Arcam CD72, CD92 Schematic
Service Manual
CD72/92
DiVA CD72, CD92
Compact Disc Player
Issue 1.0
ARCAM
Contents List
!
Contents list
!
Circuit description
!
Upgrade procedure
!
Service guide
!
Circuit diagrams
!
Component overlays
!
Circuit board parts list
!
General assembly parts list
CD72/CD92 Circuit Description
SUMMARY
The Main PCB for the DiVA CD72/92 player may be built as
two different versions:
! With all components fitted for the Alpha CD72
(L887RS)
! With audio components and connectors omitted, for
use as a motherboard for plug-in DAC module L816
(L888RS) for CD92
The CD72 version may be converted for use with a upgrade
plug-in DAC board by removing a configuration connector.
The system is based on a Sony kit, comprising CDM14-5BD10
laser mechanism & loader, micro-controller and fluorescent
display.
The PCM 1716, as per the 1710, can be operated in either
Software or Hardware mode. The default for the CD72 is
hardware mode.
Power Supplies & Reset/Mute
Selection for 230V or 115V mains operation is made by
inserting a fuse into the appropriate position. The mains
transformer has three secondary windings:
1. Provides +12V and -12V supplies for the audio
output circuitry via regulators Z204 and Z205.
2. This produces the digital, motor drive and
fluorescent display grid supplies:
+7.3V (Z206) Mechanism and motor driver supply
+5V (Z208) General digital logic supply
+5V (Z207) Supply to DAC
+5V (Z203) Supply to system clock generator
-30V (Z209) Display grid voltage.
3. Provides an AC supply for the display filament.
The power-on reset signal XRST is generated by R17 and C29.
When the power switch is turned off one of its poles discharges
C29 quickly. This, along with the AMUTE signal from the
micro, controls the output mute transistors via level shifter Q3.
Remote Control/PIC Micro
The PIC micro controller converts the RC-5 format data into the
NEC format required by the Sony micro. The PIC also controls
the configuration of the digital filter/DAC on the DAC board.
Micro controller & Display Board
The system micro controller Z212 has the following functions:
! Control of the mechanism & decoder on the CDM14
! Control of mute, attenuation and deemphasis for the
DAC
! Direct drive of the fluorescent display
! Remote control decoding
! Keyboard scanning
The keyboard scanning works by connecting the keys to a
resistor ladder on an ADC input to the micro. Pressing a key
presents a unique voltage to this input.
The remote control data contains a ‘ Customer Code’ that
identifies this as an Arcam product. The diode network D291 to
D297 configures the micro to accept this code.
Motor Driver
The status of the drawer is indicated to the micro by two micro
switches ‘ INSW’ and ‘ OUTSW’ on SK205. The micro controls
the drawer motor via driver Z210.
DAC & System Clock
The DAC is a Burr Brown PCM1716. Mute, attenuation and deemphasis functions can be controlled via a 3-wire serial link
from the system micro to pins 26, 27 & 28 via resistors R31 R32
& R33 respectively. Currently resistors R31 to R33 are not
fitted and the DAC is configured for hardware control.
Digital audio is input on pins 1, 2 & 3 in standard Sony format,
i.e. Word Clock, Bit Clock and Data.
The system clock is based around 16.9344 MHZ crystal X1 and
transistor Q2. This produces a stable clock with low jitter.
Z202E & D provide amplification and buffering to the DAC.
Analogue Filters
Z1A (& Z101A) provides the basis for a 2-pole filter. Z1B (&
Z101B) buffer the audio and set the output level.
Digital Output
An SPDIF format digital output signal is generated by the
decoder on the mechanism assembly. This is passed through
isolating transformer T202 to a single phono socket SK5.
Optical digital output via Z2 is also tapped off the digital output
signal. Power is supplied to Z2 via Z3 a 78L05 regulator.
Upgrade to CD92
The CD72 includes a configuration PCB connected to PL1. This
provides power to the DAC and clock generator, connects the
digital audio and system clock signals to the DAC and provides
additional clock buffering with Z4 A&B .
Removing this board removes these connections and allows the
system clock generated on the DAC board to pass through to the
CDM14.
Upgrading a CD72 to CD92
1. Disconnect the mains supply from the DiVA CD player.
2. Remove the top cover by taking out the 2 screws from the top edge of the rear
panel (marked 1) and on each side (marked 2).
3. Pull off the sticky plastic gasket between the digital output socket and the
audio output sockets to reveal the 4 audio output socket holes through which
the DAC board sockets will pass.
4. Any remnants of adhesive can be removed by rubbing it gently with your
finger and rolling it off. We do not recommend the use of solvents.
5. Fit the 2 supplied PCB (printed circuit board) pillars to the holes in the main
board on either side of the flexfoil coming from the display board. These are
marked 3 on the drawing overleaf. The big end of the PCB pillars goes into
the main PCB. These push in and clip home. Take great care not to damage
the main circuit board.
6. Remove the Configuration Module (the small vertically mounted PCB in the
centre of the main board). It will not be needed once the new DAC board is
fitted.
7. Note: The original nickel plated audio output sockets are no longer connected
after the upgrade and cannot be used. However the digital output still
functions.
8. Remove the following jumpers :- PL2, PL3, PL4, PL6. Fit the following
jumpers :- PL5, PL7.
9. Fit the magnetic shielding plate, by peeling off one side of (E923MC the
adhesive pad) and stick to (E922MC the shielding plate). Then peel the
backing off the other side of pad & Align the top edge with the top of the
transformer and fit centrally. It MUST align with the top edge of the
transformer, if it is fitted to low to the board it may cause shorting.
10. Take static precautions first. With the aluminium extrusion of the DAC
module uppermost fit the flexfoils from the module in to the appropriate
sockets in the main board, ensuring they are pushed fully home. If they are
not pushed fully home, the unit may not read discs. You may find it helps to
slide the module into the unit so that the audio output sockets fit through the
holes in the rear panel and angle the module slightly upwards to achieve this.
11. Push the module down firmly on to the support pillars.
12. Fit the supplied screws with integral washers to the 3 points marked 4 on the
drawing overleaf to secure the module in place. The 2 slightly shorter screws
and the shake proof washers should be fitted to the 2 points marked 6.
13. Refit the top cover, connect the unit to live mains and switch on. Press load to
allow the tray to come fully out and then remove the mains lead from the unit.
Remove the draw front and fit the new draw front with the CD92 / HDCD
logo on.
14. Check the unit functions correctly and if you have an HDCD disc check that a
red glow is seen behind the display window when it is playing.
Upgrading a CD72 ( TEXT ) to CD92 ( TEXT )
1. Disconnect the mains supply from the DiVA CD player.
2. Remove the top cover by taking out the 2 screws from the top edge of the rear
panel (marked 1) and on each side (marked 2).
3. Pull off the sticky plastic gasket between the digital output socket and the
audio output sockets to reveal the 4 audio output socket holes through which
the DAC board sockets will pass.
4. Any remnants of adhesive can be removed by rubbing it gently with your
finger and rolling it off. We do not recommend the use of solvents.
5. Fit the 2 supplied PCB (printed circuit board) pillars to the holes in the main
board on either side of the flexfoil coming from the display board. These are
marked 3 on the drawing overleaf. The big end of the PCB pillars goes into
the main PCB. These push in and clip home. Take great care not to damage
the main circuit board.
