Pioneer DVR-520H-S Service Manual page 143

5
(8) Power supply and ground pins
No. Pin Name
5, 31, 52, 63,
78, 95, 127, 3.3VDD
140, 166, 187
14, 67,
2.5VDD
118, 170
39, 91,
2.5GND
144, 195
9, 35, 56, 68,
82, 99, 131, 3.3GND
148, 173, 188
199 PLLAVDD
200 PLLAGND
198 PLLDVDD
201 PLLDGND
121 IC (H)
197, 203,
IC (L)
205-207
152, 154, 204 IC (PL)
100, 122 IC (O)
(9) Others
No. Pin Name
153 DV_INT
155 BR_MON
208 IFIROME
5
6
I/O
3.3V power supply
−
3.3V positive power supply pins. Power supply for 3.3V interface I/O.
2.5V power supply
−
2.5V positive power supply pins. Power supply for internal each block.
Ground pins
−
Connect all GND pins to the common ground.
Analog power supply for multiply circuit
−
Analog positive power supply pin for PLL. Supply 2.5V.
Analog ground for multiply circuit
−
Analog ground for PLL
Digital power supply for multiply circuit
−
Digital positive power supply pin for PLL. Supply 2.5V.
Digital ground for multiply circuit
−
Digital ground for PLL
Internally connected pin
−
Connect to VDD directly.
Internally connected pin
−
Connect to ground directly.
Internally connected pin
−
Connect to ground through a resistor.
Internally connected pin
−
Set to open.
I/O
I/O Interrupt pin to the outside for the DV status read out.
Shows the bus reset occurred. There is some delay after real bus reset occurred
I/O
because of set by the built-in firmware.
ROM operation selection input
I
Set to 1 normally.
DVR-520H-S
6
7
Function
Function
7
8
Active
A
−
−
−
−
−
B
−
−
−
−
−
C
−
−
Active
H
D
H
−
E
F
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