R134

N.I.

	R112		D127				D128
	39K		1N4148			1N4148				D121
		/100V10uF	R1N7
	C107			Q117	2SC2240					N.I.
+			1K
						R121
							82
	C108+		R113				D105
	10uF		220K	R114
					82	1N4148
						Q118
						2SA1015
		Q113							D106
						R126			1N4148
		2SC2240
						10
			C122
			22pF /1KV
		Q114					Q119
		2SC2240					2SA1013
									R122
			R116						100K
		R115	24K
		15						RV104
						R125
								1	100	3
			C121			200		CW	2
							C124
			22pF /1KV
		R117				430pF /1KV
		15

			R124
			100K
Q115		Q120
2SA970	/1KV22pF	2SC2383
C123
		R127	D122
			N.I.
Q116		10
2SA970
		Q121	D107
			1N4148
		2SC1815

	+ C120		R120
		R118	82	D108
	10uF	220K
				1N4148
			Q122	R123
			2SA970
				82
D129	D130
1N4148 1N4148		R119
R1N8
		39K
1K

R132

2.2K

D109

BAV21

Q129 2SA970

D110

BAV21

Q130

2SC2240

R135	3
2.2K				1
C126
			IC101
100nF	2
			TL431

R133

2.7K

R138

10K /1%

R136

1K /1%

R139

36K /1%

R137

1.5K /1%

R140

3.9K /3W

R142

330 /1/4W

C127 100nF

R143

3.3 /1/4W

Q131

KSA1220A

Q132

KSC2690A

C128 100nF

R144

3.3 /1/4W

R145

330 /1/4W

	R141	R153
	3.9K /3W	1.8meg
		R148
3		10K
	1
2	IC102
	TL431
		R149
		10K
		+
		C129
	47uF /25V
		R150
		10K
3		+
		C130

147uF /25V

	2	IC103
		TL431

R151

10K

C131	/100V100nF	C157			/100V47uF		220pF /1KV			15 /1/4W
				+				C132		R163

			R164
			18 /1/4W
R154	L101
1.2K	10uH
		Q135
R155	R156
		KSC2690A	Q136
			KSC2690A

4.733

Q152	R165	R166
KSC2690A
	1 /1/2W	1/1/2W
Q152 mount to
main heatsink	C134
R157
3.3K	470pF /1KV
	C135
	100nF
Q133	C136
KSC2690A	470pF /1KV

3	RV102
	2 500			R167
				22
1	CW
	R158
	910
			R168	R169
			1 /1/2W	1/1/2W
R161		R162		Q138
4.7		33	Q137	KSA1220A
		L102	KSA1220A
		10uH
			R170
			18 /1/4W

R172	R173	R174	R175	+
				C141	R184
0.22 /5W	0.22 /5W	0.22 /5W	0.22 /5W	4.7uF
					470
Q139	Q140	Q141	Q142		Q147
2SA2121	2SA2121	2SA2121	2SA2121		MPSA92
			R183	R198	1K
			47K
					R185
			D111		47K
		18V /1/2W
	R176			R1H1
				10K
	10K
VCC		R178
		10K
			D112
			1N4148

R177

10 /2W

C139 100nF

R189

22K

R188

33K

R186

22K

Q148 2SC2240

R187

2.2K

P104A

5PIN2.54-C TP2 1

TP1 2

AGND TP 3

ISC TP 4

Offset TP 5

TEST POINT

R152

R130

220pF /1KV

15 /1/4W

C142

100nF/100V

C158

47uF/100V

R146

R147

Q143

Q144

Q145

Q146

+

3.9K /3W

3.9K /3W

1K /1W/1%

1K /1W/1%

R171

2SC5949

2SC5949

2SC5949

2SC5949

C138

845 /1W/1%

R179

R180

R181

R182

0.22 /5W

0.22 /5W

0.22 /5W

0.22 /5W

L103

R1H2

TO MAIN BOARD

P103B

5

4

3

2

1

5PIN3.96-C

D113

VCC 1N5404

O/P

R1E3

-15V 0.05 /3W

	R1E4	R1E5		RV103
			3	10K	1
R1E2	100	100
					CW
1meg				2
Q149		Q150
MPSA92		MPSA92
			R1E8
			100K
					R1E9
					330K
	R1E6	R1E7
	9.1K	560K