6. Note: The original nickel plated audio output sockets are no longer connected
after the upgrade and cannot be used. However the digital output still
functions.
7. Set the main board jumper settings as listed below :-
PL200 ON
PL201 ON
PL202 ON
PL203 OFF
PL204 ON
PL205 OFF
PL300 2 and 3
PL400 OFF
PL401 OFF
PL402 OFF
8. Fit the magnetic shielding plate ( part no E922MC ) to the adhesive pad ( part
no E923MC).
Peel the backing off the other side of the mains transformer. Align the top
edge with the top of the transformer and fit centrally.
9. Take static precautions first. With the aluminium extrusion of the DAC
module uppermost fit the flexfoils from the module in to the appropriate
sockets in the main board, ensuring they are pushed fully home. If they are
not pushed fully home, the unit may not read discs. You may find it helps to
slide the module into the unit so that the audio output sockets fit through the
holes in the rear panel and angle the module slightly upwards to achieve this.
10. Push the module down firmly on to the support pillars.
11. Fit the supplied screws with integral washers to the 3 points marked 4 on the
drawing overleaf to secure the module in place. The 2 slightly shorter screws
and the shake proof washers should be fitted to the 2 points marked 6.
12. Refit the top cover, connect the unit to live mains and switch on. Press load to
allow the tray to come fully out and then remove the mains lead from the unit.
Remove the draw front and fit the new draw front with the CD92 / HDCD
logo on.
13. Check the unit functions correctly and if you have an HDCD disc check that a
red glow is seen behind the display window when it is playing
3
2
2
1
4
6
CD72 / CD92 Service Guide
Fault diagnostics
Fault Action
No power Check mains fuse
Check power supply rails
No Audio output Check for digital output, if ok then
check power supply voltages
Check DAC chip
Intermittent noise on output Check Dac chip
Fails to respond to commands Check supply to remote circuit
Check remote flex foil cable
Check for +4.9volts on RX201 o/p
Fails to read disc Check mech supply
Check clock signal
Laser optic moves to end stop
position
No Display Check filament voltage 3.1vac
Spurious display readout Check for dry joints on display board
Power supply test points
Position Voltage
DGND 0 volts
PL6 +12 volts
PL3 -12 volts
R65 +11 volts
Z206 o/p +7.3 volts - mech supply
Z207 o/p +5 volts - DAC supply
Z208 o/p +5 volts
Z209 o/p -30 volts
SK291 across pins 1 and 32 3.1 volts AC – display filament
Hints & tips
!
When upgrading from CD72 to CD92 remember to fit the steel plate to the transformer, this
reduces noise.
!
The CDM14 mech ( part no. B2009 ) is interchangeable between the Alpha7 series and the
DiVA CD72/92 non text version.
!
Please note that the CD72/92 TEXT units use a different mech ( part no. B2012 ), the display
and main boards are also different and therefore are not interchangeable parts.
!
Voltage conversion 230/115VAC by changing the internal fuse position and fitting the correct
rated fuse. 100VAC requires a different transformer.
Caused by failure of clock signal to
the mech
Check mech supply
Check clock signal
Check flex foil cable
Check for dry joints on micro and
display
7654321
LK1
LK2
D
C
LINK10NP
LK11
LINK10NP
LK21
LINK10NP
LK31
LINK10NP
LK41
LINK10NP
LK51
LINK10NP
LK61
LINK10NP
LK71
LINK10NP
LK81
LINK10NP
LK91
LINK10NP
LK108
LINK10NP
PCB
L NK10NP
LK119
L NK10NP
LK22
L NK10NP
LK42
L NK10NP
LK52
L NK10NP
LK62
L NK10NP
LK72
L NK10NP
LK82
L NK10NP
LK92
L NK10NP
LK109
L NK10NP
PCB
L887PB_2
B
TL1
TOOL NG3 0
LK3
LINK10NP
LK13
LINK10NP
LK23
LINK10NP
LK33
LINK10NP
LK43
LINK10NP
LK53
LINK10NP
LK63
LINK10NP
LK73
LINK10NP
LK83
LINK10NP
LK93
LINK10NP
LK110
LINK10NP
DD2
A2 Vertical
Paper Marker
DD_A2V
DD3
A2 Horizontal
Paper Marker
DD_A2H
LK4
L NK10NP
LK120
L NK10NP
LK44
L NK10NP
LK54
L NK10NP
LK64
L NK10NP
LK74
L NK10NP
LK94
L NK10NP
LK111
L NK10NP
Links
DD5
PCB MATERIAL
CEM1, 2 OZ Cu
CEM1_20Z
Documentation
TL3
TOOLING3.0
Tooling Holes & Alignment Marks
F4
T160MASP
Spare Fuse
LK5
LINK10NP
LK15
LINK10NP
LK25
LINK10NP
LK35
LINK10NP
LK55
LINK10NP
LK65
LINK10NP
LK75
LINK10NP
LK85
LINK10NP
LK95
LINK10NP
TL4
TOOLING3.0
LK6
L NK10NP
LK16
L NK10NP
LK46
L NK10NP
LK56
L NK10NP
LK118
L NK10NP
LK76
L NK10NP
LK86
L NK10NP
LK96
L NK10NP
PS
Photo Strip
PHOTO_STR P
A2
Update Box
UPDATE_BOX
TL5
TOOLING3.0
EL1
LCD CHA R
LK7
LINK10NP
LK17
LINK10NP
LK37
LINK10NP
LK47
LINK10NP
LK57
LINK10NP
LK67
LINK10NP
LK77
LINK10NP
LK87
LINK10NP
LK97
LINK10NP
EL2
LCD CHA R
LK8
L NK10NP
LK18
L NK10NP
LK28
L NK10NP
LK38
L NK10NP
LK58
L NK10NP
LK68
L NK10NP
LK78
L NK10NP
LK88
L NK10NP
LK98
L NK10NP
TL6
TOOL NG_OPT
LK9
L NK10NP
LK19
L NK10NP
LK29
L NK10NP
LK39
L NK10NP
LK49
L NK10NP
LK59
L NK10NP
LK69
L NK10NP
LK79
L NK10NP
LK89
L NK10NP
LK99
L NK10NP
FD_1
FIDUCIAL
FD_3
FIDUCIAL
LK10
LINK10NP
LK130
LINK10NP
LK30
LINK10NP
LK40
LINK10NP
LK50
LINK10NP
LK60
LINK10NP
LK70
LINK10NP
LK80
LINK10NP
LK90
LINK10NP
LK107
LINK10NP
LK117
LINK10NP
FD_2
F DUCIAL
FD_4
F DUCIAL
LK133
LINK10NP
LK135
LINK10NP
LK126
L NK10NP
LK127
LK121
L NK10NP
L NK10NP
LK122
L NK10NP
LK123
L NK10NP
LK124
L NK10NP
LK125
L NK10NP
LK132
LINK10NP
LK136
LINK10NP
Alpha 7 CD Configuration Plug
SK2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
DIL16 HSKT
R67
47R MF
L887C3_2
L887C3_2 SCH
L887C2_2
L887C2_2 SCH
INOUT
F LA
F LB 4MHZ
Z4A
1 2
74HC14
+
C1000
10U EL
C58
100N CD
DEEM
SMUTE
AMUTE
RM N
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
LD N
LDOUT
Z4B
3 4
74HC14
14
Z4G
7
74HC14
R68
330R MF
L887C4_2
L887C4_2 SCH
DEEM
SMUTE
AMUTE
RMIN
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
LD N
LDOUT
4MHZ
Z4C
5 6
74HC14
K0
K1
K0
K1
F LB
F LA
NOUT
Z4D
74HC14
Ground decoupling
Z4E
89
74HC14
8
D
C
B
1011
Z4F
1213
74HC14
FOR ROS PROGRAMME INCLUDE A7 FOR ALPHA 7 CD
A
1 2 3 4 5 6 7 8
DRAWING TITLE
CD72, CD92 Project Sheet
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Notes
Filename
G:\DATA\ECO\ECO AGENDA\00 1093 L887PB 2\L887 2\L887 2.ddb - L887c1 2.prj
Circuit Diagram
00_1093 2
00_1083
-
ECO No.
