Kenwood RXD-501 Service Manual page 9

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4-2 Pin description
Microprocessor : M38199MF-075FP (X09, IC10)
No Name
1 PS IN
2 PS LOAD
3 A MUTE
4 BP IN
5 JOG CW
6 JOG CCW
7 ENC CW
8 ENC CCW
9 H.P.
10 NC
11 CD RST
12 DRV CLK
13 DRV SI
14 DRV SO
15 S LEVEL
16 RDS DATA
17,18 NC
19 CD CK
20 SQCK
TE 21 CDDT
L 13942296513
22 SQSO
23 CDXL
24 SENS
25 CDSCK
26 LD ON
27 DATA
28 CLK
29 PROT
30 SCOR
31 E DATA
32 E CLK
33 NC
34 RDS CLK
35 RESET
36 X CIN
37 X COUT
38 X IN
39 X OUT
40 VSS
41 PLL DO
42 STEREO
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43 SD
44 CE
45 PLL CE
.
46 TU EMP
47 FL RST
CIRCUIT DESCRIPTION
I/O
I Parallel serial IC input data
O Parallel serial IC load
O Audio mute control
I Speana input (A/D converter input)
I Jog input B
I Jog input A
I Rotary encoder input B
I Rotary encoder input A
I Headphones switch input
I/O No used
O CD DSP IC reset control (CXD2587Q)
O FL driver u-COM control clock
O FL driver u-COM control data output
I FL driver u-COM control data input
I RDS S Level input
I RDS data input
I No used
O CD DSP IC clock (CXD2587Q)
O CD Sub code clock (CXD2587Q)
O CD DSP IC data (CXD2587Q)
I CD Sub code input (CXD2587Q)
O CD latch output (CXD2587Q)
I CD sense input (CXD2587Q)
O Sense data reading clock output (CXD2587Q)
O CD laser output
O SELECTOR/SYSTEM/DAC/DOLBY IC data output
O SELECTOR/SYSTEM/DAC/DOLBY IC clock output
I Protection input
I Sub code synchronism signal (CXD2587Q)
O E. vol data output (M62430FP)
O E. vol clock output (M62430FP)
I/O No used
I RDS clock input
I Reset signal input
I Timer clock input (32.768kHz)
O Timer clock output (32.768kHz)
I Main clock input (8.38MHz)
O Main clock output (8.38MHz)
– GND
I PLL data input
I Stereo detector input
I SD detector input
x ao u163
y
I Power failure input
O PLL IC chip enable (LC72131)
i
O FM emphasis change-over (M type only)
Polar/Pilot change-over (Q type only)
O FL driver reset control output
RXD-501/551/571/A5/701/751/771/A8
2 9
8
Description
H : SHIFT
H : OFF
H : ON
H : NORMAL
Q Q
3 6 7 1 3 1 5
H : OFF
H : PROTECTION ON L : NORMAL
H : NORMAL
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H : AC ON
.
H : 100kHz
H : POLAR
9 4 2 8
L : LOAD
L : ON
L : OFF
L : RESET
0 5 8 2 9 9 4 2 8
L : ON
L : RESET
m
L : AC OFF
L : 50kHz
L : PILOT
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