DR-420TER (ZX-512)
INDEX
FEB. 2000
(without price)
DR-420TER
R
CONTENTS
1. SPECIFICATIONS ............................................................................................. 1
2. SCHEMATIC DIAGRAMS
2-1. Main circuit (1) ........................................................................................... 2
2-2. Main circuit (2) ........................................................................................... 3
2-3. Main circuit (3) ........................................................................................... 4
2-4. Key and switch circuit .............................................................................. 5
3. PARTS LIST....................................................................................................... 6
4. EXPLODED VIEW.............................................................................................. 7
1. SPECIFICATIONS
Ambient temperature range:0°C ~ 40°C (32°F ~ 104°F)
Power supply: Rated current and voltage are printed on the calculator.
Dimensions: 85 mm (H) × 217 mm (W) × 329 mm (D)
(33/8" H × 81/2" W × 13" D )
roll holder not extended
Weight: 1.9 kg (4.1 lbs)
Consumable supplies: Printer Ribbon (RB-02 or GB-02)
Consumable supplies: Roll Paper
*The AC outlet must be located near the unit and must be easily accessible.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufactuter.
Dispose of used batteries according to the manufacturer's instructions.
— 1 —
2. SCHEMATIC DIAGRAM
2-1. Main circuit (1)
NOTE:
1. Unless specified. Otherwise all resistors are 1/4W or above.
— 2 —
BY CALCULATION VM O/P VOLTAGE
SHORT POINT OUTPUT VOLTAGE PRINT SPEED
c 11.45 V
b 11.19 V
a c 11.12V
ALL OPEN
a b 10.78 V
a 10.57 V
10.36 V
FAST
SLOW
2-2. Main circuit (2)
NOTE :
1. UNLESS SPECIFIED. ALL RESISTORS ARE 1/4 WATTS [R-25].
2. --- POWER SUPPLY CHECK PADS.
--- SIGNAL INSPECTION PADS.
3. TWO PCBs ARE USED IN THIS MODEL.
OPEN SHORT
SP4 12 DIGIT 10 DIGIT
SP5 USA-$ EURO
— 3 —
2-3. Main circuit (3)
NOTE :
1. UNLESS SPECIFIED. ALL RESISTORS ARE 1/4 WATTS [R-25].
2. --- POWER SUPPLY CHECK PADS.
--- SIGNAL INSPECTION PADS.
3. TWO PCBs ARE USED IN THIS MODEL.
✽ NP: --- No Pin
NC: --- No Connection
— 4 —
2-4. Key and switch circuit
— 5 —
3.PARTS PRICE LIST
DR-420TER
N Item Code No. Parts Name Specification Applicable Q Price Code R
PCB UNIT (HA110269)
N IC1 1000 1931 LSI TC83220-0801 Common 1 AV C
IC2,IC3 2120 6687 TRANSISTOR/ARRAY TD62008AP Common 2 AK C
N VFD1 1001 7205 DISPLAY TUBE 13-MT-31GC Common 1 BJ B
Q1 2251 0574 TRANSISTOR 2SB1329-Q,R-T105-T Common 1 AC C
Q2 2253 0469 TRANSISTOR 2SD1380-Q,R Common 1 AD C
Q3,Q4 2252 0896 TRANSISTOR 2SC1740S-R,S-TP-T Common 2 AA C
Q5,Q10,
Q20~Q28
2250 0588
Q6 2251 0595 TRANSISTOR 2SB1374-Q,R-T103-T Common 1 AC C
