Ic701 (An8839Nsbe2):Servo Amp - Technics SL-EH560 Service Manual

15.2 IC701 (AN8839NSBE2):/Servo Amp
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Pin No. Terminal Name I/O
1 PDE
2 PDF
3 Vcc
4 PDA
5 PDB
6 LPD
7 LD
8 RF
9 RFIN
10 CSBRT
11 CEA
12 BDO
13 LDON
14 GND
15 /RFDET
16 PDOWN
17 OFTR
18 NC
19 ENV
20 NC
21
22 TEN
23 TEOUT
24 FEOUT
25 FEN
26 VREF
27 TBAL
28 FBAL
Function
I Tracking signal input terminal 1 (E ch)
I Tracking signal input terminal 2 (F ch)
I Power supply terminal
I Focus signal input terminal 1 (A ch)
I Focus signal input terminal 2 (B ch)
I Laser PD signal
O Laser power auto control output
O RF amp terminal
I AGC input terminal
I OFTR capacitor connection terminal
I HPF-AMP capacitor connection terminal
O Dropout detection control
I LD APC ON/OFF (H: ON)
- GND terminal
O RF detect signal output (L: detect)
- Power down terminal
O Off track detection (H: detect)
- Not used, open
O Envelope signal output
- Not used, open
I Tracking error signal input
O Tracking error signal output
O Focus error signal output
I Focus error signal input
O Reference voltage output
I Tracking balance adj. input
I Focus balance adj. input