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5-4.
BLOCK DIAGRAM
– HEAD/SENSOR/MOTOR/POWER SUPPLY Section –
D0 – D15
F
(Page 5-4)
A1 – A12
G
(Page 5-4)
RESET
B
35
(Page 5-3)
WR
37 WEX
WR, RD
RD
E
36 RDX
(Page 5-3)
PCS
C
39 CS1X
(Page 5-3)
S1702
MIRROR IMAGE
H
SELECT
92 MAVICA PRINT
V
91 PC
OFF
S1720
OFF
82 DATE (PWSW)
DATE
ON
D1731
80 POWER-LED
POWER
D1736
79 PAPER-LED
PAPER REPLACEMENT
INDICATOR
LED DRIVE
77 PRN-LED
Q1731
D1737 – 1739
PRINTING STATUS
INDICATOR
D1734
76 MEM-LED
MEMORY
D1733
75 INP-LED
INPUT
D1735
74 RIBBON-LED
RIBBON ERROR
INDICATOR
05
Confidential
DMP-1000P (AEP)
121
HEAD CONTROLLER,
HEAD901
MECHANISM CONTROLLER
THERMAL HEAD
IC505
TH
PDT0
23
DATA1
PDT1
22
DATA2
PDT2
21
DATA3
PDT3
20
DATA4
HDCK
25
CLOCK
LATX
24
LATCH
DRVX
19
STROBE
RESX
HEAD POSITION 0
1
3
HPS0
5
SENSOR
HEAD
PH1852
POSITION
SENSOR AMP
IC508
HEAD POSITION 1
5
7
HPS1
6
SENSOR
PH1851
RIBBON CODE 0
RCODE0
98
SENSOR
PH906
RIBBON CODE 1
RCODE1
97
SENSOR
PH905
RIBBON CODE 2
RCODE2
96
SENSOR
PH904
STPLOW
81
HEAD FAN
M
FAN
83
MOTOR DRIVE
Q1900
HEAD UP/DOWN MOTOR DRIVE,
RIBBON MOTOR DRIVE
IC1900
IN4
OUT4
RMTRCCW
90
10
11
MOTOR
M
OUT3
IN3
DRIVE
RMTRCW
89
7
6
IN2
OUT2
HMTRCCW
87
2
3
MOTOR
M
IN1
OUT1
DRIVE
HMTRCW
86
15
14
CN1882
5
SHEET BIT0
FKEY0
1
6
SHEET BIT1
FKEY1
100
SHEET BIT2
7
FKEY2
99
4
FE MOTOR 0
FMTRCW
84
3
FE MOTOR 1
FMTRCCW
85
FE POSITION
2
SENSE
FPS
3
FE DESORPTION
1
SENSE
FEEDER
2
13
14
X502
20MHz
5-7
SYSTEM CONTROLLER
IC503 (3/3)
122
123
125
126
142 140 139 138
SELECTOR
PAPER EDGE
IC1903
SENSOR
PH901
1
2
JAMMING
DETECT SENSOR
PH1861
4
5
RIBBON MARK 0
SENSOR
PH902
12
13
RIBBON MARK 1
SENSOR
9
PH903
10
1
COMPARATOR
IC1902 (1/2)
14
COMPARATOR
IC1902 (2/2)
M901
(HEAD FAN)
M903
AUTOMATIC FEEDER UNIT
(RIBBON)
ENCODER
+5V
IC101
M902
IN0
10
(HEAD UP/DOWN)
11
9
A0
ROTARY
7
A1
IN1
13
SWITCH
6
A2
1
IN7
S100
4
SHEETS SET
FEEDER MOTOR DRIVE
IC102
CN201
3
IN1
OUT1
9
M101
M
5
A0
(FEEDER)
OUT2
6
4
IN2
7
A1
7
A2
4
+5V
3
2
COMPARATOR
IC100
1
FEEDER POSITION SENSOR
MOTOR +22V
PLATEN MOTOR DRIVE
IC1901
3
3
2
SWITCH
7
6
6
SWITCH
M
M904
(PLATEN)
5
11
4
SWITCH
9
8
8
SWITCH
10 1
+5V
4
5
10
11
HIGH/LOW
SPEED SWITCH
Q1902
+22V MOTOR B+
+7V MOTOR B+
+6.25V SIGNAL B+
M905
M
(POWER FAN)
+5V
+5V
REGULATOR
FLOPPY DISK DRIVE
UNIT B+
IC2100
+5V
+5V
REGULATOR
VIDEO CIRCUIT B+
IC110
+5V
+5V
A/D, D/A CONVERTER (IC407),
REGULATOR
VIDEO CIRCUIT B+
IC404
+5V (DIGITAL SYSTEM)
+5V
SYSTEM CONTROLLER (IC503),
REGULATOR
HEAD/MECHANISM
IC504
CONTROLLER (IC505) B+
RIBBON CODE SENSOR LED
LED DRIVE
(PH904 – 906) B+
Q1903
S1871
(RIBBON DOOR DETECT)
+5V
5-8
POWER
POWER
BLOCK
(AC IN)
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