SERVICE MANUAL

(1)

__ If

Panasonic·

SERVICE MANUAL

JD-700M/JD-800M Series

NO.1

I 2120497-01971 I

(2)

(3)

TABLE OF CONTENTS

1. INTRODUCTION ... 1 . 1 2. OUTLINE ... 2· 1 2.1 APPEARANCE ... 2 . 1 2.2 SYSTEM CONFIGURATION ... 2·7 2.3 SPECI FICATIONS ... 2 .

12

3. POWER SUPPLY ... 3 . 1 3.1 JD-700M/740M POWER SUPPLy... 3· 1 3.2 JD-800M/840M/850M POWER SUPPLy... 3 . 9 4. KEYBOARD

4.1 OUTLINE

4.2 KEYBOARD LAYOUT

4.3 KEYBOARD CODE TABLE ... ..

4.4 DESCRIPTION OF OPERATION ... ..

4.5 KEYBOARD (SBCKB ASC) ... ..

5. MONITOR TV ... . 5.1 OUTLINE ... . 5.2 MONITOR TV LAYOUT ... . 5.3 POINTS AND METHOD OF CONTROL WITH VARIABLE RESISTORS ... ..

5.4 SCHEMATIC CONFIGURATION ... ..

5.5 DESCR IPTION OF MON ITOR TV ... . 5.6 SCHEMATICS (MONITOR) ... ..

5.7 LAYOUT DRAWING (MONITOR TV CIRCUIT BOARD) ... . 5.8 PARTS LIST ... ..

6. FLOPPY DISK DRIVE ... ..

6.1 MINI FLOPPYDISKDRIVE ... . 6.2 STANDARD FLOPPY DISK DRIVE ... ..

7. CONTROL PCB ... ..

7.1 OUTLINE ... . 7.2 CIRCUIT DIAGRAM ... . 7.3 MEMORY MAP

7.4 DESCRIPTION OF LSI OPERATION ... ..

7.5 DESCRIPTION OF CIRCUIT OPERATION ... ..

7.6 CONTROL PCB ... . SBCV3 SCHEMATICS (for ~~-?29M, 740M, 800M, 840M) ... ..

SBCV4 SCHEMATICS (for 850M) ... . 7.7 JD·740M, JD·840M/850M DDPLL PCB ... : ... . 8. ASSEMBLY

8.1 JD-700M/740M ASSEMBL T DRAWING ... ..

8.2 JD-700M/740 MAIN PARTS LIST ... ..

8.3 JD-800M/840M ASSEMBLY DRAWING ... ..

8.4 JD-800M/840M MAIN PARTS LIST ... . 8.5 JD-850M ASSEMBLY DRAWING ... . 8.6 JD-850M MAIN PARTS LIST

4· 1 4· 1 4· 1 4·2 4·6 4·7 5 . 1 5· 1 5·· 1 5·2 5·3 5·5 5·9 5·10 5 . 11 6 . 1 6 . 1 6 . 1 7 . 1

7 . 1 7 . 1 7 . 1 7·2 7·3 7· 13 7· 13 7 ·31 7·50 8 . 1 8·2 8·3 8-5 8·7 8·10 8· 12 9. TROUBLE-SHOOTING ... 9· 1

9.1 PROCEDURES OF TROUBLE·SHOOTING ... 9 ·1 9.2 TROUBLE·SHOOTING GUIDE ... 9 . 1 9.3 SERVICE TOOLS

10. IC LST CATALOG

9·23 10· 1

1"

12.

13.

PRECAUTIONS ON HANDLING MOS IC ... 11· 1 MOSICLIST ... 12·1 REFERENCE ... 12·1

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(5)

1. INTRODUCTION

This manual describes necessary'means and method for trouble-shooting of JD-700M/800M series.

1 - 1

(6)

2. OUTLINE

2. 1 APPEARANCE

JD-700M/800M series 'consists, as shown

in

Fig. 2 - 1 DC power supply, keyboard, Monitor TV, floppy disk drive and control PCB

which

contains

8085A-2

microprocessor to control them.

" .••.... , . . . . . . . : ... ~: ^..^:^...

