Sony DVP-K870P (serv.man2) Service Manual ▷ View online
DVP-K870P
1
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Diagrama esquemático
• Refer to page 4-29 for printed wiring board of Power Board.
53
1
POWER BOARD
POWER BLOCK (SRV1501WW)
PLACA DA FONTE
(SR
V1501WW)
-REF
.NO
.:1000 SERIES-
XX MARK:NO MOUNT
S/ INDICAÇÃO: MODO PB
MARKED:MOUNT T
ABLE
Not
a
:
Os componentes identificados com
são críticos para a
segurança.Somente os substitua por peças especificadas
neste manual
neste manual
54
SEÇÃO 5
DESCRIÇÃO DA FUNÇÃO DOS PINOS DO IC
DVP-K870P
Pin No. Descrição Tipo Função
1
IREF
Analog Input
Current reference input. It generates reference current for data PLL.
Connect an external 100K resistor to this pin and PLLVSS.
Connect an external 100K resistor to this pin and PLLVSS.
2
PLLVSS
Ground
Ground pin 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 amplifier
6
LPFIP
Analog Input
Positive input of loop filter amplifier
7
LPFIN
Analog Input
Negative input of loop filter amplifier
8
LDFOP
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
3.3V power pin 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 Output
Tray open output, controlled by microcontroller.
This is PWM output for TRWMEN27hRW2=1 or is digital output for
TRWMEN27hRW2=0
This is PWM output for TRWMEN27hRW2=1 or is digital output for
TRWMEN27hRW2=0
15
PWMOUT1
Analog Output
The 1st general PWM output
16
PWMOUT2
Analog Output
The 2nd general PWM output
17
DVDD2
Power
2.5V power pin for internal fully digital circuitry
18
DMO
Analog Output
Disk motor control output. PWM output
19
FMO
Analog Output
Feed motor control. PWM output
20
DVSS
Ground
Ground pin for internal fully digital circuitry
21
FG
Input
Motor Hall sensor input
22
HIGHA0
Inout
Microcontroller address 8
2~16MA, SR
PU
23
HIGHA1
Inout
Microcontroller address 9
2~16MA, SR
PU
24
HIGHA2
Inout
Microcontroller address 10
2~16MA, SR
PU
25
HIGHA3
Inout
Microcontroller address 11
2~16MA, SR
PU
26
HIGHA4
Inout
Microcontroller address 12
2~16MA, SR
PU
27
HIGHA5
Inout
Microcontroller address 13
2~16MA, SR
PU
28
DVSS
Ground
Ground pin for internal digital circuitry
29
HIGHA6
Inout
Microcontroller address 14
2~16MA, SR
PU
30
HIGHA7
Inout
Microcontroller address 15
2~16MA, SR
PU
31
AD7
Inout
Microcontroller address/data 7
2~16MA, SR
32
AD6
Inout
Microcontroller address/data 6
2~16MA, SR
33
AD5
Inout
Microcontroller address/data 5
2~16MA, SR
5-1. MICROPROCESSADOR - FUNÇÃO DOS PINOS
(PLACA MV-044 IC201)
55
Pin No.
Pin name
Type
Function
34
AD4
Inout
Microcontroller address/data 4
2~16MA, SR
35
DVDD3
Power
3.3V power pin for internal digital circuitry
36
AD3
Inout
Microcontroller address/data 3
2~16MA, SR
37
AD2
Inout
Microcontroller address/data 2
2~16MA, SR
38
AD1
Inout
Microcontroller address/data 1
2~16MA, SR
39
AD0
Inout
Microcontroller address/data 0
2~16MA, SR
40
IOA0
Inout
Microcontroller address 0/10
2~16MA, SR
PU
41
IOA1
Inout
Microcontroller address 1/10
2~16MA, SR
PU
42
DVDD2
Power
2.5V power pin for internal digital circuitry
43
IOA2
Inout
Microcontroller address 2/10
2~16MA, SR
PU
44
IOA3
Inout
Microcontroller address 3/10
2~16MA, SR
PU
45
IOA4
Inout
Microcontroller address 4/10
2~16MA, SR
PU
46
IOA5
Inout
Microcontroller address 5/10
2~16MA, SR
PU
47
IOA6
Inout
Microcontroller address 6/10
2~16MA, SR
PU
48
IOA7
Inout
Microcontroller address 7/10
2~16MA, SR
PU
49
A16
Output
Flash address 16
2~16MA, SR
50
A17
Output
Flash address 17
2~16MA, SR
51
IOA18
Inout
Flash address 18/10
2~16MA, SR
SMT
52
IOA19
Inout
Flash address 19/10
2~16MA, SR
SMT
53
IOA20
Inout
Flash address 20/10
2~16MA, SR
OR Videoin Data PortB 0
SMT
54
APLLVSS
Ground
Ground pin for audio clock circuitry
55
APLLVDD3
Power
3.3V Power pin for audio clock circuitry
56
ALE
Inout
Microcontroller address latch enable
2~16MA, SR
PU, SMT
57
IOOE#
Inout
Flash output enable, active low / 10
2~16MA, SR
SMT
58
IOWR#
Inout
Flash write enable, active low / 10
2~16MA, SR
SMT
56
Pin No.
Pin name
Type
Function
59
IOCS#
Inout
Flash chip select, active low / 10
2~16MA, SR
PU, SMT
60
DVSS
Ground
Ground pin for internal digital circuitry
61
UP1_2
Inout
Microcontroller port 1-2
4MA, SR
PU, SMT
PU, SMT
62
UP1_3
Inout
Microcontroller port 1-3
4MA, SR
PU, SMT
PU, SMT
63
UP1_4
Inout
Microcontroller port 1-4
4MA, SR
PU, SMT
PU, SMT
64
UP1_5
Inout
Microcontroller port 1-5
4MA, SR
PU, SMT
PU, SMT
65
UP1_6
Inout
Microcontroller port 1-6
4MA, SR
PU, SMT
PU, SMT
66
DVDD3
Power
3.3V power pin for internal digital circuitry
67
UP1_7
Inout
Microcontroller port 1-7
4MA, SR
PU, SMT
PU, SMT
68
UP3_0
Inout
Microcontroller port 3-0
4MA, SR
PU, SMT
PU, SMT
69
UP3_1
Inout
Microcontroller port 3-1
4MA, SR
PU, SMT
PU, SMT
70
INT0#
Inout
Microcontroller interrupt 0, active low
2~16MA, SR
PU, SMT
71
IR
Input
IR control signal input
SMT
72
DVDD2
Power
2.5V power pin for internal digital circuitry
73
UP3_4
Inout
Microcontroller port 3-4
74
UP3_5
Inout
Microcontroller port 3-5
75
UWR#
Inout
Microcontroller write strobe, active low
2~16MA, SR
PU, SMT
76
URD#
Inout
Microcontroller read strobe, active low
2~16MA, SR
PU, SMT
77
DVSS
Ground
Ground pin for internal digital circuitry
78
RD7
Inout
DRAM data 7
79
RD6
Inout
DRAM data 6
80
RD5
Inout
DRAM data 5
81
RD4
Inout
DRAM data 4
82
DVDD2
Power
2.5V power pin for internal digital circuitry
83
RD3
Inout
DRAM data 3
84
RD2
Inout
DRAM data 2
85
RD1
Inout
DRAM data 1
86
RD0
Inout
DRAM data 0
87
RWE#
Output
DRAM Write enable, active low
2~16MA, SR
88
CAS#
Output
DRAM columnaddress strobe, active low
2~16MA, SR
89
RAS#
Output
DRAM row address strobe, active low
2~16MA, SR
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