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Model
MDS-JB930
Pages
74
Size
5.28 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / S/M MDS-JB930 US CAN AEP UK 99
File
mds-jb930.pdf
Date

Sony MDS-JB930 Service Manual ▷ View online

57
Pin No.
Pin Name
I/O
Description
89
FRDR
O
Focus servo drive PWM signal (–) output to the BH6511FS (IC152)
90
FS4
O
Clock signal (176.4 kHz) output terminal (X’tal system)    Not used (open)
91
SRDR
O
Sled servo drive PWM signal (–) output to the BH6511FS (IC152)
92
SFDR
O
Sled servo drive PWM signal (+) output to the BH6511FS (IC152)
93
SPRD
O
Spindle servo drive PWM signal (–) output to the BH6511FS (IC152)
94
SPFD
O
Spindle servo drive PWM signal (+) output to the BH6511FS (IC152)
95
FGIN
I (S)
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
* 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”)
58
 MAIN BOARD   IC800   M30624MG-208FP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
JOG1
I
Jog dial pulse input from the rotary encoder (S713  
≠ AMS ±)    B phase input
2
JOG0
I
Jog dial pulse input from the rotary encoder (S713  
≠ AMS ±)    A phase input
3
C1
O
Monitor output terminal for the test    C1 error rate is output when test mode
4
ADER
O
Monitor output terminal for the test    ADER is output when test mode
5
SQSY
I
Subcode Q sync (SCOR) input from the CXD2656R (IC121)
“L” is input every 13.3 msec    Almost all, “H” is input
6
RMC
I
Remote control signal input from the remote control receiver (IC761)
7
AIN1
I
Sircs remote control signal input of the CONTROL A1 II
8
BYTE
I
External data bus line byte selection signal input    “L”: 16 bit, “H”: 8 bit (fixed at “L”)
9
CNVSS
Ground terminal
10
XT-IN
I
Sub system clock input terminal (32.768 kHz)
11
XT-OUT
O
Sub system clock output terminal (32.768 kHz)
12
S.RST
I
System reset signal input from the LA5632 (IC700)    “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 (10 MHz)
14
GND
Ground terminal
15
XIN
I
Main system clock input terminal (10 MHz)
16
+3.3V
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt input terminal (fixed at “H” in this set)
18
DQSY
I
Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2656R (IC121)
“L” is input every 13.3 msec    Almost all, “H” is input
19
P.DOWN
I
Power down detection signal input terminal    “L”: power down, normally: “H”
20
KBCLKIN
I
Serial data transfer clock signal input from the key board
21
KBDTIN
I
Serial data input from the key board
22
NC
O
Not used (open)
23
XINT
I
Interrupt status input from the CXD2656R (IC121)
24 to 26
NC
O
Not used (open)
27
KBCLKOUT
O
Serial data transfer clock signal output to the key board
28 to 30
NC
O
Not used (open)
31
SWDT
O
Writing data output to the CXD2656R (IC121), A/D converter (IC100) and D/A converter 
(IC200)
32
SRDT
I
Reading data input from the CXD2656R (IC121)
33
SCLK
O
Serial clock signal output to the CXD2656R (IC121), A/D converter (IC100) and D/A converter 
(IC200)
34
FLCS
O
Chip select signal output to the FL/LED driver (IC771)
35
FLDATA
O
Serial data output to the FL/LED driver (IC771)
36
NC
I
Not used (fixed at “L”)
37
FLCLK
O
Serial data transfer clock signal output to the FL/LED driver (IC771)
38
NC
O
Not used (open)
39
CLKO
O
Not used (open)
40
ADLATCH
O
Serial data latch pulse signal output to the A/D converter (IC100)
41
NC
I
Not used (fixed at “L”)
42
DVOL0
I
Jog dial pulse input from the rotary encoder (RV760 REC LEVEL)    A phase input
43
DVOL1
I
Jog dial pulse input from the rotary encoder (RV760 REC LEVEL)    B phase input
44, 45
NC
O
Not used (open)
46
NC
I
Not used (fixed at “H”)
59
Pin No.
