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C315
1u/50/5mm
R324
1M
F
R316
182KF
MR+
1
Vcc
2
gnd
3
PFI
4
PFO
5
nc
6
RST
7
RST
8
U304
MAX707CSA
P1.5
6
p1.6
7
P1.7
8
RST
9
RxD
10
TxD
11
P3.2
12
P3.3
13
P3.4
14
P3.5
15
P3.6
16
P3.7
17
XTAL2
18
XTAL1
19
GND
20
P2.0
21
P2.1
22
P2.2
23
P2.3
24
P2.4
25
P2.5
26
P2.6
27
P2.7
28
PSEN
29
ALE
30
EA
31
P0.7
32
P0.6
33
P0.5
34
P0.4
35
P0.3
36
P0.2
37
P0.1
38
P0.0
39
Vcc
40
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
U301
AT89C51ED2-3CSC
rst
/rst
pfi
pf
i
fppmu
pfail
fpps
t
fppdo
fppdi
fppclk
dgnd
dgnd
dgnd
dgnd
dgnd
dgnd
dgnd
dgnd
mpfi
mfppi
bfppdo
bfppst
bfppclk
bfppdi
smute
1/g
1
1a1
2
2y4
3
1a2
4
2y3
5
1a3
6
2y2
7
1a4
8
2y1
9
gnd
10
2a1
11
1y4
12
2a2
13
1y3
14
2a3
15
1y2
16
2a4
17
1y1
18
2/g
19
vcc
20
U306
74HCT244
R306
47RJ
R307A
47RJ
R307B
47RJ
R307C
47RJ
R307D
47RJ
bblkst
k0
k1
k2
pclk
pdat
vfdrw
vfdrs
vfde
5vs
VolA
m
p
u
blkst
RemRx
VolB
ps
tb
0
ps
tb
1
Vfd0
Vfd1
Vfd2
Vfd3
Vfd4
Vfd5
Vfd6
Vfd7
5vs
q1
1
q2
2
q3
3
q4
4
q5
5
q6
6
q7
7
gnd
8
q'h
9
/sclr
10
sck
11
rck
12
/g
13
ser
14
q0
15
vcc
16
U303
74HC595
5vs
dgnd
pfail
fppi
fppdi
fppmu
blkst
fppst
fppclk
fppdo
K304
Key
K305
Key
K306
Key
K314
Key
K315
Key
K322
Key
K323
Key
K324
Key
K325
Key
5vs
dgnd
pstb0
pdat
dgnd
pclk
5vS
k0
k1
k2
Vfd0
Vfd1
Vfd2
Vfd3
Vfd4
Vfd5
Vfd6
Vfd7
Vfde
Vfdrw
Vfdrs
q1
1
q2
2
q3
3
q4
4
q5
5
q6
6
q7
7
gnd
8
q'h
9
/sclr
10
sck
11
rck
12
/g
13
ser
14
q0
15
vcc
16
U302
74HC595
C301 100nZ
dgnd
5vs
C302 100nZ
dgnd
pdat
pstb1
pclk
/pon
trig1
trig2
Vfdrst
fppi
A
B
C
V701
encode
R711
10KJ
R712
10KJ
R713
1K2J
R714
1K2J
C709
10nK
C710
10nK
Bdgnd
b5vs
bVolA
bVolB
X301
18.432M
C316
22pJ
C317
22pJ
dgnd
dgnd
p
oweron
g
i
r
t
n
i
g
i
r
t
trig1 out
trig3 out
/pon
vfdrst
dgnd
dgnd
from psu
16vu
1.25v at power fail-->
16vu
dgnd
5vs
volume control
TP1
T.P.(NI)
dgnd
5vs
IR receiver
R321
10RJ
C320
470nZ
dgnd
5vs
dgnd
5vs
C308
100nZ
dgnd
IR input/output
RemRx
to AUD board
C311
10u/50/5mm
5vs
dgnd
C306
100nZ
dgnd
C307
100nZ
dgnd
12vt
Q303
DTC114
1
2
D301
Blue/Amber
dgnd
R317
270RJ
R318
470RJ
5vs
LED as
Amber=standby,
Blue=on
dgnd
dgnd
1
2
3
4
5
6
CON702
6pin to CON602
ir1 out
ir2 out
ir in
pclk
pdat
vfdrw
vfdrs
vfde
k00 search down
k01 preset down
k02 display
