Page 1
FD100 FD101
Downloaded from http://receiverfaq.ru/
LS100
G P PRECISION
Left Outputs
ITEM100 1 Blank PCB Diva A80 AmpL943PB
ITEM101 1 Tape D/Sided 12MM X 70MM DS Polyester 4965F205 Placed between VFD and PCB; NF ON P80
ITEM102 1 Earth Lead Assy 75MM8M101
ITEM103 2 Pad Damping 15x6x3MM SorbothaneE802AP
ITEM104 4 13/16 inch O-RingF232
Soldered to SKT200
Placed on output relays
Rubber O-Rings fitted over main power supply caps
ANNOTATION
FIX100
Dia 3.5mm
Power Supplies
L943C2_5.1.SCH
A80 PreAmp
L943C3_5.1.SCH
PWR_ON
FIX101
Dia 3.5mm
1
P101
0V(D)
+4.8V(D)
0V_LS_L
0V_HF_L
0V_FB_L
0V(SIG_2)
0V_FB_R
0V_HF_R
0V_LS_R
0V(PSU)
-38V_VFD
0V_PREOUT
*PRE_MUTE
0V_D_PRE
TAPE_0
TAPE_1
TAPE_2
VOL_SCLK
0V_SER
VOL_SDATA
VOL_*CS
LISTEN_0
LISTEN_1
LISTEN_2
+15V(A)
+5V(A)
+4.8V_D_PRE
*PRE_RLY
0V(SIG)
0V(SIG_2)
-15V(A)
PRE_OUT_L
PRE_OUT_R
C101
100N
50V
0805
9VRMS
+45V_R
+45V_L
0V(D)
0V(SIG)
-45V_L
-45V_R
FIL_1
FIL_2
+15V(A)
+5V(A)
-15V(A)
FIX102
Dia 3.5mm
FIX103
Dia 3.5mm
*PRE_MUTE
0V(D)
TAPE_0
TAPE_1
TAPE_2
VOL_SCLK
0V(SER)
VOL_SDATA
VOL_*CS
LISTEN_0
LISTEN_1
LISTEN_2
FIX104
Dia 3.2mm
9VRMS
+4.8V(D)
+45V_R
+45V_L
0V(D)
0V_LS_L
0V_HF_L
0V_FB_L
0V(SIG)
0V(SIG_2)
0V_FB_R
0V_HF_R
0V_LS_R
-45V_L
-45V_R
-38V_VFD
FIL_1
FIL_2
+15V(A)
+5V(A)
-15V(A)
TAPE_0
TAPE_1
TAPE_2
PreAmp Controls
VOL_SCLK
0V(SER)
VOL_SDATA
LISTEN_0
LISTEN_1
LISTEN_2
0V(D)
*PRE_MUTE
VOL_*CS
+15V(A)
+5V(A)
0V(SIG)
0V(SIG_2)
-15V(A)
+45V_L
0V_FB_L
-45V_L
0V_HF_L
0V_LS_L
Power Supplies
+45V_R
0V_FB_R
-45V_R
0V_HF_R
0V_LS_R
+45V_L
+4.8V(D)
0V(D)
+45V_L
+45V_R
+4.8V(D)
0V(D)
0V(SIG)
-45V_L
-38V_VFD
FIL_1
FIL_2
9VRMS
+45V_L
0V(D)
Power Amp Left
L943C4_5.1.SCH
PRE_OUT_L
0V_FB_L
Power Amp Right
L943C5_5.1.SCH
PRE_OUT_R
0V_FB_R
A80/P80 Protection & Micros
L943C6_5.1.SCH
OUTPUT_L
OUTPUT_R
+45V_L
+45V_R
+4.8V(D)
0V(D)
0V(SIG)
-45V_L
-38V_VFD
FIL_1
FIL_2
TAPE_0
TAPE_1
TAPE_2
VOL_SCLK
0V_SER
VOL_SDATA
LISTEN_0
LISTEN_1
LISTEN_2
+4.8V_D_PRE
0V_D_PRE
*PRE_MUTE
VOL_*CS
VIPROT_L
VIPROT_R
9VRMS
REMOTE_P
REMOTE_N
TRIG_IN
VIPROT_L
OUTPUT_L
0V_LS_L
0V_HF_L
VIPROT_R
OUTPUT_R
0V_LS_R
0V_HF_R
0.38Hz_CLK
SPKR2_ON
SPKR1_ON
PWR_ON
+45V_L
-45V_L
+45V_R
-45V_R
*RESET
R100
5R6
2W
CF
L100
2U2
R101
5R6
2W
CF
L101
2U2
RLY100A
Omron
G5Z-2AE
RLY101A
Omron
G5Z-2AE
RLY100B
Omron
G5Z-2AE
RLY101B
Omron
G5Z-2AE
A80 Trigger, RC5 & P80 Sig Detect
L943C7_5.1.SCH
+45V_L
+4.8V(D)
0V(D)
0V_CHASS
0.38Hz_CLK
*RESET
PRE_OUT_L
0V_PREOUT
PRE_OUT_R
REMOTE_P
REMOTE_N
TRIG_IN
LS101
G P PRECISION
Right Outputs
R105
330R
1W
CF
GENERAL NOTES
This is the Master Schematic for A80 (L943AY) and P80 (L944AY) PCB
assemblies. Any changes to the schematics in this document must be
reflected in the relevant child documents.
When generating BOMs for L943AY or L944AY, ensure that the relevant
components are fitted or not fitted (those with "NF" or "FIT" in the nearby text).
These schematics follow a simple heirarchy scheme. Sheet symbols on the top
sheet represent a child or sub-sheet. Net labels on sub-sheets are local or
specific to that sheet. Ports on the sub-sheets connect to sheet entries on
the parent sheet, where they are connected together.
Primary power nets are denoted by type in parenthesis, e.g. 0V(D).
Secondary nets are denoted by underscores, e.g. 0V_LS_L.
To perform an electrical rule check or synchronise with the PCB, set Net
Identifier Scope to Sheet Symbols/Port Connections.
R104
330R
1W
CF
Q121
Q125
Q106
Q111
CON100
1
2
3
4
5
AMP
CT
CON101
AMP
CT
HEADPHONE OUTPUT & MUTE
1
Q113
2
Q114
3
Q115Q118
4
Q116
5
Q117
R107
100R
1W
CF
(NF ON P80)
R106
100R
1W
CF
RLY102A
NEC
EB2-5NU
RLY102B
NEC
EB2-5NU
RLY102C
NEC
EB2-5NU
NF
R102 0R0
0W125 0805
NF
R103 0R0
0W125 0805
D102
BAS16
SOT-323
NCL
NCR
CL
CR
SKT100
2
3
1
HOSIDEN
HLJ
OUTPUT MUTING
SPKR2_ON
SPKR1_ON
R108 220R
0W25 MF
R109 220R
0W25 MF
D100
1N4003
DO-41
RLY100C
Omron
G5Z-2AE
TR100
BD179
TO-126
R110
220R
0W25
MF
R114
0R0
0W25
MF
RLY101C
Omron
G5Z-2AE
R112
2K2
0W125
0805
TR101
BD179
TO-126
R111
220R
0W25
MF
R113
2K2
0W125
0805
D101
1N4003
DO-41
L
R
A80 & P80 Display Circuitry
L943C8_5.1.SCH
Flexfoil
DRAWING TITLE
23425
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A80/P80 - T op Lev el Sheet
Filename:
L943C1_5.1.SCH
Notes:
A80
Contact Engineer:
03_E264 MJT 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 5.0
03_E147 MJT 23 May 03 None to this sheet. PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP NO CHANGE TO THIS SHEET 2.117 APR 03
INITIALS
ECO No. DESCRIPTION OF CHANG E
Contact Tel: (01223) 203 200Mark Tweedale
Printed:
Changed P80 s/w & fitted IC socket for IC603 (P80 only).
Display snapoff fixing holes reduced to 3.2mm
DATE
9-Sep-2003
18Sheet of
DRAWING NO.
L943C1
ISSUE
Page 2
SH200
EMC Shield
NF
SKT200
N
E
L
BULGIN
PX0580
1
This EMC can should now not appear
on any BoM as there is a safety
issue regarding the can shorting to a
live mains track on the top layer.
Consider removing the holes for the
can or perhaps move mains tracks
onto bottom layer for next PCB
revision.