Date Printed
CW 11-10-00 TRACKS MOVED TO CLEAR P LLARS & C64 ADDED FOR EMC
CL 15-09-00 EARTH L NK 8M101 ADDED 1.1
CL 03-08-00 PRODUCTION RELEASE 1
CL 13-07-00 REVISIONS B
WF 07-04-00 A
INITIALS
DAT E
NEW PROTOTYPE
Drawn by:
CW12-Oct-2000
DESCRIPTION OF CHANGE
1 4Sheet of
DRAWING NO.
L887C1_2
A
ISSUE
7654321
JP2001JUMPER
1
2
O
10R FU
+
1M0 25V
O
R64
P7V
C43
PL5
2WVERTJUMPER
D2000
1N4003F
D2002
1N4003F
R39
220R MF
R47
1K8 MF
R46
1K8 MF
R40
220R MF
PL3
2WVERTJUMPER
P11V CLK
Z207
LM317T
I
Vin
+
C51
1M0 25V
GND5VDAC
TP1
JP2002
JUMPER
1
2
PL6
2WVERTJUMPER
JUMPER
JP2005
1
2
D14
1N4003F
Vout
ADJ
A
+
C38
100U 25V ZA EL
O
TP6
D2003
1N4003F
TP5
P12V
+
C49
470U EL 25V
+
C50
470U EL 25V
N12V
P12V
N12V
R43
330R MF
R42
1K0 MF
AC1
AC
AC2
P11V
DAC Supply
+5V
D22
1N4003F
D23
1N4003F
P5VDAC
+
C46
22U SILMIC
R37 10R FU
12
LK2000
10MM L NK
R48
10R FU
C33
+
1M0 25V
P12V
N12V
P5V DAC
P5V
RLYV
+
C56
47U EL 35V
Z208 7805
I
Vin
HS2A
TO220HS08REG
P11V
Power connector to DAC PCB
GND
G
D16
SW201B
4
5
T201
L866TX
10
F LAC
12
1
2
7
6
4
5
9
SW201D
A1014
6
A1014
MOLEXPW R4
ACAUDG
ACAUD1
16
17
ACAUD2
18
ACDIG1
11
AC1
AC
AC2
13
ACDIG2
ACDIG3
15
SK3
1
3
D4
UF4003
D6
UF4003
D8
UF4003
D10
UF4003
2
4
DGND
AGND
D5
UF4003
D7
UF4003
D9
UF4003
D11
UF4003
+
SW201C
A1014
19
20
F LASW
D12
1N4003F
R58 10R FU
+
C34
100U EL 100V
N35V
I
Vin
Z209
7915
SK1
LIVE
3N3 MAINS
TOOLING4.
6U8H RADIAL
EC3
LNE
C67
C69
10N CD
TL10
3N3 MA NS
SK6
3
2
1
MOLEXPW R6
C68
D
L6
C
FILB
B
FILA
ET1
NEL
EARTH LEAD
NEUT
L7
6U8H RADIAL
6
5
4
F2
T250MA115V
115V units only
F1
T160MA
230V units only
FILB
F LA
EARTH LEAD
8M101
NEUT2
115V
230V
R51 22R FU
R52
22R FU
10
115V
230V
11
R44 1R0 FU
C44
1M0 35V
+
C45
1M0 35V
R45
1R0 FU
9
8
7
P11VSW
+
C36
3M3 EL
(25V)
G
GND
P22VUN
C47
1M0 35V
N22VUN
TO220HS30REG
D17
15V 400MW
PL2
2WVERTJUMPER
PL7
2WVERTJUMPER
Z206
LM1086-ADJ
I
Vin
HS1
O
Vout
JP2000
JUMPER
1
PL4
+
2WVERTJUMPER
+
C48
1M0 35V
JUMPER
JP2003
1
2
1
ADJ
A
+
C35
100U EL 100V
+
2
2
JP2004
JUMPER
D13
1N4003F
Vout
330R MF
C37
10U EL
N30V
I
Z205
LM337T
I
R38
Z204
LM317T
O
Vin
Vin
P11V
R41
1K6 MF
R53
33K MF
D18
7V5 400MW
N30V
1N4003F
Vout
ADJ
A
+
C39
100U EL
+
C40
100U EL
A
ADJ
Vout
D15 1N4003F
R65 10R FU
CDM14 Supply
+7.3V
P7V
D2001
1N4003F
TP7
Vout
SK204
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FFC23V
O
HS
P5VP5V DAC
TP2TP3 TP4
+
C42
100U EL
P5V
C54
10N CD
8
PD1
PAD300/4.1
CGND2
D
C
B
Z210
LB1641
GND1O/P 'In'
2
3
4V7 400MW
LOAD NINSW
SK205
8K2005
1
2
LOADOUT
3
LOAD N
4
GND
5
INSW
OUTSW
Motor Ground
DRAWING TITLE
CD72, CD92 CD Players
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Notes
Filename
G:\DATA\ECO\ECO AGENDA\00 1093 L887PB 2\L887 2\L887 2.ddb - L887c2 2.sch
Circuit Diagram
POWER SUPPLIES
00_1083
-
ECO No.
Date Printed
TRACKS MOVED TO CLEAR P LLARS & C64 ADDED FOR EMC00_1093 2CW 11-10-00
CL 15-09-00 EARTH L NK 8M101 ADDED 1.1
CL 03-08-00 PRODUCTION RELEASE 1
CL 13-07-00 REVISIONS B
WF 07-04-00 A
INITIALS
DAT E
NEW PROTOTYPE
Drawn by:
CW12-Oct-2000
DESCRIPTION OF CHANGE
2 4Sheet of
DRAWING NO.
