EN-23
ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No. DESCRIPTION OF CHANGE
L279 CT4 MCU.SchDoc
SYS009 - Main PCB Top Level
Contact Engineer:
L279CT
21/08/2020
INITIALS
Printed:
4 5Sheet of
Notes:
Contact Tel: (01223) 203207Peter Kuell
A & R Cambridge Ltd.
Pembroke Avenue
Cambridge CB25 9QR
Waterbeach
A3
ARCAM
DAC PSU EN
3W CLK
3W DATA
3W 4104 CS*
RS232 RX
RS232 TX
ENC A
ENC B
STBY RED
IR IN FP
GREEN LED
WHITE LED
DEBUG CLK2
DEBUG DATA2
SCL
SDA
SCL SUE
SDA SUE
HOST IRQ
DAC RES*
DAC GPIO
IP DET
DAC PSU EN
SUE PSU EN
RG15
1
RA5
2
RE5
3
RE6
4
RE7
5
RC1
6
RC2
7
RC3
8
RC4
9
RG6
10
RG7
11
RG8
12
RG9
16
RA0
17
RE8
18
RE9
19
RB5
20
RB4
21
RB3
22
RB2
23
RB6/PGEC2
26
RB7/PGED2
27
RA9
28
RA10
29
RB8
32
RB9
33
RB10
34
RB11
35
RA1
38
RF13
39
RF12
40
RB12
41
RB13
42
RB14
43
RB15
44
RD14
47
RD15
48
VBUS
51
VBUS3V3
52
D-
54
D+
55
RF3/USBID
56
RF2
57
RF8
58
RA2
59
RA3
60
RA4
61
RF4
64
RF5
65
RA14
66
RA15
67
RD9
68
RD10
69
RD11
70
RD0
71
RC13
72
RC14
73
RD1
76
RD2
77
RD3
78
RD12
79
RD13
80
RD4
81
RD5
82
RF0
85
RF1
86
RG1
87
RG0
88
RA6
89
RA7
90
RE0
91
RE1
94
RG14
95
RG12
96
RG13
97
RE2
98
RE3
99
RE4
100
RB1/PGEC1
24
RB0/PGED1
25
IC400A
PIC32MZ2048EFG100-I/PF
FLASH MOSI
FLASH MISO
FLASH SCLK
FLASH CS*
VERSION
USB_N
USB_P
+3V3 MCU
DGND
MCU
0W062
R401
33R
0W062
R403
33R
0W062
R404
33R
16V
C411
100N
AVA TRST*
AVA READY
AVA BOOTMODE
0W063
R424
10K
0W063
R427
10K
USB ID
+3V3 MCU
DGND
DAC RES*
SUE PSU EN
SCL SUE
SDA SUE
AVA TRST*
AVA BOOTMODE
SCL
SDA
DAC GPIO
SPDIF INT0
SPDIF INT1
SPDIF INT0
SPDIF INT1
SPDIF TX RES*
SPDIF TX RES*
3W 4104 CS*
3W CLK
3W DATA
HOST IRQ
AVA READY
SPDIF RES*
SPDIF RES*
DAC MUTE*
DAC MUTE*
SCAN1
SCAN2
SCAN3
NF
NF
DGND
MCLR*BLUE ICD pin 6
YLW ICD pin 5
GRN ICD pin 4
RED ICD pin 3
BLACK ICD pin 2
MCLR
VDD
VSS
PGC
PGD
0W063
R400
10K
DEBUG
DEBUG CLK2
DEBUG DATA2
1
2
3
4
5
6
M20-973
CON400
HARWIN
DGND
16V
C407
100N
0W063
R422
10R
+3V3 MCU
DGND
DGNDMCLR*
VSS
13
VDD
14
MCLR*
15
AVDD
30
AVSS
31
VSS
36
VDD
37
VSS
45
VDD
46
RC12/OSC1
49
RC15/OSC2
50
VSS
53
VDD
62
VSS
63
VDD
74
VSS
75
VDD
83
VSS
84
VSS
92
VDD
93
IC400B
PIC32MZ2048EFG100-I/PF
50V
C410
33P
50V
C409
33P
DGND
GND
GND
X400
12MHz
+3V3 MCU
16V
C408
100N
DGND
DGND
16V
C417
470UF
16V
C413
10N
16V
C418
100N
16V
C414
10N
16V
C415
10N
16V
C419
100N
16V
C420
100N
16V
C421
100N
16V
C422
100N
16V
C423
100N
16V
C416
10N
+3V3 MCU
FLASH CS*
FLASH SCLK
FLASH MOSI
FLASH MISO
DGND
+3V3 MCU
0W063
R431
10K
+3V3 MCU
STORAGE FLASH
0W063
R429
10K
+3V3 MCU
SO/SIO1
2
/CS
1
SI/SIO0
5
/WP/SIO2
3
SCK
6
VCC
8
/HOLD/SIO3
7
VSS
4
IC403
SST26VF064B-104I/SM
+3V3 MCU
DGND
16V
C427
100N
DGND
DGND
DGND
TX 232
RX 232
