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CE-1600E

13. Service precautions

13-1. Frame ground continuity test

Check continuity

between the shield plate

01

the 60-pin connector

and the static terminals and make sure that it is not more than 1Oll.

13-2. Square jumper installation

CD

Make preliminary

solder coating on the PWB.

®

Remove the back paper

01

the guide sheet, match the holes

01

the PWB with the holes

01

the sheet, then bond the sheet over

the PWB.

®

Remove the back paper

01

the double tack tape on the reverse

side

01

the guide sheet.

@

Remove the protect sheet of the strip of the jumper, match the

circuit pattern with the jumper position, and attach the covered

portion

01

the jumper to the double tack tape.

®

Apply the soldering pencil over the strip

01

eacM jumper and melt

solder on the pattern.

®

Then, stroke the soldered

portion with the tip

01

the soldering

oencil to ensure that it has been completely

soldered.

Strip

I

~d'~'"

I

I

I

I

13-3. Wire routing

PWB

CD

AC adapter jack socket

QJAKCI003CCZZ

Wind sold er on the

(+)

side

Apply small amount

01 solder to the

inside 01 the (-)

side and do not

permit solder to spread outside.

<:Be

SOld~

Name

Length

J

CD

Jumper

(Black)

200nn

<Il

Jumper

(Red)

200nn

I

@

Jumper

(Gray)

260nn

L....=...L._.

__

( -)