" ....•... ~;:;.:"":;: .•. ::-: •.. ;;.. .. :.~.-::~:.:::::-.;::;:::~:~:;.~;.; •.. :.:.:: .... :.-:;y.::::..:...:. ~~.-'

---~~---~

Fig. 2 - 1 JD-700M/800M SERIES EXTERNAL VIEW

(7)

NONGLARE MONlTORTV

FLOPPY D'SK

FLOPPY DlSK

CQNTRAS1' VR

MAlN POWER SWlTCH

Fig. 2.2 JO.70OM SERIES EXTERNAL LAYOUT

MONlTORTV

DC POWER SUPPL'(

"TRANSFORMER

ACCORD

Fig. 2.3 JO.700M SERIES INTERNAL LAYOUT

2-2

1 1 1 1 1 1 1

1 1 1 1 1 1

1 1 1 1 1 1 1

1 1 1 1 1 1

1 1 1 1 1 1 1

1 1 1 1 1 1

1

(8)

NONGLARE MONITOR TV

KEYBOARD

AC CORD

FLOPPY DISK

CONTRASTVR

MAIN POWER SWITCH

Fig. 2·4 JD·800M SERIES EXTERNAL LAYOUT

FLOPPY DISK

FAN

TRANSFORMER

DC POWER SUPPLY

DDPLLPCB

(ONLY FOR JD·840M) FLOPPY IIF CAB LE

Fig. 2·5 JD·800M SERIES INTERNAL LAYOUT

(9)

FUSE

ACCOR~

~"

^.•.

".,.;.,.""~

AC LINE FILTER CONTROL PCB

Fig. 2·6 JD·700M/740M/800M/840M

INTERNAL LAYOUT (FROM BOTTOM)

2·4

KEYBOARD PCB

(10)

FUSE

FLOPPY DISK

KEYBOARD 1/0 EXTEND

NONGLARE MONITOR TV

COMMUNICATION PORT

CONNECTOR (TO JM-S70 or JK-7600)

Fig. 2 - 7 JO-850M INTERNAL LAYOUT

FAN

TRANSFORMER

DC POWER SUPPLY

(11)

I I • co ...

.1

AC LINE FI L TER

rl.---

^{AC CORD}

KEYBOARD

\\:

FUSE CONNECTOR I/O EXTEND CONTROL PCB·

CONNECTOR

KEYBOARD I NTER FACE CAB LE

Fig. 2 - 8 JO-850M INTERNAL LAYOUT (F ROM BOTTOM)

2-6

(12)

2.2 SYSTEM CONFIGURATION

2.2.1 JO-700M SYSTEM CONFIGURATION

+12V:-:-: 1.1A TYP.

MONITOR TV TR12DG9F Refer to page 5-1 .

+5V:-:-:

~

r---~~===-1~2V=--=-==~==~~~

KEY BOARD SBCKBASC

CONTROL PCB SBCV3 (SBCV2) Refer to page 7-1.

CHARACTER GENERATOR

*1

EPROM M5L2716K2

/'~

± 12V :-:-:

+5V:-:-:

FAN K... SOV tV

DC POWER SUPPLY AND TRANS FORMER

9

^{t - -}

r I

+12V :-:-: 0.9A TYP.

+5V :-:-: O.5A TYP.

Refer to page 4-1 .

FLOPPY DISK JK874 (SA400) Refer to JK874 (SA400) Service manual

21204970110*

DC POWER SUPPLY ECH33B01TB TRANSFORMER SBCT11

SBCT21

Refer to page 3-1.

~

^ACINPUT 220/240VtV ^{120V tV}

-<;::=---

AC/DC POWER

---

^SIGNAL

KEY BOARD KEY TOP

*1 ASCII SBCKBASC

-

ASCII MCM66740

British SBCKBASC SBCKTPBRI

British MCM66760

French SBCKBASC SBCKTPFRE

French MCM66780 German SBCKBGER -

German MCM66770 Swedesh SBCKBSWE -

Fig. 2 - 9 BLOCK DIAGRAM JD-700M

(13)

2.2.2 JD·740M SYSTEM CONFIGURATION

+12V :-:-: 1.1 V TYP.