L887C2_2
A
ISSUE
OUTSW
Bias4LoadIn5LoadOut6Vcc7Vcc
C32
10N CD
D19
LOADOUT
O/P 'Out'
8
9
10
C41
100U EL
P7V
+
C55
10N CD
LDOUT
A
1 2 3 4 5 6 7 8
LDIN
INOUT
R55
1K2 MF
7654321
8
D
Flex connector from CDM14 mech
SK201
ADATA
FFC23V
23
22
SUBQ
21
SENSE
20
XLT
19
LDON
33P CD
18
P5V
17
16
15
DIGOUT
14
13
XRST
12
AMUTE
11
SQCK
10
SCOR
9
DATA
8
CLK
7
BCLK
6
ADATA
5
LRCK
4
WDCK
3
2
1
WDCK 17MHZ
P7V
LRCK
C304
1N0 CD
ADATA
BCLK
P11V CLK
R49
68R MF
Z202B
74HCU04
Z202C
74HCU04
1 2 3 4 5 6 7 8
SCLK
FOK
GFS
C
BCLK
LRCK
B
A
C14
17MHZ
SMUTE
XRST
TP8
TP9
TP10
34
56
WD
R16
C60
22P CD
C59
22P CD
I
+
C26
100U EL
12
74HCU04
L4
33UH AX
330R MF
22P CD
Vin
Z202A
C12
10N CD
C61
P5V DAC(A7)
R23
120R MF
LK66
1 2
10MM L NK
P5V DAC
LRCK
ADATA
BCLK
C66
10P CD
Vout
GND
Z203
78L05
G
C25
22U EL OS
C24
+
100U EL
P5V DAC(A7)
D L16 VPLG
O
PL1
+
10MM L NK
10N CD
XRST
SCOR
SQCK
SCOR
SQCK
XRST
A7DAC5V
C28
LK12
10MM LINK
R66
220R MF
LK105
10MM LINK
10MM L NK
1 2LK106
23
22
CS/IWO
XLT
LDON
SUBQ
SENSE
LDON
XLT
SENSE
SUBQ
1N4148
D24
21
19
20
RST
ZERO
Vcc2L
DEEM
LK14
1 2
DEEM
SMUTE
AMUTE
DEEM
SMUTE
AMUTE
CLK
RMIN
PGML
DATA
RMIN
PGML
CLK
DATA
1N0 PP
1 2
PGML
CLK
DATA
1 2
R31 330R MF
R32 330R MF
R33 330R MF
24
25
27
28
ML/IIS
Q_13 Q_16 Q_17
MUTE
MODE
MD/DM026MC/DM1
LRCIN1DIN2BCKIN3CLKO4XTI5XTO6DGND7Vdd8Vcc2R9AGND2R10EXT1R11NC12VOUTR13AGND1
Q_14 Q_15
R25
12
34
56
78
910
1112
1314
1516
17MHZ
C301
74HCU04
R1
120R MF
R62 220R MF
P5VCLK
TP14
14
Z202G
16.9344MHZ
7
X1
C13
33P CD
120R MF
8 9
Z202F
74HCU04
Z202D
74HCU04
TP11
17MHz
1213
C11
680P PP
Analogue ground
R57
330R MF
C17 to be as close as possible
to Q2 collector
R19
33K MF
R18
33K MF
100P CD
L2
33UH AX
+
18
EXTL
AGND2L
+
C15
100P CD
C16
C23
100U EL
C22
100U EL
R60
10K MF
SK203
+
FFC32V
10U EL
C31
R24
10R FU
VOUTL
15
16NC17
Z201
Vcc
VOUTL
Q_18
14
VOUTR
DACGND
C20
680P PP
10 11
Z202E 74HCU04
R35
4M7 MF
330R MF
C17
10N CD
Q2
BC547B
C10
1N0 CD
R21
1K0 MF
HDCD
RB3
RB1
RB2
PMUTE
RB7
RB6
RB5
RB4
RB0
DIGOUT
DEEM
SMUTE
RA0
WD
LRCK
XRST
AMUTE
ADATA
12345678910111213141516171819202122232425262728293031
Data connector to DAC PCB
L5
33UH AX
R2
3K3 MF
PCM1716#
R102
3K3 MF
R56
1N3 PP
AUDGND
C21
10U NP
C103
1N3 PP
D21
1N4148
C3
3K3 MF
R4
3K3 MF
R104
P5V
R17
10K MF
22R MF
XRST
+
R3
1K6 MF
C302
470P PP
1K6 MF
470P PP
R20
C29
100U EL
R103
C303
1
C2
470P PP
D1
1N4148
SW201A
A1014
PMUTE
2
3
R5
3K3 MF
C102
470P PP
2
3
R105
3K3 MF
PMUTE
10K MF
BC547B
Z1A
NJM2114
Z101A
NJM2114
R34
Q6
LEFT1
1
RIGHT1
1
Analogue Ground
P5V
10K MF
2
3
Q5
BC547B
DRAWING TITLE
R28
10K MF
CD72, CD92 CD Players
Circuit Diagram
DAC & Audio outputs
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Notes
Filename
G:\DATA\ECO\ECO AGENDA\00 1093 L887PB 2\L887 2\L887 2.ddb - L887c3 2.sch
BCLK
R6
3K3 MF
2K2 MF
R106
3K3 MF
R30
D3
1N4148
D2
1N4148
R7
R107
2K2 MF
17MHZ
P12V
32
R9
6K8 MF
Z1B
6
5
NJM2114
Analogue Ground
R109
6K8 MF
6
5
R14
10K MF
Q4
BC547B
R70
470R FU
DIGOUT
Z101B
NJM2114
680R MF
Q3
BC557B
-
ECO No.
Date Printed
I
+
C9
100U EL
DIGOUT
7
R309
680R MF
10U CERAFINE
7
R310
P12V
R29
560R MF
R15
10K MF
00_1083
Z3
78L05
Vin
O
Vout
GND
G
22U EL
C30
+
P5VTOS
22U EL OS
R22
390R MF
1K5 MF
R36
P5V TOS
C8
R69
8k2 MF
C1
+
10N CD
DIGOUT_TX
T202
1
2
1
2
3
4
Z2
TOTX173
Gnd
Radj
Vcc
Vin
DIGOUTP
5
GND
RFB011T
SK5
PHONO1
EMC
CGND1
4
3
DIGOUTN
SCRN
CGND1
SK4
PHONO2HG
EMC
C64
100N CD
C65
1N0 CD
84
C19
10N CD
CGND3
680P PP
C7
680P PP
C4
10U CERAFINE
+
C104
+
R110
22K MF
C27
10U EL
+
R26
68K MF
R10
22K MF
R13
1K2 MF
D20
C18 10N CD
R11
120R MF
R111
120R MF
R113
1K2 MF
ROUT
R112
22R MF
Q101
FST239
R12
22R MF
Q1
FST239
C5
1N0 PP
C105
1N0 PP
L1
7F003
LOUT
L
R
1
P12V
84
Z1C
4V7 400MW
Mute
TP13
NJM2114
N12V
Z101C
NJM2114
N12V
TRACKS MOVED TO CLEAR P LLARS & C64 ADDED FOR EMC00_1093 2CW 11-10-00
CL 15-09-00 EARTH LINK 8M101 ADDED 1.1
CL 03-08-00 PRODUCTION RELEASE 1
CL 13-07-00 REVISIONS B
WF 07-04-00 A
INITIALS
DAT E
NEW PROTOTYPE
Drawn by:
CW12-Oct-2000
DESCRIPTION OF CHANGE
3 4Sheet of
DRAWING NO.
