NAD C427 - FPP and FPP Encode Board Circuit Diagrams

5VF
3V3F
C202
22u/6v3
C203
100N
DGND
C209
100N
1G
1
A1
2
1Y1
18
A2
4
1Y2
16
A3
6
1Y3
14
A4
8
1Y4
12
VCC
20
GND
10
2G
19
B1
11
2Y1
9
B2
13
2Y2
7
B3
15
2Y3
5
B4
17
2Y4
3
U206
74ACT244
DGND
5VF
C205
100n
DGND
DGND
F-
1
F-
2
BK1
4
LAT1
5
CLK1
6
SI1
7
VH
9
VH
10
GND
11
GND
12
CIG128X32
F-
3
NC
8
VDD
13
BKG
14
LATG
15
CLKG
16
SIG
17
SOG
18
NC
19
SI2
20
CLK2
21
LAT2
22
BK2
23
F+
26
F+
27
F+
28
U203
CIG128X3201
VFD BK1
VFD LAT1
VFD CLK1
VFD SI1
VFD BK2
VFD LAT2
VFD CLK2
VFD SI2
VFD BKG
VFD CLKG
VFD SIG
8VD
R248
10K
R250
10K
VFPEN
Q204
DTC114EKA
DGND
G
DS
M201
APM2301
C230
220U/16V
C228
22U/10V
DGND DGND
8VF
VF-
VF+
60VF
R227
470R
C210
100N
DGND
C221
100N
DGND
MCLR/VPP/RE3
1
RA0/AN0/C12IN0-
2
RA1/AN1/C12IN1-
3
RA2
4
RA3
5
RA4
6
RA5/HLVDIN
7
VSS
8
OSC1/CLKIN/RA7
9
OSC2/CLKOUT/RA6
10
RC0
11
RC1
12
RC2
13
RC3/SCK/SCL
14
RC4/SDI/SDA
15
RC5/SDO
16
RC6/TX/CK
17
RC7/RX/DT
18
VSS
19
VDD
20
RB0/INT0/FLT0/AN12
21
RB1/INT1
22
RB2/INT2
23
RB3/AN9
24
RB4/KBI0
25
RB5/KBI1/PGM
26
RB6//KBI2/PGC
27
RB7/KBI3/PGD
28
U205
PIC18F26K20
DGND
C204
100N
R203
22k
3V3F
DGND
PGCLK
PGDATA
1
2
3
4
5
CON201
ICSP
MCLR
VFD BK1
VFD BKG
VFD CLKG
VFD SIG
VFD LAT1
VFD CLK1
VFD SI1
R204
10k
R205
220k
DGND
60VF
C206
100N
D201
3V6
3V3F
DGND
R207B
120R
R207C
120R
R207D
120R
R207A
120R
R209B
120R
R209C
120R
R209D
120R
R209A
120R
VFD BK2
VFD LAT2
VFD CLK2
VFD SI2
R214B
120R
R214C
120R
R214D
120R
R214A
120R
DGND
VSI
VCLK
VSTB
1G
1
A1
2
1Y1
18
A2
4
1Y2
16
A3
6
1Y3
14
A4
8
1Y4
12
VCC
20
GND
10
2G
19
B1
11
2Y1
9
B2
13
2Y2
7
B3
15
2Y3
5
B4
17
2Y4
3
U209
74LCX244
DGND
C207
100n
DGND
DGND
R219B
120R
R219C
120R
R219D
120R
R219A
120R
DGND
FPCLK
FPMOSI
VFMISO
KEYMISOa
VFSTBa
KEYSTBa
IRFa
VSI
VCLK
VSTB
R235
10k
R208
100R
/oe
1
a
2
gnd
3
y
4
vcc
5
U208
AHC1G125
DGND
C208
100n X7R
DGND
R222
100R
R228
100R
R221
100R
1a
1
3y
2
2a
3
gnd
4
2y
5
3a
6
1y
7
vcc
8
U210
NC7NZ34
3V3F
DGND
3V3F
C224
22u/6V3
G
1
OUT
2
IN
3
O
4
U211
ASM1117-5
DGND
C222
100n
C223
100U/25V
5VF
8VD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
J201
Header 24
8VD
Q201
2SC1815
R236 560R
C226
2.2U/10V
C225
22u/6V3
3V3F
D202
1SS352
3V3F
1
2
3
4
CON202
NC
DGN
D
C229
220U/16V
DGND
3V3F
DGND
DGND
DGND
DGND
R201
100R
IRF
R210
0R
R211
0R
R212
0R
R213
0R
R215
120R
ENCA
ENCB
ENCAa
ENCBa
R234
100R
C219
330P
dgnd
R233 100R
C218
330P
dgnd
R232 100R
C214
330P
dgnd
R229
100R
C220
330P
dgnd
DGND
R255
10KJ
R258
10KJ
R254
1K2J
R259
1K2J
C234
10nK
C237
10nK
DGND
C236
100N
C235
100N
A
B
A
B
DGND
K207
Preset
K203
Display
K206
AM/FM
K202
Mute/Mode
SH/LD
1
CLK
2
E
3
F
4
G
5
H
6
QH
7
GND
8
QH
9
SER
10
A
11
B
12
C
13
D
14
CLK INH
15
VCC
16
U212
HC165
DGND
DGND
C227
100n
DGND
DGND
KEY_SCK
KEY_STB
KEY_MISO
3V3S
DGND
K205
Memory
K201
Blend
K204
Power
R237
10k 5%
R238
10k 5%
R239
10k 5%
R240
10k 5%
R241
10k 5%
R242
10k 5%
R243
10k 5%
Power ON
D
1
G
2
V
3
U201
TSOP34838
R202
10R
C201
47U/16
KEY_SCK
KEY_STB
KEY_MISO
ENCA
ENCB
3V3S
3V3S
3V3S
3V3S
3V3S
C245
47u/80v
R260
10K
R261
47R
0.5W
Q205
2SC1815
Q206
2SC3303
C232
1N
DGND
D207
1N4148
R262
150R
C231
1N
DGND
0.5W
R263
1K2
DGND
D206
9V1
DGND
D208
1N4148
R268
47K
R267
22K
D209
5V6
DGND
C244
100N
DGND
VF+
VF-
D205
1N4148
R264
1K2
C240
10U/25V
R265
0R
R266
0R
C243
10U/10V
1
2
3
4
8
7
65
9
10
T201
VFD TR
C241
1
0U
/25V
C242
100N
60VF
3V3S
Power ON
Q203
2SC1815
Q207
2SC1815
Q202
2SA1015
R245
1K
R244
1K
R252
10K
R253
10K
R251
10K
R256
10K
R257
10K
3V3S
D717
3LED
DGND
DGND
Red
Blue
Amber
1
2
3
4
5
6
USB
C400
0.1UF
C405
0.1UF
DGND
DGND
R2508
10KJ
ENC_Enter
ENC_Enter_1
3V3S
A
1
C
2
B
3
4
4
5
5
7
7
6
6
V201
EC11E15244G1
DGND
1
2
3
4
CON208
CON-4
ENC_Enter_1
ENC_Enter
DGND
VUSB
USB_DM
USB_DP
4
3
2
1
CON203
CON-4
4
3
2
1
CON204
CON-4A
D2002
1SS352
2.FPP BOARD VM2.0 AND FPP ENCODE BOARD VM2.0
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