Power Supply, L942C2 | Arcam A65, A75, P75 Plus

MAINS INPUT
SK300
IEC3
N	E	L							TX300
N	E	L							TX300
N	E	L							L836TX
									L836TX
C300									9Vac
3N3 MAINS					SELECT VOLTAGE				9Vac
3N3 MAINS					SELECT VOLTAGE
					BY FITTING FS201
		C301			OR FS202
MAINS_N300		3N3 MAINS			T300				230V
					T300

MAINS_E300
					FS301		3
				FS300	AS2A5_115V	T301	3	Orange
MAINS_L300				FS300	AS2A5_115V	T301	2	Orange	115V
		MAINS SWITCH		AS1A25			1	Dark Grey
		MAINS SWITCH					1	Blue
		SW300A	SW300B					SK301
								SK301
A1007				C302
				3N3 MAINS			CAGECLAMP3
		A1007					CAGECLAMP3
		A1007					BLUE300
							BLUE300
		CS1					SK302
		220N X2 CLASS			GREEN300		1	Green	SCREEN
						CAGECLAMP1

PD300
TOOLING	Chassis Earth Point,	FIT ONLY ONE FUSE
TOOLING	Use correct screw and washer.	FIT ONLY ONE FUSE
	Use correct screw and washer.

EARTH LEAD

8M101

EARTH LEAD

ACLT1

SK303

Grey	1
Grey	2
Grey

CAGECLAMP20V_DIG

+ 1

	3	~
BLUE301	OR300
		-
SK304		4
Orange	1
	2
Blue	3
Orange
CAGECLAMP3A
	OR301
ACSENSE

			R311
C304	D300		10R FU	Q300	Q304
		R301
				BC546B	BC546B

+	1N4003F	4K7 MF					+38V_R		+38V_L
47U EL 100V	1N4003F	+ 100UC310 EL 100V			+ C312		+38V_R		+38V_L
47U EL 100V	D301	+ 100UC310 EL 100V	D304		+ C312	C317		C319
	1N4003F		D304			C317		C319	+37V_L
	1N4003F	ZENER 500MW 39V				100N CD	+38V_R	100N CD	+37V_L
		ZENER 500MW 39V			220U EL 50V		+38V_R	100N CD
	0V_PSU	+ 100UC311 EL 100V				0V_HF		C320
	D302	+ 100UC311 EL 100V	D305		+ C313	C318	-37V_R	C320		-37V_L
C305	1N4003F		D305			100N CD		100N CD
C305	1N4003F	ZENER 500MW 39V				100N CD
47U EL 100V	D303	ZENER 500MW 39V			220U EL 50V		Q302 -38V_R			-38V_L
47U EL 100V		R302			220U EL 50V				Q305
+		R302							Q305
							BC556B		BC556B
		4K7 MF		R312					BC556B
+37V	1N4003F	4K7 MF
+37V	1N4003F
	PSUP300			10R FU
	PSUP300

	BR300
		C306			Z300
	+	100N PE 100V			7805		+15V
~	2				I Vin	Vout O	+300
	C308					GND
	10M EL 50V	0V_HF		0V_LS_L	+ C106	GND
	10M EL 50V			0V_LS_L
							+ C315
	BRGBU8D				1U0 EL	G	+ C315
	BRGBU8D						100U EL
		0V_SIG		SP300		D306	100U EL
		0V_SIG		SP300
				STAR_10	0V_LS_R
				STAR_10	0V_LS_R	10V 400MW
						10V 400MW
	C309	0V_DIG		0V_HF	0V_SIG
	10M EL 50V		0V_PSU
	+	C307	0V_PSU
		100N PE 100V			+ C105	D307	+ C316
					+ C105	10V 400MW	+ C316
					1U0 EL		100U EL
				NSUP300		G

-37V		GND
I	Vin	Vout	O	-300
	Z301			-15V
	7905

R300

100R MF

DO NOT USE THE FOLLOWING NUMBERS AS LINKS - THE DESIGNATORS ARE ALREADY USED ON OTHER PARTS OF THIS CCT!

