Matsushita Electric SL-PG4, Service Manual

Page: 31 / 62

Pin
No.
Terminal
Name
I/O Function
1 PDE I Tracking signal input (1)
terminal
2 PDF I Tracking signal input (2)
terminal
3 V
CC
I Power supply terminal
4 PDA I Focus signal input (1) terminal
5 PDB I Focus signal input (2) terminal
6 LPD
I APC amplifier input terminal
7 LD
O APC amplifier output terminal
8 RF O RF addition output terminal
9 RF IN I RF detection signal input
terminal
10 CSBRT I Capacitor connection terminal
for OFTR (Connected to power
supply through capacitor)
11 CEA I HPF amplifier capacitor
connection input terminal
(Connected to power supply
through capacitor)
12 BDO O Dropout signal output terminal
13 LDON I APC control input terminal
14 GND - GND
15 /RFDET O RF detection signal output
terminal
16 PDOWN
O
Reduced voltage detection
signal output terminal
17 OFTR O Off-track signal output terminal
18 DEFLVL
I Laser intermittent drive ON/OFF
signal input
19 ENV O RF envelope signal output
terminal
20
GCLT
I
Crystal frame clock
21
EQSW - Not used, connected to GND
22 TE N I Tracking error amplifier input
terminal
23 TE OUT O Tracking error amplifier output
terminal
24 FE OUT O Focus error amplifier output
terminal
25 FE N I Focus error amplifier input
terminal
26 VREF O Reference voltage output
terminal
27 TBAL I Tracking balance signal input
terminal
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