Ic401 (C2Bbgd000075) Microprocessor - Technics SL-PD7 Service Manual

11.4 IC401 (C2BBGD000075) Microprocessor

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Pin No. Mark I/O
1~7 G7~G1 O Grid signal of FL display
8 VDD - Power supply terminal
9 MCLK O Command clock signal
10 MDATA O Command data signal
11 MLD O Command load signal ("L" LOAD.)
12 SENSE I Sense signal
13 DMUTE O Muting control signal
14 SQCK O Sub-code Q register clock
15 NC - Not connected
16 SUBQ I Sub-code Q data
17 /RESET I Reset signal input
18 ZSENSE - Not used, connected to GND
19 REC.EN I Synchro. rec. control terminal
20 AVSS - GND terminal
21 /RSTSV O Reset signal output
22 OPEN I Open detect terminal
23 DIR O Motor control signal
24 TURN O Motor control signal
25 LOAD O Motor control signal
26 AD3 I Key input 3
27 AD2 I Key input 2
28 AD1 I Key input 1
29 AVDD I Power supply terminal
30 AVREF - Power supply terminal
31 NC - Not used, connected to GND
32 XT2 - Not used, open
33 VSS - GND Terminal
34 X1 I Crystal Osc. Input terminal (4.2336MHz)
35 X2 O Crystal Osc. Output terminal (4.2336MHz)
36 RESETSW O Rest position detect
37 UP/DOWN I Traverse deck up/down fetection input
38 Unused I Not used, connected to GND
39 Unused I Not used, connected to GND
40 Unused I Not used, connected to GND
41 Unused I Not used, connected to GND
42 Unused I Not used, connected to GND
43 PWM O Mechanism control signal (PWM output)
44 POFF I Power OFF detection input
45 POSITION I Rotary tray position detecting sensor input
46 SPEED I Loading motor speed sensor input
47 REMOCON I Remote control sensor input
48 IC - Not used, connected to GND
49 /TLOCK I Optical servo condition (tracking) input
50 /FLOCK I Optical servo condition (focus) input
51 STAT I Status signal (CRC,CUE,CLVS,TTSTOP, FCLV,SQCK)
52 VDD - Power supply terminal (+5V)
53 POWER O Power ON/OFF output terminal
54 SYNCHRO - Not used, open
Function