L887C3_2
D
C
EMCPHONO2
SH1
B
C6
A
ISSUE
7654321
8
SK291
FFC32V
P5V
FILA
INOUT
D
C
LDIN
LDOUT
DEEM
SMUTE
AMUTE
4MHZ
RMIN
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
SMUTE
DEEM
R63
33K MF
4MHZ
RMIN
PGML CLK DATA
INOUT
LDIN
LDOUT
DEEM
TP12
DEEM
SMUTE
AMUTE
AMUTE
4MHZ
RM N
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
P5V
R291 3R3 FU
C291
47N CD
N30V
K1
K0
C292
100U EL
+
C293
47N CD
LDIN
65
30
66
40
67
50
68
60
69
70
70
80
71
72
73
74
75
76
77
78
79
80
LDOUT
SCOR
RM N
Flexfoil connector to Display PCB
1011121314151617181920212223242526272829303132
20
64
30
40
50
60
70
80
-30v
+5V
+5V
+5V
+5V
LOADIN
LOADOUT
SCOR
SEL2
SEL1
P1P3P4
10
P6P8P9
P10
P12
P14
P15
P2
P5
P7
P11
Q_9
Q_6
Q_8
Q_5
Q_7
P15
62
106320
57
NC58NC59NC60NC61NC
P10
P11
P12
P13
P14
2040506070
P13
10
51
P1052P1153P1254P1355P1456P15
TIMER1RMIN2+5V3NC4NC5M/C6POML7CLK8SENSE9DATA10SQCK11SUBQ12NC13AMUTE14LDON15XLT16NC17R1118R1219R1320R1421KEY022KEY123KEY2
Q_
Q_2
SUBQ
SQCK
DATA
SENSE
CLK
PGML
Q_4
LDON
AMUTE
R295
10K MF
Q_3
R294 1K0 MF
XLT
R296
10K MF
30
R297
10K MF
80
Q_10
P1P2P3P4P5P6P7P8P9
42
P143P244P345P446P547P648P749P850P9
SMUTE
DEEM
XTAL
EXTAL
IN/OUTSW
AF ADJ
24
K1M
K0M
R298
10K MF
123456789
NC41NC
NC
RO4
RO3
RO2
RO1
VSS
RST
+5V
+5V
KEY3
8K2 MF
R11
R12
R13
R14
Q_11
R71
FILB
Z212
Comment
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
R61
8K2 MF
K1
K0
Q_12
R4
R3
R2
R1
SMUTE
DEEM
R292
8K2 MF
R293 8K2 MF
D25
1N4148
HDCD
HDCD
P5V
X201
CST4.00
4MHZ
XRST
NOUT
C294
47N CD
REMIN
C62
100P CD
R1
R2
R3
R4
P5V
RA0
RA0
AMUTE
DEEM
RMIN
XRST
REM
R27
100K MF
R50
100K MF
R54
330R MF
R59
4MHZ
330R MF
R11
D291
1N4148
D294
1N4148
D295
1N4148
D292
C0' C1' C3'
1N4148
C4'
C0
17
18
1
2
3
4
R12
Z211
PIC16C54XT
RA0
RA1
RA2
RA3
RTCC
MCLR
OSC1
16
D293
1N4148
D296
C2
1N4148
D297
C7
1N4148
6
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
VSS
OSC2
5
15
R13
R14
RB0
7
8
9
10
RB4
11
12
13
VDD
P5V
14
+
C53
22U EL OS
RB1
RB5
RB2
RB6
RB3
RB7
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
D
C
C70
B
R301
33K MF
SW301 SW302 SW303 SW304 SW305 SW306 SW307 SW308
NEXT PREV FF FR PAUSE STOP PLAY OPEN
R302
12K MF
SBX1610-52
R303
5K6 MF
RX201
+5V
+
LED201
A
LED ULTRARED
Alpha 8 only
C71
10U EL
C52
10N CD
GND Case
1
R304
3K3 MF
3
R300
10R MF
2
O/P
R305
2K2 MF
REM1
R306
1K5 MF
DIS5V
KEYGND
R307
1K2 MF
R308
8K2 MF
C57
10N CD
R313
8K2 MF
DISGND
HDCD1
1 2 3 4 5 6 7 8
100N CD
KEYGND
DISP301
B1008
VF1VF
DRAWING TITLE
CD72, CD92 CD Players
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
> ||
DISC
SHUFFLE
2
3
D80
D80
804P155P146P13
DP14
DP15
D70
D60
P1297010P11116012P1013P9145015P8164017P718P6
7
8
D70
DP12
DP13
D50
D40
D30
D20
88
-88 8888
P5213022P4232024P325P2261027P1
19
20
D60
D50
D40
DP8
DP9
DP10
DP11
D10
DP15
DP10
DP11
DP12
DP13
DP14
D30
DP4
DP5
DP6
DP7
DP4
DP5
DP6
DP7
DP8
DP9
28
29
D20
D10
DP1
DP2
DP3
DP1
DP2
DP3
12345678910111213141516171819202122232425262728293031
SK301
FFC32H
00_1083
Notes
Filename
G:\DATA\ECO\ECO AGENDA\00 1093 L887PB 2\L887 2\L887 2.ddb - L887c4 2.sch
Circuit Diagram
Microcontroller & Display
- WF 07-04-00 A
ECO No.
Date Printed
VF30VF
31
+
C72
10U EL
32
CL 15-09-00 EARTH L NK 8M101 ADDED 1.1
CL 03-08-00 PRODUCTION RELEASE 1
CL 13-07-00 REVISIONS B
INITIALS
DAT E
DISGND
TRACKS MOVED TO CLEAR P LLARS & C64 ADDED FOR EMC00_1093 211-10-00C W
NEW PROTOTYPE
Drawn by:
CW12-Oct-2000
R314
220R MF
LED301
LED GREEN3.1MM
DESCRIPTION OF CHANGE
4 4Sheet of
DRAWING NO.