+5V :-:-: - - - -

r---~=====-1~2V=.= .. ==~==~~~

CONTROL PCB SBCV3 Refer to page 7·1.

CHARACTER GENERATOR

*1

EPROM M5L2716K102

±12V:-:-:

+5V:-:-:

+5VDC

L

j

+12V :-:-: O.9A TYP.

+5V :-:: 1.0A TYP.

MONITOR TV TR12DG9F Refer to page 5-1.

KEY BOARD SBCKBASC Refer to page 4-1 .

DDPLL

Refer to page 7-50.

FLOPPY DISK JK875 Refer to JK875 Service manual.

(262D497-0157*)

DC POWER SUPPLY AND TRANS FORMER

DC POWER SUPPLY ECH33B01TB TRANSFORMER

SBCT11 SBCT21

FAN 80VtV Refer to page 3-1.

ACINPUT

.<F=---

^AC/DC^POWER

---

^SIGNAL

KEY BOARD

*1

ASCII MCM66740 ASCII SBCKBASC

British SBCKBASC

British MCM66760

French SBCKBASC

French MCM66780 German SBCKBGER

German MCM66770 Swedesh SBCKBSWE

Fig. 2· 10 BLOCK DIAGRAM JD-740M

2·8

120V tV 220/240V "v

KEY TOP

-

SBCKTPBRI SBCKTPFRE

-

(14)

2.2.3 JO-800M SYSTEM CONFIGURATION

+12V :-:-: 1.1 A TYP.

MONITOR TV TR12DG9F Refer to page 5-1.

+5V:-:-:

~

KEY BOARD

SBCKBASC

r---~~-=12V=·_=·==~==d~~

^.

.?I Refer to page 3·1 •

CONTROL PCB·

SBCV3 (SBCV2) Refer to page 7·1.

CHARACTER GENERATOR

*1

EPROM MSL.2716K42

± 12V :-:-:

-5V :-:-:

FAN ... 80V "v

I I

+24V:-:-: 1.3A TYP.

+5V:-:-: O.SA TYP.

-12V:-:-: O.07A TYP.

103V "v O.3SA TYP.

DC POWER SUPPLY AND

TRANS FORMER

DC POWER SUPPLY' ECH34B01TB TRANSFORMER SBCT31

SBCT41

Refer to page 3-1 .

FLOPPY DISK JK880 (SA8001 Refer to JK880 (SA8001

Service manual 256 0497 0106*

l==(J=

^{AC INPUT} 120V"v 220/240V"v

<:;:=:= - - - -

^AC/DC^POWER

- - - SIGNAL

KEY BOARD KEY TOP

*1 ASCII SBCKBASC

- -

ASCII MCM66740

British MCM66760

French SBCKBASC SBCKTPFRE

-

Fig. 2 . 11 BLOCK DIAGRAM JD-800M

(15)

+12V::-: lolA TYPE.

+5V::-:

~

MONITOR TV TR120G9F Refer to page 5-1 .

r-____ ~~==-=12=V.=--==~=¢~

KEY BOARD SBCKBASC Refer to page 4-1 . CONTROL

PCB SBCV3 (SBCV2) Refer to page 7 • 1.

+5V::-:

CHARACTER GENE'RATOR

Jo, , - - - ,

~=========*====~v1

^I ^DDPLL

Refer to page 7-50.

*'

EPROM M5L2716K 142

±12V::-:

+5V::-:

FAN SOV-

1 I

+24V :-:-: 0.6A TYP.

+5V :-:-: 0.9A TYP.

-12V :-:-: 0.07 A TYP.

103V'\" 0.35A TYP.

FLOPPY DISK JK885 Refer to J K885 service manual 2560497 0125*

DC POWER SUPPLY AND

TRANS FORMER SBCT41

Refer to page 3 • 1.

~

^ACINPUT 120V'\"

220/240V'\"

<i== - - - -

^AC/DCPOWER

- - - SIGNAL

KEY BOARD KEY TOP

*1 ASCII SBCKBASC

-

MCM66740 ASCII

British MCM66760 French SBCKBASC SBCKTPFRE

-

2·10

(16)

+12V:-:-: 1.lA TYPE.