R1F2
+15V
10K	D114
R1F1	1N4148
22K

CB102	80CL TYPE	1	100nF	Q151	R1F32SC1815
			C144
	22	2			10K
	-
	ST

IC104B

5

+

TL084CN

7

TP2 6

-

D115

+C143

1N4148

10uF

	100uH	63.4	/1/4W
	R160
			1
	100
			D126
	R1H3		1N4148

1K /1W/1%

ISC COMPARATOR

R1F7

D118

DC SERVO

470K /1%

BAV21

D125

R1G5

C153

R190

+15V

10K

R1F5

+ C145

2.4V

1meg

N.I.

IC104C

C151

C156

270K /1%

10uF

4

D119

TL084CN

+

10

IC104A

100nF

BAV21

R1G3

8

3

+

TL084CN

N.I.

R1F4

1K

-

9

1

G1G1

R1F8

2

-

R1N1

R1N2

10K

+15V

C148

1

390K /1%

11

100

N.I.

R1G1

C152

N.I.

R1F6

470nF

100nF

4.7meg

100K

R1G4

C149

-15V

1

470nF

R1G2

1meg

D116

220K

1N4148

12

D117

+

14

1N4148 IC104D -	13				All Polyester capacitors are 63V 10% unless noted.
TL084CN
	+	C146	+		All Elec. capacitors are 50V 20% unless noted.
	R1F9		C147
	110K /1%	10uF	10uF 6.8V
				D120

All Resistor are 1/6W 5% RJ13 unless noted.

All Zener diode are 1/2W unless noted.

	e b c	e c b	e c b	e c b
	MPSA42	2SA970			b c	e
			2SA1013	KSA1220A
	MPSA92	2SA1015			2SA2121
		2SC1815	2SC2383	KSC2690A
	MPSA06				2SC5949
		2SC2240

MPSA56

- 7 -

SCHEMATICS DIAGRAM

TRANSFORMERMAIN	5PIN3.96-C	C201	10nF/250V	BR201	~		C202	/250V10nF
	P201B				~
	4			KBU8D
	5			-		+
	2
	3
	1
FROM

All Polyester capacitors are 63V unless noted. All Elec. capacitors are 50V unless noted.

All Zener diodes are 1/2W unless noted. All Resistor are 1/6W unless noted.

TRANSFORMERMAIN	5PIN3.96-C	C209	10nF/250V		~	DB104G	C210	/250V10nF
	P202B				~
	2
	1			-		+
	4
	3
	5					BR203
FROM

R2G1	D201
0	1N4007
C280	R210
N.I.	220K

BR202

KBU8D ~

-+

~

R201

10K

~

-+

~BR204

DB104G

	Q203	R207
	MPSA92
		100
	R202
	22K
	R204	3
	1K

2 1

+TH201

				C203		BT151-500R
			10uF /100V
Q201
2SC1815
			+
			C204				TH202
			10uF /100V
						BT151-500R
						1		2
						R206	3
Q202			R205			1K		Q204
2SA1015								MPSA42
			1K
R203
22K
		IC201
	3	NJM317F			2
		I	ADJ	O
			1			R213
						240 /1%
+ C212	C214							+ C218
	100nF
2200uF		R211		/1%				10uF
						+
				4.7K
						10uF
						C216

