Panasonic KX-W50TH User manual

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ELECTRONIC
THERMAL TRANSFER TYPEWRITER
KX-WSOTH
KX-W60TH
Please use this manual for model No. KX-WSOTH/W60THwith the serial number prefix "MA".
Panasonic
ELECTRONIC THERMAL TRANSFER
TYPEWRITER
MODEL NO. KX-WS0TH
SERIAL NO. MA008000
KX-WSOTH
Name Plate
Panasonic
ELECTRONIC THERMAL TRANSFER
TYPEWRITER
MODEL NO. KX-W60TH
SERIAL NO. MA004190
KX-W60TH
1Panasonic Matsushita Services Panasonic Hawaii Inc.
Company 91·238 Kauhi St. Ewa Beach
50 MeadowlandParkway, P.O. Box774
Secaucus. NewJersey07094 Honolulu, Hawaii 96808-0774
Matsushita Electric
Panasonic Sales Company,
Division of Matsushita Elec1ric
of Puerto Rico, inc.
Ave. 65 De lnfanleria, KM 9.7
Victoria lnduslrial Park
Carolina. Puerto Rico00630of Canada Limited
5770 AmblerDrive, Mississauga.
Onlario,l 4W2T3

TABLE OF CONTENTS
1. Specifications ...... . ................... . ...... . ....... . . Page No.
1
2 . Location of Controls ................. .. ... .... .. ... . . ... .
3. Disassembly Instruction ........... .. . . ....... . ....... .. .. .
4. Adjustment of Thermal Head Voltage ............ .. . . ... .. .. .
5. Test Print . .. ... .... . ............................ . .... . .
6. Schematic Diagram .. . ........ . ....... . ............ .. ... .
7. Print Circuit Boards .. . ... ............................ .. . .
8. Block Diagram ......... . .... . .......................... .
9. Explanation of Mechanism . ..... ... .......... ... . ..... . .. .
9.1 Printing Section ............................ . . .... . .
9.2 Ribbon Feed Section ... .. .. . .... ...... ..... ... . .... .
9.3 Carriage Spacing Section ... ..................... .
9.4 Paper Feed Section .. .... . . ... . . .. . .... .. .. ... . .... .
10. Explanation of Electronic Operation .. .. ....... ........ ..... .
10.1 Principle of Operation ..... . .. . . .. ... .. . .. . ... . . .. .
10.2 Circuitry . ......... . .. ......... . ... ........ . ... .. .
10.3 Explanation of Connectors . . . . . . . . . . . . . . . . . . . . . . . . . · ·
11. Troubleshooting .. . ..... ... . .......... ... ..... . .. ·. . . · · ·
11.1 Symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . · · · · ·
11.2 Troubleshooting Flow Chart .. ... . . .... .. .... .... : : : :
12. IC Pin Configuration .. . ... . ... ....... ... . .. .. .... .
12.1 Logic Symbol Chart . . . . . . . . . . . . . . . . . ....
.. ..... .. .. . .. .
12.2 Pin Configuration . . . .. .. . ... . .. .. .. .... .. . . .. .... .
13. Parts Location and Parts List ................. ... . .. . . .. .. .
13.1 Covers .... . . .................. ... . ..... . . ..... ....
13.2 Chassis ... . ........ . .. .. . .. .. .. . . .. ..... ..... ...
13.3 Carrier .. . . . ........ .. . . ... . ... ... .... . . . . ... ... .
13.4 Keyboard ... . . . ............... .. . .. .... . .. ... ... .
13.5 Circuit Boards ................... . .. .. .... .
(Main-1/F·DensityControl-RAM Board) .. .. .. ...
13.6 Packing Materials ...... . .................. . .... . . .
2
4
11
12
13
15
17
18
18
19
20
21
22
22
22
41
46
46
49
58
58
58
61
61
64
66
67
70
73
•
•
•
1. Specifications
KX-W50TH KX-W60TH
Printing method Thermal transfer (24 x 30 dot)
15 CPS for 10 pitch
Printing speed 18 CPS for 12 pitch
22.5 CPS for 15 pitch
Print ribbon Carbon film ribbon
Correction tape Lift-off tape/Cover-up tape
Paper capacity 10.0"
Printing range 8.0"
Display LCD 15 characters LCD 20 characters
+3 digit counter
Printing characters 149
and symbols
Character pitch 10, 12, 15, PS
Keyboard KB I, II, Ill
Line space 1, 1.5, 2
Text memory 6K Byte
(Expandable to 14K Byte)
4 functions (Addition,
Calculation function Subtraction , Multiplication,
Division)
Correction memory 2 lines
Computer interface Option (RP-K100 1/F Adaptor )
AC 120V 60Hz
Power supply or Four D cell batteries
Operating temperature 41°F-95°F (5°C-35 °C)
Dimensions 14 3/a"(W)x 11 7/ 16" (D) x 3 1/a" (H) (365 x 290 x 79 mm)
Weight Approx. 7.3 lbs (2.7 kg)
Weights and dimensions shown are approximate. (Les poids et dimensions mentionnes sont approximatits)
Specifications are subject to change without notice.
-1-

