Service manual

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XL-520W/CP-520
IC801 VHiTA2065F/-1:Servo Amp. (TA2065F)
1 RFO Output RF amp (RF AMP) output terminal.
2 RFI Input RF ripple signal generating circuit input terminal.
3 VRO Output VR amp output terminal.
4 2VRO Output 2VR amp output terminal.
5 RFRP Output RF ripple signal output terminal.
6 SBAD Output Defects detection signal output terminal.
7 DFIN Input Defect detecting comparator positive phase input terminal.
8 FEP Input Focus error balance adjusting input terminal.
9 FEN Input Focus error amp (FE AMP) negative phase input terminal.
10 FEO Output Focus error amp (FE AMP) output terminal.
11 FEI Input Focus output amp (FS AMP) positive phase input terminal.
12 FHLD Input Hold switch terminal for defect.
13*,14* FEL1,2 Input Focus gain adjusting terminal.
15 FSN Input Focus output amp (FS AMP) nagative phase input terminal.
16 FSO Output Focus output amp (FS AMP) output terminal.
17 COSC Output Focus search signal generating capacitor connecting terminal.
18 OSCI Input Focus search signal generating built-in current source control input terminal.
19 GND — Ground terminal.
20 VCC — Power source terminal.
21 SEL Input Analog switch control signal input terminal.
22 DMEP Input Disc motor amp (DM AMP) positive phase input terminal.
23 DMEN Input Disc motor amp (DM AMP) negative phase input terminal.
24 DMEO Output Disc motor amp (DM AMP) output terminal.
25 DFCT Input Defect detecting comparator negative phase input terminal.
26 FMSO Output Feed motor output amp (FMS AMP) output terminal.
27 FMSN Input Feed motor output amp (FMS AMP) negative phase input terminal.
28 FMSP Input Feed motor output amp (FMS AMP) positive phase input terminal.
29* THLD Input Hold switch terminal for defect.
30 TS2O Output Tracking servo amp 2 (TS2 AMP) output terminal.
31 TS2N Input Tracking servo amp 2 (TS2 AMP) negative phase input terminal.
32 TS2P Input Tracking servo amp 2 (TS2 AMP) positive phase input terminal.
33* TS1N Input Tracking servo amp 1 (TS1 AMP) negative phase input terminal.
34 TS1P Input Tracking servo amp 1 (TS1 AMP) positive phase input terminal.
35 TSO Ouput Tracking output amp (TS AMP) output terminal.
36,37 TEL1,2 Input Tracking gain adjusting terminal.
38 TSN Input Tracking output amp (TS AMP) negative phase input terminal.
39 TPO Output Sub-beam I-V amp output terminal.
40 TPI Input Sub-beam I-V amp input terminal.
41 TNI Input Sub-beam I-V amp input terminal.
42 TNO Output Sub-beam I-V amp output terminal.
43 FNI Input Main-beam I-V amp input terminal.
44 FPI Input Main-beam I-V amp input terminal.
45 LDO Output Laser diode amp output terminal.
46 MDI Input Monitor photo diode amp input terminal.
47 RFN Input RF amp negative phase input terminal.
48 RFT Input RF amp peaking terminal.
Terminal Name
Pin No. Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function