Aiwa CSD-A310 EZ' CSD-A310 G, Руководство по обслуживанию

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1 DEFI I Defect detection signal (DEF) input. ("L" is applied when not used.)
2 TAI I For PLL/Test input. A pull-down resistor is incorporated.
3 PDO O Phase comparison output to control the external VCO.
4 VVSS – Ground of the built-in VCO. Normally, 0V.
5 ISET I For the connection of a resistor which adjusts the PDO output current.
6 VVDD – Power supply of the built-in VCO.
7 FR I Adjusts the VCO frequency range.
8 VSS – Ground of digital circuits. Normally, 0V.
9 EFMO O For slice level control/EFM signal output.
10 EFMIN I EFM signal input.
11 T2 I Test input. A pull-down resistor is incorporated. Be sure to connect this to 0V.
12 CLV+
O Disc motor control tri-state outputs.
13 CLV-
14 V/P O
Output to monitor the automatic switching between the rough servo control and phase servo
control. "H" :Rough servo, "L": Phase servo.
15 HFL I Track detection signal input. Schmitt trigger input.
16 TES I Track error signal input. Schmitt trigger input.
17 TOFF O Tracking off output.
18 TGL O Tracking gain switching output. "L" raises the gain.
19 JP+
O Track jump control tri-state outputs.
20 JP-
21 PCK O Monitors the clock signal for EFM data playback.4.3218MHz when the phase is locked.
22 FSEQ O
Sync signal detection output. Goes "H" when the sync signal detected from the EFM
signal matches the sync signal generated internally. (Not used)
23 VDD – Power supply of digital circuits.
24 SL+ I/O General purpose input/output 1. Controlled by serial data command issued by the microprocessor.
25 SL– I/O General purpose input/output 2. Controlled by serial data command issued by the microprocessor.
26 NC – Not connected.
27 PUIN I/O CD pickup inside limit switch.
28 RW I/O Serial data command sled signal output terminal from microprocessor.
29 EMPH O Deemphasis monitor. "H": when playing a deemphasis disc. (Not used)
30 C2F O C2 flag output. (Not used)
31 DOUT O Outputs a digital OUT signal. (EIAJ format) (Not used)
32 T3
I Test input. A pull-down resistor is incorporated. Be sure to connect this to 0V.
33 T4
34 N.C – Not connected.
35 MUTEL O Lch 1-bit DAC/Lch muting output. (Not used)
Description
Pin No.
Pin Name I/O
IC DESCRIPTION
IC, LC78622ED