Sony MDX-F5800 Service Manual page 41

SERVO BOARD IC7 MB90473PFV-G-157-BNDE1 (MD MECHANISM CONTROLLER)
Pin No. Pin Name
1 MDMON
2 LINKOFF
3 ERR-PWM
4 NC
5 3TPWM
6 NC
7 A-ATT
8 NC
9 VSS
10 NC
11 EMPHA_0
12 NC
13 DISC_EXIST
14 EJECT_OK
15 OPEN_REQ
16 SRDT
17 SWDT
18 SCLK
19 MD-LAT
20 NC
21 VCC
22 to 24 NC
25 RXD
26 TXD
27 FLASH_W
28 to 32 NC
33 AVCC
34 AVRH
35 AVSS
36 to 39 NC
40 VSS
41 REF_LEVEL
42 to 45 NC
46 CC-XINT
47 to 49 MD0 to MD2
50 BUS_ON
51 BU_IN
52 SQ_SY
53 DISC-IN
54, 55 NC
56 UNISI
57 UNISO
58 UNICLK
I/O
O Power supply on/off control signal output of the MD mechanism deck section
O Uni-link on/off control signal output for the SONY bus interface "L": link on
O Error rate PWM output terminal Not used
O Not used
O 3T jitter PWM output terminal Not used
O Not used
O Audio muting on/off control signal output terminal "H": muting
O Not used
— Ground terminal
O Not used
O MD emphasis control signal output terminal "H": emphasis on Not used
O Not used
I Disc detection sensor input terminal Not used
I Front panel open/close detection input terminal "L": close
O Eject request signal output terminal "L": close request, "H": open request
I Reading serial data signal input from the MD DSP
O Writing serial data signal output to the MD DSP
O Serial data transfer clock signal output to the MD DSP
O Serial data latch pulse output to the RF amplifier and MD DSP
O Not used
— Power supply terminal (+3.3V)
O Not used
Receive data input terminal for UART communication when data writing to the internal flash
I
memory
Transmit data output terminal for UART communication when data writing to the internal flash
O
memory
I Mode select terminal for data writing to the internal flash memory
O Not used
— Power supply terminal (+3.3V)
I Reference voltage input for the internal A/D converter
— Ground terminal
O Not used
— Ground terminal
I Light amount signal (ABCD) input terminal
O Not used
I Interrupt status input from the MD DSP
— Setting terminal for the CPU operational mode
I SONY bus on/off control signal input terminal "L": bus on
I Back up power supply detection signal input terminal "L" is input at low voltage
Subcode Q sync (SCOR) input from the MD DSP
I
"L" is input every 13.3 msec Almost all, "H" is input
I Disc loading detection switch input terminal "L": loading
O Not used
I Serial data input from the SONY bus interface IC
O Serial data output to the SONY bus interface IC
I Serial data transfer clock signal input from the system controller
Description
MDX-F5800
41