Sony DHC-EX880MD / DHC-MD717 / MDS-EX880 / MDS-MS717 Service Manual ▷ View online
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MAIN BOARD IC305
µ
PD78078GF-082-3BA (MASTER CONTROLLER)
Pin No.
Pin Name
I/O
Function
1 to 4
DATA0 to
DATA3
I/O
Two-way data bus with the system control bus
5
CLOCK OUT
O
Bus data transfer clock signal output terminal for the system control bus
6, 7
NC
I
Not used (fixed at “L”)
8
POW DOWN
I
Power down detection signal input terminal “L”: power down, normally: “H”
9
VSS
—
Ground terminal
10
X2
O
Main system clock output terminal (5 MHz)
11
X1
I
Main system clock input terminal (5 MHz)
12
VDD
—
Power supply terminal (+5V)
13
XT2
O
Sub system clock output terminal Not used (open)
14
XT1
I
Sub system clock input terminal Not used (fixed at “H”)
15
RESET
I
System reset signal input from the reset signal generator (IC316) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
16
CLOCK IN
I
Bus data reading clock signal input for the system control bus
17
BUS BUSY
I/O
Busy signal in/out terminal for the system control bus
18
SENSOR (MAIN)
I
Detection signal input from the elevator position sensor (D1; MAIN side)
19
JOG A
I
Jog dial pulse (A) input from the rotary encoder (S661) (for SELECTOR)
20
JOG B
I
Jog dial pulse (B) input from the rotary encoder (S661) (for SELECTOR)
21, 22
NC
I
Not used (fixed at “L”)
23
AVDD
—
Power supply terminal (+5V) (for A/D converter)
24
AVREF0
I
Reference voltage (+5V) input terminal (for A/D converter)
25
KEY0
I
Key input terminal (A/D input) (S700 to S707) DISPLAY, PROGRAM, SHUFFLE,
CONTINUE, DISC SKIP, REPEAT, REC IT, CD SYNC keys input
CONTINUE, DISC SKIP, REPEAT, REC IT, CD SYNC keys input
26
KEY1
I
Key input terminal (A/D input) (S711 to S713, S716 and S718)
MD1 to MD3,
MD1 to MD3,
fl, ENTER/YES keys input
27
KEY2
I
Key input terminal (A/D input) (S721 to S723 and S726 to S728)
REC 1 to REC 3,
REC 1 to REC 3,
p, RELEASE, MENU/NO keys input
28
KEY3
I
Key input terminal (A/D input) (S708 and S709)
0, ) keys input
29
SERIAL
I
Input terminal for the SERIAL/UART setting
“L”: SERIAL, “H”: UART (fixed at “L” in this set)
“L”: SERIAL, “H”: UART (fixed at “L” in this set)
30
3DISC
I
Input terminal for the MD changer type setting
“L”: 3 discs, “H”: 5 discs (fixed at “L” in this set)
“L”: 3 discs, “H”: 5 discs (fixed at “L” in this set)
31
FL13
I
Input terminal for the figure number setting of display
“L”: 14 figures, “H”: 13 figures (fixed at “H” in this set)
“L”: 14 figures, “H”: 13 figures (fixed at “H” in this set)
32
SEPARATE
I
Input terminal for the separate/complete type setting of MD section and other sections
“L”: complete type, “H”: separate type (fixed at “H” in this set)
“L”: complete type, “H”: separate type (fixed at “H” in this set)
33
AVSS
—
Ground terminal (for A/D converter)
34
LOAD DA
O
D/A output of loading motor drive signal Not used (open)
35
ELV DA
O
D/A output of elevator motor drive signal Not used (open)
36
AVREF1
I
Reference voltage (+5V) input terminal (for D/A converter)
37
UART RXD
I
Receive data input of UART data Not used (open)
38
UART TXD
O
Transmit data output of UART data Not used (open)
39
NC
I
Not used (fixed at “L”)
40
VSS
—
Ground terminal
41
NC
I
Not used (fixed at “L”)
42
FL DATA
O
Serial data output to the fluorescent indicator tube driver (IC701)
43
FL CLOCK
O
Serial data transfer clock signal output to the fluorescent indicator tube driver (IC701)
44
FL CL
O
Chip enable signal output to the fluorescent indicator tube driver (IC701) “L” active
– 60 –
Pin No.