C200
3N3
250V
CER
C201
3N3
250V
CER
EARTH
NEUTRAL
LIVE
C209
115V 230V
220N
275V
PP X2
2A22B
1A11B
SW200
18-000-0019
FS201
T2.5A
S506
FHLDR201
20mm HLDR
FS200
T2.5A
S506
FHLDR200
20mm HLDR
MAINS WIRING AND AUXILIARY SUPPLY
TX200
1 5
9V
9V
PCB Mount Frame
7A9301
CON201
WAGO
256
3
BLUE
2
DK GREY
1
ORANGE
1
GREEN
CON202
WAGO
256
CON203
1
GREEN
WAGO
256
6
FS202
T500mA
R452
8
FIX200
Dia 3.2mm
RLY200A
Takamisawa
F1CA005V
C202
3N3
250V
CER
RLY200B
Takamisawa
F1CA005V
C203
3N3
250V
CER
1
115V
2
3 7
115V
4
C221
100N
100V
MKS2
L916TX
(CHASSIS-MOUNTED)
BLUE
BLUE
115V ac
BLACK
ORANGE
115V ac
GREEN
GREEN/YELLOW
Interwinding Screen
WHITE
BLACK
GREY
WHITE
3.2Vac
WHITE
ORANGE
16Vac
BLUE
16Vac
ORANGE
DBR203
3BDF01M
C225
1000UF
25V
YK
HS201A
SW50-2
8.8C/W
CON204
WAGO
256
REG201
LM317T
TO-220
BLUE
LT GREY
DK GREY
GREY
D214
BAS16
SOT-323
ADJ
R217
680R
0W125
0805
1
2
3
4
ITEM203 1 Clip For SW Profile HeatsinkF006
+4.8V(D)
R218
220R
0W25
MF
R219
22R
0W125
0805
0V(D)
0V(D)
C205
470N
100V
MKS2
PCB Traces to route as shown h ere
C206
470N
100V
MKS2
C226
1000UF
10V
YK
9VRMS
+4.8V(D)
POWER AMP SUPPLIES
SP200
DBR200
GBU8D
DBR201
GBU8D
SP201
C228
3,300UF
63V
USR
C230
3,300UF
63V
USR
PWR_ON
C229
3,300UF
63V
USR
C231
3,300UF
63V
USR
R216
2K2
0W125
0805
P202
+4.8V(D)
0V(D)
RLY200C
Takamisawa
F1CA005V
TR202
FMMT497
SOT-23
R221 0R0
0W125 0805
SP202
D215
BAS16
SOT-323
0V(SIG)
0V(D)
0V_FB_R
0V_LS_L
0V_LS_R
0V_HF_R
0V_HF_L
0V_FB_L
+45V_R
+45V_L
0V(SIG)
0V(D)
0V_FB_R
0V_LS_L
0V_LS_R
0V_HF_R
0V_HF_L
0V(PSU)
0V_FB_L
-45V_L
-45V_R
ANNOTATION
CON200
ORANGE
BLUE
ORANGE
WAGO 256
ANALOGUE OP-AMP SUPPLIES
FS203
T2A
R452
C204
470N
100V
FS204
T2A
R452
MKS2
1
2
3
C211
100N
50V
0805
C210
100N
50V
0805
D200
1N4003
DO-41
D202
1N4003
DO-41
(NF ON P80)
D201
1N4003
DO-41
D203
1N4003
DO-41
R204
0R0
0W125
0805
R205
0R0
0W125
0805
C215
1000UF
35V
YK
C216
1000UF
35V
YK
C214
100N
50V
0805
C213
100N
50V
0805
HS200A
6043PB
23C/W
HS202A
6043PB
23C/W
D210
BAS16
SOT-323
REG200
LM317T
ADJ
TO-220
C217
100UF
25V
YK
C218
100UF
25V
YK
REG202
LM337T
ADJ
TO-220
D211
BAS16
SOT-323
P200
P201
R207
100R
0W125
0805
R208
100R
0W125
0805
R213
2K2
0W125
0805
R214
2K2
0W125
0805
R209
100R
0W125
0805
R210
100R
0W125
0805
D212
BAS16
SOT-323
D213
BAS16
SOT-323
C207
22UF
20V
OSCON
C208
22UF
20V
OSCON
R206
10R
0W125
0805
C224
1000UF
25V
YK
R215
2K2
0W125
0805
DZ200
BZX84C
5V6
SOT-23
TR200
BC849B
SOT-23
SP203
C219
100UF
25V
YK
0V(SIG_2)
+15V(A)
+5V(A)
+4.6V to +5.3V
C220
100UF
25V
YK
0V(SIG)
Track by pre-out to pwr-in
0V(SIG_2)
For preamp bulk decoupling
-15V(A)
CON205
WAGO
256
2
GREY
1
GREY
DRAWING TITLE
23425
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
R203
2R2
0W33
FU
A80/P80 Power Supplies
Filename:
Notes:
Contact Engineer:
VFD SUPPLY
(NF ON P80)
C222
100N
50V
0805
L943C2_5.1.SCH
A80
C212
0V(D)
22UF
28Sheet of
63V
YK
DRAWING NO.
-38V_VFD
FIL_1
FIL_2
ISSUE
L943C2
R211
1K0
0805
0W125
03_E264 MJT 09 Sept 03 Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm 5.0
03_E147 MJT 23 May 03 Removed double connection from R221 to star point . PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP R204, R205 CHANGED FROM 2R2 TO 0R 2.117 APR 03
INITIALS
Printed:
DATE
9-Sep-2003
Contact Tel: (01223) 203 200Mark Tweedale
ECO No. DESCRIPTION OF CHANG E
Page 3
0V_LS_L
DZ406
BZX84C
3V9
SOT-23
+45V_L
ANNOTATION
VIPROT_L
OUTPUT_L
0V_LS_L
0V_HF_L
-45V_L
->
R405
47R
0W125
0805
0V_FB_L
0V_FB_L
C417
100N
50V
0805
C416
470P
100V
FKP2
DZ405
BZX84C
15V
SOT-23
C420
100N
50V
0805
P401
3
2
Q403
84
Q409
TR408
FMMT497
SOT-23
IC400A
TL072CD
SO-8
TR404
FMMT597
SOT-23
R400
22K
0W125
0805
C410
100UF
25V
YK
0V_HF_L
INPUT FILTER V TO I AMP
PRE_OUT_L
P415
SHEET 3
0V_FB_L
DZ402
BZX84C
3V9
SOT-23
DZ403
BZX84C
3V9
SOT-23
0V_HF_L
R410
1K0
0W125
0805
C419
100N
50V
0805
C414
100UF
25V
YK
DZ404
BZX84C
15V
SOT-23
R402
22K
0W125
0805
0V_HF_L
TR400
BC859B
SOT-23
1
0V_FB_L
D400
BAS16
SOT-323
NF
C400
P402
47P
100V
0805
R443
4K7
0W125
0805
0V_FB_L 0V_FB_L
R445
22R
0W25
MF
R446
22R
0W25
MF
NF
C401
P433
47P
100V
0805
PNP CURRENT MIRROR
NF
R409
1K0
0W125
0805
INTEGRATING DC SERVO
C422
470N
100V
MKS2
7
IC400B
TL072CD
SO-8
NF
R451 18K
0W25 MF
R447
820R
0W25
MF
R448
820R
0W25
MF
NF
R412
1K0
0W125
0805
NPN CURRENT MIRROR
P454
R407
47R
0W125
0805
TR416
BC849B
SOT-23
D404
BAS16
SOT-323
R404
22K
0W125
0805
R415
220R
0W25
MF
R406
47R
0W125
0805
P408
TR401
BC859B
SOT-23
P409
P440
R437
5K6
0W125
0805
P459
P407
P442
TR402
FMMT597
SOT-23
NF
R419
470K
0W125
0805
0V_FB_L
TR412B
ZDT6758
SM-8
REF400
LM431AIM3
SOT-23
PRE DRIVER BIAS
& TEMP. COMP.
TR414A
ZDT758
SM-8
R433
22R
0W125
0805
TR411
FMMT497
SOT-23
P458
TR417
BC849B
SOT-23
R408
47R
0W125
0805
P404
R418
1K0
0W125
0805
P405
123
R440 4K7
0W125 0805
R403 10K
0W125 0805
R439
22K
0W125
0805
C415
100UF
25V
YK
P438
C402
100P
100V
0805
P439
C403
100P
100V
0805
R460
330R
0W125
0805
R413
1K0
0W125
0805
R417
1K0
0W125
0805
R420
1M0
0W125
0805
6
D409
P420
5
BAV99
SOT-23
NF
R458 18K
R416
220R
0W25
MF
0W25 MF
C406
10N
100V
0805
CON400
HARWIN
M20-973
*
P456
R449
820R
0W25
MF
R450
820R
0W25
MF
~1.6V
0V_FB_L
0V_FB_L
C411
100UF
25V
YK
NF
R421
470K
0W125
0805
C404
10N
100V
0805
0V_FB_L
C407
10N
100V
0805
BOOTSTRAPBOOTSTRAP
PRE DRIVER
TR407
FMMT497
SOT-23
C423
100UF
100V
YK
R452
1K0
1W
CF
R453
1K0
1W
CF
C424
100UF
100V
YK
TR405
FMMT597
SOT-23
PRE DRIVER
P410
P444
R422
100R
0W125
0805
R427
100R
0W125
0805
D405
1N4003
DO-41
C425
10UF
50V
YK
D408
1N4003
DO-41
TR412A
ZDT6758
SM-8
P411
R431
22R
0W125
0805
R423
220R
0W25
MF
D401
BAS16
SOT-323
BIAS MEASURE BIAS
ADJUST
C405
10N
100V
0805
R428
220R
0W25
MF
R434
22R
0W125
0805
P400
TR414B
ZDT758
SM-8
TR413
SAP15NY
SAP
RV400
220R
LIN
TR415
SAP15PY
SAP
C408
22UF
63V
YK
0V_HF_L
DZ400
22V
BZX84C
SOT-23
P403
OUTPUT STAGE V-I PROTECTION
R438
10K
0W125
0805
R456
R411
1K0
0W125
0805
R454
100K
0W125
0805
R414
1K0
0W125
0805
CON401
HARWIN
M20-973
1
2
330R
0W125
0805
R457
330R
0W125
0805
P427
P449
R424
100R
0W125
0805
R429
100R
0W125
0805
R432
22R
0W125
0805
C412
100UF
25V
YK
C413
100UF
25V
YK
R435
22R
0W125
0805
R441
10K
0W125
0805
R425
100R
0W125
0805
R430
100R
0W125
0805
P429
P451
V-I PROTECTION
P406
DZ401
22V
BZX84C
SOT-23
0V_HF_L
C409
22UF
63V
YK
D402
BAS16
SOT-323
P430
TR409
FMMT497
SOT-23
TR406
FMMT597
SOT-23
P452
D403
BAS16
SOT-323
R426
100R
0W125
0805
D406
1N4003
DO-41
D407
1N4003
DO-41
P431
P413
R436
10K
0W125
0805
R442
4K7
0W125
0805
P432
TR410
FMMT497
SOT-23
0V_HF_L
0V_HF_L
TR403
FMMT597
SOT-23
P414
R401
10K
0W125
0805
R444
10K
0W125
0805
R459
5R6
2W
CF
ZOBEL NETWORK
C427
100N
100V
MKS2
VI PROTECT
SIGNAL TO MICRO
C426
10UF
50V
YK
OUT_L
C421
100N
50V
0805
ITEM400 1 Con Jumper Socket 0.1IN Gold Blue8K004
* - Default jumper setting on pins 2 & 3; fit jumper
on pins 1 & 2 to increase bias voltage;
remove jumper to decrease bias voltage
DRAWING TITLE
23425
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A80/P80 - Po wer Amp Left
Filename:
L943C4_5.1.SCH
Notes:
A80
Contact Engineer:
03_E264 MJT 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm 5.0
03_E147 MJT 23 May 03 None to this sheet. PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP NO CHANGE TO THIS SHEET 2.117 APR 03
INITIALS
Printed:
DATE
9-Sep-2003
48Sheet of
DRAWING NO.