L887C4_2
B
A
ISSUE
7654321
LK1
LK2
D
C
L NK10NP
LK11
LINK10NP
LK21
LINK10NP
LK31
LINK10NP
LK41
LINK10NP
LK51
LINK10NP
LK61
LINK10NP
LK71
LINK10NP
LK81
LINK10NP
LK91
LINK10NP
LK108
LINK10NP
PCB
LINK10NP
LK119
LINK10NP
LK22
LINK10NP
LK42
LINK10NP
LK52
LINK10NP
LK62
LINK10NP
LK72
LINK10NP
LK82
LINK10NP
LK92
LINK10NP
LK109
LINK10NP
PCB
L887PB_2
B
TL1
TOOLING3.0
LK3
L NK10NP
LK13
L NK10NP
LK23
L NK10NP
LK33
L NK10NP
LK43
L NK10NP
LK53
L NK10NP
LK63
L NK10NP
LK73
L NK10NP
LK83
L NK10NP
LK93
L NK10NP
LK110
L NK10NP
DD2
A2 Vertical
Paper Marker
DD_A2V
DD3
A2 Horizontal
Paper Marker
DD_A2H
LK4
LINK10NP
LK120
LINK10NP
LK44
LINK10NP
LK54
LINK10NP
LK64
LINK10NP
LK74
LINK10NP
LK94
LINK10NP
LK111
LINK10NP
Links
DD5
PCB MATERIAL
CEM1_20Z
Documentation
TL3
TOOL NG3 0
Tooling Holes & Alignment Marks
F4
T160MASP
Spare Fuse
LK5
LINK10NP
LK15
LINK10NP
LK25
LINK10NP
LK35
LINK10NP
LK55
LINK10NP
LK65
LINK10NP
LK75
LINK10NP
LK85
LINK10NP
LK95
LINK10NP
CEM1, 2 OZ Cu
TL4
TOOLING3.0
LK6
L NK10NP
LK16
L NK10NP
LK46
L NK10NP
LK56
L NK10NP
LK118
L NK10NP
LK76
L NK10NP
LK86
L NK10NP
LK96
L NK10NP
PS
Photo Strip
PHOTO_STR P
A2
Update Box
UPDATE_BOX
TL5
TOOLING3.0
EL1
LCD CHAIR
LK7
LINK10NP
LK17
LINK10NP
LK37
LINK10NP
LK47
LINK10NP
LK57
LINK10NP
LK67
LINK10NP
LK77
LINK10NP
LK87
LINK10NP
LK97
LINK10NP
EL2
LCD CHAIR
LK8
L NK10NP
LK18
L NK10NP
LK28
L NK10NP
LK38
L NK10NP
LK58
L NK10NP
LK68
L NK10NP
LK78
L NK10NP
LK88
L NK10NP
LK98
L NK10NP
TL6
TOOLING_OPT
LK9
L NK10NP
LK19
L NK10NP
LK29
L NK10NP
LK39
L NK10NP
LK49
L NK10NP
LK59
L NK10NP
LK69
L NK10NP
LK79
L NK10NP
LK89
L NK10NP
LK99
L NK10NP
FD_1
FIDUCIAL
FD_3
FIDUCIAL
LK10
LINK10NP
LK130
LINK10NP
LK30
LINK10NP
LK40
LINK10NP
LK50
LINK10NP
LK60
LINK10NP
LK70
LINK10NP
LK80
LINK10NP
LK90
LINK10NP
LK107
LINK10NP
LK117
LINK10NP
FD_2
FIDUCIAL
FD_4
FIDUCIAL
LK133
LINK10NP
LK135
LINK10NP
LK126
L NK10NP
LK127
LK121
L NK10NP
L NK10NP
LK122
L NK10NP
LK123
L NK10NP
LK124
L NK10NP
LK125
L NK10NP
LK132
LINK10NP
LK136
LINK10NP
Alpha 7 CD Configuration Plug
SK2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
D L16 HSKT
R67
47R MF
L888C3_1
L888C3_2 0 SCH
L888C2_1
L888C2_2 0 SCH
NOUT
FILA
FILB 4MHZ
Z4A
1 2
74HC14
+
C1000
10U EL
C58
100N CD
DEEM
SMUTE
AMUTE
RMIN
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
LD N
LDOUT
Z4B
3 4
74HC14
14
Z4G
7
74HC14
R68
330R MF
L888C4_1
L888C4_2 0 SCH
DEEM
SMUTE
AMUTE
RMIN
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
LD N
LDOUT
4MHZ
Z4C
5 6
74HC14
F LB
F LA
INOUT
Z4D
74HC14
K0
K1
K0
K1
Ground decoupling
Z4E
89
74HC14
8
D
C
B
1011
Z4F
1213
74HC14
FOR ROS PROGRAMME INCLUDE A7 FOR ALPHA 7 CD
A
1 2 3 4 5 6 7 8
DRAWING TITLE
CD92 Main Board
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
CD92 MA N BOARD
Notes
Filename
J:\FILES\L-ELECT\PCB complete packages\L888 CD92\L888 1.ddb - L888c1 2.0.prj
Circuit Diagram
Project sheet
00_1107
ECO No.
Date Printed
CW 06-10-00 PRODUCTION RELEASE 2 0
INITIALS
26-Oct-2000
DAT E
Drawn by:
CW
DESCRIPTION OF CHANGE
1 4Sheet of
DRAWING NO.
L888C1
A
ISSUE
P5VP5V DAC
TP2TP3 TP4
+
C42
100U EL
P5V
C54
10N CD
8
PD1
PAD300/4.1
CGND2
D
C
B
7654321
JP2001JUMPER
1
2
O
10R FU
+
1M0 25V
O
R64
P7V
C43
PL5
2WVERTJUMPER
D2000
1N4003F
D2002
1N4003F
R39
220R MF
R47
1K8 MF
R46
1K8 MF
R40
220R MF
PL3
2WVERTJUMPER
P11V CLK
Z207
LM317T
I
Vin
+
C51
1M0 25V
GND5VDAC
TP1
JP2002
JUMPER
1
2
PL6
2WVERTJUMPER
JUMPER
JP2005
1
2
D14
1N4003F
Vout
ADJ
A
+
C38
100U 25V ZA EL
O
TP6
TP5
+
+
C50
470U EL 25V
N12V
D2003
1N4003F
P12V
P12V
C49
470U EL 25V
AC1
AC2
N12V
DAC Supply
+5V
R43
330R MF
R42
1K0 MF
AC
P11V
D22
1N4003F
D23
1N4003F
P5VDAC
+
C46
1M0 25V
R37 10R FU
12
LK2000
10MM L NK
R48
10R FU
C33
+
1M0 25V
P12V
N12V
P5V DAC
P5V
RLYV
+
C56
47U EL 35V
Z208 7805
I
Vin
HS2A
TO220HS08REG
P11V
Power connector to DAC PCB
GND
G
D16
2
2
JP2004
JUMPER
D13
1N4003F
Vout
330R MF
C37
10U EL
N30V
I
Z205
LM337T
I
R38
Z204
LM317T
O
P22VUN
SK1
LIVE
L6
6U8H RADIAL
IEC3
LNE
C67
3N3 MA NS
C69
10N CD
TL10
TOOL NG4.1
3
2
1
C68
3N3 MA NS
SK6
MOLEXPW R6
D
C
FILB
B
FILA
ET1
NEL
EARTH LEAD
NEUT
L7
6U8H RADIAL
6
5
4
F2
T250MA115V
115V units only
F1
T160MA
230V units only
F LB
FILA
EARTH LEAD
8M101
NEUT2
115V
230V
R51 22R FU
R52
22R FU
10
115V
230V
11
T201
L866TX
10
F LAC
12
1
2
7
6
4
5
9
SW201D
A1014
MOLEXPW R4
16
17
ACAUD2
18
ACDIG1
11
AC1
AC
AC2
13
ACDIG2
15
19
20
ACAUDG
ACAUD1
ACDIG3
SK3
F LASW
1
3
D4
UF4003
D6
UF4003
D8
UF4003
D10
UF4003
D12
1N4003F
R58 10R FU
2
4
DGND
AGND
D5
UF4003
D7
UF4003
D9
UF4003
D11
UF4003
+
C34
100U EL 100V
N35V
I
R44 1R0 FU
+
C44
1M0 35V
+
C45
1M0 35V
R45
SW201C
A1014
+
C36
3M3 EL
Vin
Z209
7915
1M0 35V
1R0 FU
N22VUN
2WVERTJUMPER
9
8
7
P11VSW
TO220HS30REG
(25V)
D17
15V 400MW
G
GND
Vout
C47
I
HS1
JP2000
JUMPER
1
PL4
+
2WVERTJUMPER
+
C48
1M0 35V
JUMPER
JP2003
1
2
PL2
2WVERTJUMPER
1
PL7
Z206
LM1086-ADJ
Vin
ADJ
A
+
C35
100U EL 100V
+
O
Vin
Vin
P11V
R41
1K6 MF
R53
33K MF
D18
7V5 400MW
N30V
1N4003F
Vout
ADJ
A
+
C39
100U EL
+
C40
100U EL
A
ADJ
Vout
D15 1N4003F
R65 10R FU
CDM14 Supply
+7 3V
P7V
D2001
1N4003F
TP7
Vout
SK204
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FFC23V
O
HS
Z210
LB1641
GND1O/P 'In'
2
3
4V7 400MW
LOADINNSW
SK205
8K2005
1
2
LOADOUT
3
LOAD N
4
GND
5
NSW
OUTSW
Motor Ground
DRAWING TITLE
CD92 Main Board
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
CD92 MA N BOARD
Notes
Filename
J:\FILES\L-ELECT\PCB complete packages\L888 CD92\L888 1.ddb - L888c2 2.0.sch
Circuit Diagram
POWER SUPPL ES
00_1107 CW 06-10-00 PRODUCTION RELEASE 2 0
ECO No.