+5V :-:-: ____________

MONITOR TV TR12DG9F Refer to page 5-1 .

r-____ ~I====-=12V=-=--==~~~

KEY BOARD SBCKBASC Refer to page 4·1 . CONTROL

PCB SBCV4

Refer to page 7-1.

+5V:;::

DDPLL CHARACTER

GENERATOR

*1

I

^Refer^topage 7-50.

EPROM MSL271SK142

± 12V :-:-:

+5V :-:-:

FAN 80V-

-

I I

+24V :-:-: O.SA TYP.

+5V :-:-: 0.9A TYP.

-12V :-:-: 0.07 A TYP.

103V'\, 0.35A TYP.

FLOPPY DISK JK885 Refer to J K88S service manual 25SD497 0125*

DC POWER SUPPLY AND TRANSFORMER

Refer to page 3-1.

~

^ACINPUT ^120V'\,220-240V '\,

<!== - - - -

AC/DC POWER

- - - SIGNAL

KEY BOARD KEY TOP

*1 ASCII SBCKBASC

-

M5L2716KA ASCII

British M5L2716KE French SBCKBASC SBCKTPFRE

French M5L2716KF German SBCKBGER

-

German M5L2716KD Swedesh SBCKBSWE

-

I

J

(17)

2.3 SPECIFICATIONS 2.3.1 JD-700Mn40M

1) Power Suppty

Power Supply:

Frequency:

Power Consumption:

2) Processor Micro Processor:

Clock Frequency:

Work Size:

No. or Instructions:

Interruption:

3) Memory Dynamic RAM:

P-ROM:

Static RAM:

4) Keyboard Key Codes:

Key Modes:

Character unit:

Key Kinds:

Interlock:

Repeat:

5) CRT Display

120V

'V

±10%

200/220/240V rv ±10%

50 - 60Hz (Single Phase) 2.5A max. (I20V) l.3A max. (220/240V)

Intel 808SA - 2 4MHz

8 bits 246 4

32Kbytes or 56Kbytes 2Kbytes (2Kbytes Option) 2Kbytes (for Indication of CRT)

Ascn

Unshift, shift, control shift con trol 4-step shift change 8 bits

Numeric and alphabetic key Tenkey

Cursor control key

Function key (PFI-PF15, PE1- PE6), CTRL,SHIFTLOCK, SHIFT, REP, CAPS LOCK 2 Key roll over

Continuous code output by REP key and other key Speeds approx. 100rns

Display F onnat: 24 lines

x

80 characters (1920 characters)

View Area:- 220mm x 165mm

Screen Type: 12 inch p.39 green phosphor Character Generation: 7 x 12 dot matrix

Character Field: 10 x 14 dot matrix

Video Control: Highlight, Reverse, Underline, Blink

6) Minifloppy

700M 740M

Number of dist

drives; 2 2

Capacity (formatted)

per disk: 70Kbytes 280Kbytes

per track: 2048bytes 4096bytes

2 ·12

700M 740M

per sector: 128 bytes 256 bytes

sectors per track: 16 16

tracks: 35 35 x 2

Transfer Rate: 125Kbits/sec 250Kbits/sec Latency( average): lOOms lOOms Access Time

track to track: 40ms 30ms

average time: 463ms 350ms

setting time: 1 Oms ISms

Head Load Time: 90ms 50ms

Disk Motor Start

Time: lsec Isec

Media: SA-1 04 DYSAN 104/2D

7) Communications Interface

Interface: RS-232C/CCITT Number of ports: 3

Modes: asynchronous synchronous Speeds: asynchronous - 110, 150,300,

8) Phisical Specification Environment:

operating:

storage:

weight:

(pORT 1 -- 3) 600, 1200, 2400,4800 9600BPS synchronous - 1200,2400, (pORT 2) 4800,9600BPS

5°C -- 35°C 35 -- 80%

-20°C -- 60°C 10 -- 90%

30kg

(18)

