Onkyo DV-SP303 Service Manual page 46

IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
MT1389FE/C2-L (DVD MT ASSY : IC4002)
MPEG/MICON/RF-AMP CPU
Pin Function
No. Pin Name I/O
1 AGND – Analog ground
2 DVDA I AC coupled input path A
3 DVDB I AC coupled input path B
4 DVDC I AC coupled input path C
5 DVDD I AC coupled input path D
6 DVDRFIP I AC coupled DVD RF signal input RFIP
7 DVDRFIN I AC coupled DVD RF signal input RFIN
8 MA I DC coupled main-beam RF signal input A
9 MB I DC coupled main-beam RF signal input B
10 MC I DC coupled main-beam RF signal input C
11 MD I DC coupled main-beam RF signal input D
12 SA I DC coupled sub-beam RF signal input A
13 SB I DC coupled sub-beam RF signal input B
14 SC I DC coupled sub-beam RF signal input C
15 SD I DC coupled sub-beam RF signal input D
16 CDFON I CD focusing error negative input
17 CDFOP I CD focusing error positive input
18 TNI I 3 beam satellite PD signal negative input
19 TPI I 3 beam satellite PD signal positive input
20 MDI1 I Laser power monitor input
21 MDI2 I Laser power monitor input
22 LDO2 O Laser driver output
23 LDO1 O Laser driver output
24 SVDD3 – Analog power 3.3V
25 CSO O Central servo/Positive main beam summing output
26 RFLVL O RFRP low pass, or Negative main beam summing output
27 SGND – Analog ground
28 V2REFO – Reference voltage 2.8V
29 V20 I/O Reference voltage 2.0V
30 VREFO I/O Reference voltage 1.4V
31 FEO O Focus error monitor output
32 TEO O Tracking error monitor output
33 TEZISLV I/O TE Slicing Level
34 OP_OUT O Op amp output
35 OP_INN I Op amp negative input
36 OP_INP I Op amp positive input
37 DMO O Disk motor control output. PWM output
38 FMO O Feed motor control. PWM output
39 TROPENP/WM O Tray PWM output/Tray open output
st
40 PWMOUT1 O 1
41 TRO O Tracking servo output. PDM output of
tracking servo compensator.
42 FOO O Focus servo output. PDM output of
focus servo compensator
43 DVSS – 1.8V Ground pin for internal digital
44 NC – –
45 NC – –
46 DVDD3 – 3.3V power pin for internal digital circuitry
47 FG(Diogital pin) – Motor Hall sensor input, or Version AD input 8
Pin Function
General PWM output, or Version AD input9
No. Pin Name I/O
Serial interface port 3 data-out
48 TDI I
Version AD input port 4
GPIO
Serial interface port 3 data-in
49 TMS I
Version AD input port 5
GPIO
Serial interface port 3 clock pin
50 TCK I
Version AD input port 6
GPIO
Serial interface port 3 chip-select
51 TDO I
Version AD input port 7
GPO
52 DVDD18 – 1.8V power pin for internal digital circuitry
53 IOA2 I/O Microcontroller address 2/IO
54 IOA3 I/O Microcontroller address 3/IO
55 IOA4 I/O Microcontroller address 4/IO
56 IOA5 I/O Microcontroller address 5/IO
57 IOA6 I/O Microcontroller address 6/IO
58 IOA7 I/O Microcontroller address 7/IO
59 HIGHA0 I/O Microcontroller address 8
60 IOA18 I/O Flash address 18/IO
61 IOA19 I/O Flash address 19/IO
62 DVSS – 3.3V Ground pin for internal digital circuitry
63 APLLCAP I APLL External Capacitance connection
64 APLLVSS – Ground pin for sudio clock circuitry
65 APLLVDD3 – 3.3V Power pin for audio clock circuity
66 IOWR# I/O Flash write enable, active low/IO
67 A16 O Flash adress 16
68 HIGHA7 I/O Microcontroller address 15
69 HIGHA6 I/O Microcontroller address 14
70 HIGHA5 I/O Microcontroller address 13
71 HIGHA4 I/O Microcontroller address 12
72 HIGHA3 I/O Microcontroller address 11
73 DVDD3 – 3.3V power pin for internal digital circuitry
74 HIGHA2 I/O Microcontroller adress 10
75 HIGHA1 I/O Microcontroller adress 9
76 IOA20 I/O Flash adress 20/IO
77 IOCS# I/O Flash chip select, active low/IO
78 IOA1 I/O Microcontroller adress 1/IO
79 IOOE# I/O Flash output enable, active low/IO
80 DVDD3 – 3.3V power pin for internal digital circuitry
81 AD0 I Microcontroller address/data 0
82 AD1 I Microcontroller address/data 1
83 I Microcontroller address/data 2
AD2
84 I Microcontroller address/data 3
AD3
85 – 1.8V Ground pin for internal digital circuitry
DVSS
86 I Microcontroller address/data 4
AD4
87 AD5 I Microcontroller address/data 5
88 AD6 I Microcontroller address/data 6
89 IOA21 I/O Flash address 21/IO
While External FLASH size <= 2MB:
Version AD input port 0, or
GPIO
90 ALE I/O Microcontroller address latch enable
DV-SP303
Pin Function