RS232 RX
RS232 TX
DGND
RS232
500mA
L400
600R@100MHz
DGND
1
2
3
4
5
6
7
8
9
L103
CON403
SUNG NAM ELECTRONICS Co LTD
+3V3 MCU
+3V3 MCU
50V
NPO
C431
100P
50V
NPO
C432
100P
CHASSIS
16V
C424
100N
16V
C425
100N
16V
C426
100N
16V
C428
100N
16V
C429
100N
50V
C400
15P
50V
C402
15P
50V
C404
15P
DGND
STBY RED
GREEN LED
WHITE LED
+3V3 MCU
DGND
NF
VERSIONSCL
SDA
SCL SUE
SDA SUE
0W062
R417
4K7
0W062
R418
4K7
0W062
R419
4K7
0W062
R420
4K7
0W063
R407
0R0
0W063
R421
0R0
SCAN1
SCAN2
SCAN3
1
2
3
4
M20-973
CON406
HARWIN
1
2
3
4
M20-973
CON407
HARWIN
DGND
SDA
SCL
1
2
3
4
M20-973
CON404
HARWIN
NF NFNF
1
2
3
4
M20-973
CON405
HARWIN
NF
1
2
3
4
M20-973
CON408
HARWIN
DGND
NF
SCL SUE
SDA SUE
FLASH CS*
FLASH SCLK
FLASH MOSI
FLASH MISO
+3V3
HOST IRQ
DGND
3W CLK
3W DATA
3W 4104 CS*
DGND
ENC2 A
ENC2 B
HP PRES
STBY KEY
HP PRES
DIG PSU EN
DIG PSU EN
AN PSU EN
AN PSU EN
IP DET
ENC A
ENC B
IR IN
STBY RED
GREEN LED
WHITE LED
SCAN1
SCAN2
SCAN3
ENC2 B
ENC2 A
STBY KEY
ENC SW
ENC SW
ENC SW
RS232 TX FP BUF
RS232 RX FP
RS232 TX FP
RS232 RX FP
DISP PSU EN
DISP PSU EN
LCD PSU EN
LCD PSU EN
MCLR FP*
MCLR FP*
ENC2 A
ENC A
ENC2 B
ENC B
0W063
R416
10K
0W063
R415
10K
0W063
R414
10K
0W063
R413
10K
0W063
R412
10K
0W063
R411
10K
0W063
R410
10K
0W063
R409
10K
2 4
1
IC401A
74LVC1G125
GND
3
VCC
5
IC401B
74LVC1G125
+3V3 STBY
DGND
16V
C412
100N
IR IN FP
DGND
+3V3 MCU
+3V3 MCU
AVATAR MUTE OUT*
AVATAR MUTE OUT*
C1+
1
V+
2
C1-
3
C2+
4
C2-
5
V-
6
T2OUT
7
R2IN
8
R2OUT
9
T2IN
10
T1IN
11
R1OUT
12
R1IN
13
T1OUT
14
GND
15
VCC
16
STATIC PROTECTED
SO16 WIDE
IC402
MAX3232CPW
SPDIF EN*
DAC EN*
SPDIF EN*
DAC EN*
SPDIF EN*
DAC EN*
0W063
R426
10K
0W063
R425
10K
DGND
0W063
R402
100R
0W063
R405
100R
0W063
R406
100R
0W063
R423
100R
0W063
R408
10K
IP DET
16V
C433
10N
16V
C434
10N
16V
C436
10N
16V
C435
100N
RS232 RX FP
RS232 TX FP
+3V3 MCU
+3V3 STBY
19_E022 PK 19/07/19 Initial release C.0
19_E030 PK 17/09/19 ES release D.0
+3V3
19_E010 PK 22/11/19
I2C pull up to non standby 3.3, Add RS232 CN pin
E.0
+3V3 ETH
NF
NF
NF
NF
500mA
L401
600R@100MHz
DGND
NF
RS232 TX FP
RS232 RX FP
0W063
R432
0R0
0W063
R433
0R0
RS232 TX FP DBUG
RS232 RX FP DBUG
RS232 TX FP DBUG
RS232 RX FP DBUG
NF
NF
1
2
3
4
M20-973
CON409
HARWIN
USB_N
USB_P
DGND
USB MCLK
USB LRCLK
USB BCLK
USB SDATA
USB audio removed
+5V STBY
+5V STBY
0W063
R430
0R0
NF
RESET*
RESET*
20_E026 PK 30/03/20 AC PRES replaced with RESET*, add 232 buffer, add DISP PSU EN 1.0
2 4
1
IC404A
74LVC1G125
GND
3
VCC
5
IC404B
74LVC1G125
RS232 TX FP BUF RS232 TX FP
DGND
DGND
16V
C401
100N
NF
+3V3 STBY
NF
20_E035 PK 13/08/20 None to this sheet 2.0
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