Kenwood KC-Z1 Service Manual page 10

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3 7 63 1515 0
2-2. Pin description
Pin No. Pin Name
1 DSP1REQ
2 DSP1AK
3 DSP2RST
4 AVSS
5 DSP2RDY
6 DSP2REQ
7 AVREF1
8
9 DSP1DT/DSP2DT
10 DSP1CK/DSP2CK
11 MDT
12 SDT
13 MCK
14 MREQ
15 SREQ
16 ZRSI
17 ZRSO
18 ZRCK
19 ZRSS
20 ZRRST
TE
L 13942296513
21 ADPD
22,23 DADEMO0,1
24 DAPD
25 DEMRST
26
27 DEMMSYC
28-31
32 PLLMUTE
33 VSS
34 SUBMUTE
35 SWMUTE
36-40
41 DIRSRDT
42 DIRSCLK
43 DIRXLAT
44 DIRSWDT
45,46 DIRSUB1,2
47 DIRERROR
48 DIRXMODE
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49 DIRENPHA
50
51 LPFSTB
.
52 LPFCK
53 LPFDT
54
55 DIGSWSEL
CIRCUIT DESCRIPTION
I/O
O DSP IC1 (LC83015JE):(X08:IC41) request
I DSP IC1 (LC83015JE):(X08:IC41) acknowledge
O DSP IC2 (LC83015JE):(X08:IC42) reset
A/D reference voltage (GND)
O DSP IC2 (LC83015JE):(X08:IC42) ready
O DSP IC2 (LC83015JE):(X08:IC42) request
A/D reference voltage (VDD)
I Not used
O DSP IC1,2 (LC83015JE) data
O DSP IC1,2 (LC83015JE) clock
I Master data (communicated with main u-com)
O Slave data (communicated with main u-com)
I Master clock (communicated with main u-com)
I Master request (communicated with main u-com)
O Slave request (communicated with main u-com)
I ZR38500 slave data
O ZR38500 master data
O ZR38500 master clock
O ZR38500 strobe
O ZR38500 reset
O ADC (AK 5340) power down
O DAC ( PCM1702U) sample rate select
O DAC ( PCM1702U) reset
O Demodulater reset
I Not used
I Demodulator AC3 data sync check
I Not used
I PLL lock/unlock detect
I GND
O Sub mute
O SW.mute
I Not used
I DRI ( LC8904Q) channel statace output (32Bit)
O DIR ( LC8904Q) clock
O DIR ( LC8904Q) data latch
O DIR ( LC8904Q) data
I DIR ( LC8904Q) sample frequency output
I DIR ( LC8904Q) error check
O DIR ( LC8904Q) reset
I DIR ( LC8904Q) emphasis
x ao
y
O Not used
O SEL IC (TC9162N/TC9163N) data
i
O SEL IC (TC9162N) clock
O SEL IC (TC9162N)data
I Not used
O TC74HC157 analog/digital selector
8
Description
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
H:AC3 SYNCRO
H:ERROR
m
co
H:DIGITAL
9 9
2 8 9 9
L:ERROR
L:PCM
L:ANALOG