R208

1K

C205 100nF /100V

C206 100nF /100V

R209

100

		IC203
	NJM317F
3	I	ADJ	O
		1
C220
100nF			2.67K /1%
		R215

HS201					HS202
70-004003-1					70-004003-1		3		POWERAMP
+			FOR BR202&TH202
FOR BR201&TH201								P204A
						VCC	1
							2
C207						L O/P	4
22000uF /100V							5
+						5PIN3.96-AxxBTOLEFT
							3		POWERAMP
C208								P205A
22000uF /100V							1
						VSS	2
						R O/P	4		RIGHT
HS203		HS204					5
						5PIN3.96-AxxB
									TO
70-004003-1	70-004003-1
FOR IC201&IC202	FOR IC203&IC204							+36V
								+80V
								+26V
2								+15V
R217
240 /1%			C228	1000uF/160V	C230	100nF/250V
10uF	C226
+ C224	100nF	+
10uF
+C222

R216

2.67K/1%

10uF

2200uF

100nF

4.7K/1%

10uF

1

+C223

C229

1000uF/160V

C231 100nF/250V

R218

R212

+ C217

C221

+

C227 +

+

10uF

+

100nF

C225

100nF

C213

C215

C219

10uF

ADJ

240 /1%

1

R214

2

I

O 3

-15V

ADJ

240 /1%

IC204

2

I

O

3

LM337T

-26V

C211

+

1uF /50V

+36V

R267

47K

R219

4.7K

1

4

86

	R220	IC205
	N.I.	HS1237
	7		5
	2	3
	+	+	C234
	C232	C233
	100uF /16V	330uF /16V	220nF
	PAD1
A	Solder Pad		R221	R222
	PAD2		56K	56K
SPEAKER
	PAD3
	Solder Pad
	Solder Pad
	PAD4
				C239
B	Solder Pad			N.I.
	PAD5
SPEAKER
	PAD6
	Solder Pad
				C240
				N.I.
	Solder Pad
IN		1	R242
			10K
TRIG		2
		3
+12V		4
	J201	5
	PHONEJACK		R243
			10K

DEFEAT	S204AB	R244
	52
	41	+5V
SENSE		10K
	SK-22F03-G7
	63

P203B

1PROTECT

2SIGNAL

	BOARD	3	12V TRIG IN
		6	SEN DEFEAT
		4	DGND
	DISPLAY	5	MUTE
		7	TRIG ENABLE
		8	SC LED
		9	BG LED
	TO	10	+5V	+5V
		11	+15V
				+15V
		12	AGND

