Kenwood NV-301, Руководство по обслуживанию

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RXD-NV301/NV301E/NV701/NV701E
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CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description
1,2 15G,16G O Grid signal(15G,16G) output.
3 VDD - Power 5.0V).
4 POWER DOWN - Connected to ground.
5 FOK I FOK data input.
6 SCOR I Sub code-Q read out timing input.
7,8 NC - Connected to ground.
9 SENSE I Sense signal input.
10~12 NC - Unused.
13 PLUSE I Input pulse to find CD numbering position.
14 XRST O Output for resetting CXD3017Q(IC501).
15 CD MUTE O Control port of mute on/off.(at L is active)
16 SYSTEM OFF O Control port of system off.
17 XLAT O Serial latch data output.
18 LD ON O Output to on/off laser.
19 TEST SW - Unused.
20 NC - Unused.
21 MPEG CS - Unused.
22 MPEG CLK - Unused.
23 MPEG DATA - Unused.
24 MPEG DATA - Unused.
25 SQCK O Clock data output for sub code-Q read out.
26 SQSO I Sub code-Q data input.
27 DATA O Serial data output.
28 VREF - Reference v5.0V).
29 DIG LINK I/O Communication with main microprocessor.
30 DIG LINK I/O Communication with main microprocessor.
31 DOWN SW I Input to detect that pick-up is down.
32 UP SW I Input to detect that pick-up is up.
33 OPEN SW I Input to detect that tray is opened.
34 CLOSE SW I Input to detect that tray is closed.
35,36 NC - Unused.
37 AVSS - Connected to ground.
38 RESET I Input port for resetting to CPU. (at L is active)
39 EXTAL I Input port of 10MHz crystal oscillator.
40 XTAL O Output port of 10MHz crystal oscillator.
41 VSS - Connected to ground.
42 NC - Unused.
43 VSS - Connected to ground.
44 VDD - Power suply(+5.0V).
45 VFDP - Power supply(-30V) for FL display.
46 OPEN SW O Output to open the tray or down the pick-up.
47 CLOSE SW O Output to close the tray or up the pick-up.
48 RTL O Output to rotate the roulette ccw.
49 RTR O Output to rotate the roulette cw.
50 SPEED DOWN O Output to decrese roulette speed. (at H is active)
51,52 P1,P2 O Segment signal output.
53 P3 O Connected to ground.
54~85 P4~P35 O Segment signal output.
86~88 1G~3G O Grid signal(1G,3G) output.
89 VDD - Power 5.0V).
90~100 4G~14G O Grid signal(4G~14G) output.
3. Pin description of FL driver IC : CXP82832(IC101)
Input Voltage OV 0.42V 0.84V 1.27V 1.74V 2.25V 2.63V
KEY 1 (29Pin) STOP SET DOWN UP ENTER MENU/DEMO -
KEY2 (30Pin) CD TUNER TAPE MD/DVD OPEN DISC SKIP
4. Key Matrix
( ) : Port of IC2(u-COM)
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