Sony WX-7700MDX Service Manual ▷ View online
65
WX-7700MDX
Pin No.
Pin Name
I/O
Description
91
SRDR
O
Sled servo drive PWM signal (–) output to the BH6518FS
92
SFDR
O
Sled servo drive PWM signal (+) output to the BH6518FS
93
SPRD
O
Spindle servo drive PWM signal (–) output to the BH6518FS
94
SPFD
O
Spindle servo drive PWM signal (+) output to the BH6518FS
95
FGIN
I
Not used
96
TEST1
I
97
TEST2
I
98
TEST3
I
99
DVSS
—
Ground terminal (digital system)
100
EFMO
O
EFM signal output terminal when recording mode Not used
* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
Input terminal for the test (fixed at “L”)
66
WX-7700MDX
•
SERVO (MD) BOARD IC302 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No.
Pin Name
I/O
Description
1
I
I
I-V converted RF signal I input from the optical pick-up block detector
2
J
I
I-V converted RF signal J input from the optical pick-up block detector
3
VC
O
Middle point voltage (+1.65V) generation output terminal
4 to 9
A to F
I
Signal input from the optical pick-up detector
10
PD
I
Light amount monitor input from the optical pick-up block laser diode
11
APC
O
Laser amplifier output terminal to the automatic power control circuit
12
APCREF
I
Reference voltage input terminal for setting laser power
13
GND
—
Ground terminal
14
TEMPI
I
Connected to the temperature sensor Not used
15
TEMPR
O
Output terminal for a temperature sensor reference voltage Not used
16
SWDT
I
Writing serial data input from the MD mechanism controller
17
SCLK
I
Serial data transfer clock signal input from the MD mechanism controller
18
XLAT
I
Serial data latch pulse signal input from the MD mechanism controller
19
XSTBY
I
Standby signal input terminal “L”: standby (fixed at “H” in this set)
20
F0CNT
I
Center frequency control voltage input terminal of internal circuit (BPF22, BPF3T, EQ) input
terminal
terminal
21
VREF
O
Reference voltage output terminal Not used
22
EQADJ
I
Center frequency setting terminal for the internal circuit (EQ)
23
3TADJ
I
Center frequency setting terminal for the internal circuit (BPF3T)
24
VCC
—
Power supply terminal (+3.3V)
25
WBLADJ
I
Center frequency setting terminal for the internal circuit (BPF22)
26
TE
O
Tracking error signal output to the CXD2662R
27
CSLED
I
Connected to the external capacitor for low-pass filter of the sled error signal
28
SE
O
Sled error signal output to the CXD2662R
29
ADFM
O
FM signal output of the ADIP
30
ADIN
I
Receives a ADIP FM signal in AC coupling
31
ADAGC
I
Connected to the external capacitor for ADIP AGC
32
ADFG
O
ADIP duplex signal (22.05 kHz
±
1 kHz) output to the CXD2662R
33
AUX
O
Auxiliary signal (I3 signal/temperature signal) output terminal Not used
34
FE
O
Focus error signal output to the CXD2662R
35
ABCD
O
Light amount signal (ABCD) output to the CXD2662R
36
BOTM
O
Light amount signal (RF/ABCD) bottom hold output to the CXD2662R
37
PEAK
O
Light amount signal (RF/ABCD) peak hold output to the CXD2662R
38
RF
O
Playback EFM RF signal output to the CXD2662R
39
RFAGC
I
Connected to the external capacitor for RF auto gain control circuit
40
AGCI
I
Receives a RF signal in AC coupling
41
COMPO
O
User comparator output terminal Not used
42
COMPP
I
User comparator input terminal Not used
43
ADDC
I
Connected to the external capacitor for cutting the low band of the ADIP amplifier
44
OPO
O
User operational amplifier output terminal Not used
45
OPN
I
User operational amplifier inversion input terminal Not used
46
RFO
O
RF signal output
47
MORFI
I
Receives a MO RF signal in AC coupling
48
MORFO
O
MO RF signal output
67
WX-7700MDX
•
SERVO (MD) BOARD IC501 CXP84340-225Q (MD MECHANISM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 5
TIN3 to TIN7
I/O
Input of the 4x8 matrix test keys (“L” is always output, except in test mode) Not used
6
LOAD
O
MD loading motor control signal (loading direction) output to the MD mechanism deck section
motor driver “H” active *1
motor driver “H” active *1
7
EJECT
O
MD loading motor control signal (eject direction) output to the MD mechanism deck section
motor driver “H” active *1
motor driver “H” active *1
8, 9
NCO
O
Not used
10
MDM-ON
O
Power supply on/off control signal output of the MD mechanism deck section main power supply
and loading motor drive power supply “H”: power on
and loading motor drive power supply “H”: power on
11
E-SW
I
Inputs a MD disc loading completion detect switch detection signal
“L”: When completed of a disc loading operation
“L”: When completed of a disc loading operation
12
AG-OK
O
Output terminal of monitor in aging mode “L”: under aging, “H”: aging completed Not used
13
ADJ-OK
O
Output terminal of monitor when auto adjustment completed
“L”: aging NG, “H”: aging OK Not used
“L”: aging NG, “H”: aging OK Not used
14 to 17
NCO
O
Not used
18
DFCTSEL
I
Setting terminal for defect function
“L”: used this function , “H”: not used this function (fixed at “H” in this set)
“L”: used this function , “H”: not used this function (fixed at “H” in this set)
19
DPLLSEL
I
Setting terminal for double PLL function
“L”: used this function , “H”: not used this function (fixed at “H” in this set)