L943C4
Contact Tel: (01223) 203 200Mark Tweedale
ECO No. DESCRIPTION OF CHANG E
ISSUE
Page 4
->
R505
47R
0W125
R500
22K
0W125
0805
0V_FB_R
0V_FB_R
C517
100N
50V
0805
C516
470P
100V
FKP2
DZ505
BZX84C
15V
SOT-23
C520
100N
50V
0805
C510
100UF
25V
YK
0V_HF_R
INPUT FILTER V TO I AMP
PRE_OUT_R
P515
SHEET 3
0V_FB_R
DZ502
BZX84C
3V9
SOT-23
DZ503
BZX84C
3V9
SOT-23
0V_HF_R
R510
1K0
0W125
0805
C519
100N
50V
0805
C514
100UF
25V
YK
DZ504
BZX84C
15V
SOT-23
R502
22K
0W125
0805
0V_HF_R
0805
P501
TR508
FMMT497
SOT-23
Q503
IC500A
TL072CD
84
3
SO-8
2
Q509
TR504
FMMT597
SOT-23
TR500
BC859B
SOT-23
1
0V_FB_R
R545
22R
0W25
MF
R546
22R
0W25
MF
D500
BAS16
SOT-323
NF
C500
47P
100V
0805
NF
C501
47P
100V
0805
NF
R509
P502
1K0
0W125
0805
INTEGRATING DC SERVO
C522
470N
100V
MKS2
7
R543
IC500B
4K7
TL072CD
0W125
SO-8
0805
NF
R551 18K
0W25 MF
R547
820R
0W25
MF
R548
820R
0W25
MF
P533
PNP CURRENT MIRROR
0V_FB_R0V_FB_R
NF
R512
1K0
0W125
0805
NPN CURRENT MIRROR
P554
R507
47R
0W125
0805
TR516
BC849B
SOT-23
D504
BAS16
SOT-323
R504
22K
0W125
0805
R515
220R
0W25
MF
R506
47R
0W125
0805
P508
TR501
BC859B
SOT-23
P509
P540
P507
R537
5K6
0W125
0805
P559
P542
TR502
FMMT597
SOT-23
NF
R519
470K
0W125
0805
0V_FB_R
TR512B
ZDT6758
SM-8
REF500
LM431AIM3
SOT-23
PRE DRIVER BIAS
& TEMP. COMP.
TR514A
ZDT758
SM-8
R533
22R
0W125
0805
TR511
FMMT497
SOT-23
P558
TR517
BC849B
SOT-23
R508
47R
0W125
0805
P504
C502
R517
P505
1K0
100P
0W125
100V
0805
0805
R520
1M0
0W125
0805
6
D509
P520 P527
5
BAV99
SOT-23
NF
R558 18K
R516
220R
0W25
MF
0W25 MF
C506
10N
100V
0805
CON500
HARWIN
M20-973
*
P556
R518
1K0
0W125
0805
123
R540 4K7
0W125 0805
R503 10K
0W125 0805
R539
22K
0W125
0805
P539
C515
100UF
25V
YK
P538
R560
330R
0W125
0805
R513
1K0
0W125
0805
C503
100P
100V
0805
R549
820R
0W25
MF
R550
820R
0W25
MF
~1.6V
0V_FB_R
0V_FB_R
C511
100UF
25V
YK
NF
R521
470K
0W125
0805
0V_FB_R
C504
10N
100V
0805
C507
10N
100V
0805
BOOTSTRAPBOOTSTRAP
PRE DRIVER
TR507
FMMT497
SOT-23
C523
100UF
100V
YK
R552
1K0
1W
CF
R553
1K0
1W
CF
C524
100UF
100V
YK
TR505
FMMT597
SOT-23
PRE DRIVER
P510
P544
R522
100R
0W125
0805
R527
100R
0W125
0805
D505
1N4003
DO-41
C525
10UF
50V
YK
D508
1N4003
DO-41
TR512A
ZDT6758
SM-8
P511
R531
22R
0W125
0805
R523
220R
0W25
MF
D501
BAS16
SOT-323
BIAS MEASURE BIAS
ADJUST
C505
10N
100V
0805
R528
220R
0W25
MF
R534
22R
0W125
0805
P546
TR514B
ZDT758
SM-8
TR513
SAP15NY
SAP
RV500
220R
LIN
TR515
SAP15PY
SAP
C508
22UF
63V
YK
0V_HF_R
DZ500
22V
BZX84C
SOT-23
Q500
OUTPUT STAGE V-I PROTECTION
R538
10K
0W125
0805
R511
1K0
0W125
0805
R554
100K
0W125
0805
R514
1K0
0W125
0805
CON501
HARWIN
M20-973
1
2
R556
330R
0W125
0805
R557
330R
0W125
0805
P549
R524
100R
0W125
0805
R529
100R
0W125
0805
R532
22R
0W125
0805
C512
100UF
25V
YK
C513
100UF
25V
YK
R535
22R
0W125
0805
R541
10K
0W125
0805
R525
100R
0W125
0805
R530
100R
0W125
0805
P529
P551
V-I PROTECTION
Q511
DZ501
22V
BZX84C
SOT-23
0V_HF_R
C509
22UF
63V
YK
D502
BAS16
SOT-323
P530
TR509
FMMT497
SOT-23
TR506
FMMT597
SOT-23
P552
D503
BAS16
SOT-323
R526
100R
0W125
0805
D506
1N4003
DO-41
D507
1N4003
DO-41
P531
P513
R536
10K
0W125
0805
R542
4K7
0W125
0805
P532
TR510
FMMT497
SOT-23
0V_HF_R
0V_HF_R
TR503
FMMT597
SOT-23
P514
R501
10K
0W125
0805
R544
10K
0W125
0805
R559
5R6
2W
CF
ZOBEL NETWORK
C527
100N
100V
MKS2
VI PROTECT
SIGNAL TO MICRO
C526
10UF
50V
YK
OUT_R
C521
100N
50V
0805
0V_LS_R
DZ506
BZX84C
3V9
SOT-23
+45V_R
ANNOTATION
VIPROT_R
OUTPUT_R
0V_LS_R
0V_HF_R
-45V_R
ITEM500 1 Con Jumper Socket 0.1IN Gold Blue8K004
* - Default jumper setting on pins 2 & 3; fit jumper
on pins 1 & 2 to increase bias voltage;
remove jumper to decrease bias voltage
DRAWING TITLE
23425
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A80/P80 - Power Amp Right
Filename:
L943C5_5.1.SCH
Notes:
A80
Contact Engineer:
Contact Tel: (01223) 203 200Mark Tweedale
03_E264 MJT 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm 5.0
03_E147 MJT 23 May 03 None to this sheet. PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP NO CHANGE TO THIS SHEET 2.117 APR 03
INITIALS
Printed:
DATE
9-Sep-2003
58Sheet of
DRAWING NO.
L943C5
ECO No. DESCRIPTION OF CHANG E
ISSUE
Page 5
MOUNTED
UNDER IR EYE
LED806
SM
RED
SML-010
P801
+4.8V(D)_DISP
R803
10K
0W125
0805
TR801
BC849B
SOT-23
RX800
+5V
GND
PIC-26043TM2
0V(D)_DISP
O/P
0V(D)_DISP
C802
100N
50V
0805
R800
10K
0W125
0805
P802
R801
10K
0W125
0805
R856 330R
0W125 0805
P803
R802
10K
0W125
0805
TR800
BC849B
SOT-23
VFD LOCATORS
R807 0R0
R808 0R0
0W125 0805
0W125 0805
R851
C801
Q874
Q875
10UF
50V
SM
R840
47K
0W125
0805
-25V(FL)_A80
0V(D)_DISP
0V(D)_DISP0V(D)_DISP
DISP800 ITRON AH1016A
F1Pm4Pn5Pj6Pe7Pg8Pf9Pl10PAp11G1012G913G814G715G616G517G418G319G220G121Pa22Pi23Pk24Pb25Ph26Pc27PCOM28Pd29PDp30F
Q822
Q821
Q823
Q824
Q825
Q826
Q827
Q828
Q829
Q831
Q832
Q833
42
44
P23/D15/S1243P22/D14/S13
D312D213D114D015VPP16NC17VDD18OSC119OSC220VSS21NCS
-25V(FL)_A80
P800
0V(D)_DISP
R835
330R
0W125
0805
LED804
5mm
GRN
LED 5mm
C817
100N
50V
0805
C816
100N
50V
0805
0V(D)_DISP 0V(D)_DISP
R841
47K
0W125
0805
R836
330R
0W125
0805
LED805
5mm
GRN
LED 5mm
1
P21/D13/S14
2
P20/D12/S15
3
P03/D11
4
P02/D10
5
P01/D9
6
P00/D8
7
D7
8
D6
9
D5
10
D4
11
NC
+4.8V(D)_DISP
10K
0W125
0805
P804
Q834
Q835
Q836
Q837
Q838
Q839
Q840
Q841
40
38
S334S435S536S637S7
P10/S839P11/S9
P12/S1041P13/S11
22
0V(D)_DISP
X800
4.00MHz
3
2
SIL-3
0V(D)_DISP
R834
330R
0W125
0805
LED803
5mm
GRN
LED 5mm
PROCESSOR_LEDSP2_LEDSP1_LED
A80 ITEMS
Q802
R852
10K
0W125
0805
Q842
Q843
Q844
Q845
IC800
S2
S1
S0
P34/K4
P33/K3
P32/K2
P31/K1
P30/K0
SDO
SDI
SCK
PT6351
LQFP-44
1
(Fitted on A80 only)
R825
330R
0W125
0805
DZ800
BZX84C
22V
SOT-23
Q876
DZ801
BZX84C
5V6
SOT-23
Q877
TR806 FMMT597
SOT-23
32
Q846
Q847
33
32
31
30
29
28
27
26
25
Q858
24
Q859
23
Q860
Q861
Q881
Q873
+4.8V(D)_DISP
C807
100N
50V
0805
CHAS_DISPCHAS_DISP
0V(D)_DISP
R855
1K0
0805
0W125
C812
10UF
50V
SM
-25V(FL)_A80
0V(D)_DISP
R809
0R0
0W125
0805
C808
100N
50V
0805
Q862
P805
D801
BAS16
SOT-323
C813
10UF
50V
SM
R842
47K
0W125
0805
Q863
C800
C803
10UF
100N
50V
50V
SM
0805
C805
100N
50V
0805
0V(D)_DISP
SW800
1
3
R830 330R
0W125 0805
R831 330R
0W125 0805
Q864
D802
BAS16
SOT-323
A
C
EC16B242040A
D800
BAS16
SOT-323
2
B
R843
47K
0W125
0805
R844
47K
0W125
0805
TUNER
SW801
1
2
ENTER SELECT PHONO CD
SW804
SW806
1
2
1
SP1 SP2 AV
SW805
SW807
1
2
1
-38V_VFD
CATHODE BIAS
C835
10UF
50V
SM
+4.8V(D)_DISP
R804
10K
0W125
0805
R845
47K
0W125
0805
R846
47K
0W125
0805
SW808
2
1
SW809
2
1
R814
0R0
0W125
0805
LED802
3mm
GRN
LED 3mm
R823
0R0
0W125
0805
DRAWING NO.