Pin Name
I/O
Description
47
NC
O
Not used (open)
48
CSET0
I
Destination setting terminal (US, Canadian models: fixed at “L”, AEP, UK models: fixed at “H”)
49
CSET1
I
Destination setting terminal (US, Canadian models: fixed at “H”, AEP, UK models: fixed at “L”)
50
730/930
I
Setting terminal for the model (fixed at “H” in this set)
51
NC
I
Not used (fixed at “H”)
52
MNT2 (XBUSY)
I
Busy signal input from the CXD2656R (IC121)
53
DIG-RST
O
Reset signal output to the CXD2656R (IC121) and BH6511FS (IC152)    “L”: reset
54
MNT1 (SHOCK)
I
Track jump detection signal input from the CXD2656R (IC121)
55
SENS
I
Internal status (SENSE) input from the CXD2656R (IC121)
56
LDON
O
Laser diode on/off control signal output to the automatic power control circuit    “H”: laser on
57
REFLECT
I
Detection input from the disc reflection rate detect switch (S102)
“L”: high reflection rate disc, “H”: low reflection rate disc
58
PROTECT
I
Rec-proof claw detect input from the protect detect switch (S102)    “H”: write protect
59
WR-PWR
O
Laser power select signal output to the CXD2656R (IC121) and HF module switch circuit
“L”: playback mode, “H”: recording mode
60
MNT3 (SLOCK)
I
Spindle servo lock status monitor signal input from the CXD2656R (IC121)
61
SDA
I/O
Two-way data bus with the EEPROM (IC171)
62
+3.3V
Power supply terminal (+3.3V)
63
NC
I
Not used (fixed at “L”)
64
GND
Ground terminal
65
SCTX
O
Recording data output enable signal output to the CXD2656R (IC121) and overwrite head
driver (IC181)    Writing data transmission timing output (Also serves as the magnetic head on/off 
output)
66
SCL
O
Clock signal output to the EEPROM (IC171)
67
MNT0 (FOK)
I
Focus OK signal input from the CXD2656R (IC121)
“H” is input when focus is on (“L”: NG)
68
LIMIT-IN
I
Detection input from the sled limit-in detect switch (S101)
The optical pick-up is inner position when “L”
Laser modulation select signal output to the HF module switch circuit
Stop: “L”, Playback power: “H”,
Recording power:
69
MOD
O
70
XLATCH
O
Serial data latch pulse signal output to the CXD2656R (IC121)
71
NC
I
Not used (fixed at “L”)
72
REC/PB
I
Not used (fixed at “L”)
73
PACK-IN
I
Detection input from the disc detect switch    Not used (fixed at “L”)
74
PB-P
I
Detection input from the playback position detect switch (S604)    “L” active
75
CHACK IN
I
Detection input from the disc chucking-in detect switch    “L”: chucking
Not used (fixed at “H”)
76
PACK-OUT
I
Detection input from the loading-out detect switch (S602)
“L” at a load-out position, others: “H”
77
REC-P
I
Detection input from the recording position detect switch (S601)    “L” active
2 sec
0.5 sec
60
Pin No.
Pin Name
I/O
Description
78
LDIN
O
Motor control signal output to the loading motor driver (IC400)    “L” active    *1
79
LDOUT
O
Motor control signal output to the loading motor driver (IC400)    “L” active    *1
80
LD-LOW
O
Loading motor drive voltage control signal output for the loading motor driver (IC400)
“H” active
81
NC
I
Not used (fixed at “L”)
82
A1OUT
O
Sircs remote control signal output of the CONTROL A1 II
83
MUTE
O
Audio line muting on/off control signal output terminal    “L”: line muting on
84
STB
O
Strobe signal output to the power supply circuit    “L”: standby mode, “H”: power on
85
COAX/XOPT
O
Optical in 1/2 or coaxial in selection signal output to the digital input selector (IC300)
“L”: OPT 1/2, “H”: COAXIAL
86
OPT2/XOPT1
O
Optical in 1 or optical in 2 selection signal output to the digital input selector (IC300)
“L”: OPT 1, “H”: OPT 2
87
DALATCH
O
Serial data latch pulse signal output to the D/A converter (IC200)
88
DARST
O
Reset signal output to the A/D converter (IC100) and D/A converter (IC200)    “L”: reset
89
LED0
O
LED drive signal output terminal    Not used (pull down)
90
LED1
O
LED drive signal output terminal    Not used (pull down)
91
TIMER
I
TIMER switch (S751) input terminal (A/D input)
“L”: PLAY, “H”: REC (OFF: center voltage)
92
SOURCE
I
INPUT switch (S741) input terminal (A/D input)
93
KEY3
I
Key input terminal (A/D input)    S731 (PITCH CONTROL key input)
94
KEY2
I
Key input terminal (A/D input)    S721 to S724, S732 and S733 (DISPLAY/CHAR, SCROLL, 
PLAY MODE, I/
u, FILTER, TIME keys input)
95
KEY1
I
Key input terminal (A/D input)    S711 to S714 and S716 (MENU/NO, YES, PUSH ENTER,  
EJECT 
§ keys input)
96
AVSS
Ground terminal
97
KEY0
I
Key input terminal (A/D input)    S701 to S706 (REC 
r, p, ), 0, P, · keys input)
98
VREF
I
Reference voltage (+3.3V) input terminal (for A/D converter)
99
+3.3V
Power supply terminal (+3.3V) (for analog system )
100
MONO/ST
I
REC MODE switch (S746) input terminal    “L”: MONO, “H”: STEREO
*1  Loading motor (M103) control
Mode  
  Terminal
LDIN (pin &•)
“L”
“H”
“L”
“H”
LDOUT (pin &ª)
“H”
“L”
“L”
“H”
LOADING
EJECT
BRAKE
RUN IDLE
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