2. LOCATION OF CONTROLS
(Di- --~
(KX-WSOTH shown)
® ..•Paper Release Lever
@ ··· Platen Knob
© ···Display Control
• Rotate to the right •·· The displayed characters will be darker.
• Rotate to the left •·· The displayed characters will be lighter.
@ ··· Print Density Control . .
• Turn the control to the front of the unit ··· The characters printed will be darker.
• Turn the control to the rear of the unit ··· The characters printed will be lighter.
® •••Power Switch
® ··· Ribbon Select Switch
@ ··· AC Adaptor Connector
®···Carriage
CD...Interface Connector (Left side)
- 2-
® l
® •
©
@
®
®
KX-W50TH '2)1- ------- - --
: ~ I @,_:i·!-~'.:~~.1
© ~
@, -= ==t ~~ ~~~~~~~~~~~~~~~~~~~~~~~ ::::;: L - @
(6) -
(i)
(a)
(9)
tOJ
@
@)1-- - - ~
()J),- __ _ ___ _j
CD••·Calculation Key
@ ···LCD display
@ •·•Margin Release Key
© •·•Left Margin Set Key
@ ··· Tab Key
® •··Righi Margin Set Key
(j) ··· Shilt Lock Key
@ ···Tab Set Key
® •··Tab Clear Key
@ ··· Shill Key
KX-W60TH
CD•··Print Key
@ ··· TEXT Key
@ •·· Margin Release Key
© ···Left Margin Set Key
@ ··· Tab Key
® ···Right Margin Set Key
(J) ··· Shift Lock Key
@ ···Tab Set Key
(j) •·· Tab Clear Key
@ ··· Shift Key
@ ··· LCD display
@ ··· Code Key
@ •··Reverse Index Key
@ ··· Repeat Key
@ ··· Space Bar
® ···Relocate Key
@ ··· Index Key
@ ··· Return Key
@ •··Cancel Key
@ ···Forward -Key
@ •··Back Space Key
@ ··· Code Key
@ ••·Reverse Index Key
@ •·•Repeat Key
@ ··· Space Bar
@ •••Relocate Key
@ ··· Index Key
@ •··Return Key
@ •··Cancel Key
@ ··· Forward Key
@ •·· Back Space Key
'--- - ---- -1 14
@ •··Line Spacing Select Key
@ ··· Pitch Select Key
@ ··· Keyboard Select Key
@ ··· Mode Select Key
@ ··· Line Spacing Select Key
@ ··· Pitch Select Key
@ ···Keyboard Select Key
@ ··· Mode Select Key
@ ···T ext Indicator
• 20 characters and three digits for the counter which show how many characters can be printed on the
current line. - 3 -

3. DISASSEMBLY INSTRUCTION
Procedure To remove Remove
1 Cover Platen Knob ...................
2 Screws
3 .......................
Function Cable .. .... . ... .... .. .
LCD Cable .. .. .... .... ..... .. .
4 Mechanism Screws . . .. ... .. . ...... . ......
5 Keyboard Unit ................. .
6 Keyboard Flat Cable ...... ... ... ..
7 Head Flat Cable ... . .. ..........
8 Correction Motor Cable ... .......
Carriage Motor" Cable .. .... ..... .
Paper Feed Motor Cable ...... ...
Paper Out Sensor Cable ..... .. ..
Solenoid Cable ... . . ... .........
Home Sensor Cable .. . ... . . .... .
9 Screws .. .. .. . .. ... .. ... ......
10 P.C.B. Screw .. . . .. . ...... ... ..... .. .
11 Print Density Control Cable .......
12 Power Supply Cable .... . .... . .. .
Power Switch Cable ... .. ........
Ribbon Select SW Cable . ... .. . ..
13 Screws ...... ...... ..... ..... .
Screws .. ... .... .. . ......... . .
Screws (KX-W60TH only) ........
- 4-
® X
® X
© X
@ X
® X
® X
@ X
® X
CD
X
Q) X
® X
© X
@. X
® X
@ X
® X
@ X
® X
® X
(I) X
(Q) X
® X
@ X
® X
1
7
1
1
1
4
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
6
2
4
,
Shown in Fig.
Fig 3-1
Fig 3-2
Fig 3-3
Fig 3-3
Fig 3-4
Fig 3-4
•
Fig 3-3
(KX-W50TH)
(KX-W60TH)
Fig 3-1
@
-5-
®
Fig 3-2 BATTERY COVER