ANNOTATION
R815
0R0
0W125
0805
0V(D)_DISP
R824
0R0
0W125
0805
R816
0R0
0W125
0805
L943C8
ISSUE
COMMON ITEMS
Q818
Q819
+4.8V(D)_DISP
*RESET_DISP
+4.8V(D) / 0V(D)
+4.8V(D)_DISP
0V(D)_DISP
+4.8V(D)_DISP
VCC
GND
0V(D)_DISP
0V(D)_DISP
(Fitted on both A80 & P80)
C830
10N
100V
0805
C837
47P
100V
0805
CHAS_DISP
+4.8V(D)_DISP
C832
100UF
6.3V
SM
0V(D)_DISP
R838
220R
0W25
MF
LED800
3mm
BICOL
LED 3mm
POWER-ON RESET
IC801
RST
Q872
LM809M3-3.08
SOT-23
1
Q887
C820
100N
50V
0805
DRAWING TITLE
ARCAM
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9QR
NOTE:
All resistor / small capacitor
combinations are placed near
flexfoil connector for EMC filtering
C831
10N
100V
0805
C838
47P
100V
0805
C833
100UF
6.3V
SM
TR803
MMUN2111LT1
SOT-23
R839
220R
0W25
MF
POWER LEDs
MASTER
R806
1K0
0W125
0805
FIX804
Dia 3.2mm
1
0V(D)_DISP
C826
1N0
100V
0805
C811
100N
50V
0805
Q853
*PWR_LED_GRN_DISP
C810
100N
50V
0805
C815
100N
50V
0805
CHAS_DISP
FIX805
Dia 3.2mm
Q888
C821
100N
50V
0805
C827
1N0
100V
0805
*RESET_DISP
0V(D)_DISP
CHAS_DISP
1
Q889
C822
100N
50V
0805
C828
1N0
100V
0805
A80 & P80 Display Circuitry
Filename:
L943C8_5.1.SCH
Notes:
A80
Contact Engineer:
FIX800
Dia 3.2mm
FIX808
Dia 3.2mm
FIX807
Dia 3.2mm
VFD_SDATA / *SP1_LED DISP
PHASE_A / *SP2_LED DISP
FIX806
Dia 3.2mm
Contact Tel: (01223) 203 200Mark Tweedale
1
0V(D)_DISP
1
0V(D)_DISP
1
0V(D)_DISP
CHAS_DISP
1
Q890
0V(D)_DISP
CHAS_DISP
Q820
C806
100N
50V
0805
CHAS_DISP
Q892
C834
100N
50V
0805
CHAS_DISP
Q891
C824
100N
50V
0805
C823
100N
50V
0805
0V(D)_DISP
R818
0R0
0W125
0805
R819
0R0
0W125
0805
03_E264 MJT 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 Display snapoff fixing holes reduced to 3.2mm 5.0
03_E147 MJT 23 May 03 None to this sheet. PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP NO CHANGE TO THIS SHEET 2.117 APR 03
INITIALS
ECO No. DESCRIPTION OF CHANG E
Printed:
TO MAIN PCB - SHEET6
CON800 MOLEX 52044
REMOTE_DISP
R810
0R0
0W125
0805
R853
R854
100R
100R
0W125
0W125
0805
0805
C836
10UF
50V
SM
R805
10K
0W125
0805
R826 330R
0W125 0805
R847
47K
0W125
0805
SW810
2
1
2
TAPE
SW811
2
1
2
PHASE_A / *SP2_LED DISP
PHASE_B / *SP2_SW DISP
VFD_SDO / *SP1_SW DISP
VFD_SDATA / *SP1_LED DISP
VFD_SCLK / *PWR_BTN DISP
VFD_CS / 0V(D)
R849
47K
0W125
0805
R848
47K
0W125
0805
-25V(FL)_A80
R821
0R0
0W125
0805
CHAS_DISP
R817
0R0
0W125
0805
CHAS_DISP
0V(D)_DISP
+4.8V(D) / 0V(D)
FIL1 / 0V(D)
FIL2 / 0V(D)
C829
1N0
100V
0805
C825
1N0
100V
0805
C804
100N
50V
0805
123456789
Q803
Q804
Q805
0V(D)_DISP
PHASE_A / *SP2_LED DISP
*PWR_LED_RED_DISP
A80:AUX A80:DVD
P80:SP1 P80:SP2
SW802
1
2
FIX801
Dia 3.2mm
SW803
1
1
0V(D)_DISP
10111213141516171819202122
Q806
Q807
Q808
Q809
Q810
330R
330R
R828
R827
0W125 0805
0W125 0805
VFD_SDO / *SP1_SW DISP
PHASE_B / *SP2_SW DISP
VFD_SDATA / *SP1_LED DISP
FIL2 / 0V(D)
FIL1 / 0V(D)
POWER
SW812
SDTX-644
1
2
FIX802
Dia 3.2mm
Q885
C818
100N
50V
0805
Q811
Q812
Q813
Q814
Q815
Q816
Q817
330R
R829
0W125 0805
*PWR_LED_GRN_DISP
*PWR_LED_RED_DISP
VFD_CS / 0V(D)
VFD_SCLK / *PWR_BTN DISP
TR802
MMUN2111LT1
SOT-23
R837
220R
C809
0W25
100N
MF
50V
0805
CHAS_DISP CHAS_DISP
RED GRN
C814
100N
50V
0805
2
FIX803
Dia 3.2mm
1
Q886
C819
100N
50V
0805
0V(D)_DISP
P80 ITEMS
(Fitted on P80 only)
R813
R812
R811
0R0
0W125
0805
Q855 Q856
R832
330R
0W125
0805
SP1_LED SP2_LED
R820
0R0
0W125
0805
DATE
9-Sep-2003
0R0
0R0
0W125
0W125
0805
0805
(used to
tie down
track at
display side)
+4.8V(D)_DISP
TR804
MMUN2111LT1
SOT-23
LED801
3mm
GRN
LED 3mm
VFD_SDO / *SP1_SW DISP
PHASE_B / *SP2_SW DISP
VFD_SCLK / *PWR_BTN DISP
88Sheet of
R850
0R0
0W125
0805
0V(D)_DISP0V(D)_DISP
R822
0R0
0W125
0805
TR805
MMUN2111LT1
SOT-23
R833
330R
0W125
0805
A2
Page 6
+45V_L
+4.8V(D)
0V(D)
0V_CHASS
+45V_L
+4.8V(D)
0V(D)
0V_CHASS
NF ON P80
C705
100N
50V
0805
0V_CHASS
C701
100N
50V
0805
SKT700
HOSIDEN HSJ
GND1
GND2
L700
70R@100MHz
0V(D)
NC1
NC2
C700
100N
50V
0805
C710
100P
100V
0805
TRIGGER OUT
~13.5V @ 30mA max
R727
10K
0W125
0805
R706
0R0
0W125
0805
TR700
BD179
TO-126
P708
P80 TRIGGER IN
<-------- Vin
R738
2K2
0W125
0805
Vout=0.82Vin
R728
10K
0W125
0805
R726
22R
0W125
0805
(NF ON A80)
Q715
DZ701
BZX84C
4V7
SOT-23
R715
100R
0W125
0805
+4.8V(D)
R707
1 2
4K7
0W125
0805
P707
D704
R724
22K
0W125
0805
TR701
BC849B
SOT-23
BAT54SSOT-23
+45V_L
R725
22K
0W125
0805
Q709
DZ700
BZX84C
15V
SOT-23
ITEM700 3 Con Jumper Socket 0.1IN Gold Blue8K004
C720
10UF
50V
YK
NF ON A80
ANNOTATION
REMOTE_P
REMOTE_N
TO SHEET 6
TRIG_IN
0.38Hz_CLK
*RESET
PRE_OUT_L
0V_PREOUT
PRE_OUT_R
NF
R714
0R0
0W125
0805
0.38Hz_CLK
R700
100K
0W125
0805
P715P716
R721
0R0
0W125
0805
0V(D)
R701
100K
0W125
0805
R709
33K
0W125
0805
R710
33K
0W125
0805
C702
P701
100N
50V
0805
C711
100P
100V
0805
SET SENSITIVIT Y
Jumper Fitted = ~0.5mVrms (default);
Jumper Not Fitted = ~2mVrms
C712
100P
100V
0805
C703
P704
100N
50V
0805
SET SENSITIVIT Y
Jumper Fitted = ~0.5mVrms (default);
Jumper Not Fitted = ~2mVrms
P700
CON700
HARWIN
M20-973
P709
CON701
HARWIN
M20-973
P80 SIG DETECT
(NF ON A80)
+4.8V(D)
R735
C715
47R
100UF
0W125
25V
0805
R702
100K
0W125
0805
R722
680R
0W125
0805
C716
100UF
25V
YK
R703
100K
0W125
0805
R723
680R
0W125
0805
C717
100UF
25V
YK
0V(D)
YK
3
2
D700
D701
BAV99 SOT-23
10
9
D702
BAV99 SOT-23
D703
BAV99 SOT-23
IC700A
LM324D
SO-14
411
1
0V(D)
R704
100K
0W125
0805
BAV99 SOT-23
IC700C
LM324D
SO-14
8
R705
100K
0W125
0805
+1.6V(D)
P702
R716
330R
0W125
0805
2
1
0V(D)
+1.6V(D)
P705
R717
330R
0W125
0805
2
1
0V(D)
P713
P710
C704
100N
50V
0805
+4.8V(D)_2
C721
220UF
16V
YK
P712
R711
22K
0W125
0805
R712
22K
0W125
0805
+1.6V(D)
+4.8V(D)_2
R718
1K0
0W125
0805
P703
R719
1K0
0W125
0805
R720
1K0
0W125
0805
0V(D)
IC700B
LM324D
SO-14
P711
7
6
R713
100K
0W125
0805
C706
100N
50V
0805
P706
+1.6V(D)
R708
100K
0W125
0805
+4.8V(D)_2
0V(D)
P714
C718
100UF
25V
YK
R736
3K3
0W125
0805
R737
2K2
0W125
0805
IC701A
IC700D
LM324D
SO-145
12
13
14
LATCH & COUNTER RESET
Q714
Q713
DRAWING TITLE
10
CP
11
MR
74HCT4040D
SO-16
A80/P80 T rig, RC5 & P80 S ig Det
23425
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
9
Q0
7
Q1
6
Q2
5
Q3
3
Q4
2
Q5
4
Q6
13
Q7
12
Q8
14
Q9
15
Q10
1
Q11
Filename:
Notes:
A80
Contact Engineer:
Q718
L943C7_5.1.SCH
P80 DELAYED OFF
Q719
AUTO-OFF
DELAY SET
CON702
1
2
3
HARWIN
M20-973
Pins 1&2: ~12 mins (default)
Pins 2&3: ~45 mins
Contact Tel: (01223) 203 200Mark Tweedale
(NF ON A80)
0V(D)
Power-On Reset
+4.8V(D)_2
IC701B
16
VCC
+4.8V(D)_2
0V(D)
GND
74HCT4040D
SO-16
IC703C
VCC
GND
74HCT74D
SO-14
TR702
MMUN2111LT1
SOT-23
R733
3K3
0W125
0805
INVERTER
4
IC703A
0V(D)
2
D
3
CLK
12
D
11
CLK
5
Q
SD
6
Q
RD
74HCT74D
1
SO-14
Q
Q
INITIALS
Printed:
Q724
9
P724
8
DATE
9-Sep-2003
LATCH
10
IC703B
SD
RD
74HCT74D
13
SO-14
03_E264 MJT 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm 5.0
03_E147 MJT 23 May 03 None to this sheet. PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP NO CHANGE TO THIS SHEET 2.117 APR 03
ECO No. DESCRIPTION OF CHANG E
8
14
7
78Sheet of
0V(D)
+4.8V(D)_2
0V(D)
Q727
C708
100N
50V
0805
C709
100N
50V
0805
DRAWING NO.
