Sony MDX-CA680 Service Manual page 46

MDX-CA680/CA680X
Pin No. Pin Name
46 LINKOFF
47 UNIREQ
48 UNICKIO
49 UNISI
50 UNISO
51 MD-CKO
52 MD-SI
53 —
54 SENS
55 CC-XINT
56 LIMIT-IN
57 EJT-OK
58 ERROR-PWM
59 MD-RST
60 BU-IN
61 BUS-ON
62 SQSY
63 C-SW
64 MD-LAT
65 MD-ON
66 DEEMP
67 A-MUTE
68 —
69 TSTCKO
70 TSTSO
71 TSTMOD
72 VCC
73 NC
74 to 77
TOUT0 to TOUT3
78 to 80 TIN0 to TIN2
46
I/O
O
Unilink on/off control signal output for the SONY bus "L": link on, "H": link off
O
Data request signal output terminal (for SONY bus) "H": request on Not used (open)
Serial clock signal input from the system controller (IC501) or serial clock signal output to the
I/O
SONY bus interface (IC505) and system controller (IC501) (for SONY bus)
I Serial data input from the SONY bus interface (IC505)
O
Serial data output to the SONY bus interface (IC505)
O
Serial data transfer clock signal output to the CXD2662R (IC301) and CXA2523AR (IC302)
I
Reading serial data signal input from the CXD2662R (IC301)
O Not used (open)
I
Internal status (SENSE) input from the CXD2662R (IC301)
I Interrupt status input from the CXD2662R (IC301)
Detection input from the sled limit-in detect switch
I
The optical pick-up is inner position when "L"
I
Front panel open detection signal input terminal "L": eject possible
O PWM error monitor output terminal (C1and ATER is output when test mode) Not used (open)
Reset signal output to the PCM1718E (IC101), CXD2662R (IC301) and BH6518FS (IC303)
O
"L": reset
Battery detect signal input from the SONY bus interface (IC505) and battery check circuit
I
"H": battery on
I
SONY bus on/off control signal input from the system controller (IC501) "L": bus on
Subcode Q sync (SCOR) input from the CXD2662R (IC301)
I
"L" is input every 13.3 msec Almost all, "H" is input
Inputs a disc loading start or a disc eject completion detect switch detection signal
I
"L": When loading start or eject completed of a disc loading operation
O
Serial data latch pulse signal output to the CXD2662R (IC301) and CXA2523AR (IC302)
Power supply on/off control signal output of the MD mechanism deck section main power supply
O
"H": power on
O
De-emphasis on/off control signal output to the PCM1718E (IC101) "H": de-emphasis on
O
Audio muting on/off control signal output
O
Not used (open)
O Output of clock signal for the test mode display Not used (open)
O
Output of data for the test mode display Not used (open)
I
Setting terminal for the test mode "L": test mode, "H": normal mode
—
Power supply terminal (+5V)
I
Not used (fixed at "H")
O
Output of the 4×8 matrix test keys
I/O
Input of the 4×8 matrix test keys ("L" is always output, except in test mode)
Description
Not used (open)
Not used (open)