Aiwa XR-MK25, Service Manual

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1 FEO O
Focus error amplifier output pin. This pin is connected to the FZC
comparator input internally.
2 FEI I Focus error input pin.
3 FDFCT I Capacitor connection pin for time constant used when there is defect.
4 FGD I
This pin is connected to GND via capacitor when high frequency gain of the
focus servo is attenuated.
5 FLB I
This is a pin where the time constant is externally connected to raise the low
frequency gain of the focus servo.
6 FEO O Focus drive output.
7 FEM I Focus amplifier inverted input pin.
8 SRCH I
This is a pin where the time constant is externally connected to generate the
focus search waveform.
9 TGU I
This is a pin where the selection time constant is externally connected to set
the tracking servo the high frequency gain.
10 TG2 I
This is a pin where the selection time constant is externally connected to set
the tracking high frequency gain.
11 FSET I Pin for setting peak of the phase compensator of the focus tracking.
12 TAM I Tracking amplifier inverted input pin.
65 EXCK I Clock input for SBSO read out. (Connected to GND)
66 SQSO O SubQ 8-bit and PCM peak level data. 16-bit output.
67 SQCK I Clock input for SQSO readout.
68 MUTE I Mute at H. Release at L.
69 SENS O SENS output.Output to CPU.
70 XRST I System reset. Reset at L.
71 DATA I Serial data input from CPU.
72 XLAT I Latch input from CPU. Latches serial data at fall-down edge.
73 VDD – Power supply (+3.5 V).
74 CLOK I Serial data transfer clock input from CPU.
75 SEIN I Sensor input from SSP.
76 CNIN I Track jump number counted signal input.
77 DATO O Serial data output to SSP.
78 XLTO O Serial data latch output to SSP. Latches at fall-down edge.
79 CLKO O Serial data transfer clock output to SSP.
80 MIRR I Mirror signal input. Used for jump of 128 track or more at auto sequencer.
Pin No. Pin Name I/O Description
Pin No. Pin Name I/O Description
IC, CXA1782BQ
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