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1

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7

8

LK1001 LINK10NP LK1002 LINK10NP LK1003 LINK10NP
D

LK1007 LINK10NP LK1008 LINK10NP LK1009 LINK10NP LK1010 LINK10NP LK1011 LINK10NP LK1012 LINK10NP

LK1013 LINK10NP LK1014 LINK10NP LK1015 LINK10NP LK1016 LINK10NP LK1017 LINK10NP LK1018 LINK10NP

LK1019 LINK10NP LK1020 LINK10NP LK1021 LINK10NP

LK1025 LINK10NP LK1026 LINK10NP LK1027 LINK10NP LK1028 LINK10NP

LK1031 LINK10NP LK1032 LINK10NP LK1033 LINK10NP LK1034 LINK10NP LK1035 LINK10NP LK1036 LINK10NP

LK1037 LINK10NP LK1038 LINK10NP LK1039 LINK10NP

LK1043 LINK10NP LK1044 LINK10NP LK1045 LINK10NP LK1046 LINK10NP

LK1049 LINK10NP LK1050 LINK10NP LK1051 LINK10NP LK1052 LINK10NP LK1053 LINK10NP LK1054 LINK10NP

LK1055 LINK10NP LK1056 LINK10NP LK1057 LINK10NP LK1058 LINK10NP LK1059 LINK10NP LK1060 LINK10NP LK1062 LINK10NP LK1063 LINK10NP LK1064 LINK10NP LK1065 LINK10NP LK1066 LINK10NP

LK1067 LINK10NP LK1068 LINK10NP LK1069 LINK10NP LK1070 LINK10NP LK1071 LINK10NP LK1072 LINK10NP

LK1073 LINK10NP LK1074 LINK10NP LK1075 LINK10NP LK1076 LINK10NP LK1077 LINK10NP LK1078 LINK10NP

LK1079 LINK10NP LK1080 LINK10NP LK1081 LINK10NP LK1082 LINK10NP LK1083 LINK10NP LK1084 LINK10NP

LK1085 LINK10NP LK1086 LINK10NP LK1087 LINK10NP LK1088 LINK10NP LK1089 LINK10NP LK1090 LINK10NP

LK1091 LINK10NP LK1092 LINK10NP LK1093 LINK10NP LK1094 LINK10NP LK1095 LINK10NP LK1096 LINK10NP

LK1097 LINK10NP LK1098 LINK10NP LK1099 LINK10NP LK1100 LINK10NP LK1101 LINK10NP LK1102 LINK10NP

LK1103 LINK10NP LK1104 LINK10NP LK1105 LINK10NP LK1106 LINK10NP LK1107 LINK10NP LK1108 LINK10NP

LK1109 LINK10NP LK1110 LINK10NP LK1111 LINK10NP LK1112 LINK10NP LK1113 LINK10NP LK1114 LINK10NP

LK1115 LINK10NP LK1116 LINK10NP LK1117 LINK10NP LK1118 LINK10NP LK1119 LINK10NP LK1120 LINK10NP

LK1121 LINK10NP LK1122 LINK10NP

LK1127 LINK10NP LK1128 LINK10NP LK1129 LINK10NP LK1130

LK1133 LINK10NP LK1134 LINK10NP LK1135 LINK10NP LK1136 LINK10NP LK1137 LINK10NP LK1138 LINK10NP EL2

WAF WAF WAF

LK1004 LINK10NP LK1005 LINK10NP LK1006 LINK10NP

D

Update Box

LK1023 LINK10NP LK1024 LINK10NP PD2 TOOLING

LK1029 LINK10NP LK1030 LINK10NP PD3 TOOLING

LK1041 LINK10NP LK1042 LINK10NP

LK1047 LINK10NP LK1048 LINK10NP

LK1125 LINK10NP

LINK10NP LK1131 LINK10NP LK1132 LINK10NP

UPDATE_BOX DD
Drilling Detail DRILL_DETAIL

PD4 TOOLING

PD5 TOOLING C200 PS NOTE : ACLT WINDINGS ON ALPHA 6 TX1 ONLY ATE_PAD GREY1 GREY2 ATE_PAD CAGECLAMP2 + C204
+37V Photo Strip

MAINS INPUT SK201 IEC3 ! 1N0 CD
N N E E L

Y1 Y2 TX WIRE CLIP WIRE CLIP TX

! TP1 PSUP R204 TP2 470R FU R205 470R FU R206 470R FU C206 100N PC POWRE UF5403
G

PHOTO_STRIP P15V
P15V GND Vout O

PD8 TARGET1

PD9 TARGET1

TX1
L

!