2.3.2 JD·800M/840M ,,) Power Supply

Power Supply:

Frequency:

Power Consumption:

Clock Frequency:

Work Size:

No. of Instructions:

Interruption:

P-RAM:

Static

RAM:

Key Modes:

Character Unit:

Key Kinds:

Interlock:

Repeat:

5) CRT Display

120V 'V ±10%

220/240V'V ±10%

SO/60Hz (Single Phase) ±1%

3 .. SA max. (I20V) I.8A max. (220V /240V)

Intel 808SA . 2 4MHz

8 bits 246 4

56Kbytes

2Kbytes (2Kbytes Option) 2Kbytes (for Indication of CRT)

ASCII

Unshift, shift, control, shift control4-step shift change 8 bits

Cursor control key

Function key (PFI-PFI5,PEl- PE6),CTRL,SHIFTLOCK, SHIFT, REP, CAPS LOCK 2 Key roll over

Continuous code output by REP key and other key Speeds approx. lOOms

Display Format: 24 lines x 80 characters (1920 characters)

Viewing Area: 220mrn x 16Smm

Screen Type: 12 inch p .3 9 green phosphor Character Generation: 7 x 12 dot matrix

Character Field: lOx 14 dot matrix

Video Control: Highlight, Reverse, Underline, Blink

6) Floppy

800M 840M

Number of dist

drives: 2 2

Capacity (formatted)

800M 840M

per sector: 128 bytes 256 bytes

sectors per track: 26 26

tracks: 77 77 x 2

Transfer Rate: 250Kbits/sec SOOKbits/sec

Latency( average): 83ms 83ms

Access Time

track to track: 1 Oms 3ms

average time: 260ms 9lms

setting time: 8ros l5ms

Head. Load Time: 40ms 50ms

Media: SA·IOO DYSAN 3740·2DS256

Modes: asynchronous or synchronous Speeds: asynchronous -110, 150,300,

8) Phisical Specification Environment:

operating:

storage:

weight:

(pORTl -- 3) 600,1200, 2400,4800 9600BPS synchronous - 1200, 2400, (pORT 2) 4800, 9600BPS

5°C -- 35°C 35 -- 80%

-20°C--60°C 10--90%

SOkg

per disk: 250.2SKbytes 1001 Kbytes per track: 3328bytes 6656 bytes

(19)

2.3.3 JD-850M 1) Power Supply

Power Supply:

Frequency:

Power Consump~ion:

Clock Frequency:

Work Size:

No. of Instructions:

Interruption:

P-RAM:

Static RAM:

Key Modes:

Character Unit:

Key Kinds:

Interlock:

Repeat:

5) CRT Display

120V "v ±10%

220-240V"v ±1Q%

SO/60Hz (Single Phase) ±1%

3.SA max. (120V) 1.8A max. (220V /240V)

Intel 808SA - 2 4MHz

8 bits 246 4

S6Kbytes

2Kbytes (2Kbytes Option) 2Kbytes (for Indication of CRT)

ASCII

Unshift, shift, control, shift

controI4-~tep shift change 8 bits

Cursor control key

Function key (PF I-PF 15 ,PEl- PE6),CTRL,SHIFTLOCK, SHIFT,

REP,

CAPS LOCK 2 Key roll over

Continuous code output by REP key and other key Speeds approx. lOOms

Display Format: 24 lines x 80 characters (1920 characters)

Viewing Area: 220mm x 16Smm

Screen Type: 12 inch p.39 green phosphor Character Generation: 7 x 12 dot matrix

Character Field: lOx 14 dot matrix Video Coritro1:

6) Floppy

Number of dist drives:

Capacity (formatted) per disk:

. per track:

Highlight, Reverse, Underline, Blink

850M

2

1001 Kbytes 6656 bytes

per sector:

sectors per track:

tracks:

Transfer Rate:

Latency( average):

Access Time track to track:

average time:

setting time Head Load Time:

Media:

850M 256 bytes

26 77 x 2 SOOKbits/sec

83ms 3ms 91ms ISms SOms DYSAN 3740-2DS256

Modes: asynchronous or synchronous Speeds: asynchronous -110,150,300,

8) Phisical Specification Environmen t:

operating:

storage:

weight:

2 -14

(pORTI -- 3) 600, 1200, 2400,4800 9600BPS synchronous - 1200, 2400, (pORT 2) 4800, 9600BPS

5°C -- 35°C 35 -- 80%

-20°C -- 60°C 10 -- 90%

50kg

(20)

2.3.4 FUNCTION BLOCK

Microprocessor is centered, around which provided are memories of 2Kbytes P-ROM and 56Kbytes RAM.