L943C7
ISSUE
Page 7
TO SHEET 3
OUTPUT_L
OUTPUT_R
0V(SIG)
-38V_VFD
-45V_L
VOL_*CS
*PRE_MUTE
+4.8V_D_PRE
0V_D_PRE
TAPE_0
TAPE_1
TAPE_2
VOL_SCLK
0V_SER
VOL_SDATA
LISTEN_0
LISTEN_1
LISTEN_2
+45V_L
+45V_R
+4.8V(D)
REMOTE_P
(From Sheet 7)
REMOTE_N
0V(SIG)
-45V_L
PREAMP CONTROL LINES
0V(D)
(RESISTORS NF ON P80)
Q602
R611 10K
P601
0W125 0805
P602
R613 10K
P603
0W125 0805
P604
R626 10R
P605
0W125 0805
P606
R616 10K
P607
0W125 0805
P608
R618 10K
P609
0W125 0805
+45V_L
+45V_R
+4.8V(D)
0V(D)
R600 1K0
0W125 0805
R612 10K
0W125 0805
R614 1K0
0W125 0805
R615 1K0
0W125 0805
R617 10K
0W125 0805
AC PRESENT DETECT
R619
9VRMS
FIL_2
FIL_1
P610
10K
0W125
0805
NF ON P80
R601 0R0
0W125 0805
OVERCURRENT DETECTION
R627
VIPROT_L
VIPROT_R
4K7
0W125
0805
R628
4K7
0W125
0805
P611
0V(D)
P612
0V(D)
D600
BAS16
SOT-323
C612
10N
100V
0805
C613
10N
100V
0805
0V(D)
NF ON P80
C600
100N
50V
0805
0V(D)
IC601G
GND
74HC14
SO-14
NF ON P80
R604 0R0
0W125 0805
NF ON A80
R602
0R0
0W125
0805
Q642
Q600
Q601
Q603
Q604
Q605
Q606
Q607
Q608
Q609
Q610
Q611
14
VCC
7
TR600
BC849B
SOT-23
IC601B
3 4
74HC14
SO-14
IC601C
5 6
74HC14
SO-14
-38V_VFD
+4.8V(D)
P613
0V(D)
+4.8V(D)
C602
100N
50V
0805
0V(D)
P615
P616
R629
47R
0W125
0805
P614
IC600E
VCC
GND
74HC00D
SO-14
VOL_*CS_u
*PRE_MUTE_u
+4.8V_D_PRE
TAPE_0_u
TAPE_1_u
TAPE_2_u
VOL_SCLK_u
VOL_SDATA_u
LISTEN_0_u
LISTEN_1_u
LISTEN_2_u
R630
3K3
0W125
0805
C622
10UF
50V
YK
1
2
+4.8V(D)
14
7
0V(D)
C619
100UF
25V
YK
IC601A
1 2
74HC14
SO-14
IC600A
74HC00D
SO-14
C601
100N
50V
0805
3
C620
100UF
25V
YK
FIL_2
FIL_1
Connect near
IC602
0V(D)
Q633
Q634
AC_PRESENT
0V(D)
NF ON A80
R603
0R0
0W125
0805
NF ON A80
R605
0R0
0W125
0805
0V(D)
VI_LIM
NF
C614
10N
100V
0805
DC OFFSET DETECTION
R634
100K
0W125
0805
0V(D)
R635
100K
0W125
0805
NF
C615
0V(D)
10N
22
100V
0805
CON600 MOLEX 52045
Q629
DZ600
BZX84C
3V9
SOT-23
Q614
R640
33K
0W125
0805
DZ601
BZX84C
3V9
SOT-23
Q616
R641
33K
0W125
0805
P80:0V(D)
A80:REMOTE
Q619
C623
10UF
63V
NONP
C624
10UF
63V
NONP
P80:*SP2_LED
A80:PHASE_A
Q620
Q612
Q613
+45V_L
+45V_R
P80:0V(D)
P80:0V(D)
P80:*SP2_SW
A80:FIL1
A80:PHASE_B
A80:FIL2
Q621
Q622
Q623
TO DISPLAY - SHEET 8
+45V_R
R636
100K
0W125
D601
BAV99
SOT-23
D602
BAV99
SOT-23
0V(D)
P625
P627
D603
BAV99
SOT-23
P623
-45V_L
0805
R650
22K
0W125
0805
Q631
TR608
FMMT497
SOT-23
P626
TR605
FMMT597
SOT-23
P624
0V(D)
TR604
FMMT597
SOT-23
R651
22K
0W125
0805
DZ602
BZX84C
4V7
SOT-23
Q632
R649
3K3
0W125
0805
R663
0R0
0W125
0805
THERMAL CUTOUT
RTH600
PTC 110DEG
PTC
P617
R638
680R
0W125
0805
P618
TR602
FMMT597
SOT-23
R645
4K7
0W125
0805
RTH601
PTC 110DEG
PTC THERM
P620
R639
680R
0W125
0805
P621
TR603
FMMT597
SOT-23
R647
4K7
0W125
0805
P80:*SP1_LED
P80:*SP1_SW
A80:VFD_SDO
A80:VFD_SDATA
Q624
Q625
R620
2K2
0W125
0805
R621
2K2
0W125
0805
Q645
Q640
DZ603
BZX84C
4V7
SOT-23
0V(D)
Q641
DZ604
BZX84C
4V7
SOT-23
0V(D)
NF ON P80
C625
100V 0805
C616
10N
100V
P80:*RESET
P80:0V(D)
P80:*PWR_LED_GRN
P80:*PWR_LED_RED
A80:*PWR_LED_RED
A80:*PWR_LED_GRN
0805
C617
10N
100V
0805
A80:+4.8V(D)
A80:*RESET
-38V_VFD
123456789101112131415161718192021
P619
R646
4K7
0W125
0805
P622
R648
4K7
0W125
0805
P80:0V(D)
P80:*PWR_BTN
A80:VFD_SCLK
A80:VFD_CS
Q626
Q627
Q630
Q643
Q644
1N0
C603
100N
50V
0805
C604
100N
50V
0805
C628
1N0
100V
0805
IC601D
74HC14
SO-14
IC601E
74HC14
SO-14
C626
1N0
100V
0805
NF ON P80
C618
10N
100V
0805
C629
1N0
100V
0805
89
1011
NF ON P80
C627
1N0
100V
0805
Q628
P628
P629
IC600B
4
6
5
74HC00D
SO-14
P600
IC600C
9
10
P630
IC600D
12
13
74HC00D
SO-14
Q618
Q635
Q636
Q637
C630
100P
100V
0805
NF ON A80
R606
0R0
0W125
0805
0V(D)
+4.8V(D)
C605
100N
50V
0805
0V(D)0V(D)
74HC00D
SO-14
11
C631
100P
100V
0805
Q638
8
NF ON P80
R653 330R
0W125 0805
R655 330R
0W125 0805
R657 330R
0W125 0805
R659 330R
0W125 0805
NF ON P80
R661 330R
0W125 0805
NF ON A80
R607
0R0
0W125
0805
0V(D)
C632
47P
100V
0805
C633
47P
100V
0805
0V(D)
R654 330R
0W125 0805
R656 330R
0W125 0805
R658 330R
0W125 0805
R660 330R
0W125 0805
R622 10K
0W125 0805
C606
100N
50V
0805
NF ON A80
R608
0R0
0W125
0805
FIX600
Dia 3.5mm
+4.8V(D)
DC_OFFSET
1
D608
BAT54S
SOT-23
0V(D)
Q639
ITEM600 1 Con Jumper Socket 0.1IN Gold Blue8K004
IC603-1 1 IC Skt 28PIN 0.3IN8S028N Socket for IC603; NF on A80
NF ON P80
R623
10K
0W125
0805
0V(D)
AC_PRESENT
DC_OFFSET
VI_LIM
THERM
REMOTE
PHASE_A / *SP2_LED
PHASE_B / *SP2_SW
VFD_SDO / *SP1_SW
VFD_SDATA / *SP1_LED
VFD_SCLK / *PWR_BTN
VFD_CS
*PWR_LED_RED
*PWR_LED_GRN
*NMI
*RESET
TRIG_IN
(From Sheet 7)
DRAWING TITLE
C607
100N
50V
0805
23425
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
NF ON A80
R652
33K
0W125
0805
NF ON A80
C621
100UF
25V
YK
VFD_CS
*PWR_LED_RED
*PWR_LED_GRN
VFD_SCLK / *PWR_BTN
VFD_SDO / *SP1_SW
VFD_SDATA / *SP1_LED
*NMI
+4.8V(D)
*PWR_LED_RED
*PWR_LED_GRN
CON601
HARWIN
M20-973
2
P634
P635
P636
P637
P638
P639
P640
P641
P643
1
IC601F
74HC14
SO-14
Fit jumper for
normal operation
R637
100K
0W125
0805
R631
10K
0W125
0805
REMOTE
PHASE_A / *SP2_LED
PHASE_B / *SP2_SW
*RESET
*PWR_LED_RED
*PWR_LED_GRN
PHASE_A / *SP2_LED
PHASE_B / *SP2_SW
VFD_SDO / *SP1_SW
VFD_SDATA / *SP1_LED
VFD_SCLK / *PWR_BTN
REMOTE
A80/P80 Protection & M icros
1213
P645
VOL_SCLK_u
P633
R662
100K
0W125
0805
0V(D)
Filename:
Notes:
A80
Contact Engineer:
0.38Hz OSCILLATOR
(FOR P80 AUTO-OFF)
NF ON A80
R624
10K
0W125
0805
A80 MICRO
(NF on P80)
VOL_SDATA_u
VOL_*CS_u
Fit jumper to
re-program
L943C6_5.1.SCH