Pin Name
I/O
Function
45
FL RES
O
Forced reset signal output to the fluorescent indicator tube driver (IC701) “L”: forced reset
46
SIO RXD
I
UART data input from the MD mechanism controller (IC316)
47
SIO TXD
O
UART data output to the MD mechanism controller (IC316)
48
SIO CLK
O
Serial data transfer clock signal output to the MD mechanism controller (IC316)
49
RTS
O
UART data transmission request signal output to the MD mechanism controller (IC316)
“L”: busy status
“L”: busy status
50
CTS
I
UART data reception request signal input from the MD mechanism controller (IC316)
“L”: busy status
“L”: busy status
51
OEMREST
O
Reset signal output to the MD mechanism controller (IC316) “H”: reset
52
SENSOR (SUB)
I
Detection signal input from the elevator position sensor (D2; SUB side)
53
NC
I
Not used (fixed at “L”)
54
DIG
O
LED drive signal output for the DIGITAL IN indicator (D703) “L”: LED on
55
ANA
O
LED drive signal output for the ANALOG IN indicator (D702) “L”: LED on
56
MONO
O
LED drive signal output for the MONO indicator (D701) “L”: LED on
57
LED REST
O
Reset signal output to the LED driver (IC702) “L”: reset
58
LED LATCH
O
Serial data latch pulse output to the LED driver (IC702)
59
LED CLOCK
O
Serial data transfer clock signal output to the LED driver (IC702)
60
LED DATA
O
Serial data output to the LED driver (IC702)
61 to 63
NC
I
Not used (fixed at “L”)
64
CONTINUE
O
LED drive signal output for the CONTINUE indicator (D712) “H”: LED on
65
SHUFFLE
O
LED drive signal output for the SHUFFLE indicator (D713) “H”: LED on
66
PROGRAM
O
LED drive signal output for the PROGRAM indicator (D714) “H”: LED on
67
CD SYNC
O
LED drive signal output for the CD SYNC indicator (D704) “H”: LED on
68
REC IT
O
LED drive signal output for the REC IT indicator (D705) “H”: LED on
69, 70
NC
I
Not used (fixed at “L”)
71
VSS
—
Ground terminal
72, 73
NC
I
Not used (fixed at “L”)
74, 75
MDMSPEED
I
Input terminal for the PWM setting (fixed at “L” in this set)
76
MDMSPEED
I
Input terminal for the PWM setting (fixed at “H” in this set)
77 to 81
MDMSPEED
I
Input terminal for the PWM setting (fixed at “L” in this set)
82
LD IN
O
Motor drive signal output to the loading motor drive (IC308) “L” active *1
83
LD OUT
O
Motor drive signal output to the loading motor drive (IC308) “L” active *1
84
ELV UP
O
Motor drive signal output to the elevator up/down motor drive (IC309) “L” active *2
85
ELV DW
O
Motor drive signal output to the elevator up/down motor drive (IC309) “L” active *2
86
INT SW
I
Detection input from the elevator position detect switch (S8)
The elevator is home position when “L”
The elevator is home position when “L”
87
DISC1 SW
I
Detection input from the disc 1 detect switch (S1) “L”: disc 1 in
*1 Loading motor (M903) control
LD IN (pin *™)
“L”
“H”
“H”
“L”
LD OUT (pin *£)
“H”
“L”
“H”
“L”
Function
Terminal
LOAD IN
LOAD OUT
BRAKE
RUN IDLE
*2 Elevator up/down motor (M904) control
ELV UP (pin *¢)
“L”
“H”
“H”
“L”
ELV DW (pin *∞)
“H”
“L”
“H”
“L”
Function
Terminal
ELEVATOR
UP
ELEVATOR
DOWN
BRAKE
RUN IDLE
– 61 –
Pin No.
Pin Name
I/O
Function
88
DISC2 SW
I
Detection input from the disc detect switch “L”: disc in Not used (fixed at “H”)
89
DISC3 SW
I
Detection input from the disc 2 detect switch (S3) “L”: disc 2 in
90
DISC4 SW
I
Detection input from the disc detect switch “L”: disc in Not used (fixed at “H”)
91
DISC5 SW
I
Detection input from the disc 3 detect switch (S5) “L”: disc 3 in
92
OUT SW
I
Detection input from the loading out detect switch (S11) “L” at a load-out position, others: “H”
93
IN SW
I
Detection input from the loading in detect switch (S10) “L” at a load-in position, others: “H”
94
NC
I
Not used (fixed at “L”)
95
ATTENUATE
O
–6 dB attenuate control signal output of the MD analog input Not used (open)
96
DIG IN SEL0
O
Control signal output to the optical in selection circuit (IC306) *3
97
MDM RESET SW
I
Reset switch (S9) input of the mini-disc “L”: reset
98
KANA
I
Input terminal for the Japanese letter in function setting
“L”: input possible (fixed at “H” in this set)
“L”: input possible (fixed at “H” in this set)
99
DIG IN SEL1
O
Control signal output to the optical in selection circuit (IC306) *3
100
NC
I
Not used (fixed at “L”)
*3 Optical in select control
DIG IN SEL0 (pin (§)
“L”
“H”
“L”
“H”
DIG IN SEL1 (pin (ª)
“L”
“L”
“H”
“H”
( ): MDS-MS717
Function
Terminal
CD
VIDEO 1
(CS/BS)
VIDEO 2
(LD/DVD)
OTHERS
– 62 –
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BD BOARD IC316 M30610MCA-253FP (MD MECHANISM CONTROLLER)
Pin No.
