AIWA AZGY Repair Manual

IC DESCRIPTION-2/3 (CXD2654R)-2/3
Pin No.Pin NameI/ODescription
41A11OEternal DRAM address output. (Not connected)
42DVSSNDigital ground.
43XOEOExternal DRAM output enable.
________
44XCASOExternal DRAM CAS output.
45A09OExternal DRAM address output.
________
46XRASOExternal DRAM RAS output.
47XWEOExternal DRAM write enable.
48D1I/O
49D0I/O
External DRAM data bus.
50D2I/O
51D3I/O
52MVCIIExternal VCO (784Fs) clock input.
53ASYOOPlayback EFM full- swing output. (Low: VSS; high: VDD)
54ASYIIPlayback EFM comparator slice voltage input.
55AVDDNAnalog power supply.
56BIASIPlayback EFM comparator bias current input.
57RFIIPlayback EFM RF signal input.
58AVSSNAnalog ground.
59PCOOPhase comparison output for master PLL of playback digital PLL and recording EFM PLL.
60FILIIFilter input for master PLL of playback digital PLL and recording EFM PLL.
61FILOOFilter output for master PLL of playback digital PLL and recording EFM PLL.
Internal VCO control voltage input for master PLL of playback digital PLL and recording EFM
62CLTVI
PLL.
63PEAKIPeak hold signal input for quantity of light.
64BOTMIBottom hold signal input for quantity of light.
65ABCDISignal input for quantity of light.
66FEIFocus error signal input.
67AUX1IAuxiliary input 1.
68VCICenter voltage input.
69ADIOOMonitor output for A/D converter input signal. (Not connected)
70AVDDNAnalog power supply.
71ADRTIVoltage input for the upper limit of the A/D converter operating range.
72ADRBIVoltage input for the lower limit of the A/D converter operating range.
73AVSSNAnalog ground.
74SEISled error signal input.
75TEITracking error signal input.
76DCHGIConnected to the low impedance power supply.
77APCIError signal input to the laser digital APC.
78ADFGIADIP2 binary-converted FM signal (22.05?1 kHz) input.
79F0CNTOCurrent source setting output terminal to CXA2523.
80XLRFOLatch output for CXA2523 control. Latched at rise-up.
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