Sony DPP-MS300 Marketing, Руководство по обслуживанию

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DK-40 BOARD IC505 HG51BS263AFB (HEAD CONTROLLER, MECHANISM CONTROLLER)
Pin No. Pin Name I/O Description
1 FKEY0 I
Sheets bit (0) input from the auto feeder unit
2 FEEDER I
Auto feeder unit desorption detect input terminal “L”: attach, “H”: removed
3 FPS I
Auto feeder unit position detect sensor input terminal
4 BUSY I/O
Busy signal in/out terminal Connected to TMGE (pin
@§
)
5 HPS0 I
Head position (0) detect sensor (PH1852) input terminal
6 HPS1 I
Head position (1) detect sensor (PH1851) input terminal
7 IVO2 O
Not used (open)
8 IVO1 O
Not used (open)
9 IVI2 I
Not used (fixed at “L”)
10 IVI1 I
Not used (fixed at “L”)
11 IVEN I
Not used (fixed at “L”)
12 GND —
Ground terminal
13 XIN I
System clock input terminal (20 MHz)
14 XOUT O
System clock output terminal (20 MHz)
15
VCC —
Power supply terminal (+5V)
16
AC T I
Not used (fixed at “H”)
17
AC W I
Not used (fixed at “H”)
18
CALC O
Not used (open)
19
DRVX O
Strobe signal output to the thermal-head (HEAD901) “L”: power on
20
PDT3 O
Printing data (3) output to the thermal-head (HEAD901)
21
PDT2 O
Printing data (2) output to the thermal-head (HEAD901)
22
PDT1 O
Printing data (1) output to the thermal-head (HEAD901)
23
PDT0 O
Printing data (0) output to the thermal-head (HEAD901)
24
LATX O
Serial data latch pulse output to the thermal-head (HEAD901)
25
HDCK O
Serial data transfer clock signal output to the thermal-head (HEAD901)
26 TMGE I/O
Timing pulse in/out terminal Connected to BUSY (pin
4
)
27 DRQX O
Not used (open)
28 CKO O
Clock signal output terminal (20 MHz)
29 VCC —
Power supply terminal (+5V)
30 GND —
Ground terminal
31 CK I
Clock signal input terminal (20 MHz) Connected to CKO (pin
@•
)
32 DTRX I
Not used (fixed at “L”)
33 TMG I
Timing pulse input terminal Connected to TMG (pin
(¢
)
34 PSTX I
Print start signal input terminal Connected to PSTX (pin
(∞
)
35 RESX I
System reset signal input from the reset signal generator (IC501) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
36 RDX I
Data read enable signal input from the system controller (IC503) “L” active
37 WEX I
Data write enable signal input from the system controller (IC503) “L” active
38 VCC —
Power supply terminal (+5V)
39 CS1X I
Chip select signal input from the A/D, D/A converter (IC407) “L” active
40 CUTEX I
Address signal input for the chip select signal generate Connected to address bus (A12)
41 REGX I
Address signal input for the chip select signal generate Connected to address bus (A11)
42 to 51 AD10 to AD1 I
Address signal input from the system controller (IC503)
52 VCC —
Power supply terminal (+5V)
53 GND —
Ground terminal
54 to 61 DT15 to DT8 I/O
Two-way data bus with the A/D, D/A converter (IC407), system controller (IC503) and
D-RAM (IC509) (upper 8 bit)