Philips HTB3510/12 Service Manual page 68

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Pin Symbol
3.3V LVTTL
5V-tolerance,
L3
FECMOD
2, 4, 6, 8mA
P3
FEDMO
3.3V LVTTL
5V-tolerance,
T1
FEEJECT_
3.3V LVTTL
5V-tolerance,
R1
FEFG
N1
FEFMO
N2
FEFMO2
N3
FEFMO3
M3
FEFMO4
H4
FOO
A3
FPDOCD
Analog Input
C4
FPDODVD
Analog Input
L2
FEGAINSW1
M2
FEGAINSW2
L1
FEGAINSW3
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Type Description
High frequency modulation mode selection signal output, or
I/O, LDD serial interface command enable. The pin is spike-free at
power-on stage.
Slow slew,
PDR,
75K pull-
down (0V)
Analog Disk motor control output. DAC output.
Output
Eject/stop key input, active low. The pin is spike-free at power-
I/O, on stage.
Alternate function :
6 mA PDR, General IO.
75K pull-up
(3.3V)
Motor Hall sensor input. The pin is spike-free at power-on
I/O, stage.
6 mA PDR,
75K pull-up
(3.3V)
Analog Feed motor 1 control. DAC output.
Output
Analog Feed motor 2 control. DAC output.
Output
Feed motor 3 control. DAC output.
Analog I/O
Alternative Function : Auxiliary servo input
Feed motor 4 control. DAC output.
Analog I/O
Alternative Function : Auxiliary servo input
Analog Focus servo output. PDM output of focus servo compensator.
Output
Laser Power Monitor Input for CD APC / Differential negative
input
Laser Power Monitor Input for DVD APC / Differential positive
input
Analog Read gain switch. 1
Output
Analog Read gain switch 2.
Output
Read gain switch 3.
Analog
Output