12PIN2.54-C

IC202

LM337T

-80V

P206B

11PIN2.54-C

+26V

+15V

1

POWERAMP

-80V

6

-15V

2

3

4

R229

+5V

+80V

5

D203

2.2K

PROTECT L

7

LEFT

R223

SCN/MUTE

8

VCC

SCP

9

TO

24.9K /1%

ISC

10

24V /1/2W

R225

S202A

BR

11

1K /1%

S201

1

R231

R233

6

+ C235

3

2

33K

P207B

10uF

4.7K

+15V

1

POWERAMP

5

2

R226

2

100K

-80V

SOFT CLIPPING

6

1K /1%

3

Q205

RELAY

3

4

1

SK-22F03-G7

4

SK-22F03-G7

R230

2SA1015

+80V

5

BRIDGE

NORMAL POSITION

R227

STEREO POSITION

22K

1N4148

22K

PROTECT R

9

RIGHT

R232

D205

R234

SCN/MUTE

7

1K /1%

-26V

8

SCP

+ C236

R235

ISC

10

TO

10uF

BRIDGE

11

1K

11PIN2.54-C

D204

R228

P208A

24V /1/2W

1K /1%

S202B

R224

8PIN2.54-A200B

VSS

SK-22F03-G7

1

4

1

R245

POWERAMPL/RTO P102BBOARD

24.9K /1%

4

2

3

5

4

R236

L201

6

5

3.3 /1W

1uH

6

L202

R237

7

1uH

3.3 /1W

S203

8

5

2

BRIDGE

2.2K /3W

+5V

RL201A

D206

STEREO POSITION

4

C238

1N4148

3

C237

6

3

JQX-115F/036/1HS1

10nF

SK-22F03-G7

R259

10nF

Fixed/Variable In

100K

RL202A							R238
3	4						10K
JQX-115F/036/1HS1		R239			R240
+36V
	180 /2W				820
D202			Q206
			2SA1015
									R241
						RL202B
1N4148									4.7K
	1					1
	2		D207	1N4148		2
RL201B					JQX-115F/036/1HS1
JQX-115F/036/1HS1
	C261				R248			R250
	+				10K			22	+5V
100uF /6.3V
	Q207
	2SC1815
					D213				C244
				1N4148		R249			+
						10K			100uF /6.3V
			C241		R247				R251
			100nF		1meg	C242	8		100K
						100nF	+	5	R252
						7
									100K
								6
						IC206B	-
	D214
					D216	TL082CP	4
	1N4148
	D219		D220	1N4148		C243
	1N4148		1N4148			10pF /1KV
					D217
	D215
	1N4148			1N4148					C246

FIXED POSITION

+

3

R257

1

100K

2

IC206A

-

+

D208

R258

C253

D210

1N4148

TL082CP

100K

10uF

C248

C249

C250

C251

D212

D218

1N4148

C252

+

10uF

100nF

10uF

100nF

10pF /1KV

R255

+

1N4148 1N4148

10K

D209

D211

-26V

1N4148

1N4148

C247

01-37506-00

+26V

100nF

100nF

C260

1

10

+ C255

R260

C254

330K

RCA201A

Vss

Vcc

10uF

5

+

10uF

2

C256

R263

2 HOLES

6CW

CW

+

9

1

4

1

7

100nF

220

3

L

8

3

RV201B

RV201A

-

R261

C258

R265

SIGNAL

1KA

1KA

2

N.I.

100pF /1KV

1meg

4

+

INPUT

R

3

N.I.

100pF /1KV

1meg

3

-

R262

C259

R266

GNDR

GNDL

C257

R264

2

5

6

		100nF	220
	M201		RCA201B
	HS OPAMP STEREO		2 HOLES

R253			+					C245			All Polyester capacitors are 63V 10% unless noted.
100K								10uF			All Elec. capacitors are 50V 20% unless noted.
											All Resistor are 1/6W 5% RJ13 unless noted.
					R254						All Zener diode are 1/2W unless noted.

100nF 330K

- 8 -

SCHEMATICS DIAGRAM

BOARD	P901A	+15V
	1
	2	AGND
STANDBY	3	+5.6V
	4	THERMAL PROT
	5	STBY
	6	DGND
TO	6PIN2.54-A200B
+5V
	+		C905
	C902
	1000uF/10V		100nF	Q902

+15V	D909	+5V
	1N4007
		+5V

DTA114ESA

Q901 DTA114ESA

Q903 DTA114ESA

D901

4 BLUE

2

3 AMBER

1 RED

BL-BUBJFB52C4V-1

R903	R902	R904		R901
				10K
130	130	130
			2 1	PUSHBUTTON	ON/OFF
		S901			C901
					1uF

+

	D910
	1N4148	D912	D913	D914
		1N4148	1N4148	1N4148
R906	D902
+15V
750	SC LED
R907	D903
+5V
150	BG LED
R909	D904	Trigger Enable
N.I.	N.I.
R911	D905	Signal Enable	Q906
N.I.			DTC114ESA
	N.I.
R912	D906	Q907
	Switch Enable
N.I.		DTC114ESA
	N.I.
C904
	Q908
100nF	DTC114ESA

R917

		1K		Q909
			2SD667
	R915		R916
	4.7K		1K
	R914		Q904
	1K		2SC1815
		IC901
	1	P50	P51	14
	2			13
		P67	P52
	3			12
		P66	P53
	4			11
		Vdd	Vss
	5			10
		P65/OSCI	P60/INT
	6			9
		P64/OSCO	P61
	7			8
		P63/RST P62/TCC
		EM78P153SP/S/J
		Q910
		2SA1015	+5V
	R918		R919
	100K
		R905	33K
		10K
		D911
		3.3V

