Irradio DVD-636, Service Manual

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9
PIN DESCRIPTON
PIN Symbol Type Description
1 IREF Analog Input
Current reference input.it generate reference current for data PLL
Connect an external 100K resistor to this pin and PLLVSS.
2 PLLVSS Ground Ground for data PLL and related analog circuitry
3 LPIOP Analog output Positive output of the low pass filter
4 LPION Analog output Negative output of the low pass filter
5 LPFON Analog output Negative output of loop filter amplifiter
6 LPFIP Analog input Positive input of loop filter amplifier
7 LPFIN Analog input Negative input of loop filter amplifier
8 LPFOP Analog output Positive output of loop filter amplifier
9 JITFO Analog output RF jitter meter output
10 JITFN Analog input Negative input of the operation amplifier for RF jigger meter
11 PLLVDD3 Power Power for data PLL and related analog circuitry
12 FOO Analog output Focus servo output. PDM output of focus servo compensator
13 TRO Analog output Tracking servo output.PDM output of tracking servo compensator
14 TROPENPWM Analog outpu
Tray open output,controlled by microcontroller.
This is PWM output for TRWMEN
27hRW2
=1 or is digital output for
TRWMEN
27Hrw2
=0
16 PWMOUT2 Analog outpu The general PWM output
17 DVDD2 Power 2.5V power
18 DMO Analog outpu Disk motor control output.PWM output
19 FMO Analog outpu Feed motor control. PWM output
20 FG Inout, pull up Motor Hall sensor input
21 DVSS Ground Ground
22 HIGHA0 Inout, pull up Microcontroller address 8
23 HIGHA1 Inout, pull up Microcontroller address 9
24 HIGHA2 Inout, pull up Microcontroller address 10
25 HIGHA3 Inout, pull up Microcontroller address 11
26 HIGHA4 Inout, pull up Microcontroller address 12
27 HIGHA5 Inout, pull up Microcontroller address 13
28 DVSS Ground Ground
29 HIGHA6 Inout, pull up Microcontroller address 14
30 HIGHA7 Inout, pull up Microcontroller address 15
31 AD7 Inout Microcontroller address/data 7
32 AD6 Inout Microcontroller address/data 6
33 AD5 Inout Microcontroller address/data 5
34 AD4 Inout Microcontroller address/data 4
35 DVDD3 Power 3.3V power
36 AD3 Inout Microcontroller address/data 3
37 AD2 Inout Microcontroller address/data 2
38 AD1 Inout Microcontroller address/data 1
39 AD0 Inout Microcontroller address/data 0
40 IOA0 Inout, pull up Microcontroller address 0/GPIO0
41 IOA1 Inout, pull up Microcontroller address 0/GPIO1
42 DVDD2 Power 2.5V power
43 IOA2 Inout, pull up Microcontroller address 0/GPIO2
44 IOA3 Inout, pull up Microcontroller address 0/GPIO3
45 IOA4 Inout, pull up Microcontroller address 0/GPIO4
46 IOA5 Inout, pull up Microcontroller address 0/GPIO5
47 IOA6 Inout, pull up Microcontroller address 0/GPIO6
48 IOA7 Inout, pull up Microcontroller address 0/GPIO7
49 A16 Outpu Flash address 16
50 A17 Output Flash address 17
51 IOA18 Inout Flash address 18 / GPIO10
52 IOA19 Inout Flash address 19 / GPIO11
53 IOA20 Inout Flash address20 / GPIO12
54 APLLVSS3 Ground Ground