Circuit Description - Kenwood DV-4050-B Service Manual

DV-4050-B/DVF-R6030-B
Microprocessor pin description : MN101C35D(X14,IC1)
Pin No. Pin Name
1 CMD
2 STATUS
3 DSPCLK
4 DATA
5 STB
6 CLK
7 CLR
8 VDD
9 OSC2
10 OSC1
11 VSS
12 XI
13 XO
14 MMOD
15 VREF-
16~18 KEYIN0~2
19,20 PA3,PA4
21 CLOSE SW
22 OPEN SW
23 PA7
24 VREF+
25 TM+
26 RESET
27 RM+
28 TRM-
29 MECHA VR
30 POWER
31 POWER MUTE
32 P15
33 REMOCON
34,35 P21,P22
36 POSITION
37 SPEED
38~ P25,P30~P32
42 STBY-LED
43 P51
44 VSS-LED
45,46 DESTINATION IN
47~49 DESTINATION OUT
50 DIGI 4
51~63 1G~13G
64~80 P17~P1
81~98 SEG24~SEG41
99 SW MUTE
100 VFL
5

CIRCUIT DESCRIPTION

I/O
O Serial output for system communication.
I Serial input for system communication.
I Serial clock for system communication.
O Data signal output to buffer.
O Strobe signal output to buffer.
O Clock signal output to buffer.
O Clear signal output to buffer.
- +5.0V power supply.
O Main clock (8MHz) output.
I Main clock (8MHz) input.
- Connected to ground.
- Connected to ground.
- Unused.
- Connected to ground.
- Connected to ground.
I Key signal input.
- Unused.
I Disc clamp control.
I Control port of tray open/close for changer mechanism.
- Unused.
- A/D reference voltage.
O Control port of tray motor.
I Reset signal input.
O Control port of tray motor.
O Control port of tray motor.
O Control port of tray motor.
O Control port of power supply.
O Power on/off control.
- Unused.
I Input port of remote control signal.
- Unused.
I Detection port of tray position.
I Detection port of rotation speed for tray.
- Unused.
O Control port of standby LED.
- Unused.
O Control port of VSS LED.
I Unused.
O Unused.
- Unused.
O FL grid output.
O FL segment output.
- Unused.
O Control port of sub woofer.
- FL power supply.
Description