Kenwood RXD-951 Service Manual page 9

4-2 Pin description
Microprocessor : M38199MF-084FP (X09, IC10)
Pin No. Pin 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 EMPHASIS
11 CD PROT
12 DRV CLK
13 DRV SI
14 DRV SO
15 C BUSY
16 VCLOCK
17 C DATA
18 M DATA
19 CD CK
20 SQCK
21 CDDT
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 P/N-O
34 M BUSY
35 RESET
36 X CIN
37 X COUT
38 X IN
39 X OUT
40 VSS
41 PLL DO
42 STEREO
43 SD
44 CE
45 PLL CE
46 TU EMP
47 FL RST
48 T MUTE
49 DRV ST
50 HP RLY
51 SEL ST
52 ATT
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 Video CD emphasis
I CD protect input
O FL driver u-COM control clock
O FL driver u-COM control data output
I FL driver u-COM control data input
O Video CD u-COM busy output (MPEG)
O Video CD u-COM clock (MPEG)
O Video CD u-COM data output (MPEG)
I Video CD u-COM data input (MPEG)
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 Video CD video mode
I Video CD u-COM busy input (MPEG)
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
I Power failure input
O PLL IC chip enable (LC72131)
O FM emphasis change-over (M type only)
Polar/Pilot change-over (Q type only)
O FL driver reset control output
O TUNER mute control output
O FL driver u-COM control strobe output
O Headphones relay control
O Selector IC strobe output (NJU7313AL)
O E. vol attenuation
RXD-951/A700/A900/V616/V818/V919
Description
H : SHIFT
H : OFF
H : ON
H : PROTECT
H : OFF
H : PROTECTION ON L : NORMAL
H : PAL
H : NORMAL
H : AC ON
H : 100kHz
H : POLAR
H : ON
L : LOAD
L : ON
L : OFF
L : NORMAL
L : ON
L : NTSC
L : RESET
L : AC OFF
L : 50kHz
L : PILOT
L : OFF
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