X-W320
4
CIRCUIT DESCRIPTION
1-2 Pin description
Pin No. Pin Name I/O Description Action
1~7 G7~G1 O FL tube grid signal output (G7~G1)
8 VDD SUPPLY (+5V)
9 CLK O System IC clock output
10 STB O System IC strobe signal input H
11 DATA O System IC serial data output H/L
12 HXPRO O HX-PRO bias switching L : ON L
13 PLAY B/A O B/A Head switching H : B H/L
14 DOLBY ON O DOLBY ON/OFF H
15 DOLBY C/B O DOLBY C/B H
16 MPX O MPX FILTER OFF/ON L
17 RST I Reset signal input L
18 CPMA O A capstan motor ON H
19 CPMB O B capstan motor ON H
20 AVss GND
21 PHA I A mecha rotation detection L
22 PHB I B mecha rotation detection L
23 A PACK I A tape detection input H
24 B PACK I B tape detection input H
25 A CrO2 I A mecha CrO2 tape detection H
26 B CrO2 I B mecha CrO2 tape detection H
27 LEVEL L I CCRS, DPSS Lch signal input
28 LEVEL R I CCRS, DPSS Rch signal input
29 AVDD ANALOG SUPPLY (+5V)
30 AVREF FOR ADC
31, 32 XT1, XT2 OPEN
33 Vss GND
34 X1 I Clock oscillator
35 X2 I Clock oscillator
36 CSPB O B-Capstan motor speed High/Nor H/L
37 B BIAS O B Bias ON/OFF H : ON H
38 B Mecha R/P O B REC/PLAY switching H : REC H
39 F REC I A-Fool Proof FWD L : REC OK H
40 R REC I A-Fool Proof BWD L : REC OK H
41 CSP A O A-capstan motor speed High/Nor H/L
42 SOLB O B solenoid ON H
43 SOLA O A solenoid ON H
44 EQ SP O
45 S DATA I/O Serial data input output H/L
46 S BUSY I/O Serial busy input output H/L
47 CE I System Stop L
48 IC Connect to VSS
49 LINE MUTE O Line mute control H
50 REC MUTE O Rec mute control H
51 BIAS NORMAL O HX-PRO Bias switching H : NOR H
52 VDD Supply (+5V)
53 B PLAY SW I B-Mecha Mode SW L : PLAY L
54 A PLAY SW I A-Mecha Mode SW L : PLAY L
55 EQ 70/120 O EQ switching H : 70us H
56 OTE O OTE LED Indicator L
57~60 KR3~0 I Key return signal input(KR3~0)
61 70HSP O EQ SP HIGH & BIAS 70us
62~70 SA~SI O FL tube grid signal output(SA~SI)
71 VLOAD FL tube driving voltage(-30V)
72~77 SJ~SO O FL tube segment signal output
78 IC O Supply (+5V) to FL
79,80 G9,G8 O FL tube grid signal output
X-W320(K) COVER( 97.11.29 4:37 AM y[W 7
