Aiwa XP-R231, Руководство по обслуживанию

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IC, MN662786SBM
Pin No. Pin Name I/O Description
1 DRVDD I DRAM interface power (terminal No. 2 to 19).
2 D0 I/O DRAM data input/output signal 0.
3 D1 I/O DRAM data input/output signal 1.
4 NWE O DRAM write enable signal.
5 NRAS O DRAM RAS control signal.
6 D2 I/O DRAM data input/output signal 2.
7 D3 I/O DRAM data input/output signal 3.
8 NCAS0 O DRAM CAS control signal 0.
9 A10 O DRAM address signal 10.
10 A8 O DRAM address signal 8.
11 A7 O DRAM address signal 7.
12 A6 O DRAM address signal 6.
13 A5 O DRAM address signal 5.
14 A4 O DRAM address signal 4.
15 A9 O DRAM address signal 9.
16 A0 O DRAM address signal 0.
17 A1 O DRAM address signal 1.
18 A2 O DRAM address signal 2.
19 A3 O DRAM address signal 3.
20 DVSS2 I Digital circuit GND.
21 DVDD2 I Digital circuit power.
22 SPOUT O Spindle motor driver signal output.
23 TRVP O Traverse drive output (– polar output).
24 TRVM O Traverse drive output (+ polar output).
25 TRP O Tracking drive output (– polar output).
26 TRM O Tracking drive output (+ polar output).
27 FOP O Focus drive output (– polar output).
28 FOM O Focus drive output (+ polar output).
29 IOVDD1 I I/O power supply.
30 TBAL O Tracking balance adjustment output.
31 FBAL O Focus balance adjustment output.
32 FE I Focus error signal input (analogue input).
33 TE I Tracking error signal input (analogue input).
34 RFENV I RF envelope signal input (analogue input).
35 OFT I Off track signal input. "H": Off track.
36 NRFDET I RF detection signal input. "L": Detected.
37 BDO I Drop out signal input. "H": Drop out.
38 LDON O Laser on signal output. "H": On. (Not used)
39 ARF I RF signal input.
40 IREF I Reference current input terminal.
41 ADPVCC I A/D reference voltage input (analogue input).
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