Fig 3-4
(KX-WSOTH)
©----=--"'
@~=----
@
(Q
@
®
®
®
J
\2)
®
@
@
([)
®
- 6 -
Carriage Removal
(1) Remove the printing mechanism from the machine. (Refer to the disassembly instruction page 4).
(2) Remove the screw, belt tension spring and tension frame ® attached to the left side of the frame assembly .
(3) Remove the timing pulley shaft(L ,) and timing pulley(G).
(4) Remove the E-rings @ and © from carriage shaft, and then remove the two screws from the solenoid block.
(5) Slide the carriage shaft out to the left side. (Do not scratch the shaft).
(6) Remove the E-ring @ from correction shaft (Refer to Fig 3-6), and slide the correction shaft assembly out to
the right side.
(7) Remove the two screws and the carriage motor bracket assembly .
(8) Remove the timing belt from the timing pulley(R).
(9) Move the head flex holder B in the direction of the arrow and remove it (Fig 3-7).
(Note) Assemble in the reverse order. TIMING PULLEY
SOLENO ID
BLOCK
/
HEAD PRESS SHAFT ~ •I
. SOLENOID y TIMING PULLEY (G)
SCREW
IAGE
FRAME ASSEMBLY
--_B ELT TENSION SPRING
TENSION FRAME @ Fig 3-5
-7-

t
CORRECTION
SHAFT
ASSEMBLY Fig. 3-6
CARRIAGE
- MOTOR BRACKET
ASSEMBLY
Platen Removal (Fig. 3-8)
1) Removethe E-ring ® from the shaft of the platen assembly.
2) Slidethe platen bushing from the platen shaft.
HEAD FLEX
HOLDER B
Fig. 3-7
0
3) Removethe E-ring ® from the platen middle gear shaft .
4) Slide the platen assembly, platen middle gear and platen bushing to the left of the frame, then lift the platen
assemblyfrom the frame.
NOTE:Assemble in the reverse order.
,E-RING @
PLATEN SHAFT
/
PLATEN BUSHING
PLATEN BUSHING
PLATEN ASSEMBLY
PLATEN MIDDLE GEAR
Fig 3-8
-8 -
Carriage Disassembly
(1) Remove the two screws and then the align scale. (Fig. 3-9)
(2) Remove the two E-rings from the cassette holder shaft, and then lift the cassett e holder up. (Fig. 3-9)
(3) Remove the head flex holder A by pulling in the direction of the arrow. (Fig. 3-11)
(4) Unhook the head spring , and remove the head holder and thermal head assembly. (Fig. 3-10)
(5) Remove the three screws and then the carriage cover. (Fig. 3-10)
ALIGN
SCALE
C:=:)c:=:,c:==::>
THERMAL HEAD
ASSEMBLY
C:=:) c::::::, c::::::,
□
□
CASSETTE
HOLDER
ASSEMBLY
HEAD HOLDER ------------ E-RING -----------
ASSEMBLY Fig 3-9
HEAD HOLDER
ASSEMBLY
THERMAL HEAD
ASSEMBLY
Fig 3-10
CARRIAGE COVER
CARRIAGE
~~
J15u (
HEAD FLEX ; ......-----i
HOLDER A •
Fig 3-11 (REAR VIEW)
- 9-

(6) Remove the ribbon idle gears A and B. (Fig. 3-12)
(7) Unhook the ribbon select arm spring and remove it.
Remove the ribbon select arm. (Fig. 3-12)
(8) Remove the ribbon pulley. (Fig. 3-12)
(9) Remove the intermittent winding lever and then the intermittent winding cam. (Fig 3-12)
(10) Remove the E-ring from the shaft and slide the ribbon winding gear assembly out. (Fig. 3-12)
(11) Remove the two pinch rollers. (Fig. 3-12)
(12) Remove the timing belt. (Fig. 3-12)
i
RIBBON
SELECT ARM
SPRING
~
r RIBBON/
SELECT
ARM
PINCH
· ·ROLLER
RIBBON
PULLEY
I
- 10 -
RIBBON IDLE GEAR B
RIBBON WINDING
GEAR ASSEMBLY
PINCH
/ROLLER
INTERMITTENT
/WINDING
LEVER
-INTER-
MITTENT
WINDING
NAIL
"'
INTERMITTENT
WINDING CAM
Fig 3-12
4. ADJUSTMENT OF THERMAL HEAD VOLTAGE
All thermal heads for this unit do not have the same resistance .
When the thermal head is replaced, adjust the thermal head voltage by the following procedure. DC digital volt-
meter and a small screw driver are required.
Step 1
Step 2
Step 3
Step 4
Turn the Power off
CN113
. I I I
left pin / right pin
middle pin
Create a short circuit between the middle pin and the right pin of CN113 on the Main P.C.B. Connect a DC
digital voltmeter with the left pin and the shorted pins of CN113 .
Power on with using AC adaptor .
Set thermal head voltage by rotating variable resistor VR101 on Main P.C.B according to the specified vol-
tage which corresponds with the resistance of the individual thermal head.
Refer to the following specified voltage table.
(Note) Specified voltage has ±0.03V tolerance .
Specified voltage table for thermal head (Revised)
Resistance of thermal head Specified voltage (± 0.03 V)
55!1 6.81 V
56!1 6.84 V
57!1 6.88 V
58!1 6.91 V
59!1 6.96 V
60!1 6.99 V
51n 7.03 V
62!1 7.08 V
63!1 7.12 V
64!1 7.16 V
65!1 7.18 V
66!1 7.23 V
67!1 7.28 V
68!1 7.33 V
69!1 7.38 V
70!1 7.43 V
71!1 7.48 V
72!1 7.53 V
73!1 7.58 V
74!1 7.63V
- 11 -

