Aiwa XP-V420, Руководство по обслуживанию

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Pin No. Pin Name I/O Description
IC DESCRIPTION-1/2 (MN662782RPT1)-1/2
DVDD3
D0, 1
NWE
NRAS
D2, 3
NCAS0
A10
A8-A0
A1-A3
DVSS2
DVDD2
SPOUT
TRVM
TRVP
TRM
TRP
FOM
FOP
FBAL
TBAL
VREF
FE
TE
RFENV
OFT
NRFDET
BDO
LDON
ARF
IREF
ADPVCC
DSLF
DSLF2
PLLF
VCOF
AVDD2
AVSS2
OUTL
AVSS1
OUTR
I
I/O
O
O
I/O
O
O
O
O
I
I
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
O
I
I
I
O
O
O
O
I
I
O
I
O
Power supply for DRAM interface. (pin No. 2 to 19).
DRAM data input/output signal 0, 1.
DRAM write enable signal.
DRAM RAS control signal.
DRAM data input/output signal 2, 3.
DRAM CAS control signal 0.
DRAM CAS control signal 1. (when both 1 M and 4 MDRAM are used).
DRAM address signal 10. (when 16 MDRAM is used) (Not connected)
DRAM address signal 8-0.
DRAM address signal 1-3.
Ground for digital circuit.
Power supply for digital circuit.
Spindle motor drive signal output. (absolute value output).
Traverse drive output. (positive polarity output).
Traverse drive output. (negative polarity output).
Tracking drive output. (positive polarity output).
Tracking drive output. (negative polarity output).
Focus drive output. (positive polarity output).
Focus drive output. (negative polarity output).
Focus balance adjustment output.
Tracking balance adjustment output.
DA output block reference voltage. (FBAL, TBAL, DSLF2).
Focus error signal input. (analog input).
Tracking error signal input. (analog input).
RF envelope signal input. (analog input).
Off-track signal input. H: Off-track.
RF detection signal input. L: Detection.
Drop-out signal input. H: Drop-out.
Laser ON signal output. H: ON.
RF signal input.
Reference current input terminal.
AD reference voltage input. (analog input).
Loop filter terminal for DSL.
For DSL unbalance current correction.
Loop filter terminal for PLL.
Loop filter terminal for jitter free VCO.
Power supply for analog circuit. (for DSL, PLL, VCOF, AD, DA).
Ground for analog circuit. (for DSL, PLL, VCOF, AD, DA).
Lch audio output.
Ground for analog circuit. (for audio output block).
Rch audio output.