Additionally provided are 12 inch display, floppy 2

sets as for data ftle, keyboard as for I/O device and 3 channel communication interfaces as for external connection.

Block diagram is shown in Fig. 2 - 11. 12K...,..

Interrupt

Fig. 2 - 14 FUNCTION BLOCK DIAGRAM 2.3.5 MEMORY STRUCTURE

There are provided 32Kbytes/56Kbytes RAM as for main memory and 2 Kbytes RAM as for display memory ..

Also P-ROM has 2 Kbytes.

Memory map is shown in Fig. 2 - 12.

DYNAMIC RAM l 2 K _

, 7FFF " 5 1 - - - 1

HEX EOOO

DYNAMIC RAM 24K_

1----RAM-2K-by-. . ---~} u • • HEX E7FF I - - - i CRT BUFFER MEMORY

I For Ind_ion ofCRTI HEX FOOO I - - - i

P·ROM2Kby"

--- --- ---

P·ROM 2K by... } OPtion HEX FFFF

~---~

Fig. 2 - 15 MEMORY MAP

(21)

3. POWER SUPPLY

3.1 JD-700M/JD-740M POWER SUPPLY 3.1.1 BLOCK DIAGRAM

JD-700M/740M power supply generates 3 kinds of stabi- lized DC power supply of 5V,

+

12V and -12V which are required for control PCB, mini-floppy disk and monitor TV.

Constructionally, all circuits are assembled on one PCB for easy maintenance and inspection.

Block diagram of power supply is shown below.

r---l

I I

I - - ^I ^I

-

20V"v NOISE 27V"v' SWITCHING ^I

FILTER REGULATOR

,

^I

-

^{f - -}

-

^~

-

_I

~ I

220V"v _I

240V"v _I

I I

'-- ^I

I

SWITCHING I

a: ^REGULATOR ^f

w I

~ ' - - - - I

a: I

0 u. I

en I

2

«

I

a:

.

_I

l-

I

12V I _I

,

^SERIES ^I

18V"v REGULATOR ^I

,

I I

I ^I

I I

EHBSC33B01TB

L ___________________

I

-

Fig. 3 - 1 POWER SUPPLY BLOCK DIAGRAM 3.1.2 SPECIFICATION (JD-700M/JD-740M)

• Input voltage: 120V 'V ±10%

220/240V'V ±10%

• Input frequency: 50-60Hz

• Output voltage/current: +12V/3.3A max.

+SV/SA max.

-12V/O.IA max.

• Overall stability: ±S% or less

3 - 1

+12V :-:-: -CONTROL PCB OUTPUT

-MINI FDD +12V:-:-: -MONITOR TV RETURN

+5V:-:-:

OUTPUT -CONTROL PCB -MINI FDD +5V:-:-:

-RETURN

-

^{12V :-:-:}

RETURN -CONTROL PCB

-12V:-:-:

OUTPUT

80V"v _ FAN

(22)

JD·700 n40 lAC 100Vl120V - ) AC/DC DISTRIBUTION A

TRANS FORMER SBCTII

TO FLOPPY UNI T 1 CONNECTOR

e

(/-480424-0)

TO FLOPPY UNI T 2 CONNECTOR q (1-480424 -0)

TO FAN CONNECTOR 5 (/- 480304-0)

W N

PIN

CO

(1- [0 (J-

MA IN PO (SDE358

.(

AC LIN (ME-20

WHITE _BLUE (4:3'2

IJ

PIN J4:3:2;tJ

J~

(/10121-1J

T

GRAY BLUE

2 YELLOW

ORANGE ^ltoc:~^~

"

