Onkyo DV-SP303 Service Manual page 52

IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
IC8K089D(MT1389D) : (DVD MT ASSY : IC4001)
MPEG/MICON/RF-AMP CPU
Pin Function
No. Pin Name I/O
1 AGND –
2 DVDA I
3 DVDB I
4 DVDC I
5 DVDD I
6 DVDRFIP I
7 DVDRFIN I
8 MA I
9 MB I
10 MC I
11 MD I
12 SA I
13 SB I
14 SC I
15 SD I
16 CDFON I
17 CDFOP I
18 TNI I
19 TPI I
20 MDI1 I
21 MDI2 I
22 LDO2 O
23 LDO1 O
24 SVDD3 –
25 CSO O
26 RFLVL O
27 SGND –
28 V2REFO –
29 V20 I/O
30 VREFO I/O
31 FEO O
32 TEO O
33 TEZISLV I/O
34 OP_OUT O
35 OP_INN I
36 OP_INP I
37 DMO O
38 FMO O
39 TROPENP/WM O
40 PWMOUT1 O
41 TRO O
42 FOO O
43 FG(Diogital pin) –
44 GPIO0 I/O
45 GPIO1 I/O
46 GPIO2 I/O
47 IOA2 I/O
Pin Function
Analog ground
AC coupled input path A
AC coupled input path B
AC coupled input path C
AC coupled input path D
AC coupled DVD RF signal input RFIP
AC coupled DVD RF signal input RFIN
DC coupled main-beam RF signal input A
DC coupled main-beam RF signal input B
DC coupled main-beam RF signal input C
DC coupled main-beam RF signal input D
DC coupled sub-beam RF signal input A
DC coupled sub-beam RF signal input B
DC coupled sub-beam RF signal input C
DC coupled sub-beam RF signal input D
CD focusing error negative input
CD focusing error positive input
3 beam satellite PD signal negative input
3 beam satellite PD signal positive input
Laser power monitor input
Laser power monitor input
Laser driver output
Laser driver output
Analog power 3.3V
Central servo/Positive main beam summing output
RFRP low pass, or Negative main beam summing output
Analog ground
Reference voltage 2.8V
Reference voltage 2.0V
Reference voltage 1.4V
Focus error monitor output
Tracking error monitor output
TE Slicing Level
Op amp output
Op amp negative input
Op amp positive input
Disk motor control output. PWM output
Feed motor control. PWM output
Tray PWM output/Tray open output
st
1 General PWM output, or Version AD input9
Tracking servo output. PDM output of
tracking servo compensator.
Focus servo output. PDM output of
focus servo compensator
Motor Hall sensor input, or Version AD input 8 circuitry
Vertical sysnc input / output
Horizontal sysnc input / output
Audio DAC master clock of SPDIF input
Microcontroller address 2/IO
No. Pin Name I/O
1.8V Power pin for internal digital
48 DVDD18 -
circuitry
Microcontroller address 3/IO
49 IOA3 I/O
IOA4
50 I/O Microcontroller address 4/IO
Microcontroller address 5 / IO
51 IOA5 I/O
52 IOA6 I/O Microcontroller address 6/IO
IOA7
53 I/O Microcontroller address 7/IO
Microcontroller address 8
54 HIGHA0 I/O
55 IOA18 I/O Flash address 18/IO
–
DVSS 3.3V Ground pin for internal digital circuitry
56
I/O Microcontroller address 4/IO
IOA19
57
DVDD3 - 3.3VPower pin for internal digital circuitry
58
IOWR# Flash write enable, active low/IO
59 I/O
A16 O Flash adress 16
60
3.3VPower pin for internal digital circuitry
DVDD3 -
61
I/O
62 HIGHA7 Microcontroller address 15
I/O
HIGHA6 Microcontroller address 14
63
I/O Microcontroller address 13
64 HIGHA5
HIGHA4 I/O Microcontroller address 12
65
HIGHA3
66 I/O Microcontroller address 11
HIGHA2 I/O Microcontroller adress 10
67
HIGHA1 Microcontroller adress 9
68 I/O
IOA20 I/O Flash adress 20/IO
69
IOCS# I/O
70 Flash chip select, active low/IO
–
71 DVSS 1.8V Ground pin for internal digital circuitry
72 I/O Microcontroller address 1/IO
IOA1
I/O
IOOE# Flash output enable, active low/IO
73
–
74 DVSS 3.3V Ground pin for internal digital circuitry
AD0 I
Microcontroller address/data 0
75
AD1 I
76 Microcontroller address/data 1
I Microcontroller address/data 2
77 AD2
78 AD3 I Microcontroller address/data 3
Microcontroller address/data 4
79 AD4 I
AD5 Microcontroller address/data 5
80 I
AD6 I
Microcontroller address/data 6
81
Flash address 21/IO
82 IOA21 I/O
While External FLASH size <= 2MB:
Version AD input port 0, or
GPIO
83 ALE I/O Microcontroller address latch enable
1.8V power pin for internal digital circuitry
84 DVDD18 –
Microcontroller address/data 7
AD7
85
I
O
86 A17 Flash adress 17
– 3.3VPower pin for internal digital circuitry
87 DVDD3
88
IOA0 I/O Flash adress 0 / IO
89
UWR# I/O Microcontroller writer strobe, active low
URD# I/O
90
Microcontroller read strobe, active low
DV-SP303
Pin Function