Date Printed
INITIALS
26-Oct-2000
DAT E
Drawn by:
CW
DESCRIPTION OF CHANGE
2 4Sheet of
DRAWING NO.
A
ISSUE
L888C2
OUTSW
Bias4LoadIn5LoadOut6Vcc7Vcc
C32
10N CD
D19
LOADOUT
O/P 'Out'
8
9
10
C41
100U EL
P7V
+
C55
10N CD
LDOUT
A
1 2 3 4 5 6 7 8
LDIN
INOUT
R55
1K2 MF
D
Flex connector from CDM14 mech
SK201
ADATA
FFC23V
P11V CLK
23
22
SUBQ
21
SENSE
20
XLT
19
LDON
18
P5V
17
16
15
DIGOUT
14
13
XRST
12
AMUTE
11
SQCK
10
SCOR
9
DATA
8
CLK
7
BCLK
6
ADATA
5
LRCK
4
WDCK
3
2
1
WDCK 17MHZ
P7V
LRCK
C304
1N0 CD
ADATA
BCLK
R49
68R MF
Z202B
74HCU04
Z202C
74HCU04
33P CD
SCLK
FOK
GFS
C
BCLK
LRCK
B
A
C14
17MHZ
SMUTE
XRST
TP8
TP9
TP10
34
56
WD
R16
C60
22P CD
C59
22P CD
I
+
C26
100U EL
12
74HCU04
L4
33UH AX
330R MF
22P CD
Vin
Z202A
C12
10N CD
C61
P5V DAC(A7)
R23
120R MF
LK66
1 2
10MM LINK
C24
100U EL
P5V DAC
LRCK
ADATA
BCLK
C66
10P CD
Vout
GND
Z203
78L05
G
C25
22U EL OS
+
P5V DAC(A7)
PL1
D L16 VPLG
O
10MM LINK
10N CD
+
XRST
SCOR
SQCK
SCOR
SQCK
XRST
A7DAC5V
C28
LK12
10MM LINK
R66
220R MF
LK105
10MM LINK
10MM L NK
1 2LK106
23
22
CS/IWO
XLT
LDON
SUBQ
SENSE
LDON
XLT
SENSE
SUBQ
1N4148
19
20
21
RST
ZERO
Vcc2L
DEEM
LK14
1 2
DEEM
SMUTE
AMUTE
DEEM
SMUTE
AMUTE
CLK
RMIN
PGML
DATA
RMIN
PGML
CLK
DATA
1N0 PP
1 2
PGML
CLK
DATA
1 2
R31 330R MF
R32 330R MF
R33 330R MF
27
28
ML/IIS
25
24
Q_13 Q_16 Q_17
MUTE
MODE
MD/DM026MC/DM1
LRCIN1DIN2BCKIN3CLKO4XTI5XTO6DGND7Vdd8Vcc2R9AGND2R10EXT1R11NC12VOUTR13AGND1
Q_14 Q_15
R25
12
34
56
78
910
1112
1314
1516
17MHZ
C301
74HCU04
R1
120R MF
R62 220R MF
P5VCLK
TP14
14
Z202G
16 9344MHZ
7
X1
C13
33P CD
120R MF
8 9
Z202F
74HCU04
Z202D
74HCU04
TP11
17MHz
1213
C11
680P PP
Analogue ground
R57
330R MF
C17 to be as close as possible
to Q2 collector
R19
33K MF
R18
33K MF
D24
+
18
EXTL
AGND2L
C15
100P CD
C16
100P CD
L2
33UH AX
+
R60
10K MF
SK203
+
FFC32V
10U EL
C31
R24
10R FU
C23
100U EL
16
15
17
NC
Vcc
VOUTL
Q_18
14
C22
100U EL
DACGND
10 11
Z202E 74HCU04
R35
4M7 MF
C17
10N CD
Q2
BC547B
R21
1K0 MF
HDCD
RB3
RB1
RB2
PMUTE
RB7
RB6
RB5
RB4
RB0
DIGOUT
DEEM
SMUTE
RA0
XRST
AMUTE
12345678910111213141516171819202122232425262728293031
L5
33UH AX
VOUTL
Z201
PCM1716#
C20
680P PP
VOUTR
R2
3K3 MF
R102
3K3 MF
1N3 PP
AUDGND
C21
10U NP
C103
1N3 PP
C3
3K3 MF
R4
3K3 MF
R104
R3
1K6 MF
C302
470P PP
R103
1K6 MF
C303
470P PP
C2
470P PP
2
3
R5
3K3 MF
C102
470P PP
2
3
R105
3K3 MF
Z1A
NJM2114
Z101A
NJM2114
P5V
D21
1N4148
R17
10K MF
22R MF
XRST
+
C29
100U EL
R20
1
D1
1N4148
SW201A
PMUTE
PMUTE
10K MF
BC547B
P5V
R34
Q6
330R MF
C10
1N0 CD
R56
2
3
A1014
R28
DRAWING TITLE
CD92 Main Board
10K MF
CD92 MA N BOARD
WD
LRCK
17MHZ
ADATA
BCLK
32
Data connector to DAC PCB
LEFT1
R9
6K8 MF
R6
1
3K3 MF
R7
2K2 MF
RIGHT1
R106
1
3K3 MF
R107
2K2 MF
Analogue Ground
R30
10K MF
D3
1N4148
D2
1N4148
Q5
BC547B
P12V
R70
470R FU
Z1B
6
5
NJM2114
Analogue Ground
R109
6K8 MF
Z101B
6
5
NJM2114
R14
10K MF
Q4
BC547B
DIGOUT
DIGOUT
680R MF
R15
10K MF
Q3
BC557B
Z3
78L05
I
Vin
+
C9
100U EL
C4
10U CERAFINE
7
R309
680R MF
C104
10U CERAF NE
+
7
R110
22K MF
R3 0
P12V
R29
560R MF
R26
68K MF
N12V
+
C27
10U EL
+
GND
G
Vout
R10
22K MF
R13
1K2 MF
22U EL
D20
GND
8
RFB011T
SK5
PHONO1
EMC
D
CGND1
C30
7654321
P5V TOS
P5VTOS
O
+
C8
22U EL OS
R22
390R MF
R36
1K5 MF
R69
8k2 MF
C1
+
10N CD
DIGOUT_TX
T202
1
2
1
2
3
4
Z2
TOTX173
Gnd
Radj
Vcc
Vin
DIGOUTP
5
4
3
DIGOUTN
SCRN
CGND1
SK4
PHONO2HG
EMC
C64
100N CD
C65
1N0 CD
84
C19
10N CD
CGND3
C6
680P PP
C7
680P PP
C
EMCPHONO2
SH1
B
A
C18 10N CD
R11
120R MF
R111
120R MF
R113
1K2 MF
ROUT
R112
22R MF
Q101
FST239
R12
22R MF
Q1
FST239
C5
1N0 PP
C105
1N0 PP
L1
7F003
LOUT
L
R
1
P12V
84
Z1C
4V7 400MW
Mute
TP13
NJM2114
N12V
Z101C
NJM2114
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
1 2 3 4 5 6 7 8
Cambridge CB5 9PB
Notes
Filename
J:\FILES\L-ELECT\PCB complete packages\L888 CD92\L888 1.ddb - L888c3 2.0.sch
Circuit Diagram
DAC & Audio outputs
00_1107 CW 06-10-00 PRODUCTION RELEASE 2 0
ECO No.
