Philips HTB3510/12 Service Manual page 71

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Pin Symbol
3.3V LVTTL
5V-tolerance,
K3
FEOSCEN
2, 4, 6, 8mA
G2
RFIN
Analog Input
H2
RFIN2
Analog Input
G1
RFIP
Analog Input
H1
RFIP2
Analog Input
J3
TLO
3.3V LVTTL
5V-tolerance,
T2
FETRAYIN_
3.3V LVTTL
5V-tolerance,
U4
FETRAYOUT_
P2
FETRAYPWM
A2
TRINA
Analog Input
B3
TRINB
Analog Input
A1
TRINC
Analog Input
B2
TRIND
Analog Input
J2
TRO
H3
V14
E5
VDAC0
B4
FVREF
C6
VWDC2O
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Type Description
High frequency modulation enable signal output, or LDD serial
I/O, interface CLK or I2C SCL. The pin is spike-free at power-on
stage.
Slow slew,
PDR,
75K pull-up
(3,3V)
Differential Input of AC Coupling RF SUM Signal (Negative)
Differential Input of AC Coupling RF SUM Signal (Negative)
Differential Input of AC Coupling RF SUM Signal (Positive)
Differential Input of AC Coupling RF SUM Signal (Positive)
Analog Tilt servo output
Output
Tray_is_in Input, A Logical Low Indicates the Tray is IN.
I/O, Feedback Flag is from Tray Connector. The pin is spike-free
at power-on stage.
6 mA, Alternate function :
75K pull-up General IO.
(3.3V)
Tray_is_out Input. A Logical Low Indicates the Tray is OUT.
I/O, Feedback Flag is from Tray Connector. The pin is spike-free
at power-on stage.
6 mA,
Alternate function :
75K pull-up
General IO.
(3.3V)
Analog Tray DAC / PWM control output. Controlled by P.
Output
Input of Tracking Signal (A)
Input of Tracking Signal (B)
Input of Tracking Signal (C)
Input of Tracking Signal (D)
Analog Tracking servo output. PDM output of tracking servo
Output compensator.
Analog Output of Voltage Reference (1.4V)
Output
Analog Output of General DAC
Output
Analog Output of Voltage Reference
Output
Analog Output Voltage 2 of Laser Diode Control in APC
Output