Kenwood RXD-V313 Service Manual page 6

RXD-V313
No. Name
83~86 COM-0~3
87 FM-STEREO
88 SYN REC
89 VSS3
90 VDD3
91 POWER-SW
92 SYS-MUT
93 TU-MUT
94 FUNCTION-TAPE
95 LCD-BACK-LIGHT
96
97 VR-1
98 REC-MUTE
99 EX-BASS
100 VOICE
2. MPEG Microprocessor : LC867240A (CD PCB, IC03)
2-1. Pin description
No. Name
1 N/P SEL OUT
2 RESET OUT
3
4
5
6 DATA OUT
7 DATA IN
8 SCK
9 STB IN
10 BUSY OUT
11 MIRQ
12 RESET
13, 14
15
16, 17 CF1/CF2
18 VDD
19 FUNCTION 4/3
20 8300/8301
21 MULTI 9/16
22 IM DRAM
23~26
27 WRQ
28, 29
30 VIDEO LED
31~37
38 VDD CONTROL
39~55
56 VDD
57
58~73
74 SL +
6
CIRCUIT DESCRIPTION
I/O
O FL Common 0~3
I FM stereo signal input
I Synchro start input
– Vss
– Vdd
O Power SW out
O System mute out
O Tuner mute out
O No used
O LCD back light control
N/C I No used
O VR step extend out
O IC03 (LC867240A) rec out mute
O EX-bass control
O Voice cancel out
I/O
O NTSC/PAL sel out to IC004 (LC78010E)
O IC001 (LC74201JE) reset out
DI I DI (IC001, LC74201JE)/SIN (IC005, LC74772V)
DO O DO (IC001, LC74201JE)
CL I Clock (IC005, LC74772V)
O Data out to IC601 (LC867724A)
I Data input from IC601 (LC867724A)
I Clock out from IC601 (LC867724A)
I Strobe input from IC601 (LC867724A)
O Busy out to IC601 (LC867724A)
I MIRQ (LC74201JE)
I Reset input
I/P – Vss
VSS – Vss
– Xtal 6.0 MHz
– Vdd
– Vss
– Vss
– Vss
– Vss
– – Vss
I Sub-code Q input stand by
– – Vss
O LED control (Video)
N/C – No used
O MPEG Vdd control
N/C – No used
– Vdd
VSS – Vss
– – No used
O Sled motor control (+)
Description
Description
Active
H L
Mono Stereo
O
On Off
Off On
On Off
On Off
1step Others
On Off
On Off
Off On
Active
H L
O
O
O
Other CD
O