Arcam DiVA CD72 Service Manual page 17

1 2
GO
GO
POWER SUPPLY
L912C7_2.0.SCH
GAIN
GAIN
D
CLK17M_3V_LATCH
CLK17M_3V_PMD200
XRST
XRST
CLOCK
L912C8_2.0.SCH
C
SK3
1
2 CLKMECH
CLKMECH
3
4 SER_CLK SER_CLK
5
SER_DIN
6 SER_DIN
7
8 SER_CH SER_CH
9
10 CLK_LATCH
11 MUTE
MUTE
12 XRST XRST CLK_PMD200
C170
13
14 10N SM
15
16 DEEMPH
DEEMPH
17
B
18 RA0
RA0
19 RB7 RB7
20 RB6
RB6
21 RB5 RB5
22 RB4 RB4
23 RB0
RB0
24 RB1 RB1
25 RB2
RB2
26 RB3 RB3
27
28
29
30 HDCDLED HDCDLED
31
32
RB[0..7]
FFC32V
DGND
EL1
Update Box
PB
UPDATE_BOX
PCB DD1
A
A3 Vertical
L912PB_2 Paper Marker
DD_A3V
DD3
DD2
PCB MATERIAL
Drilling
FR4, 1 OZ Cu
Detail
MULTI LAYER
DRILL_DWG
FR4_MULTI
1 2
3
CLK_DAC
CLK17M_5V_DAC CLK17M
CLK_LATCH
CLK_PMD200
CLK_FPGA
CLK17M_5V_FPGA
CLKMECH
CLKMECH
GO
GO
VCCD
R4 R12
10K SM 10K SM
CCLK
GO
WR
VCCD
SER_DIN
SER_CLK
SER_CH
RE-LATCH
L912C9_2.0.SCH
*
CLK17M_3V_LATCH
CLK17M_3V_PMD200
*
HDCD
HDCD
HDCDLED
HDCDLED
BCKO
WCKO
DOL
MUTE DOR
DEEMPH
GAIN
GAIN
GO
GO
VCCD VCCD
USE NF FILTER WHEN RUNNING RS
PROGRAM
23425
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
DSP HDCD
Waterbeach
PCB ID
Cambridge CB5 9PB
Filename
J:\FILES\L-ELECT\PCB complete packages\l900s\l912 New 2000 DAC\L912_2.0\L912_2.0.DDB - L912C1_2.0.prj
3
4 5
DONE
VCCD
D[0..7]
D[0..7] LDC
INTR
CCLK
GO
WR
DONE
SER_CLK
SER_DIN
FPGA
SER_CH
L912C2_2.0.SCH
R13
M2
M2 A[0..15]
10K SM
M0
M0
R28
DSP
DSP
0R0 SM
RB0
MODE0 AA[0..15]
RB6
MODE1
L[0..15]
HDCD
HDCD
MUTE
MUTE R[0..15]
CLK_FPGA
CLK17M_5V_FPGA SEL[0..2]
BCKO
BCKO A/D
WCKO
WCKO NMODE
DOL
DOL PMODE
DOR
DOR
+5VCLK
RDYO
GND
IC21
74AHC1G00 SM
CLK_DAC
FD_1 FD_2 FD_3 FD_4
FIDUCIAL FIDUCIAL FIDUCIAL FIDUCIAL
FD_5 FD_6 FD_7 FD_8
FIDUCIAL FIDUCIAL FIDUCIAL FIDUCIAL
DRAWING TITLE
9 CD DAC PCB Top
Circuit Diagram
Notes:
4 5
6 7
VCCD
C88
100N SM 28
VCC
14
GND
R144 *
22
OE/VPP
20
0R0 SM
CE
A0 10 11 D0
A0 D0
9 12
A1 D1
A1 D1
A2 8 13 D2
A2 D2
7 15
A3 D3
A3 D3
A4 6 16 D4
A4 D4
A5 5 17 D5
A5 D5
4 18
A6 D6
A6 D6
A7 3 19 D7
A7 D7
25
A8
A8
A9 24
A9
21
A10
A10
A11 23 IC31
A11
2 27C512
A12
A12
A13 26
A13
A14 27
A14
1
A15
A15
VCCD
Power ON/OFF MUTE relay
RA0
TR18
BC849B
C163
LDC +
220U EL
INTR
TR25
BC849B
R23
DONE
2K2 SM
R114
XRST
A[0..15]
100K SM
AA[0..15]
MUTERLY
AA[0..15] MUTERLY
L[0..15]
L[0..15]
R[0..15]
R[0..15]
SEL[0..2]
SEL[0..2]
THL6
A/D
TOOLING
NMODE
PMODE
THL1
R111
ASIC DAC FIXING HOLE 3.0
10R SM
L912C4_2.0.SCH
L11
10UH SM
C132
1N 0805
1
4 THL7
RDY
RDY
2 FIXING HOLE 3.0
C159
10N SM
CW 9-6-01
01_1084 CW 30-4-01 Listening component changes
01_1078 CW 1-5-01 Production release
ECO No. INITIALS DATE DESCRIPTION OF CHANGE
Drawn by:
Date Printed
Sheet 1 of
CW
28-Jun-2001
6 7
8
D
D[0..7]
RLYPWR
MUTERLY
C
TR1
BC849B
RLY_GND
THL4 THL5
B
TOOLING FIXING HOLE
THL2 THL3
FIXING HOLE 3.0 FIXING HOLE 3.0
C133 C134
1N 0805 1N 0805
THL8 THL9
FIXING HOLE 3.0 FIXING HOLE 3.0
C136 C137
1N 0805 1N 0805
2.0
A
1.1
1.0
ISSUE
8 L912CT
DRAWING NO.
8