*PRE_MUTE_u
RS232_RX
RS232_TX
R642
2K2
0W125
0805
LISTEN_1_u
LISTEN_2_u
2
CON602
HARWIN
M20-973
LISTEN_0_u
1
TAPE_2_u
TAPE_1_u
R632
3K3
0W125
0805
TAPE_0_u
Contact Tel: (01223) 203 200Mark Tweedale
P647
31
32
30
29
NC
NC
33
NC
34
NC
35
NMI
36
P80/FTCI
37
P81/FTIOA
38
P82/FTIOB
39
P83/FTIOC
40
P84/FTIOD
41
P85
42
P86
43
P87
44
P20/SCK3
45
P21/RXD
46
P22/TXD
47
NC
48
NC
SPKR2_ON
SPKR1_ON
PWR_ON
TRIG_IN
AC_PRESENT
THERM
R643
2K2
0W125
0805
P76/TMOV
NC49NC50P14/IRQ051P15/IRQ152P16/IRQ253P17/IRO3/TRGV54PB4/AN455PB5/AN556PB6/AN657PB7/AN758PB3/AN359PB2/AN260PB1/AN161PB0/AN062NC63NC
R633
3K3
0W125
0805
0V(D)
03_E264 MJT 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 5.0
03_E147 MJT 23 May 03 None to this sheet. PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP NO CHANGE TO THIS SHEET 2.117 APR 03
ECO No. DESCRIPTION OF CHANG E
+4.8V(D)
P646
27
P74/TMRIV28P75/TMCIV
26
P57/SCL
R644
2K2
0W125
0805
R625
4K7
0W125
0805
25
P56/SDA
INITIALS
Printed:
EEPROM_SDATA
EEPROM_SCLK
24
21
22
23
P11
P12
P10/TMOW
P55/WKP5/ADTRG
IC603 HT48R30A-1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
L028SW DIP-28
9-Sep-2003
Fit on CON601 after programming; NF ON P80
0.38Hz_CLK
R665
4K7
0W125
0805
+4.8V(D)
+4.8V_D_PRE
SP602
17
18
IC602
NC
NC
16
NC
P52/WKP219P53/WKP320P54/WKP4
VI_LIM
DC_OFFSET
PB5
PB4
PA3
PA2
PA1
PA0
PB3
PB2
PB1
PB0
VSS
(TMR)/INT
PC0
PC1
DATE
15
NC
14
P51/WKP1
13
P50/WKP0
12
Vcc
11
OSC1
10
OSC2
9
Vss
8
TEST
7
0V(D)
RES
6
Vcl
5
X1
P631
4
X2
3
AVcc
2
P632
NC
1
NC
HD64F3664FP
64
L943SW
LQFP-64
0V(D)
SPKR2_ON
*RESET
28
PB6
27
PB7
26
PA4
25
PA5
24
PA6
23
PA7
22
OSC2
21
OSC1
20
VDD
19
RES
18
PC5
17
PC4
16
PC3
15
PC2
R609
68Sheet of
0R0
0W125
0805
0V(D)0V(D)
0V(D)
Changed P80 s/w & fitted IC socket for IC603 (P80 only).
Display snapoff fixing holes reduced to 3.2mm
0.38Hz_CLK
(To Sheet 7)
IC604A
5
SDA
6
SCL
7
WP
24C02
SO-8
0V(D)
+4.8V(D)
8
C608
100N
50V
0805
4
0V(D)
C610
100N
50V
0805
C609
100N
50V
0805
SPKR1_ON
2
0V(D)
PWR_ON
SPKR2_ON
SPKR1_ON
*RESET
(To Sheet 7)
P80 MICRO
(NF ON A80)
+4.8V(D)
C611
100N
50V
0805
0V(D)
R610
0R0
0W125
0805
DRAWING NO.
A2
A1
A0
IC604B
VCC
GND
24C02
SO-8
3
1
ANNOTATION
3
2
1
X600
4.00MHz
SIL-3
L943C6
(To Top Sheet)
ISSUE
Page 8
+15V(A)
0V(SIG)
-15V(A)
DVD INPUT
C336
1N0
0V(SIG)
100V
0805
AV INPUT
+15V(A)
0V(SIG)
-15V(A)
TUNER INPUT
C337
1N0
0V(SIG)
100V
0805
CD INPUT
+15V(A)
0V(SIG)
-15V(A)
AUX INPUT
C338
1N0
0V(SIG)
100V
0805
PHONO/
AUX2 INPUT
C300
10N
100V
0805
C301
10N
100V
0805
C304
10N
100V
0805
C305
10N
100V
0805
C312
10N
100V
0805
C313
10N
100V
0805
0V(SIG)
0V(SIG)
0V(SIG)
+15V(A)
-15V(A)
+15V(A)
D302
TAPE IN L
TAPE IN R
0V(SIG)
+15V(A)
+15V(A)
0V(SIG)
0V(SIG)
+15V(A)
+15V(A)
0V(SIG)
0V(SIG)
+15V(A)
+15V(A)
-15V(A)
R317
100K
0W125
0805
0V(SIG)
R316
100K
0W125
0805
BAV99 SOT-23
D309
D310
BAV99 SOT-23
R320
100K
0W125
0805
R321
100K
0W125
0805
BAV99 SOT-23
D314
D315
BAV99 SOT-23
R323
100K
0W125
0805
R327
100K
0W125
0805
BAV99 SOT-23
D318
D319
BAV99 SOT-23
+15V(A)
-15V(A)
+15V(A)
-15V(A)
SCRN
+15V(A)
-15V(A)
+15V(A)
-15V(A)
SCRN
+15V(A)
-15V(A)
+15V(A)
-15V(A)
SCRN
D316
D300
BAV99
SOT-23
D301
BAV99
SOT-23
D307
BAV99
SOT-23
D308
BAV99
SOT-23
D313
BAV99
SOT-23
D317
BAV99
SOT-23
SKT302
KUNMING
GOLD
SKT303
KUNMING
GOLD
SKT304
KUNMING
GOLD
BAV99 SOT-23
R300
1K0
0W125
0805
REAR PANEL VIEW
R305
1K0
0W125
0805
R304
1K0
0W125
0805
REAR PANEL VIEW
R309
1K0
0W125
0805
R308
1K0
0W125
0805
REAR PANEL VIEW
PLACE JUMPERS ON PINS 1 & 2
TO ENABLE PHONO (DEFAULT),
BAV99
SOT-23
PINS 2 & 3 FOR AUX2
C320
470P
100V
FKP2
C321
470P
100V
FKP2
C324
470P
100V
FKP2
C325
470P
100V
FKP2
C327
470P
100V
FKP2
C331
470P
100V
FKP2
-15V(A)
-15V(A)
-15V(A)
-15V(A)
-15V(A)
-15V(A)
TAPE INPUT
C322
470P
100V
FKP2
R302
1K0
0W125
0805
-15V(A)
R301
1K0
0805
0W125
0V(SIG)
-15V(A)
R306
1K0
0W125
0805
0V(SIG)
-15V(A)
R310
1K0
0805
0W125
0V(SIG)
-15V(A)
R311
1K0
0W125
0805
0V(SIG)
-15V(A)
R314
1K0
0805
0W125
0V(SIG)
R318
100K
0W125
0805
R303
1K0
0W125
0805
R319
100K
0W125
0805
R322
100K
0W125
0805
R324
100K
0W125
0805
R325
100K
0W125
0805
R328
100K
0W125
0805
C302
10N
100V
0805
C306
10N
100V
0805
C307
10N
100V
0805
C314
10N
100V
0805
C315
10N
100V
0805
0V(SIG)
0V(SIG)
0V(SIG)
0V(SIG)
0V(SIG)
0V(SIG)
C323
470P
100V
FKP2
C326
470P
100V
FKP2
C328
470P
100V
FKP2
C329
470P
100V
FKP2
C332
470P
100V
FKP2
123
KUNMING
C303
10N
100V
0805
C308
10N
100V
0805
C309
10N
100V
0805
C317
10N
100V
0805
C316
10N
100V
0805
CON306
HARWIN
M20-973
CON307
HARWIN
M20-973
123
GOLD
C334
1N0
100V
0805
SCRN
+15V(A)
DVD R
DVD L
+15V(A)
AV L
AV R
+15V(A)
TUNER R
TUNER L
+15V(A)
CD L
CD R
+15V(A)
AUX R
AUX L
AUX2 L
PHO L
AUX2 R
PHO R
SKT300
REAR PANEL VIEW
TAPE OUTPUT
TOP_R
TOP_L
PHONO L
PHO L
PHONO R
PHO R
PHONO L
TAPE IN L
AUX L
CD L
TUNER L
AV L
DVD L
R312
AUX2 L
1K0
0W125
0805
PHONO R
TAPE IN R
AUX R
CD R
TUNER R
AV R
DVD R
R315
AUX2 R
1K0
0W125
0805
INPUT BUS
TAPE OUTPUT SELECT
+15V(A)
13
IC300
0V(SIG)
+5V(A)
4
X0
V+
5
X1
6
X2
7
X3
12
X4
11
X5
10
X6
9
X7
2
EN
1
A0
16
A1
15
A2
14
GND
V-
DG408DY
3
SO-16
8
D
PHONO L
AUX L
CD L
TUNER L
AV L
DVD L
AUX2 L
TAPE_0_PRE TAPE_0_PRE
TAPE_1_PRE
TAPE_2_PRE
PHONO PREAMP
+15V(A)
IC306A
NJM2114M
DMP-8
84
C353
100P
100V
FKP2
C354
100P
100V
FKP2
0V(SIG)
0V(SIG)
R326
100K
0W125
0805
R329
100K
0W125
0805
C355
47P
100V
0805
R339
47K
0W125
R345
0805
820R
0W125
0805
C357
