Diagrams; Ic Pin Descriptions - Sony MDX-C800REC Service Manual

3-1. IC PIN DESCRIPTIONS

• IC560 MB90574FPV-G-297-BND (MD CONTROL)
Pin No. Pin Name
1 SCTX
2 LDON
3 LOAD
4 EJECT
5 MDMON
6 LNKOFF
7 UNIREQ
8 VCC
9, 10 NC
11 FLASH-W
12 RXD/DSPSI
13 TXD/DSPSO
14 LIMIT-IN
15 EE CKO
16 EE SIO
17 SENS IN
18, 19 NC
20 SRDT
21 SWDT
22 SCLK
23, 24 NC
25 UNISI
26 UNISO
27 UNCKI
28 MOD
29, 30 NC
31 FOPEN
32 CLOSE OK
33 VSS
34 C
35 AGCHK
36 AGING
37 TFTON
38 DVCC
39 DVSS
40 ERR-PWM
41 ADER-PWM
42 AVCC
43 AVRH
44 AVRL
45 AVSS
46 NC
47 ACNT
48 DOB-SEL
49 INIT
50, 51 TEST 0, 1
52 REF-SEL
53 NC
54 VCC
55 TSTMOD
24
SECTION 3

DIAGRAMS

I/O
Write data transmission timing output to CXD2652AR, ON/OFF output of magnet
O
head
O Laser ON/OFF control output ("H": Laser ON)
O Loading motor control output (Loading direction)
O Loading motor control output (Eject direction)
O MD mechanism deck power supply control output
O LINK OFF output to SONY BUS ("H": LINK OFF, "L": LINK ON)
O Request output to SONY BUS ("H": Request ON) (Not used in this set.)
— Power supply pin (+5 V)
— Not used (Open)
I Select input for flash write ("L": Flash write mode)
I UART RXD data input
O UART TXD data output
I Sled innermost track detection switch input ("L": Innermost track)
O Serial clock output for EEPROM
I/O EEPROM data input/output
I Disk photo sensor input ("H": With desk)
— Not used (Open)
I Data input from MD servo IC
O Data output to MD servo IC
O Clock output to MD servo IC
— Not used (Open)
I Data input from SONY BUS
O Data output to SONY BUS
I Clock input from SONY BUS
O Laser modulation select signal output
— Not used (Open)
I Front panel open signal input
O Front panel open/close request signal output
— Ground pin
— Power stabilization capacitor pin
O Effect output when aging operation end of test mode
O Output of aging operation condition when test mode (Normally, open)
O Output of drop running condition when test mode (Normally, open)
— Power supply pin for D/A converter (+5 V)
— Ground pin for D/A converter
O PWM output of error rate (Normally, open)
O PWM output of AD error (Normally, open)
— Power supply pin for A/D converter (+5 V)
— External reference power supply for A/D converter (Connect to AVCC in this set.)
— External reference power supply for A/D converter (Connect to AVSS in this set.)
— Ground pin for A/D converter
— Not used (Open)
I A/D input for designation on aging times of LOADING/EJECT
I A/D input for designation on digital out bit number (Fixed at "H" in this set)
I Initial input when reset
I Test pin (Normally, open)
I Reference select input (Fixed at "L" in this set.)
— Not used (Open)
— Power supply pin (+5 V)
I Test mode input ("L": Test mode)
Pin Description