“L”: used this function , “H”: not used this function (fixed at “H” in this set)
20
EMPHSEL
I
Setting terminal for emphasis signal output
“L”: used this function , “H”: not used this function (fixed at “H” in this set)
“L”: used this function , “H”: not used this function (fixed at “H” in this set)
21
OPEN REQ
O
Front panel open/close request signal output terminal Not used
22
NCO
O
Not used
23
2M/4M
I
Setting terminal for D-RAM capacitance 2M bit or 4M bit “L”: 4M bit (external D-RAM),
“H”: 2M bit (internal D-RAM of CXD2662R) (fixed at “L” in this set)
“H”: 2M bit (internal D-RAM of CXD2662R) (fixed at “L” in this set)
24, 25
NCO
O
Not used
26
MNT0
I
Focus OK signal input from the CXD2662R “H” is input when focus is on (“L”: NG)
27
MNT1
I
Track jump detection signal input from the CXD2662R
28
MNT2
I
Busy monitor signal input from the CXD2662R
29
MNT3
I
Spindle servo lock status monitor signal input from the CXD2662R
30
RESET
I
System reset signal input from the master controller, reset signal generator and reset switch
“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”
31
TX
O
Sub system clock output terminal (32.768 kHz) Not used
32
TEX
I
Sub system clock input terminal (32.768 kHz) Not used
33
VSS
—
Ground terminal
34
EXTAL
O
Main system clock output terminal (10 MHz)
35
XTAL
I
Main system clock input terminal (10 MHz)
36
AVSS
—
Ground terminal (for analog system)
37
AVREF
I
Reference voltage input terminal (+5V) (for A/D converter)
38
INIT
I
Initial reset signal input terminal (A/D input) (fixed at “H”)
39
TEMP
I
Temperature sensor connect terminal (A/D input)
40
ACNT
I
Setting terminal for the number of load/eject aging times (A/D input) 00h – 54h (30 times), 55h –
A9h (20 times), AAh – FFh (10 times) (fixed at “L” in this set)
A9h (20 times), AAh – FFh (10 times) (fixed at “L” in this set)
41
DO-SEL
I
Setting terminal for the digital output bits (A/D input)
42
EE-CS
O
Chip select signal output to the external EEPROM device Not used
43
EE-CKO
O
Serial data transfer clock signal output to the external EEPROM device Not used
68
WX-7700MDX
*1 Loading motor (M903) control
LOAD (pin 6)
“L”
“H”
“L”
“H”
EJECT (pin 7)
“L”
“L”
“H”
“H”
Terminal
Operation
STOP
LODING
EJECT
BRAKE
Pin No.
Pin Name
I/O
Description
44
EE-SIO
I/O
Two way data bus with the external EEPROM device Not used
45
MD-SO
O
Writing serial data signal output to the CXD2662R and CXA2523AR
46
LINKOFF
O
Unilink on/off control signal output for the SONY bus interface “L”: link on, “H”: link off
Not used
Not used
47
UNIREQ
O
Data request signal output terminal (for SONY bus) “H”: request on Not used
48
UNICKIO
I/O
Serial clock signal input from the master controller
49
UNISI
I
Serial data input from the SONY bus interface
50
UNISO
O
Serial data output to the SONY bus interface
51
MD-CKO
O
Serial data transfer clock signal output to the CXD2662R and CXA2523AR
52
MD-SI
I
Reading serial data signal input from the CXD2662R
53
NCO
O
Not used
54
SENS
I
Internal status (SENSE) input from the CXD2662R
55
CC-XINT
I
Interrupt status input from the CXD2662R
56
LIMIT-IN
I
Detection input from the MD sled limit-in detect switch
The optical pick-up is inner position when “L”
The optical pick-up is inner position when “L”
57
EJT-KEY
I
Front panel status signal input terminal “H”: front panel full open Not used
58
ERROR-PWM
O
PWM error monitor output terminal (C1error rate and ATER is output when test mode)
Not used
Not used
59
MD-RST
O
Reset signal output to the CXD2662R and BH6518FS “L”: reset
60
BU-IN
I
Back-up power supply detect signal input from the SONY bus interface
“L” is input at low voltage
“L” is input at low voltage
61
BUS-ON
I
SONY bus on/off control signal input from the master controller “L”: bus on
62
SQSY
I
Subcode Q sync (SCOR) input from the CXD2662R
“L” is input every 13.3 msec Almost all, “H” is input
“L” is input every 13.3 msec Almost all, “H” is input
63
C-SW
I
Inputs a MD disc loading start or a MD disc eject completion detect switch detection signal
“L”: When loading start or eject completed of a disc loading operation
“L”: When loading start or eject completed of a disc loading operation
64
MD-LAT
O
Serial data latch pulse signal output to the CXD2662R and CXA2523AR
65
MD-ON
O
Power supply on/off control signal output of the MD mechanism deck section main power supply
“H”: power on
“H”: power on
66
DEEMP
O
MD emphasis control signal output to the master controller “H”: emphasis on
67
A-ATT
O
Audio line muting on/off control signal output “H”: muting on
68
NCO
O
Not used
69
TSTCKO
O
Output of clock signal for the test mode display Not used
70
TSTSO
O
Output of data for the test mode display Not used
71
TSTMOD
I
Setting terminal for the test mode “L”: test mode, “H”: normal mode
72
VDD
—
Power supply terminal (+5V)
73
NIL
I
Not used
74 to 77
TOUT0 to TOUT3
O
In test mode, output of the 4x8 matrix test keys Not used
78 to 80
TIN0 to TIN2
I/O
In test mode, input of the 4x8 matrix test key In nomal mode, output “L” Not used
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