SK6
1 2

ACLT1

D203 UF5403

Z201 7815
I Vin

MAINS_N
C

SELECT VOLTAGE BY FITTING FS201 OR FS202 T2

9Vac Grey Grey

TP3 PD10 TOOLING + C210 10U EL PD11 TOOLING

C

MAINS_E

230V
CAGECLAMP3 SK4 3 Orange 2 115V Dark Grey 1 Blue OR1 ATE_PAD SK7
Orange Blue Orange 1 2 3

10M EL 50V D204

C208 4N7 PP

MAINS_L MAINS SWITCH SW201A T1 ! A1007 ! FS201 AS1A25 ! ! A1007 4N7 MAINS FS202 AS2A5_115V GREEN ATE_PAD W10 PD1 TOOLING ! Chassis Earth Point, Use correct screw and washer. ! T3

BLUE1 ATE_PAD OR2 ATE_PAD

DD1
Drilling Detail Issue Box

SW201B C201

CAGECLAMP3A

DD_ISSUE

BLUE2 ATE_PAD SK5
1 SCREEN Green

L815TX

D201 UF5403

+ C205 10M EL 50V

C207 100N PC R201 R202 470R FU

C209 4N7 PP
G

+ C211 10U EL

CAGECLAMP1

FIT ONLY ONE FUSE
ACSENSE

D202 TP4 UF5403

I

GND

470R FU
Vin

Vout

O N15V

TP6

-37V

R203 NSUP 470R FU

Z202 7915

TP5

N15V
B

B

! R207 100R MF MS
MAINS SW SPACER

MAINS_SW_SPACER

Test point for service engineers are shown as See additional service documentation for details.

TP28

A

23425
W12 !
WARNING SAFETY CRITICAL COMPONENT REPLACE WITH IDENTICAL PART

DRAWING TITLE

A

ALPHA 7, 8, 8P & 5.2 AMP
A & R Cambridge Ltd. Pembroke Avenue Denny Industrial Centre Waterbeach Cambridge CB5 9PB
97_1055 UPGRADE MODS

Circuit Diagram
Sheet 1 of 6 Filename
C:\TEMP\L817c111.sch

97-1062

UPGRADE CORRECTION CHANGES
9-Dec-1998

Phil
DRAWN BY CHK BY
6

97-1110

Z801 to Philips only

L817CT1

11

ECO No.

DATE
7

DESCRIPTION OF CHANGE

DRAWING NO. ISSUE 8

1

2

3

4

5

1

2

3

4

5

6

7

8

10

11

12

3

TP7

Z305A NE5532 C702
2 47P CD 1 1

SW302D 4PCO
D 2

C706 10U EL
D 1

LK701 10MM LINK

C701

R701 47K MF

R703 680K MF R702 820R MF C704 4N7 PP

R704 56K MF C705 1N3 PP SW302B 4 LK702 10MM LINK
2 9 8

+

R505 R705 820R MF 4K7 MF SW305B A1202
11 10 12 4 5 6

100P PP

PHINL C703 22U EL

SW301B 2PCO PREOL
7

PHINE

1

TP8

7

8

9

PHONO4G

PHINR
C 2

SW302C 4PCO LK601 10MM LINK C601 100P PP
1

C602 6 10U EL 47P CD
1

+

R601 47K MF R602 820R MF

R603 680K MF C604 4N7 PP

R604 56K MF C605 1N3 PP

C304
1

R605 820R MF LK602 10MM LINK
2 1

C303 1N0 CD

1N0 CD SK303B PHONO4G AVR TAPR R401 1K8 MF SW305A A1202
1

1

TAPEOR SK304A PHONO4G LK803
1 2

SK303A SK302B PHONO4G PHONO4G AUXR

SK304B PHONO4G 10MM LINK 8P ONLY PREOUTR SW301A 2PCO PREOR

C603 22U EL

SW302A 4PCO

TUNR

COR

2 3 3 2

LK8 MINI_LK FITTED BY HAND ON ALPHA 5.2 AMP ONLY

4 5 6

1

2

R405 4K7 MF

B

3

P15V

C301 10N CD

8

A

Z305C NE5532 C302 10N CD
4

Key to component numbers:
0xx 1xx 2xx 3xx 4xx 5xx 6xx 7xx 8xx 9xx 3 Power amp L Power amp R Power supply ICs / Switches Tone / balance L Tone / balance R MM phono L MM phono R Pre amp output L&R Remote control 4