22UF
50V
CFNE
0V(SIG)
C356
47P
100V
0805
R340
47K
0W125
R348
0805
820R
0W125
0805
C358
22UF
50V
CFNE
0V(SIG)
R352 22K
0W125 0805
R353 22K
0W125 0805
0W125 0805
R355 22K
0W125 0805 R359 22K
P319
C330
470P
100V
FKP2
R363 22K
0W125 0805 R367 22K
R364 22K
0W125 0805 R368 22K
R365 22K
0W125 0805
R366 22K
0W125 0805
P320
C333
470P
100V
FKP2
R349
680K
0W125
0805
C359
4N7
100V
FKP2
R350
680K
0W125
0805
C360
4N7
100V
FKP2
R356 22K
0W125 0805
R357 22K
0W125 0805R354 22K
R358 22K
0W125 0805
0W125 0805
0W125 0805
0W125 0805
R369 22K
0W125 0805
R370 22K
0W125 0805
3
2
-15V(A)
P300
R307
1K0
0W125
0805
C361
1N0
100V
FKP2
5
6
IC306B
NJM2114M
DMP-8
P302
R313
1K0
0W125
0805
C362
1N0
100V
FKP2
P327
P328
P329
P332
LISTEN_0_PRE
LISTEN_1_PRE
LISTEN_2_PRE
P337
P338
P341
LISTEN_0_PRE
LISTEN_1_PRE
LISTEN_2_PRE
P326
P334
P335
P336
C343
100N
50V
0805
1
C342 100N
50V 0805
R351
22K
0W125
0805
7
R360
22K
0W125
0805
P325
P330
P331
+5V(A)
0V(SIG)
P339
P340
+5V(A)
0V(SIG)
PHONO R
AUX R
CD R
TUNER R
AV R
DVD R
AUX2 R
TAPE_1_PRE
TAPE_2_PRE
0V(SIG)
0V(SIG)
P301
R373
33K
0W125
0805
C363
330P
100V
FKP2
P303
R374
33K
0W125
0805
C364
330P
100V
FKP2
4
X0
5
X1
6
X2
7
X3
12
X4
11
X5
10
X6
9
X7
2
EN
1
A0
16
A1
15
A2
14
GND
4
X0
5
X1
6
X2
7
X3
12
X4
11
X5
10
X6
9
X7
2
EN
1
A0
16
A1
15
A2
14
GND
+5V(A)
+15V(A)
13
3
-15V(A)
+15V(A)
13
3
-15V(A)
4
X0
5
X1
6
X2
7
X3
12
X4
11
X5
10
X6
9
X7
2
EN
1
A0
16
A1
15
A2
14
GND
-15V(A)
-15V(A)
IC302
V+
D
V-
DG408DY
SO-16
IC303
V+
D
V-
DG408DY
SO-16
-15V(A)
R375
2K2
0W125
0805
R376
2K2
0W125
0805
R377
2K2
0W125
0805
R378
2K2
0W125
0805
8
8
13
IC301
V+
V-
DG408DY
3
SO-16
C365
220UF
16V
YK
C366
220UF
16V
YK
Q328
-15V(A)
Q337
-15V(A)
D
C373
10UF
50V
YK
C374
10UF
50V
YK
C378
22P
100V
0805
R341
47K
0W125
0805
R342
100K
0W125
0805
C380
22P
100V
0805
R343
47K
0W125
0805
R344
100K
0W125
0805
8
0V(SIG)
0V(SIG)
0V(SIG)
0V(SIG)
R346
820R
0W125
0805
R347
820R
0W125
0805
IC307A
NJM2114M
DMP-8
2
3
R371 22K
0W125 0805
IC308A
NJM2114M
DMP-8
2
3
R361 22K
0W125 0805
+15V(A)
84
-15V(A)
C367
220UF
16V
YK
+15V(A)
84
-15V(A)
C370
220UF
16V
YK
1
1
C347
100N
50V
0805
C346
100N
50V
0805
C351
100N
50V
0805
C350
100N
50V
0805
0V(SIG)
0V(SIG)
R379
10K
0W125
0805
R380
10K
0W125
0805
0V(SIG)
0V(SIG)
C368
220UF
16V
YK
C371
220UF
16V
YK
P343
0V(SIG)
P344
0V(SIG)
P304
P305
0V(SIG_2)
-15V(A)
-15V(A)
R330
1M0
0W125
0805
R331
1M0
0W125
0805
5
6
IC305A
TL072CD
SO-8
3
2
+15V(A)
-15V(A)
C386
100UF
25V
CFNE
R386
3K3
0W125
0805
R389
3K3
0W125
0805
C388
100UF
25V
CFNE
R390
3K3
0W125
0805
R391
3K3
0W125
0805
IC305B
TL072CD
SO-8
+15V(A)
84
-15V(A)
0V(SIG)
0V(SIG)
IC304A
TL072CD
SO-8
C375
100UF
25V
ZA
C383
100UF
25V
ZA
R383
10K
0W125
0805
R384
10K
0W125
0805
7
1
5
6
3
2
C344
100N
50V
0805
C345
100N
50V
0805
ITEM300 6 Con Jumper Socket 0.1IN Gold Blue8K004
ITEM301 2 Pad Damping 15x6x3MM SorbothaneE802AP 1/2 pad placed on top of C386, C387, C388 & C389 (NF on P80)
4 of these NF on P80
FIT ON P80
A80 PreAmp Out /A80 Line Out /
IC304B
TL072CD
SO-8
+15V(A)
84
-15V(A)
TAPE OUTPUT
7
C340
100N
0V(SIG)
50V
0805
1
C341
100N
50V
0805
-15V(A)
-15V(A)
D303
BAV99
SOT-23
D304
BAV99
SOT-23
P349
P350
R332 47R
0W125 0805
+15V(A)
R333 47R
0W125 0805
+15V(A)
TOP_L
TOP_R
0V(SIG)
1
1
2
R338
10R
0W125
0805
SKT301
2
CON300
HARWIN
M20-973
KUNMING
GOLD
CON301
HARWIN
M20-973
P80 PowerAmp InP80 Pre Out Loop
C335
1N0
100V
0805
SP300
SCRN
REAR PANEL VIEW
FIT JUMPERS
ONLY ON P80
+15V(A)
-15V(A)
D305
BAV99
SOT-23
D306
BAV99
SOT-23
LINE OUTPUT
R334 47R
P351
0V(SIG_2)
C385
10UF
50V
YK
-15V(A)
VINL
R381
C376
10K
22P
0W125
100V
0805
0805
0V(SIG)
R382
C377
10K
22P
0W125
100V
0805
0805
VOLUME CONTROL
+15V(A)
0V(SIG_2)
0V(SIG)
VINR
0V(SIG)
DRAWING TITLE
C384
10UF
50V
YK
16
15
10
C352
100N
50V
0805
C348
100N
50V
0805
0V(SIG) 0V(SIG) 0V(SIG_2)
12
IC309
PGA2310UA
SO-16W
VA+
VINL
AGNDL
AGNDR
9
VINR
ZCEN1CS2SCLK
MUTE
VA-
6
8
13
+5V(A)
0V(SIG)
A80 PreAm p
23425
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
D311
-15V(A)
BAV99
SOT-23
FIT JUMPERS ON
PINS 1 & 2 (2 & 3
FOR PRE/PWR)
P352
D312
-15V(A)
BAV99
SOT-23
+5V(A)
VOUTL
SDO
7
4
VD+
14
VOUTL
11
P355 P354
DGND
5
*PRE_MUTE_PRE
VOL_SDATA_PRE
0V_SER_PRE
VOL_SCLK_PRE
VOL_*CS_PRE
R398
0R0
0W125
0805
L943C3_5.1.SCH
C390
100UF
25V
YK
VOUTR
SDI
3
NF
C339
1N0
100V
0805
C349
100N
50V
0805
VOUTR
Filename:
Notes:
A80
Contact Engineer:
0W125 0805
+15V(A)
R335 47R
0W125 0805
+15V(A)
R387
3K3
0W125
0805
R392
3K3
0W125
0805
0V(SIG)
R394
4K7
0W125
0805
R388
3K3
0W125
0805
R393
3K3
0W125
0805
123
CON304
HARWIN
M20-973
123
CON305
HARWIN
M20-973
-15V(A)
0V(SIG)
C369
220UF
16V
YK
R395
10K
0W125
0805
P358
P360
-15V(A)
Contact Tel: (01223) 203 200Mark Tweedale
0V(SIG)
C379
22P
100V
0805
C381
22P
100V
0805
R396
4K7
0W125
0805
R397
10K
0W125
0805
Q320
FIT ON P80
C310
10N
100V
0805
FIT ON P80
C311
10N
100V
0805
FIT ON P80
C318
10N
100V
0805
FIT ON P80
C319
10N
100V
0805
RLY300C
NEC
EB2-5NU
TR300
BC849B
SOT-23
*PRE_MUTE_PRE
TAPE_0_PRE
TAPE_1_PRE
TAPE_2_PRE
VOL_*CS_PRE
VOL_SDATA_PRE
0V_SER_PRE
VOL_SCLK_PRE
LISTEN_0_PRE
LISTEN_1_PRE
LISTEN_2_PRE
+15V(A)
+5V(A)
0V(SIG)
0V(SIG_2)
-15V(A)
P363
R385
3K3
0W125
0805
0V(SIG)
0V(SIG)
D320
BAS16
SOT-323
+15V(A)
-15V(A)
+15V(A)
-15V(A)
FIT JUMPERS TO ENGAGE
PREAMP FOR A80 BUILD
(NF FOR P80 OR PRE/PWR)
1
RLY300A
NEC
EB2-5NU
2
NF
R399
22K
0W125
0805
CON303
HARWIN
M20-973
0V(SIG)
DRAWING NO.
