Sony MDS-JB920 Service Manual page 38

• MAIN BOARD IC800 M30610MCA-264FP (SYSTEM CONTROLLER)
Pin No. Pin Name
1 JOG1
2 JOG0
3 C1
4
ADER
5 SQSY
6 RMC
7 AIN1
8 BYTE
9 CNVSS
10 XT-IN
11 XT-OUT
12 S.RST
13 XOUT
14 GND
15 XIN
16 +3.3V
17
NMI
18 DQSY
19 P.DOWN
20 XINT
21 DVOL1
22 DVOL0
23 to 30 NC
31 SWDT
32 SRDT
33 SCLK
34 FLCS
35 FLDATA
36 NC
37 FLCLK
38 to 47 NC
48 CSET0
49 CSET1
50 XINSW
51 NC
52 MNT2 (XBUSY)
53 DIG-RST
54 MNT1 (SHOCK)
55 SENS
56 LDON
57 REFLECT
58 PROTECT
I/O
I JOG dial pulse input from the rotary encoder (S713 ≠ AMS ±)
I JOG dial pulse input from the rotary encoder (S713 ≠ AMS ±)
O
Monitor output terminal for the test C1 error rate is output when test mode
O
Monitor output terminal for the test ADER is output when test mode
Subcode Q sync (SCOR) input from the CXD2654R (IC121)
I
"L" is input every 13.3 msec Almost all, "H" is input
I Remote control signal input from the remote control receiver (IC761)
I Sircs remote control signal input of the S-LINK CONTROL A1
I External data bus line byte selection signal input "L": 16 bit, "H": 8 bit (fixed at "L")
— Ground terminal
I Sub system clock input terminal (32.768 kHz)
O Sub system clock output terminal (32.768 kHz)
System reset signal input from the LA5632 (IC700) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O Main system clock output terminal (7 MHz)
— Ground terminal
I Main system clock input terminal (7 MHz)
— Power supply terminal (+3.3V)
I Non-maskable interrupt input terminal (fixed at "H" in this set)
Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2654R (IC121)
I
"L" is input every 13.3 msec Almost all, "H" is input
I Power down detection signal input terminal "L": power down, normally: "H"
I Interrupt status input from the CXD2654R (IC121)
I Digital rec level volume input terminal
I Digital rec level volume input terminal
I Not used (fixed at "L")
O
Writing data output to the CXD2654R (IC121) and D/A converter (IC200)
I
Reading data input from the CXD2654R (IC121)
O
Serial clock signal output to the CXD2654R (IC121) and D/A converter (IC200)
O Chip select signal output to the FL/LED driver (IC771)
O Serial data output to the FL/LED driver (IC771)
I Not used (fixed at "L")
O Serial data transfer clock signal output to the FL/LED driver (IC771)
I Not used (fixed at "L")
I Destination setting terminal (US, Canadian models: fixed at "L", AEP, UK models: fixed at "H")
I Destination setting terminal (US, Canadian models: fixed at "H", AEP, UK models: fixed at "L")
I Setting terminal of the loading control system select (fixed at "H" in this set)
I Not used (fixed at "L")
I
Busy signal input from the CXD2654R (IC121)
O
Reset signal output to the CXD2654R (IC121) and BH6511FS (IC152) "L": reset
I
Track jump detection signal input from the CXD2654R (IC121)
I Internal status (SENSE) input from the CXD2654R (IC121)
O
Laser diode on/off control signal output to the automatic power control circuit "H": laser on
Detection input from the disc reflection rate detect switch (S102)
I
"L": high reflection rate disc, "H": low reflection rate disc
I
Rec-proof claw detect input from the protect detect switch (S102) "H": write protect
Function
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