5. TEST PRINT
5.1 Operation
• While holding the 0 key down, turn the unit on. This starts the test print mode.
5.2 Display will read " **Printing"
• In test print mode, all characters will be printed in the following order ;
Printing Order
No. Enlarge Bold sier/Sub
cript Pitch
1 10
2 15
3 :super 10
4 ::;uper 15
5 Sub 10
6 Sub 15
7 ON 10
8 ON 15
9 ON Super 10
10 ON Super 15
11 ON Sub 10
12 ON Sub 15
13 ON 10
14 ON 15
15 ON Super 10
16 ON Super 15
17 ON Sub 10
18 ON Sub 15
19 ON ON 10
20 ON ON 15
21 ON ON :super 10
22 ON ON :super 15
23 ON ON Sub 10
24 ON ON Sub 15
After the last characters of the each case, three "H" are printed and then erased.
Print Sample
! "#$%&' () *+, - • /0 123456789 - · ·XYZ [\]A _· abcdef ghi jklmnop}
qrst uvwxyz I I}-c;;ueaagAEa!lEo - . -n±®1T+A· ·· ,X§li- B
5.3 Paper Out Sensor
(case No. 1)
I
(case No. 24)
When printing on one sheet of paper is finished, the "END OF PAPER " me ssa ge is displayed . To continue,
insert a new sheet of paper and press the ~ key.
5.4 Termination
Test printing is continuously repeated in all the 24 type cases. Each case requires two or three lines.
To terminate test printing, press the IQJJkey.
The unit is now ready for typing.
- 12 -
6. SCHEMATIC DIAGRAM
KX-W50TH
r------------------- -- ------ ~ f;.Y _ !l_(l_AR_9 __________ _ _ __ _ ____ _ --,
I I
I
r.---- - ------ ----- - f:,UN1"TI0.?4_~ ,
!MOOE 1<8 PITCH LSPACE : 1 - X
:
I
: I
I
L- ~~~~ ~~- ;~~ ~~-;;;9~t~
CN 102¥----'i' -- -"f' - ---'t------'F
'I
' 00< " S A ...
K<
III
I
..
U IU
I
:
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7
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I
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:i:
J:
□ !
41 I ~;
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. " '
' . T C W 0 'W! , ,c .. , I I l
, g,-------+--+-+-+-+--;,-+-f
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:
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...,
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00cr•,• ,. P 1' 'f' ••11~~..
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•
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6. SCHEMATIC DIAGRAM
KX-W50TH r.:---- - ·____________ J:_,UN'1-TION _ Kf;Y ____ _______________ 7
r---....-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_•_E_v____ao_•_R_o__-_-_-_-_-_-_-_-_-_-_-_-_-_-_--_-_-_--_-.-7l·~ 1jl~ j
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! ~---- ---- -- ----- ----, : I L __.J
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0
I ------- ---- ------- ----~ L-7 CNIOI --------, ,--~-_:-_-_-_-_:-_-_-_-_~__ _,
- (9:1,-',,111---------+-H-H I--+""'-if-++....-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_J--+-- --. IC105 I
.,._ _ TC40H042
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--------l !ij l~~- ++"D"'1,.,,_0<____ !-++H++-t----------------"!02
1 ,l. l -➔ +JD12! •J<0 ,7~---+-l-l+-l-ll-i--l-l---------'----- 1>10 1
------ -- ---t"I I"-, ----- >-'-'' Oo GM) ~
----------l31 IC!:;;;o!--- ~ ""'"""-"'----1-++H++-+----- -- --~ I l
Looi: H G ~ 0 ,- ,---
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------------~ ~ 1:1;;;11------- --+-H -+ -t-1
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-13-

KX-W60TH
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L==~~~-==- ,_-_~,>-- - - . I
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HOME SENSOR I
~-====---=---=--~
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SEN SOR :
PAPER OUT I
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•
•
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: 6 11 I
L ___ ....J
ICI09 1 16
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