Pin Name
I/O
Function
1
JOG0
I
JOG dial pulse input of the rotary encoder Not used (fixed at “L”)
2
JOG1
I
JOG dial pulse input of the rotary encoder Not used (fixed at “L”)
3, 4
—
I
Not used (fixed at “L”)
5
SQSY
I
Subcode Q sync (SCOR) input from the CXD2652AR (IC121)
“L” is input every 13.3 msec Almost all, “H” is input
“L” is input every 13.3 msec Almost all, “H” is input
6
REMCON
I
Remote control signal input terminal Not used (fixed at “H”)
7
EMP
O
Emphasis control signal output to the A/D, D/A converter (IC201)
8
BYTE
I
External data bus line byte selection signal input of the master controller (IC305)
“L”: 16 bit, “H”: 8 bit (fixed at “L”)
“L”: 16 bit, “H”: 8 bit (fixed at “L”)
9
CNVSS
—
Ground terminal
10
XIN-T
I
Sub system clock input terminal Not used (fixed at “L”)
11
XOUT-T
O
Sub system clock output terminal Not used (pull down)
12
SYSTEM-RST
I
System reset signal input from the master controller (IC305) and reset signal generator (IC317)
“L”: reset For several hundreds msec. after the power supply rises, “L” is input, then it changes
to “H”
“L”: reset For several hundreds msec. after the power supply rises, “L” is input, then it changes
to “H”
13
XOUT
O
Main system clock output terminal (7 MHz)
14
GND
—
Ground terminal
15
XIN
I
Main system clock input terminal (7 MHz)
16
+3.3V
—
Power supply terminal (+3.3V)
17
—
I
Not used (fixed at “H”)
18
AMUTE
O
Muting control signal output terminal Not used (open)
19
PWR-DWN
I
Power down detection signal input terminal “L”: power down, normally: “H”
20
DQSY
I
Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2652AR (IC121)
“L” is input every 13.3 msec Almost all, “H” is input
“L” is input every 13.3 msec Almost all, “H” is input
21
STB
O
Strobe signal output to the external device “H”: power on, “L”: standby mode
Not used (pull down)
Not used (pull down)
22
DA-RST
O
Reset signal output terminal “L”: reset Not used (pull down)
23
XINT
I
Interrupt status input from the CXD2652AR (IC121)
24
DA-EN
O
Enable signal output to the A/D, D/A converter (IC201) (for D/A converter block)
25
AD-EN
O
Enable signal output to the A/D, D/A converter (IC201) (for A/D converter block)
26
MEC-BUSY
O
Mechanism controller busy status monitor output to the master controller (IC305)
27
FLCS
O
Chip select signal output for the display indicate Not used (pull down)
28
FLCLK
O
Serial data transfer clock signal output for the display indicate Not used (pull down)
29
—
I
Not used (fixed at “L”)
30
FLDATA
O
Serial data output for the display indicate Not used (pull down)
31
TXD
O
UART data output to the master controller (IC305)
32
RXD
I
UART data input from the master controller (IC305)
33
CLK
I
Serial data transfer clock signal input from the master controller (IC305)
34
MAS-BUSY
I
Master controller busy status monitor input from the master controller (IC305)
35
SWDT
O
Writing data output to the CXD2652AR (IC121)
36
SRDT
I
Reading data input from the CXD2652AR (IC121)
37
SCLK
O
Serial clock signal output to the CXD2652AR (IC121)
38
XLAT
O
Serial latch signal output to the CXD2652AR (IC121)
39
—
I
Not used (fixed at “L”)
40
DIG-RST
O
Reset signal output to the CXD2652AR (IC121) and BH6511FS (IC152) “L”: reset
41
SENS
I
Internal status (SENSE) input from the CXD2652AR (IC121)
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