Q905

DTC114ESA

	+5V
IC902A	14					G901
CD4011BCN
		1			1
3
		2	R910
				C903		GND-8
			100
	7			10nF
D907
4.7V			R908			P902A
			10K	PROTECT	1
				SIGNAL	2
				TRIGGER	3	BOARD
				DGND	4
				MUTE	5
				SEN DEFEAT	6	MAIN
				SC LED	8
				TRIG ENABLE	7
				BG LED	9	TO
			+5V	+5V	10
				+15V	11
			+15V
				AGND	12
		R913
+5V
		10K			12PIN2.54-A200B
	14
4		5
		6
IC902B
CD4011BCN	7		D908
			4.7V
	+5V		+5V
	14		14
8		10	12	11
9			13
	7	IC902C	7	IC902D
				CD4011BCN
		CD4011BCN

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.

- 9 -

SCHEMATICS DIAGRAM

C401

100nF/X Type

1 3

2 5

TR401 Com Inductor

1 2	1 2
J402	J401
KY187	KY250

S1

1 2

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

Assembled in the Rear Panel

C405

D402

D404

F401

IC402

1nF /Y Type

1N5822

1N5819

D409

T1AL/250V

LM7805CT

C403

R401

1N4148

1

I

O

3

+5.6VD

TR402

~

10nF /X Type

68K /1W

+

G

+

1

9

C406

C408

220uF/16V

2

-

+

7

220uF/16V

C407

+

C409

C410

6

100nF

D408

100nF

220uF/10V

~ BR401

5

10

1N4148

D401

DB105

FR107

EE16

+

IC401

R402

D403

5

4

C402

S

D

100

10uF/400V

6

4.7V

S

C404

100nF

7

2

PC401

S

BP/M

R403

HS401

8

1

1

S

EN/UV

4

HEATSINK

510

TNY274PN

3

2

		PC817A		FOR IC402
		D407	D405
		1N4148	1N4007
		R404
		150		P402B
		L401	+12V
		10uH		1
			AGND	2
	+5.6VD		+5.6V	3
			THERMAL PROT 4
			STBY	5
			DGND	6
	RL401			6PIN2.54-C
	DH1U5VDC TV-8	D406		TO DISPLAY BOARD
	Or HF115F 005-1HS3A TV-5			P403B
	2	1N4148		1
LIVE
	1			2
	4

3

W401&W402 ONLY FOR AH VERSION W403 ONLY FOR C VERSION

NEUTRAL

401W	JUMPER	402W	JUMPER	403W	JUMPER
1		1		1
2	15mm	2	15mm	2	15mm

2PIN3.96-C

FROM MAIN TRANSFORMER

P404B 1

3

5

7

4PIN7.92-C

TO MAIN TRANSFORMER

U2

AC INLET

1						2

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.

- 10 -

SCHEMATICS DIAGRAM (01-37506-00)

R605

R606

1K

1K

Q603

Q604

2SA1312

2SA1312

Q605

C607

C608

Q606

R626

R625

2SC3324

100nF

100nF

2SC3324

150K

150K

R607

R608

C615

C603

1K

1K

C604

C616

Q609

Q610

N.I.

47pF

2SC2983

2SC2983

47pF

N.I.

Q613

C605

R609

R615

R616

R610

C606

Q614

2SC3324

1nF

1.5K

1.5K

1nF

2SC3324

10

10

Q607

Q608

2SC3324

2SC3324

R627

R617

R618

R628

C614

100K

10

10

R612

100K

Q601

C613

R611

1uF

Q602

2SK209

1uF

1K

C609

C610

1K

2SK209

C602

C601

Q611

100nF

100nF

Q612

22pF

2SA1225

2SA1225

22pF

R613

R614

C617

18K

18K

C618

220pF

220pF

R620

R619

430/1%

430 /1%

R603

R621

R622

R604

220

560/1%

R623

C611

560/1%

220

R601

N.I.

N.I.

R602

1meg

1meg

+26V

-26V

LIN+ LIN-

LOUT GNDL GNDR ROUT RIN-

RIN+

10 9 8 7 6 5 4 3 2 1

P601A

10PIN2.54 RIGHT ANGLE

All Capacitors are SMD0805 5% unless noted.

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

- 11 -