23425
A & R Cambridge Ltd. Pembroke Avenue Denny Industrial Centre Waterbeach Cambridge CB5 9PB

DRAWING TITLE

ALPHA 7, 8, 8P & 5.2 AMP
97_1055 UPGRADE MODS

N15V

Circuit Diagram
Sheet 2 of 6 Filename
C:\TEMP\L817c211.sch

97-1062

Phil
DRAWN BY CHK BY
6

97-1110

9-Dec-1998

ECO No.

DATE
7

1

2

5

F

F

F

F

F

SK302A PHONO4G 1

N

N

N

N

N

N

F

N

F

+ +

SK301A

R502 47K MF

5 6

LK9
FITTED BY HAND ON ALPHA 5.2 AMP ONLY MINI_LK

R501 1K8 MF 8P ONLY LK804 10MM LINK
1 2

N F
EMC

4PCO

PREOUTL

TUNL

COL

AUXL

AVL

TAPL

5

Z305B NE5532
7

PREAMP OUT 8P - PWR IN C606 TUNER SK301B PHONO4G
EMC EMC EMC

CD

AUX

AV

TAPE IN

TAPE OUT 8P - LINK

TAPEOL C305 47P CD

RV301B 20K LOG POT

VOLL

C

SIGE C306 47P CD RV301A 20K LOG POT VOLR

R402 47K MF

B

LK901A
1 2 3 4 5 6 7 8

L809CA

A

UPGRADE CORRECITON MODS Z801 to Philips only

L817CT2

11

DESCRIPTION OF CHANGE

DRAWING NO. ISSUE 8

1

2

3

4 +37V

5

6

7

8

TP11 TEST_POINT R26 R24 2K7 MF
D

HPR

SW99A 2PCO
12

HPE
1

R19 5K6 CF

C14 15N PE

470R FU + C11 100U EL 100V

Q1 IRF540 D1 1N4003F
L

SW99_3 SW99_2 LK7 10MM LINK
1 12 2 3 4 5 6 7

R40 33K MF R31 1K0 CF Q16 SRVOL BC557B TEST_POINT 100U EL Z301A
2 1 3

HPL
4 5 2 3 1 6 7

SK3_6 SK3_7

LK1 10MM LINK

3

R49 330R 1W CF
2

LK311

R15 1K0 CF R23 2K7 MF

R9 470R FU

R21 100R MF Q14 BC557B

R5 100R FU

TP9

R4 100R FU

LHC RHC

R149 330R 1W CF

C9 + R37 47K MF

SK3 HPSKT Q7 R12 470R FU Q3 D2 BC556B Q6 BC556B BC556B Q4 10V 400MW C1 100U EL 100V+ R7 470R FU TP10 TEST_POINT BC546B R10 470R FU D3 10V 400MW R3 2R2 CF BC546B R51 10K MF C4 47N PE R13 1K0 MF R2 4R7 W2 CF R14 1K0 MF R52 10K MF R28 18K MF
Place Q15 by hsk. R

LK311A 1 2 3 4 5 6 7 L825CA

D

SP2_SEND_L SP2_RETN_L SP2_RETN_R SP2_SEND_R OP_L OP_R

L825CA R150 100R W2 CF C2 47N PE PROT_OP_L SPLD SP2_SEND_L SPLS OP_L L1 2U2H LAC SMALL RLY1A RLY G5Z-2A-E SK1A
Top+

R50 100R W2 CF

4

5

C7 NE5532 R33 680K MF R38 680K MF C10 R34 2K7 MF Q13 Q12 C5 33P PS BC547B R30 33K MF R20 15K MF R22 120R MF 4N7 PP C6 47N PE R25 330R MF