k03 FM mute
k04 audio
k05 ext 7.1
k06 tape mon
k10 search up
k11 preset up
k12 memory
k13 AM/FM
k14 video
k15 surround mode
k25 levels
k20 spkr A(power)
k21 spkr B
k22 tone controls
k23 tone defeat
k24 digital audio
k25 levels
Q311
DTA114
5vs
a1
1
b1
2
y1
3
a2
4
b2
5
y2
6
gnd
7
y3
8
a3
9
b3
10
y4
11
b4
12
a4
13
vcc
14
U305
74HC132
gnd
1
Vcc
2
rst
3
RS
4
R/W
5
E
6
d0
7
d1
8
d2
9
d3
10
d4
11
d5
12
d6
13
d7
14
M301
20T202DA1(J)
poweron
D
1
G
2
V
3
U307
HS0038B4
dgnd
5vs
1
2
3
4
5
6
7
8
9
R326
8X10k
*
*
5vS
k0
k1
k2
R328
100RJ
R329
100RJ
C318
22nK
C314
22nK
dgnd
dgnd
PADS JP1.1 and JP1.2 of M301 are linked . Pin3=/Reset
chassis1
chassis2
C752
100nZ
C751
100nZ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CON311
14pin
5vs
rst
R371
47KJ
D371
5V6
dgnd
5vs
pon
pon
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
s2
s1
17
18
19
20
21
22
23
24
CON301
24pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
s2
s1
17
18
19
20
21
22
23
24
CON304
24pin
dgnd
dgnd
rst
dgnd
dgnd
smute
dgnd
dgnd
dgnd
dgnd
dgnd
dgnd
K320
Key
trig2 out
tgnd
mreset
mreset
mpfi
mfppi
bfppdi
bumte
dgnd
dgnd
dgnd
dgnd
12vt
tgnd
bfppdo
bfppst
bfppclk
bblkst
PCB31
HS4-M15_B008V3_0_0-FPP.sch
Sub board(Encoder Board)
ir
dgnd
5vs
dgnd
Vfd0
Vfd1
Vfd2
Vfd3
Vfd4
Vfd5
Vfd6
Vfd7
Vfde
Vfdrw
Vfdrs
vfdrst
5vs
dgnd
1
2
3
4
5
6
7
8
CON321
8pin from CON722
b16vu
b5vs
b12vt
bpoweron
bdgnd
btgnd
1
2
3
4
5
6
7
8
CON722
8pin to CON321
b16vu
b5vs
b12vt
bpoweron
bdgnd
btgnd
bVolA
bVolB
VolA
VolB
1
1
2
2
U311
IR SHELL
dgnd
R325
100KJ
5vs
C333
22nK
dgnd
chassis3
C334
22nK
dgnd
chassis4
C335
22nK
dgnd
chassis5
C336
22nK
dgnd
chassis6
C337
22nK
dgnd
chassis7
C338
22nK
dgnd
chassis8
C339
22nK
dgnd
chassis9
C741
22nK
bdgnd
C742
22nK
bdgnd
chassis12
PCB71
HS4-M15_B008V3_0_0-ENC
Q312
DTA114
fpprxd
fpptxd
sh/ld
1
clk
2
d4
3
d5
4
d6
5
d7
6
q
7
gnd
8
q
9
ser
10
d0
11
d1
12
d2
13
d3
14
clkinh
15
vcc
16
U312
74HC165
dgnd
5vs
dgnd
pstb0
pclk
dgnd
blkst
dgnd
dgnd
dgnd
dgnd
dgnd
dgnd
trig
mpublkst
C340
100nZ
dgnd
5vs
fpp232/sc232
fpprxd
fpptxd
5vs
fpp232/sc232
dgnd
dgnd
dgnd
/fpppsen
/fpppsen
R372
47RJ
need TEST Q312 voltage
2.FRONT PANEL CIRCUIT DIAGRAM
3-15
Summary of Contents for M15 C/AH
Page 24: ...WIRING DIAGRAM 3 13 ...