JVC XM-PX50WT Service Manual page 19

2.Pin function (4)
Symbol I/O
Pin No.
E-17 VSIO2 -
E-16 F0CN O
E-15 VDIO2 -
D-17 DTRF O
D-16 CKRF O
D-15 XLRF O
A-17 NC -
B-17 NC -
C-17 LDDR O
A-16 NC -
B-16 NC -
C-16 APCR O
A-15 TFDR O
B-15 TRDR O
C-15 NC -
A-14 FRDR O
B-14 FFDR O
C-14 VDC4 -
A-13 VSC4 -
B-13 SRDR O
C-13 FS4 O
A-12 SPFD O
B-12 SPRD O
C-12 SFRD O
A-11 TEST2 I
B-11 TEST1 I
C-11 FGIN I
A-10 TST2 O
B-10 EFMO O
C-10 TEST3 I
A-9 VSIO3 -
B-9 TST3 O
C-9 VDIO3 -
A-8 SPCU I
B-8 SPDW O
C-8 SPDV O
A-7 TST4 O
B-7 SPCW I
C-7 SPCV I
A-6 VSC5 -
B-6 SLDW O
C-6 SLDV O
A-5 SLCV I
B-5 SLCU I
C-5 VDC5 -
A-4 BYPS O
B-4 TST5 O
C-4 SLCW I/O
Function
2.5V I/O Vss
Filter cutoff control output
2.5V I/O VDD
Controller data output
Controller clock output
Controller latch output
Open
Open
Laser digital APC PWM output
Open
Open
Laser APC reference PWM output
Tracking servo drive PWM output (+)
Tracking servo drive PWM output (-)
Open
Focus servo drive PWM output (-)
Focus servo drive PWM output (+)
Internal logic VDD (1.8V)
Internal logic GND
Sled servo drive PWM output (-)
176.4kHz clock output (X'tal system)
Spindle servo drive output
Spindle servo drive output
Sled servo drive PWM output (+)
Test terminal Connect to GND
Test terminal Connect to GND
Spindle CAV servo FG input
Test terminal Open
EFM output at recording
Test terminal Connect to GND
2.5V I/O Vss
Test terminal Open
2.5V I/O VDD
Blush less spindle motor drive comparate input (U)
Blush less spindle motor 3 phase drive truth output (W)
Blush less spindle motor 3 phase drive truth output (V)
Test terminal Open
Blush less spindle motor drive comparete input (W)
Blush less spindle motor drive comparate input (V)
Internal logic GND
Blush less sled motor 3 phase drive truth output (W)
Blush less sled motor 3 phase drive truth output (V)
Blush less sled motor 3 phase drive comparate input (V)
Blush less sled motor 3 phase drive comparate input (U)
Internal logic VDD (1.8V)
Open
Test terminal Open
Blush less sled motor 3 phase drive comparate input
XM-PX50WT
1-19