SW99B 2PCO

R32 33K MF

R17 8K2 CF

6

SK1B SP2_RETN_L C20 470P CD
TopBotBot+ C

PWRIL
C

+

10U EL SG C8 PWRIL AMPEL 100P PP

BC547B

C17 470P CD

A

SPLE

SK1C CAMCON_G Q15

CAMCON_G

CHASS

C3 100N PC

PD6 TOOLING PD6

C18 1N0 CD

CAMCON_G

R35 R11 470R FU 33K MF

R39 15K MF

TP12 TEST_POINT

Q5 R6 100R FU

Q2 IRF540 R36

VI_CH2

B

Q11 BC547B Q10 R29 BC547B 1K2 CF

+ C15 10U EL BC556B Q9 Q8 BC546B R8 470R FU BC546B R16 2K7 MF R18 2K7 MF R27 470R FU + C13 15N PE C12 100U EL 100V
-37V

B

TP14 D4 10V 400MW R1A 0R22 3W MO R1 0R22 3W MO R42 TP15 TEST_POINT IQ2L 620R MF TEST_POINT IQ1L

10R FU R41 470R FU

R45 18K MF Q17 BC546B R47 4K7 MF

Q19 R46 150R MF + Q18 BC546B BC556B C16 100U EL

RV1 470R PSET 1K0 ON ALPHA 9
P15V

R48 47K MF +

C19 100U EL VI_PROTECT

R53 18K MF

Z301C NE5532

C21 10N CD HS1 C22 10N CD

CL1 E82201 HS2 HS3

CL2 E82201 HS4

TEST_POINT

A

4

23425
E81801 E81801 E81801 E81801

DRAWING TITLE

TP16

TEST_POINT
8

TP13

A

ALPHA 7, 8, 8P & 5.2 AMP
N15V

A & R Cambridge Ltd. Pembroke Avenue Denny Industrial Centre Waterbeach Cambridge CB5 9PB

97_1055

UPGRADE MODS

Circuit Diagram
Sheet 4 of 7 Filename
C:\TEMP\L817c311.sch

97-1062

UPGRADE CORRECTION CHANGES
9-Dec-1998

L817CT3

Phil
DRAWN BY CHK BY
6

97-1110

Z801 to Philips only

L817CT3

11

ECO No.

DATE
7

DESCRIPTION OF CHANGE

DRAWING NO. ISSUE 8

1

2

3

4

5

1

2

3

4

5

6

7

8

R507 12K MF

BASS RV302A 20K LIN POT

R508 12K MF

VOLL

R416 1K8 MF

Z300B 4560D
5 6

C401 7 10U EL +

R406 470R MF

R407 12K MF

BASS RV302B 20K LIN POT

R408 12K MF

D

VOLR

R516 1K8 MF

Z300A 4560D
3 1 2

C502 100N PC C501 + 10U EL R506 Tone controls : 8dB cut and boost

C503 100N PC

R404 6K8 MF Z304B
5 6

C402 100N PC

C403 100N PC TP18

D

TP17

470R MF

R504 6K8 MF C507 100P CD R503 2K4 MF

R511 10K MF

C505 +

7

2

+

R512 18K MF

C407 100P CD

R403 2K4 MF

Tone controls : 8dB cut and boost

R411 10K MF

Z304A
3

C405

1

R412 18K MF RV304B 20K LIN POT BALANCE TONOL R415 6K8 MF

10U EL C504 2N2 PP 4560D R515 6K8 MF RV304A 20K LIN POT BALANCE TONOR R409 C404 2N2 PP 4560D

10U EL

R509 6K8 MF VOLR
6 5

R510 RV303A 20K LIN POT TREBLE 6K8 MF

C508 10P CD

C408 R410 10P CD 6K8 MF 6K8 MF RV303B 20K LIN POT TREBLE C506 100P CD Pot arrow shows max boost

C406 100P CD SW304B 2PCO SW304A 2PCO

Pot arrow shows max boost

TONOR VOLL

4 3 2

TONOL 1
C

PWRIR PWRIL

C

R801 4K7 MF (560R MF in 8P) C801 100P PP

Z302A
3 1 2

R802 100K MF (3k9 MF in 8P)

4560D R804 R803 2K4 MF 5K6 MF

TP19 C803
12 14 15 11 1 5 2 4

R819 8K2 MF 8P ONLY Z801A
1Y0 1Y1 1Y2 1Y3 2Y0 2Y1 2Y2 2Y3 INH S1 S0 1Z 13

R818 8K2 MF 8P ONLY

*** NOTE! *** PCB has two links, LK801, LK802 in place of R818 and R819. THE RESISTORS SHOULD BE FITTED ON THE 8P - NOT THE LINKS. PREOUTR

R811 220R MF

10U EL C804

10U EL R805 4K7 MF (560R MF in 8P)
B

+ +

2Z

3

R812 220R MF R813 22K MF R814 22K MF

PREOUTL

Z302B
5 7 6 R806 100K MF (3k9 MF in 8P)