Date Printed
INITIALS
26-Oct-2000
DAT E
Drawn by:
CW
DESCRIPTION OF CHANGE
3 4Sheet of
DRAWING NO.
ISSUE
L888C3
7654321
8
SK291
FFC32V
P5V
FILA
INOUT
D
C
LDIN
LDOUT
DEEM
SMUTE
AMUTE
4MHZ
RMIN
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
SMUTE
DEEM
R63
33K MF
4MHZ
RM N
PGML CLK DATA
NOUT
LD N
LDOUT
TP12
DEEM
SMUTE
AMUTE
AMUTE
4MHZ
RMIN
PGML
CLK
DATA
SCOR
SQCK
XRST
LDON
XLT
SENSE
SUBQ
DEEM
N30V
P5V
R291 3R3 FU
C291
47N CD
K1
K0
C292
100U EL
+
C293
47N CD
LD N
65
30
66
40
67
50
68
60
69
70
70
80
71
72
73
74
75
76
77
78
79
80
LDOUT
SCOR
RMIN
Flexfoil connector to Display PCB
1011121314151617181920212223242526272829303132
20
30
40
50
60
70
80
-30v
+5V
+5V
+5V
+5V
LOADIN
LOADOUT
SCOR
SEL2
SEL1
P1P3P4
10
P2
6210632064
Q_5
Q_6
Q_7
P6P8P9
P5
Q_8
Q_9
NC58NC59NC60NC61NC
P10
P12
P14
P15
P7
P11
P15
P10
P11
P12
P13
P14
P13
2040506070
10
57
P1052P1153P1254P1355P1456P15
TIMER1RMIN2+5V3NC4NC5M/C6POML7CLK8SENSE9DATA10SQCK11SUBQ12NC13AMUTE14LDON15XLT16NC17R1118R1219R1320R1421KEY022KEY123KEY2
Q_
Q_2
SUBQ
SQCK
DATA
SENSE
CLK
PGML
Q_4
LDON
AMUTE
R295
10K MF
Q_3
R294 1K0 MF
XLT
R296
10K MF
30
R297
10K MF
80
Q_10
P1P2P3P4P5P6P7P8P9
42P143P244P345P446P547P648P749P850P951
NC41NC
SMUTE
DEEM
XTAL
EXTAL
IN/OUTSW
AF ADJ
KEY3
24
K1M
K0M
R298
10K MF
123456789
Q_11
NC
RO4
RO3
RO2
RO1
VSS
RST
+5V
+5V
R71
8K2 MF
R11
R12
R13
R14
FILB
Z212
Comment
40
39
Q_12
38
37
R4
36
R3
35
R2
34
R1
33
32
31
30
29
28
27
26
25
R61
8K2 MF
K1
K0
SMUTE
DEEM
R292
8K2 MF
R293 8K2 MF
D25
1N4148
HDCD
HDCD
P5V
X201
CST4 00
4MHZ
XRST
NOUT
C294
47N CD
REM N
C62
100P CD
P5V
R1
R2
R3
R4
RA0
RA0
AMUTE
DEEM
RMIN
XRST
REM
R27
100K MF
R50
100K MF
R54
330R MF
R59
4MHZ
330R MF
R11
D291
1N4148
D294
1N4148
D295
1N4148
D292
C0' C1' C3'
1N4148
C4'
C0
17
18
1
2
3
4
R12
Z211
PIC16C54XT
RA0
RA1
RA2
RA3
RTCC
MCLR
OSC1
16
D293
1N4148
D296
C2
1N4148
D297
C7
1N4148
6
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
VSS
OSC2
5
15
R13
R14
RB0
7
8
9
10
RB4
11
12
13
VDD
P5V
14
+
C53
22U EL OS
RB1
RB5
RB2
RB6
RB3
RB7
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
D
C
C70
B
R305
2K2 MF
REM1
O/P
Case
R304
3K3 MF
R300
10R MF
2
RX201
R303
5K6 MF
3
R301
33K MF
SW301 SW302 SW303 SW304 SW305 SW306 SW307 SW308
NEXT PREV FF FR PAUSE STOP PLAY OPEN
R302
12K MF
SBX1610-52
+5V
+
LED201
A
LED ULTRARED
Alpha 8 only
C71
10U EL
C52
10N CD
GND
1
R306
1K5 MF
DIS5V
KEYGND
R307
1K2 MF
R308
8K2 MF
C57
10N CD
R313
8K2 MF
DISGND
HDCD1
1 2 3 4 5 6 7 8
100N CD
KEYGND
DISP301
B1008
DRAWING TITLE
CD92 Main Board
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
> ||
DISC
SHUFFLE
VF1VF
3
2
804P155P146P13
D80
DP15
D80
D70
P1297010P11116012P1013P9145015P8164017P718P6
8
7
D70
DP12
DP13
DP14
D60
D50
D40
D30
D20
88
-88.8888
P5213022P4232024P325P2261027P1
20
19
D60
D50
D40
DP8
DP9
DP10
DP11
D10
DP15
DP10
DP11
DP12
DP13
DP14
D30
D20
DP4
DP5
DP6
DP7
DP3
DP4
DP5
DP6
DP7
DP8
DP9
29
28
D10
DP1
DP2
DP3
DP1
DP2
12345678910111213141516171819202122232425262728293031
SK301
FFC32H
CD92 MA N BOARD
Notes
Filename
J:\FILES\L-ELECT\PCB complete packages\L888 CD92\L888 1.ddb - L888c4 2.0.sch
Circuit Diagram
Microcontroller & Display
00_1107 CW 06-10-00 PRODUCTION RELEASE 2 0
ECO No.
Date Printed
VF30VF
31
26-Oct-2000
32
INITIALS
DAT E
+
C72
10U EL
DISGND
Drawn by:
CW
R314
220R MF
LED301
LED GREEN3.1MM
DESCRIPTION OF CHANGE
4 4Sheet of
DRAWING NO.
L888C4
B
A
ISSUE
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