~ ~ ^U ^u

I~

^PIN

3 GREEN BLACK

ORANGE ^u~<::

~

'"'t '"'t

I~

^(60620-11 ^{I: 2}

Q '"'t

3~ ^-.JQ: FIN 12

RED lA.J I~ ^~

0..--

Q:: ~o Q::

" 10l21-/J I 70121-/l-=-

C~ _Lu

l:) ~

0

~ ^~^I~.Ci:

ECTOR 4

10426-0) I 1:2:3 '4JPIN(()0620-1) 0

'ECTOR 3

I

I: 2:3

:.1J

PIN (11OI21-/)

0424-0) ~ ~ ^I ULlOl5 PIN(/70/21-J)

~ ~ l

^AWG#lB ^CONNECTOR⁶

" Qj)r:r~,JOUT ~/-480424-0) I 2 3 4 J

R SWITCH "2 . CONNECTOR 7 I 2 3 4 J , II ")2_1N (/-480426-0)

~ ~

PIN' dO()20-/)

YNECTOR ti.~

) '7 lA.JLuIt.... Lu

)Q24-/ / . 2 PIIVIIS0620-Ii

~

^lu "" "" "" ""

"""I~

<.::> "" ""

t; t;

'NECTOR

I~

PIN(l70121-1)

~ ~ ~

^Lu ^{Q Q Q}

~I~ ~ ~ ~ ~ ~:q ~ ~ ~

'"'t '"'t

JQ23-IJ

ts

<:('"'t _-.J-.J

ts ~ ~I~

0 0

^:3

Q:l

~ ~ ~ ~1Ci:

^iil

ⁱⁱ⁵ ~ ~lgl~ ~ ^co ~ ~ ~

.

~~ .

"ILTER

.~

^. ^DC

I • I • AC AC DC+5V DC +5V DC --I2V DC +12V DC+12V SG

27V IBV . SG -12V SG

~I~I -=- CHASSIS

DC POWFR SUPPLY (fHB SC33801

r)

MODEL

~

....

CONNECTOR II 070Q24-f) CONNEC TOR 10 ( 170Q23-1)

r - -

RED 6

BLACK

'5""

BLACK _--;,- BLACK

OOj

BLUE -?"

ORANGE ^-.

;-

'--:-

f

TO -NONITOR TV

~

-

»c... w

co:..

nO

n8

03:

-:::r

(I)~

-to ~3:

c»

CD-

0-

-tn

28 »< --

~

f

TO CONTROL PC81XP.s CONNECTOR 12

(/-480270-0)

'N (170/21-11

CONNECT/ON PIN 160620-/1

NAltY

JAPAN

JD-700M ^AC Sill TCH OUT -PIN2-CONNECTOR3-PIN2 USA AC SWITCH OUT-PIN2-CONNECTOR3:'PIN3 JD-700M

AC CORD ( VM 0033)

(23)

3.1.4 JD·700Mn40M 100V/120V.

AC/DC DISTRIBUTION PARTS LIST

L OC. PART NO. PART NAME

^&

DESCRIPTION REMARKS

VMOO33 AC CORD 120V for U.S.A

KR -51 CORD BUSH

932006022 FUSE HOLDER 100V/120V FH-032

ST6-125V5A TIME LAG FUSE 100V/120V

9 199 5 1 060 CONNECTOR 170923-1

9 199 5 1 157 PIN/R 170121-1

9 199 5 108 6 CONNECTOR 170924-1

9 199 5 6 1 7 0 PIN/P 60620-1

ME-202V1 AC LINE F I L T E R

SDE3SB-l MAIN SWITCH 100V/120V

1-480424-0 CONNECTOR

919951066 ^/I 1-480426-0

212D34300451 TRANSFORMER SBCTIl 10OV/120V SBCTII

EHBSC33B01TB DC POWER SUPPLY

EHBSC33B01T DC POWER SUPPLY

VMl182 AC CORD 100V for JAPAN

3-3

(24)

w

~

TRANSFORMER S8C T 21

W H I TE r:=;j"j" _BLUE

(/-480304-0) CONNECTOR ^{TO FAN} 5

l

^I -':;",~~-i ^BLACK

~

⁽⁽

~~ADN~E [...-.----...-.=..