TP20 R809 100K MF
P15V

R810 100K MF

C802 100P PP

4560D

6 9 10

VEE

7

P74HC4052 R808 5K6 MF R807 2K4 MF
16

PREP

R815 1K2 MF R817 5K6 MF

PREMUTE

GND

P15V

VDD

C805 10N CD

8

8

8

8

TP21

Z801B P74HC4052

D801 4V7 400MW

D803 1N4148

LINK 1 2 3 4 5 6 7 601 602 701 702 803 804

FIT LINKS AS BELOW HK5.2 7 8

8P

B

PREMUTE Z300C 4560D Z302C 4560D Z304C 4560D C212 10N CD C214 10N CD C216 10N CD PREG
4 4 4

C806 10N CD

D802 4V7 400MW PREN

C213 10N CD

C215 10N CD

C217 10N CD

N15V A

R816 1K2 MF

23425
A & R Cambridge Ltd. Pembroke Avenue Denny Industrial Centre Waterbeach Cambridge CB5 9PB

DRAWING TITLE

A

ALPHA 7, 8, 8P & 5.2 AMP
97_1055 UPGRADE MODS N15V

Circuit Diagram
Sheet 4 of 6 Filename
C:\TEMP\L817c411.sch

97-1062

UPGRADE CORRECITON MODS
9-Dec-1998

Phil
DRAWN BY CHK BY
6

97-1110

Z801 to Philips only

L817CT4

11

ECO No.

DATE
7

DESCRIPTION OF CHANGE

DRAWING NO. ISSUE 8

1

2

3

4

5

1

2

3

4

5

6

7

8

+37V

+37V

ACSENSE

R126 R124 2K7 MF R140 33K MF R131 1K0 CF SRVOR C109 + TP22 TEST_POINT R137 47K MF
7 5

R160 10K MF

D

R119 5K6 CF

C114 15N PE

470R FU + C111 100U EL 100V

Q101 IRF540 D101 1N4003F
1

D105 1N4003F D106 1N4003F RLY1C RLY G5Z-2A-E

D

R115 1K0 CF BC557B R123 2K7 MF

R109 470R FU

R121 100R MF

R105 100R FU

ACDET
2

TP25

Q116

R104 100R FU

TEST_POINT R156 470R FU R157 100K MF R155 47K MF R153 +

R158 47K MF

R159 100K MF

+ C122 100U EL

R161 1K0 1W CF LK5 1 & LK6 FIT FOR HK ONLY
2

Q107

R112 470R FU Q103 Q114 BC557B D102 10V 400MW BC556B Q104 C101 100U EL 100V+ R107 470R FU R110 470R FU D103 10V 400MW L101 2U2H LAC SMALL RLY1B RLY G5Z-2A-E R103 TP23 TEST_POINT R151 10K MF Q115 BC546B R152 10K MF 2R2 CF C104 47N PE R113 1K0 MF R102 4R7 W2 CF PD6 R114 1K0 MF C103 100N PC CHASSIS EARTH C102 47N PE VI_PROTECT PROT_OP_L

PROTIN

100U EL Z301B
6

C119 1U0 EL
1

10MM LINK LK3

LK5

NE5532 R133 680K MF R138 680K MF C110 + R134 2K7 MF C106 47N PE

4N7 PP R125 330R MF BC546B Q113 Q112 C105 33P PS R120 15K MF R122 120R MF R117 8K2 CF

2

IN2

V-

C

SK2A
1

0V

OP_R

SPRD
Top+

Q120 2SC2547 C121 +

FIT ALL BUT HK LK4
1

2

PWRIR

10U EL SG C108 PWRIR AMPER 100P PP R130 33K MF

BC547B

BC547B

C117 470P CD

LK2 10MM LINK

TopCAMCON_G 2

A

C118 1N0 CD

SK2C
CHASS -37V +37V

CAMCON_G LED201 SPRE G
1 2 3

R128 18K MF R135 R111 R139 15K MF
B

33K MF R R106 100R FU Q102 IRF540 R136 LED RED/GRN

470R FU TP24 TEST_POINT Q105

Q111 BC547B Q110 R129BC547B 1K2 CF

+ C115 10U EL BC556B Q119 Q108 BC546B R108 470R FU D104 10V 400MW TP26 TEST_POINT R101A 0R22 3W MO TP27 R127 470R FU TEST_POINT IQ2R R101 0R22 3W MO IQ1R R141 470R FU

