69 AVDD1 +5V power supply - 4.9
70 AOUT1 Lch audio output O 2.0
71 AIN1 Lch OP-amp input I 2.0
72 LOUT1 Lch line-out O 2.0
73 AVSS1 Ground - 0
74 AVSS2 Ground - 0
75 LOUT2 Rch line-out O 2.0
76 AIN2 Rch OP-amp input I 2.0
77 AOUT2 Rch audio output O 2.0
78 AVDD2 +5V power supply - 4.9
79, 80 - Not used - -
IC451 : C2BBFC000021
Pin No. Port Description I/O (V)
1 NC No connection - -
2 SQSO Sub Q-cord data I 0.5
3 CLKOFF LSI clock stop O 5.0
4 SCKM Data shift clock O 5.0
5 MUTE Analog mute O 0
6 SOM Serial data O 0
7 PLLOFF Not used - -
8 SIM Serial data I 1.5
9 TNNER Inner switch I 4.4
10 OUT Disc-out detection I 4.2
11 IN Disc-in detection I 4.2
12 CLAMP Disc clamp detection I 0
13 PC0 Spindle motor driver on/off I/O 0
14 PC2 Loading motor driver on/off I/O 5.1
15 VREF +5V power supply - 5.1
16,17 NC No connection - -
18 XIN Crystal oscillator - 1.8
19 XOUT Crystal oscillator - 2.6
20 NC No connection - -
21 AVSS Ground - 0
22 VSS Ground - 0
23 VCC +5V power supply - 5.1
24 NC (Connecting to ground) - 0
25 XCIN Not used - -
26 LOCK Spindle PLL lock detection I 4.5
27 NC No connection - -
28 /RST CPU reset I 4.8
29 NC No connection - -
30 CDON CPU operation enable I 0
31 ATSK Anti-shock signal I 0
32 FOK RF level detection I 4.5
33 MIRR Mirror signal detection I 0
34 ATSK Anti-shock signal I 0
35 LOD Loading motor control I/O 2.3
36 PC1 Actuator motor drive on/off I/O 0
37 MODE Access mode selection O 0
38 SCLK SENS read clock O 5.1
39 SENS Servo LSI status I 0.7
40 CLOK Servo LSI data shift clock O 4.1
41 XLAT Serial data latch O 5.0
42 DATA Serial data O 3.5
43 SYSM LSI mute O 0
44 NC No connection - -
45 CDON Not used - 5.0
46- 49 - Not used - -
50 /RST Not used - 4.8
51 VSS Ground - 0
52 P53 Not used - -
53 XRST Servo LSI reset O 5.1
54 SQCK Sub Q-cord read clock O 5.1
55,56 - Not used - -
11
AUDI / CQ-JA1920L / CQ-JA1924L
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