AIWA AZG7 Repair Manual

Pin No.Pin NameI/ODescription
38A08OAddress output to external DRAM.
39A11ONot used.
40DVSSNDigital GND.
41XOEOExternal DRAM output enable.
________
42XCASOCAS output to external DRAM.
43A09OAddress output to external DRAM.
________
44XRASORAS output to external DRAM.
45XWEOWrite enable for external DRAM.
46D1I/O
47D0I/O
Data bus for external DRAM.
48D2I/O
49D3I/O
50MVCIIExternal VCO (784 fs) clock input.
51ASYOOPlayback EFM full swing output. (L: VSS, H: VDD).
52ASYIIPlayback EFM comparator slice voltage input.
53AVDDNAnalog GND.
54BIASIPlayback EFM comparator bias current input.
55RFIIPlayback EFM RF signal input.
56AVSSNAnalog power supply.
57PDOONot used.
Phase comparison output to the master PLL of playback digital PLL and to the
58PCOO
recording EFM PLL.
59FILIIFilter input to the master PLL of playback digital PLL and to the recording EFM PLL.
Filter output to the master PLL of playback digital PLL and to the recording EFM
60FILOO
PLL.
Internal VCO control voltage of the master PLL of playback digital PLL and of the
61CLTVI
recording EFM PLL.
62PEAKIOptical light volumeOs peak hold signal input.
63BOTMIOptical light volumeOs bottom hold signal input.
64ABCDIOptical light volume signal input.
65FEIFocus error signal input.
66AUX1IAuxiliary input 1.
67VCICenter terminal voltage input.
68ADIOONot used.
69AVDDNAnalog power supply.
70ADRTIVoltage input of the upper limit of the A/D converter operation range.
71ADRBIVoltage input of the lower limit of the A/D converter operation range.
72AVSSNAnalog GND.
73SEISled error signal input.
74TEITracking error signal input.
75AUX2IAuxiliary input 2.
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