AIWA XPR238
Service Manual

IC, MN662786SBM Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Pin Name
DRVDD D0 D1 NWE NRAS D2 D3 NCAS0 A10 A8 A7 A6 A5 A4 A9 A0 A1 A2 A3 DVSS2 DVDD2 SPOUT TRVP TRVM TRP TRM FOP FOM IOVDD1 TBAL FBAL FE TE RFENV OFT NRFDET BDO LDON ARF IREF ADPVCC

I/O
I I/O I/O O O I/O I/O O O O O O O O O O O O O I I O O O O O O O I O O I I I I I I O I I I

Description
DRAM interface power (terminal No. 2 to 19). DRAM data input/output signal 0. DRAM data input/output signal 1. DRAM write enable signal. DRAM RAS control signal. DRAM data input/output signal 2. DRAM data input/output signal 3. DRAM CAS control signal 0. DRAM address signal 10. DRAM address signal 8. DRAM address signal 7. DRAM address signal 6. DRAM address signal 5. DRAM address signal 4. DRAM address signal 9. DRAM address signal 0. DRAM address signal 1. DRAM address signal 2. DRAM address signal 3. Digital circuit GND. Digital circuit power. Spindle motor driver signal output. Traverse drive output (� polar output). Traverse drive output (+ polar output). Tracking drive output (� polar output). Tracking drive output (+ polar output). Focus drive output (� polar output). Focus drive output (+ polar output). I/O power supply. Tracking balance adjustment output. Focus balance adjustment output. Focus error signal input (analogue input). Tracking error signal input (analogue input). RF envelope signal input (analogue input). Off track signal input. "H": Off track. RF detection signal input. "L": Detected. Drop out signal input. "H": Drop out. Laser on signal output. "H": On. (Not used) RF signal input. Reference current input terminal. A/D reference voltage input (analogue input).

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