10R FU

R145 18K MF Q117 BC546B

BC546B R116 2K7 MF R118 2K7 MF

R142 620R MF

RV101 470R PSET 1K0 ON ALPHA 9 C113 15N PE C112 100U EL 100V

R146 150R MF C116 +

-37V

100U EL

A

23425
A & R Cambridge Ltd. Pembroke Avenue Denny Industrial Centre Waterbeach Cambridge CB5 9PB

DRAWING TITLE

A7, 8, 8P & 5.2 AMP
97_1055 UPGRADE MODS

Circuit Diagram
Sheet 5 of 6 Filename
C:\TEMP\L817c511.sch

97-1062

Phil
9-Dec-1998

97-1110

DRAWN BY

CHK BY
6

ECO No.

1

2

3

4

5

+

SP2_SEND_R

C123 100U EL

R165 47K MF

FB V+

33K MF

47K MF

IN1

RC

R132

O

LK6

R154

10MM LINK

C107

10MM LINK
C B A

PWR

47K MF

R162 47K MF

SK3_6 SK3_7

10MM LINK

1 2 8

BC556B

Q106 BC556B

MUTE

SW99_2 SW99_3 1U0 EL R163 PROTE 33K MF PREMUTE R166 2K7 1W CF R167 2K7 1W CF D107 1N4003F SPRS SK2B
Bot+

PROT

Z303 TA7317P

R164 18K MF

LK805A

LK805
1 2 3

L815CA

L815CA

D108 5V6 400MW

VI_CH2 R147 4K7 MF SP2_RETN_R C120 Q118 BC546B 470P CD
Bot-

CAMCON_G

+

UPGRADE CORRECTION CHANGES Z801 to Philips only

L817C5

11

DATE
7

DESCRIPTION OF CHANGE

DRAWING NO. ISSUE

1
D903

2

3

4

MOTSUP 1N4003F TP30 TEST_POINT + C907 1M0 25V C906 10N CD LK901 L809CA RV901A 6A330M

D
W11

VCC1

3
ACLT1 ! R901 1R0 FU R902 C901 100R MF 10N CD +5V TP29

CC1 MC1 REF MC2

VCC2

VOLM1

MD1

2
C905 10N CD

5 4
C904 10N CD TEST_POINT D904 5V6 400MW

2

TP31 VOLMOT TEST_POINT MOT+ 1Y271 MOT-

1 2 3 4 5 6 7 8

D

7

8

GND

1 1

ACLT2

TP32 TEST_POINT RV901B 6A330M

6 9

MOTE

D901 1N4003F

R903 100R MF C903 10N CD R904 1K8 MF D902 5V6 400MW

MD2 CC2
Z902 MOTOR DRIVER BA6109

10

VOLM2

C
C902 1M0 10V +

D905 1N4148 R905 4K7 MF MUTE

RV901C 6A330M

C

-

2
C1000 10N CD VOLMOTA 1Y271

Z901 PIC16C54XT

VOLUME DRIVE

RA0 RA1 RA2 RA3 RTCC MCLR OSC1 OSC2 VSS

REMO LK902A

3 4 1 2 3
L815CA

Case

RB0 RB1 RB2 RB3 RB4 RB5 RB6 RB7 VDD

+

B
RX1 SBX1610-52

+5V

+5v 16 15 5 14

3

+5V O/P GND Case 1 2 1 2 3

X901 LK902 CST4.19MG P5V

L815CA

23425
A
W13 !
WARNING SAFETY CRITICAL COMPONENT REPLACE WITH IDENTICAL PART

DRAWING TITLE

ALPHA 8 AMP RC
A & R Cambridge LTD Pembroke Avenue Denny Industrial Centre Waterbeach Cambridge CB5 9PB
97_1055 UPGRADE MODS

Circuit Diagram
Sheet 6 of 6 Filename
C:\TEMP\L817c611.sch

97-1062

Phil
DRAWN BY CHK BY

97-1110

9-Dec-1998

ECO No. 3

DATE

1

2

+

17 18 1 2

6 7 8 9 10 11 12 13

7 9
RV901D 6A330M

1

B

A L817CT6 11

UPGRADE CORRECTION MODS Z801 to Philips only

DESCRIPTION OF CHANGE 4

DRAWING NO. ISSUE