Sony DPP-MS300E Service Manual page 63

Pin No. Pin Name
62, 63 GND
64 to 71 DT7 to DT0
72 GND
73 VCC
74 RIBBON-LED
75 INP-LED
76 MEM-LED
77 PRN-LED
78 CARD-LED
79
PAPER-LED
80 POWER-LED
81 STPLOW
82 DATE (PWSW)
83 FAN
84 FMTRCW
85 FMTRCCW
86 HMTRCW
87 HMTRCCW
88 VCC
89 RMTRCW
90 RMTRCCW
91 NIBCOM
92 PRESET PRINT
93 NTSC/PAL
94 TMG
95 PSTX
96 RCODE2
97 RCODE1
98 RCODE0
99 FKEY2
100 FKEY1
I/O
—
Ground terminal
Two-way data bus with the A/D, D/A converter (IC407), system controller (IC503), ROM
I/O
(IC506), D-RAM (IC509), PC card controller (IC1501) and PC card slot (lower 8 bit)
Data input from the centronics parallel port
—
Ground terminal
— Power supply terminal (+5V)
O
LED drive signal output of the ribbon error indicator (D1735) "L": LED on
O
LED drive signal output of the INPUT indicator (D1733) "L": LED on
O
LED drive signal output of the MEMORY indicator (D1734) "L": LED on
O LED drive signal output of the printing status indicator (D1737 to D1739) "H": LED on
O
LED drive signal output of the card indicator "L": LED on Not used (open)
O
LED drive signal output of the paper replacement indicator (D1736) "L": LED on
O LED drive signal output of the power indicator "L": LED on Not used (open)
O
Low/high speed control signal output for the platen motor (M904)
I
DATE switch (S1720) input terminal "L": on, "H": off
O
Head fan motor (M901) drive signal output terminal "H": motor on
O Motor drive signal (CW) output for the auto feeder unit "H" active
O
Motor drive signal (CCW) output for the auto feeder unit "H" active
O
Head up/down motor (M902) drive signal (CW) output terminal "H" active
O
Head up/down motor (M902) drive signal (CCW) output terminal "H" active
—
Power supply terminal (+5V)
O
Ribbon motor (M903) drive signal (CW) output terminal "H" active
O
Ribbon motor (M903) drive signal (CCW) output terminal "H" active
O Busy control signal output to the centronics parallel port
I
PRESET SELECT switch (S1702) input terminal "L": on, "H": off
Setting terminal for the video system (NTSC/PAL) "L": PAL mode, "H": NTSC mode
I
Fixed at "L" in this set
Timing pulse output terminal Connected to TMG (pin #£)
O
Print start signal output terminal Connected to PSTX (pin #¢)
O
I Ribbon code (2) detect sensor (PH904) input terminal
I
Ribbon code (1) detect sensor (PH905) input terminal
I
Ribbon code (0) detect sensor (PH906) input terminal
I
Sheets bit (2) input from the auto feeder unit
I Sheets bit (1) input from the auto feeder unit
Description
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