Q7,Q8 2259 1400 TRANSISTOR/DIGITAL DTD114ES-TP Common 2 AB C
D1~D5 2390 0378 DIODE 1SR139-100T-32-T Common 5 AA X
D6,D8 2360 1946 DIODE/ZENER MTZJ5.6CT-77-T Common 2 AA C
D7 2360 2044 DIODE/ZENER MTZJ6.2AT-77-T Common 1 AA C
D34,D35
D32,D33 2390 3021 DIODE SRT14 Common 2 AF X
N R22 1001 8364 RESISTOR/NETWORK HRAA10-104J Common 1 AA C
N X1 2590 2782 OSCILLATOR CSA4.00MG100-TF01 Common 1 AB C
N 1 1001 8363 CABLE/JOINT HA310937-2 Common 1 AA C
2 6419 4320 CABLE/JOINT HA310361-2 Common 1 AD C
N 3 1001 8362 PRINTER UNIT/DIGITAL M-80-061 Common 1 AY B
COMPONENTS
N 4 1001 8386 PCB ASSY HA110292*1 Common 1 DD B
N 5
1001 8347
CASE/UPPER
HA110285-4
Common 1 AZ X
N 6
1001 8348
CASE/LOWER
HA110286-4
Common 1 AZ X
N 7
1001 8350
PRINTER COVER
HA110287-4
Common 1 AH C
N 8
1001 8352
PLATE/DISPLAY
HA110290-4
Common 1 AE C
N 9
1001 8353
PAPER CUTTER
HA210238-1
Common 1 AB C
N 10
1001 8354
SWITCH/SLIDE
HA210239-1
Common 1 AA C
N 11
1001 8355
SWITCH/SLIDE
HA210240-1
Common 2 AA C
N 12
1001 8356
RUBBER/KEY
HA110291-1
Common 1 AF C
N 13
1001 8357
BATTERY COVER
HA310947-3
Common 1 AA C
N 14
1001 7195
BATTERY PLATE (-)
HA310949-1
Common 1 AA X
N 15
1001 7196
BATTERY PLATE (+)
HA310950-1
Common 1 AA X
N 16
1001 8358
ROLL ARM
HA310901-1
Common 1 AI C
N 17
1001 8359
PLATE/ROLL ARM
HA311007-1
Common 1 AA X
N 18
1001 7201
PLATE/ROLL ARM
HA310953-1
Common 1 AA X
19
6054 0960
RUBBER/FOOT
P410035-4
Common 2 AA X
20
6424 5281
PLATE/SWITCH
HA310595-1
Common 2 AA X
N 21
1001 7202
PLATE/SWITCH
HA411226-1
Common 2 AA X
22
6052 6620
HANGER
P410126-2
Common 1 AA X
23
6052 6630
HANGER
P410117-2
Common 1 AA X
24
6052 6640
HANGER
P410127-2
Common 1 AA X
N 25
1001 8388
KEY ASSY/FUNCTION
HA310978*2
Common 1 AU C
N 26
1001 7215
KEY ASSY/NUMBER
HA310979*1
Common 1 AM C
N 27
1001 7203
TRANSFORMER/POWER
SE-512-1D2
Common 1 AU C
28 3701 1144 CORD/POWER BS1363H03VVH2 UK only 1 BJ C
28 3701 1106 CORD/POWER EP-483-E04 Europe 1 AP C
29 6420 2600 SPACER A442667-1 Common 1 AT X
30 6419 9840 RUBBER/RESET A341594-1 Common 1 AA X
N 31 1001 8360 SWITCH COVER HA411246-1 Common 1 AA C
32 6389 3307 CUSHON/PRINTER M4K3791 Common 4 AA X
33 6419 4680 STOPPER/PRINTER HA410531-1 Common 1 AA X
N 34 1001 8361 LABEL HA411247-4 Common 1 AA X
Notes: N-New parts R- A: Essential
Q-Quantity used per unit B: Stock recommended
R-Rank C: Others
X: No stock recommended
- 6 -
TRANSISTOR 2SA933STPR Common 11 AA C
D9~D31,
2301 0101 DIODE 1S2473-T-77-T Common 25 AA X
4. EXPLODED VIEW
6
5
9
7
8
34
16 17 32 18
3
33
2
14
28
27
15
26 25
13
19
DETAIL A
DETAIL A
1
24
12
10
4
22
23
31
30 29
LOWER CASE
21 11 20
— 7 —
CASIO TECHNO CO.,LTD.
Overseas Service Division
Nishi-Shinjuku Kimuraya Bldg. 1F
5-25, Nishi-Shinjuku 7-Chome
Shinjuku-ku, Tokyo 160-0023, Japan
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