INITIALS
Printed:
C387
100UF
25V
CFNE
C389
100UF
25V
CFNE
DATE
9-Sep-2003
0V(SIG)
0V(SIG)
R362
22K
0W125
0805
R372
22K
0W125
0805
R336
47R
0W125
0805
R337
47R
0W125
0805
38Sheet of
5
7
6
IC307B
NJM2114M
DMP-8
IC308B
NJM2114M
DMP-8
6
7
5
0V(SIG)
0V(SIG)
C372
220UF
16V
YK
03_E264 MJT 09 Sept 03 None to this sheet. Remove EMC can from around IEC inlet. 5.1
03_E230 MJT 04 Aug 03 None to this sheet. Display snapoff fixing holes reduced to 3.2mm 5.0
03_E147 MJT 23 May 03 None to this sheet. PCB change. 4.0
03_E120 TGP 13 May 03 LEDs, BIAS & DOCUMENTATION CHANGE 3.0
03_E116 TGP NO CHANGE TO THIS SHEET 2.117 APR 03
ECO No. DESCRIPTION OF CHANG E
0V_PREOUT
(Sheet 7)
+4.8V_D_PRE
*PRE_RLY
*PRE_MUTE
0V_D_PRE
TAPE_0
TAPE_1
TAPE_2
VOL_*CS
VOL_SDATA
0V_SER
VOL_SCLK
LISTEN_0
LISTEN_1
LISTEN_2
+15V(A)
+5V(A)
0V(SIG)
0V(SIG_2)
-15V(A)
CON302
HARWIN
M20-973
2
RLY300B
NEC
EB2-5NU
ANNOTATION
-15V(A)
+15V(A)
FROM SHEET 6
PRE_OUT_L
1
PRE_OUT_R
ISSUE
L943C3
Page 9
Transformer Specification for 115/230V 50/60Hz mains transformer (for audio).
Arcam Part Number L916TX.
To standards BS415 / EN60065 / Class I / EN60742 / UL506.
All solid copper leadout wires to be insulated and colour coded with UL
PVC105°C sleeving.
Material Safety Specification
---------------------------------------------------
1. Winding Wire to be Grade 2 (130°C rating) to BS 60317-4 1995.
2. Mylar Polyester Insulator Rated to 130°C.
Electrical Specification
---------------------------------------------------
3. Transformer to have dual 115V primaries to allow parallel operation for 115V
input and series operation with 230V input.
4. Transformer input voltage range as follows:
115V -15% +15% (97.5V to 132.5V)
230V -15% +15% (195V to 265V)
5. Transformer to have 2 high-power secondary windings as shown in the
adjacent drawing.
6. Loaded DC voltages specified at 230V AC in (with transformer primaries in
series).
7. Centre-tapped secondary windings to have a full wave (4 diode) bridge to
produce dual polarity DC rails; high power winding output voltage to comply to
test specifications given (see Test Circuit and Test Specifications at right).
8. Windings to be evenly spaced with minmal gaps; magnetic radiation should be
minimised.
9. Max core flux density 1.5T at nominal rating (referred to M4 core material; see
14 below).
10. Core must not saturate at 20% over nominal primary voltage.
11. Temperature rise to be less than 60°C at 30% duty cycle (referred to 230V
input voltage and On-Load current).
Mechanical Specification
---------------------------------------------------
12. Primary wires self-ended and individually sleeved, then sleeved together.
Secondary wires self-ended and individually sleeved. Low power secondary
centre tap to share common sleeve. Use PVC sleeving.
13. Primary/Secondary leadout separation to be minimised.
14. Product is for hi-fi audio; hum must be minimised.
15. All wire lengths are +20, -0 mm. All wires stripped 8 +/-2mm and tinned.
TOP VIEW
B: 125mm max
(may have 5mm 'bulge' for leadouts & sleeves)
A: 55mm max
DRAWING NOT TO SCALE
330MM
230MM
HIGH POWER SECONDARIES
17Vac WINDINGS
3.2Vac WINDING
PRIMARIES
SCREEN WIRE
120MM
140MM
160MM
LEADS EXIT NEAR TOP
PRIMARY
115V ac
115V ac
SECONDARY
GREY
BLUE
BLACK
ORANGE
GREEN
* - wire diameter at least 0.4mm
BLACK
WHITE
BLUE
ORANGE
BLUE
ORANGE
WHITE
WHITE
GREEN/YELLOW
Interwinding Screen
17Vac @ 100mA*
17Vac @ 100mA*
3.2Vac @ 55mA*
GREY
BLACK + WHITE
BLUE
TEST CIRCUIT
GBU8D 8A 200V
+
+
6800uF
63V
6800uF
63V
+Vout
Load
-Vout
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
TEST SPECIFICATIONS
Input Voltage (series primaries) 230V 265V
On-Load Current
6.0A
Min On-Load Trough Voltage 41 +1.5/-0 V
Off-Load Current Max Off-Load Peak Voltage
-
6.0A
-
100mA
63V
DiVA A80 Power Transformer
Filename:
Notes:
Contact Engineer:
L916TX_1.0.Sch
Contact Tel: (01223) 203 200Travis Pierce
OUTPUT WAVEFORM
(Approximate Test Circuit DC output voltage with ripple)
+Vout
Peak Voltage
Trough Voltage
0V (Black + White)
03_E059 Production Issue
ECO No. DESCRIPTION OF CHANGE
TGP 21 Feb 03 1.0
INITIALS
Printed:
DATE
21-Feb-2003
1 1Sheet of
DRAWING NO.
ISSUE
L916TX
Page 10
Transformer Specification for 100V 50/60Hz mains transformer (for audio).
Arcam Part Number L917TX.
To standards BS415 / EN60065 / Class I / EN60742 / UL506.
All solid copper leadout wires to be insulated and colour coded with UL
PVC105°C sleeving.
Material Safety Specification
---------------------------------------------------
1. Winding Wire to be Grade 2 (130°C rating) to BS 60317-4 1995.
2. Mylar Polyester Insulator Rated to 130°C.
Electrical Specification
---------------------------------------------------
3. Transformer to have dual 100V primaries to allow parallel operation with 100V
input.
4. Transformer input voltage range as follows:
100V -15% +15% (85V to 115V)
5. Transformer to have 2 high-power secondary windings as shown in the
adjacent drawing.
6. Loaded DC voltages specified at 100V AC in (with transformer primaries in
parallel).
7. Centre-tapped secondary windings to have a full wave (4 diode) bridge to
produce dual polarity DC rails; high power winding output voltage to comply with
test specifications given (see Test Circuit and Test Specifications at right).
8. Windings to be evenly spaced with minmal gaps; magnetic radiation should be
minimised.
9. Max core flux density 1.5T at nominal rating (referred to M4 core material; see
14 below).
10. Core must not saturate at 20% over nominal primary voltage.
11. Temperature rise to be less than 60°C at 30% duty cycle (referred to 100V
input voltage and On-Load current).
Mechanical Specification
---------------------------------------------------
12. Primary wires self-ended and individually sleeved, then sleeved together.
Secondary wires self-ended and individually sleeved. Low power secondary
centre tap to share common sleeve. Use PVC sleeving.
13. Primary/Secondary leadout separation to be minimised.
14. Product is for hi-fi audio; hum must be minimised.
15. All wire lengths are +20, -0 mm. All wires stripped 8 +/-2mm and tinned.
TOP VIEW
B: 125mm max
(may have 5mm 'bulge' for leadouts & sleeves)
A: 55mm max
DRAWING NOT TO SCALE
330MM
230MM
HIGH POWER SECONDARIES
17Vac WINDINGS
3.2Vac WINDING
PRIMARIES
SCREEN WIRE
120MM
140MM
160MM
LEADS EXIT NEAR TOP
PRIMARY
100V ac
100V ac
SECONDARY
GREY
BLUE
BLACK
ORANGE
GREEN
* - wire diameter at least 0.4mm
BLACK
WHITE
BLUE
ORANGE
BLUE
ORANGE
WHITE
WHITE
GREEN/YELLOW
Interwinding Screen
17Vac @ 100mA*
17Vac @ 100mA*
3.2Vac @ 55mA*
GREY
BLACK + WHITE
BLUE
TEST CIRCUIT
GBU8D 8A 200V
+
+
6800uF
63V
6800uF
63V
+Vout
Load
-Vout
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
TEST SPECIFICATIONS
Input Voltage (parallel primaries) 100V 115V
On-Load Current
6.0A
Min On-Load Trough Voltage 41 +1.5/-0 V
Off-Load Current Max Off-Load Peak Voltage
-
6.0A
-
100mA
63V
100V DiVA A80 Power Transformer
Filename:
Notes:
Contact Engineer:
L917TX_1.0.Sch
Contact Tel: (01223) 203 200Travis Pierce
OUTPUT WAVEFORM
(Approximate Test Circuit DC output voltage with ripple)
+Vout
Peak Voltage
Trough Voltage
0V (Black + White)
03_E118
ECO No. DESCRIPTION OF CHANGE
TGP 17 April 03 1.0
INITIALS
Printed:
DATE
17-Apr-2003
PRODUCTION RELEASE
1 1Sheet of
DRAWING NO.
ISSUE
L917TX
Page 11
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