terminal

/

~~~~soldel

=

@

13-4.

After completion

of troubleshooting,

it is necessary

to adjust the

potentiometer

for the low battery

detect

circuit,

in reference

to

"Potentiometer

adjusting

method"

in this service manual,

-12-

Summary of Contents for CE-E

Page 1: ... EA 158C optional pti CODE OOZCE1600f SME MODEL CE 1600E PARALLEL AND POCKET DISK INTERFACE FOR PC 1600 3 NAME OF EACH PART AND ITS USE Pocket disk drive connector 50 pin Adaptor plug Note The interface does not have apower switch The power is switched together with the power switch of the connected computer Disconnecting the computer turns off the power for the interface CD Computer connector Con...

Page 2: ...Key Entry POKE FE79 X X denotes the value 0 3 as shown in the table below x Output End 01Line Code Listing Format 0 No Print from 8th column 1 Yes Print from 8th column 2 No Print from 1st column 3 Yes Print from 1st column When the PC 1600 is connected to interface for the first time or when the raset button is pressed X 0 will be selected Futhermore whenever the power is tumed on again the previ...

Page 3: ... Since all the outputs are through an open collector a pull up resistor approx 1kn 10kn at the printer is required SHARP recommended printers already include a pull up resistor 8 Block diagram Centronics interface PC l600 v __ vrc ir PC l600 __ J power supply circuit EA l60 AC adapter AAx5 SUM3x5 CE I600F 2 5 FDD 11 Q 1 PTI PUI EZI MINI IORQ MRQI RDNI WRNI I BO 7N NU RSTI 4_ Bu 8 bits 1 0 Buffer I...

Page 4: ...n 1 is establishedfor FFI The interrupt equivelent circuit is shown in Fig 3J RO ri I OO PAO I 0 PA I J 02 PA2 I OS V PA3t O PA I Q5 PAS I Q6 A PA61 1 tv J t Fig 3J Interrupt circuit RST An input of the reset signal on RSTI resets Reset circuit FF1 3 At the same time RSTNis issuedto the 2 5 FDD reset line and remains issued until the reset signa is canceled soltwarewise It is possble to output RST...

Page 5: ... signal CSNO J 19 PTI In High PT input 20 EZI In High Eminput 21 MINI In High MI irclut ed to create 107N and gate array interna enableJ 22 10RQ In High IORQ input Signals 23 MRQI In High MREQ input used to create CSNO 24 RSTI In High Reset input When the reset signal is entered the intemal 1Iop is reset and RSTN 2 5 FDD reset signal is sent out 25 Vcc 26 GND Power supply 27 IRQ Out Low High Z All...

Page 6: ...op the voltage from the adapter to the f10PPVdiskdrive voltage 7 5V maximum 04 For prevention 01 counter current f10w from VßAT main unit to VP Iloppy disk 05 D6 For prevention 01counter current flow to the battery when the adapter is in use CE 1600E PC 16 00 u VC VCC4 UM 3 X4 ifr After the batlery power supply is ORed with VBAT of th CE 1600E VCC is regulated to 4 7V before supplied to th CE 1600...

Page 7: ...Cl Q c E e e Q Ö Q c C ca o e e 01 cn Q 1 9 oca o t C Q e Gi CD U U e __ ä5 ä5 ä5 ci z g w Q o a a w I a a w a o a a w r o o 0 C 11l Q o a E CD ü e l C CD s üi o CW ClO 0 0 0 CD s W t ü I C Cl 1 1 Q o tU C o tU Q e o E 11l 0 e a ci öc Q o a E Q ü E l 7 ...

Page 8: ...CQ Cl _ 1 1 S S S 2 s I Q co J tj tj tj E c c c IOuD _mua O uD _a UQ e l s 1i 0 o t V Cl J E t 5 1 o U E ffi c _ J 0 SR Co s U _ c 1 e gs CI CI 1 c ffi ffi f 5 CI c E o Cll E CI s o ü5 t CD 0 c Cl 5Z 0 o 0 U Q ü CIJ CIJ t CD w o o CD w o o CD ö W ü X l 0 o t e 0 J CD GI J C GI U o Q fIj GI I ott I o r ci c 5 5 I 0 5 r E 5 a a In I w 5 I s w e e U 8 IJ cn w o c x U 8 5 CE 1600E ...

Page 9: ... 25M S5 zi OCNCMI304CC2F 0 I I r o M545 I 4AP J I X 13 7K l I 2 7K I 1f o IA I l1 50 CONNEClOA 1 I r VP 50 25 VCC I I I I 4 1 11 Z11 1 7 z 11 IZ I 3971 z VP 411 24 VCC L 0 0 e 0 f i VP 8 23 GND z I u GND 47 22 GND r I L _ ITH 46 21 RIJ EZ 20 IAIT 45 20 WR TO r 10RO 4 19 107N I IORQ BFI 43 18 MREO GA TE ARRA v 15 42 17 AO r ll AL 41 16 A r v AL3_ 40 15 A2 r 10 1 A 39 14 A3 r IRQ L R380 4 5 A 3B 13 ...

Page 10: ...I 10 I l I E ARRAY JB8045 1 1 1 1 1 1 1 1 1 1 1 zzzzzzzzzzzz CJClOClOO OOOOO r 110003 I OE I N I OE I N 110003 I OE IN 1 I I T __ 11 4 TCJ_ I I r1SUM3 X 5 I 10003 L T2200 JkF 16V lOOK 10 1 I r T T 100 lOV T OAPTOR 5 4 0 1 1 Lo I FGNo 3 2 E H F e 10 ...

Page 11: ...A4 1338 Al A5 12 37 A10 A6 l 36 A 9 A7 1035 A 8 RSTN 934 FGND 00 833 FGNO 01 732 PVOUT 02 6 31 PU 03 530 PT 04 429 Ne 05 328 MI 06 2 2 VGG 07 I 26 INTF Precautions j Diode must be closely attached on the PWB The flgure below shows the inslalling direction of the MNl2800 Lead of lhe same color must be connected 10 Ihe circuil pattern of Ihe same number for Ihe coi Match the cut in the tC with the a...

Page 12: ... position and attach the covered portion 01 the jumper to the double tack tape Apply the soldering pencil over the strip 01 eacM jumper and melt solder on the pattern Then stroke the soldered portion with the tip 01 the soldering oencil to ensure that it has been completely soldered Strip I d I I I I 13 3 Wire routing PWB CD AC adapter jack socket QJAKCI003CCZZ Wind sold er on the side Apply small...

Page 13: ...X CODE 27 58 SC 5D SE 5F 60 7B 7C 70 7E 7F e 6 II MODE0 L MODEl J t n A I CE 515P Upper 4 bits o 2 5 6 P G W g H X Y 718191AIBICIDIEIF o SPI 0 q r i l Cf t 7 81BS 9 A ILF l 16 v 7 T 8 y z B ILUIESCI K C ILI D ICR MI Im 11 E ISO IN n F I SI O SP means space The pen proceeds to the next position without plot ting any characters Blank means not defined and nothing is plotted CE 1600E When you create ...

Page 14: ...LC NW 1023ECZZ AU N C F P C C62pi 1l 107 RFilN1008CCZZ AH C Filter ESD H 14B 108 VCKYTPIEFI04Z AA C Capaeiter 25WV O I F 109 R V R M 5 3 1 O_QC Z Z AD N B Variable resistor 110 VCEAGUIAWI07M AB C Capacitor lOWV 1 U III VCEAGUICW228M AE C Capacitor_ 16WV 220 M tl 112 VCKYTPIEB104K AA C Capacitor 25WV O J El 113 VHDDAP202K l AB B Diode DAP202lU 114 VHD10EIN 1 AB B Diode lOEIl 115 VHOIIDQ03 1 AE B Di...

Page 15: ... CE 1600E I I I I I I I I I co I I l_ 30 2 3 I J nsulator I shee t I No 27 I I I I I L _ 21 15 ...

Page 16: ...produced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recordinq or otherwise without prior written permission of the publisher SHARP CORPORA TION Information Systems Group Ouality Reliability Control Center Yamatokoriyama Nara 639 11 Japan 1987 May Printed in Japan ...

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