68
FH-P404
-
Pin Functions (PD4947A)
Pin No.
Pin Name
I/O
Function and Operation
1
CE
O
Devise select output
2–4
NC
Not used
5
TESTIN
I
Test program mode input
6,7
GEQ0,1
O
Preset EQ Control output 0,1
8
SUBMUT
O
Sub Woofer mute output
9,10
NC
Not used
11
reset
I
Reset input
12
XT2
Not used
13
XT1
Connect to GND
14
VSS
GND
15
X2
Crystal oscillator connection pin
16
X1
Crystal oscillator connection pin
17
REGOFF
VDD
18
REGC
VSS
19
VDD
Power supply
20
ILMPW
O
Illumination power supply control output
21
SYSPWR
O
System power supply control output
22,23
NC
Not used
24
IPPW
O
Power supply control output for IP BUS interface IC
25
ASENBO
O
Slave power supply control output
26
AMPW
O
AM power output
27
FMPW
O
FM power output
28
mute
O
Mute output
29
NC
Not used
30,31
SUBW1,0
O
Sub woofer control output 1,0
32
FIEOUT
O
FIE ON/OFF control output
33
VCK
O
Clock output for electronic volume
34
VST
O
Strobe pulse output for electronic volume
35
VDT
O
Data output for electronic volume
36
NC
Not used
37
ANTPW
O
Antenna output
38
SD
I
SD input
Forced mono output
GND
Power supply
Not used
Dimmer select output
FL Power Output
Tape MS filter select output
Dolby NR ON/OFF select output
Cassette mechanism sub motor control output 1,2
Cassette mechanism capstan motor control output
Cassette mechanism MS sense input
Head F/R select output
56
mtlsw
I
Metal switch sense input
57
LOADSW
I
Tape loading input
58
POS
I
Cassette mechanism position sense input
59
RES
I
Cassette mechanism reverse end sense input
60
NES
I
Cassette mechanism forward end sense input
61
stby
O
Stand-by output
62
PCL
Not used
63
brxen
I/O
P-BUS BUSY input/output pin
64
bsrq
I/O
P-BUS service request input/output pin
7. GENERAL INFORMATION
7.1 PARTS
7.1.1 IC
www. xiaoyu163. com
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