Kenwood DPF-1030 Service Manual page 3

1. Pin description of microprocessor
Pin No. Pin Name I/O
1-6 6G-1G O FL grid control port.
7 NC - Unused.
8 VDD - Power supply(+5V).
9-11 - - Connected to ground.
12 C-RESET O DSP signal output.
13 S-MUTE O Muting signal output for system.
14 NC - Unused.
15 TEXT I Text copy detection.
16 - - Connected to ground.
17 RESET I Hardware reset signal input.
18 LD CLOSE O Tray motor control.
19 LD OPEN O Tray motor control.
20 AVSS - Connected to ground.
21 - - Connected to ground.
22 PU IN SW I Pickup location.
23 OPEN SW I Tray open switch input.
24 CLOSE SW I Tray close switch input.
25-28 KEYO-3 I Key input port.
29 AVDD - Power supply(+5V).
30 AVREF - Reference voltage(+5V).
31,32 XT1,2 - Connected to ground.
33 VSS - Connected to ground.
34,35 XO,1 - X'tal 4.19MHz.
36 WRQ I Sub code Q output.
37 COIN O Command data to DSP.
38 16BIT - Unused.
39 HF - Connected to ground.
40 NC - Unused.
41 CQCK O Clock output to DSP.
42 SQOUT I SQ data to dsp.
43 RWC O Reading/writing control port.
44 GND - Connected to ground.
45 S BUSY I/O System control data.
46 S DATA I/O System control status.
47 RMC I Remote control signal input.
48 GND - Connected to ground.
49 TRY L/H O Tray motor speed control.
50 SL- O Sled motor control port(reverse).
51 SL+ O Sled motor control port(forward).
52 VDD - Power supply(+5V).
53-59 NC - Unused.
60 DRF I CD focus OK signal input.
61 NC - Unused.
62-70 a-j O FL segment(a-j) control port.
71 VLOAD - Power supply(-30V).
72,73 k,l O FL segment(k,l) control port.
74-77 NC - Unused.
78-80 9G-7G O FL grid(9G-7G) control port.
Description
2. Test mode
Setting the test mode
: While pressing the STOP key, press the POWER switch.
START
FL LIGHT UP ALL
Tray open/close enable (display no change)
For move Pick-up, UP and DOWN key enable only stop mode
Key in PLAY
Laser ON , Display [LD ON]
Key in Play
Focus ON, Display [FS ON]
Key in PLAY
PLAY (Track servo OFF) Display [Sb OFF]
Key in PLAY
Play (Track servo ON)
Key in STOP
STOP
3. Key function in test mode
No. INPUT KEY
1 PLAY(1ST) LASER ON
2 PLAY(2ND) FOCUSING SERVO ON
3 PLAY(3RD) PLAY(TRACKING SERVO OFF)
4 PLAY(4TH) PLAY(TRACKING SERVO ON)
5 UP In the stop mode. Moves the pickup slightly
toward the outer position disc.
When tracking servo is ON, set the track number up.
6 DOWN In the stop mode. Moves the pickup slightly
toward the inner position disc.
When tracking servo is ON, set the track number up.
7 STOP Laser off, focusing servo off, tracking servo off.
8 OPEN/CLOSE In the stop mode, Tray is opened or closed.
STOP key enable
If key in STOP,
return to start
stage.
WITH TIME DISPLAY
When play mode, UP key enable
but only track jump.
Test mode will be cancelled by pressing the
POWER switch key in the stop mode.
FUNCTION DISPLAY
LD ON
FS ON
TN0. And Time
All segments
All segments
Sb off
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