LK100, LK101, LK102, LK103, LK104, LK168, LK170, LK171, LK172, LK173, LK174, LK175, LK176, LK177

0V_HF

LK126

LINK17.5NP

LK1

LK6

LK11

LK16

LK21

LK26

LK31

LK36

LK41

LK46

LK51

LK56

LK61

LK66

LK71

LK76

LK81

LK86

LK91

LK96

LK106

LK111

LK116

LK121

LK131

LK136

LK141

LK151

LK156

LK161

LK166

LK181

LK186

LK191

LK196

LINK10NP

LK2

LK7

LK12

LK17

LK22

LK27

LK32

LK37

LK42

LK47

LK52

LK57

LK62

LK67

LK72

LK77

LK82

LK87

LK92

LK97

LK107

LK112

LK117

LK122

LK127

LK132

LK137

LK142

LK152

LK157

LK162

LK167

LK182

LK187

LK192

LK197

LINK10NP

LINK15NP

LINK10NP

LK3

LK8

LK13

LK18

LK23

LK28

LK33

LK38

LK43

LK48

LK53

LK58

LK63

LK68

LK73

LK78

LK83

LK88

LK93

LK98

LK108

LK113

LK118

LK123

LK128

LK133

LK138

LK143

LK148

LK153

LK158

LK163

LK178

LK183

LK188

LK193

LK198

LINK10NP

LK08NP

LINK10NP

LK4

LK9

LK14

LK19

LK24

LK29

LK34

LK39

LK44

LK49

LK54

LK59

LK64

LK69

LK74

LK79

LK84

LK89

LK94

LK99

LK109

LK114

LK119

LK124

LK129

LK134

LK139

LK149

LK154

LK159

LK164

LK179

LK189

LK194

LK199

LINK10NP

LK5

LK10

LK15

LK20

LK25

LK30

LK35

LK40

LK45

LK50

LK55

LK60

LK65

LK70

LK75

LK80

LK85

LK90

LK95

LK105

LK110

LK115

LK120

LK130

LK135

LK140

LK145

LK150

LK155

LK160

LK165

LK180

LK185

LK190

LK195

LK258

LINK10NP

LK125

LINK10NP

LK201

LK202

LK203

LK204

LK205

LK206

LK207

LK208

LK209

LK210

LK211

LK277

LK278

LK279

LK280

LK281

LK252

LK253

LK255

LK300

LK301

LK303

LK304

LINK20NP

LK265

LINK10NP

LINK15NP

LK212

LK213

LK214

LK215

LK216

LK217

LK218

LK219

LK230

LK231

LK232

LK233

LK234

LK235

LK236

LK237

LK238

LK240

LK241

LK242

LK243

LK244

LK245

LK256

LK257

LINK15NP

LK220

LK221

LK222

LK223

LK224

LK225

LK226

LK227

LK228

LK229

LK246

LK247

LK248

LK249

LK250

LK251

LK254

LINK20NP

LK267

LK270

PD311

PD312

EL300

LINK17.5NP

PD301

PD302

PD304

PD305

PD303

TARGET1

PD306

PD307

PD308

PD309

PD310

Y300

Y301

Spare Fuse Clip

LK268

LK271

TOOLING

TOOLING TX WIRE CLIP TX WIRE CLIP

LINK17.5NP

LINK15NP

FUSE CLIP

LK269

LK272

C303

LINK15NP

LINK17.5NP

1N0

_DIG

PCB1

PCB

L940PB_A

DD300

PCB MATERIAL CEM1, 2 OZ Cu

CEM1_20Z

PS300

Photo Strip

PHOTO_STRIP

DD302

A1 Horizontal

Paper Marker

DD_A1H

WARNING SAFETY CRITICAL COMPONENT

REPLACE WITH IDENTICAL PART

USE 'exlude A65' FILTER FOR BOM

DRAWING TITLE
A65 PLUS AMP
A65 PLUS AMP

	Filename: L942C2_1.0.SCH

	Notes:
	POWER SUPPLY
A & R Cambridge Ltd.	POWER SUPPLY		01_E020	TGP	12/12/01	PRODUCTION RELEASE			1.0
Pembroke Avenue
Pembroke Avenue			ECO No.	INITIALS	DATE	DESCRIPTION OF CHANGE			ISSUE
Waterbeach			ECO No.	INITIALS	DATE	DESCRIPTION OF CHANGE			ISSUE
Cambridge CB5 9PB	Contact Engineer: Travis Pierce	Contact Tel: (01223) 203 200		Printed:	11-Dec-2001	Sheet 2 of 7	DRAWING NO.	L942C2

Arcam A65, A75, P75 Plus service manual Power Supply, L942C2

Models: P75 Plus A75 A65

POWER SUPPLY

L942C2