Sony CDX-424RF Service Manual page 28

Pin No. Pin Name
56 SCOR
57 SENS2
58 PWM
59 —
60 MAG.SW
61 BUCHECK
62 W.UP
63 C.OUT
64 EEDATA
65 EECLK
66 EEINIT
67 —
68 SINGLE
69 FOK
70 GFS
71 SENS1
72 VDD
73 NC (VDD)
74 CDCLK
75 CDXLT
76 CDDATA
77 to 80 —
*1 chucking motor (M103) control
Mode
Terminal
CH.F (pin 9)
CH.R (pin 8)
*2 elevator motor (M104) control
Mode
Terminal
PWM (pin %•)
ELV.R (pin !¡)
I/O
I Subcode sync (S0+S1) detection signal input from the CXD2530Q (IC101)
I Internal status signal (sense signal) input from the CXA1992BR (IC11)
Motor drive signal (elevator up direction) output to the elevator motor drive (IC301)
O
"L" active *2
O Not used (open)
I Magazine in/out detect switch (SW302) input terminal "L": magazine detected
I Battery detection signal input terminal "H": battery on
I Bus on or eject switch (SW303) input terminal "H": bus on or eject switch pushing
I Track number count signal input from the CXA1992BR (IC11)
I/O Two-way data bus with the EEPROM Not used (open)
O Serial clock signal output to the EEPROM Not used (open)
I Initialize signal input for the EEPROM "H": format Fixed at "L" in this set
O Not used (open)
Setting terminal for the single disc/multiple discs mode
I
"L": single mode, "H": multiple discs mode (fixed at "H")
I Focus OK signal input from the CXA1992BR (IC11) "L": NG, "H": OK
I Guard frame sync signal input from the CXD2530Q (IC101) "L": NG, "H": OK
I Internal status signal (sense signal) input from the CXD2530Q (IC101)
— Power supply terminal (+5V)
— Connected to the power supply (+5V)
O Serial data transfer clock signal output to the CXD2530Q (IC101)
O Serial data latch pulse signal output to the CXD2530Q (IC101)
O Serial data output to the CXD2530Q (IC101)
O Not used (open)
LOAD
STOP
CHUCKING
"L" "H"
"L" "L"
ELEVATOR ELEVATOR
STOP
UP
"H" "L"
"H" "H"
Function
SAVE BRAKE
"L" "H"
"H" "H"
BRAKE
DOWN
"H" "L"
"L" "L"
– 36 –