PIN 1170121-1 J

CONNECTOR 6 (/-480424-0)

....-:-~~:-t

TO FLOPPY UNIT I TO FLOPPY UNIT 2 CONNECTOR 8 CONNECTOR q (1-~80424-0) PIN (f-4B~4?4-0)

11' r? :! I

"70121-/1

11 ; r? : ( ^I ...---"---@:NITONTV

~I:.cl~

~1:3:S ~

uu~

Q:Qlcno

=-=1~4J

LJLJ~

ClI"q: _l.u-.J -.J ~. ~ ~ Q:cnQlo

PIN CONNECTOR II

'606~-J) (l70Q24-/J PIN 112 CONNEC TOR 10 (/70121-1 J~ (J70Q23-/)

l:J~

~u

~~ ~~

~ ~

»'-

bt nO

a':"

n8

03:

-::::J

cn~ -to

~3: CD_

c»

-tn

ON

2~

n<

~

8 <

l

CONNECTOR 7 ~....,...~_

(/-480426-0) PIN

~~---4-~~~~~-+----~~--~

6

---+-4--If---+---+-+---f--~~~---i ..

_f-

TO CONTROL PCB.DCPS

,-+---~.J...lI:..U---t ]-- CONNECTOR 12 ...---f--+-f---f.--+-t-f--f----=.:~~:___i- ~ - (/-480270 -0)

"'-+--+-J-.f-+--~:..:.a.:..:..:~--t -

or

CONNECTOR (170q2J-I)

AC LINE FILTER (NE-202VJ

~ -=CHASS/S CONNECTOR 2 ::i ~

(170Q24-/) 1 ;

2

PINl60620-i) CONNECTOR I 1 : 2 PIN(/ 10121-1 J (J70Q23-1)

*'

AC CORD

( 6'06'20 -I J

~l.t.J

I ~ ^~ ^en

^U^~~"q:^-.J ^I..J^-..J^CQ

'----

PIN (

i

1012/-1 J

~ ~~4.,

l4J

t3

~ ~~

~ ""t "{ ~~

~I ~I ^{[5 '"} ~ ~

^LJUULJ

:ac:1~1~1~

"q:~"q:oo::(

~c6a5~

AC

I

AC IDC+5V IDC +5VIDC

1~2~1

DC +12V IDC+12V SG 27 V 18 V . . S G -12V S G

DC POWER SUPPLY (EHB S~J380IrB)

MODEL

~

^{AC CORD} CONNECTION

AUSTRALIA VMOIIB AC SWITCH OUT-PIN2-CONNECTDR3-PIN4

I JD-700M-A 240V AC

BRITISH 1-534-82012 240V AC ^I

JD-700M-E EUROPE·

JD-700M-(j

~Sl)(I),.,.S" ... ""L

VMOOQq 220 V A

(25)

3.1.6 JD-700Mn40M 220V/240V

AC/DC DISTRIBUTION PARTS LIST

L OC. PART NO. PART NAME

&

DESCRIPTION REMARKS

VM 0418 AC CORD 240V for Austral ia

VM0099

"

^220V for C ontirent(EUI-DPe)

1-534-132012

"

^240V for British

KR - 51 CORD BUSH

FH-033 FUSE HOLDER 220V/240V

S T - 2.5 A TIME LAG FUSE 220V/240V

919951060 CONNECTOR 170923-1

9 1 995 1 157 PIN/R 170121-1

9 1 995 1 086 CONNECTOR 170924-1

9 1 9 9 561 7 0 PIN/P 60620-1

ME-202V1 AC LINE FILTER

SDE3SB-E-1 MAIN SWITCH 220V/240V

9 1 995 1 066 " 1-480426-0

212D34300461 TRANSFORMER SBCT21 220V/240V

3·5

(26)

Z?Vrv

w

0)

FS2

IBv ~

CI

4r;oa.f

sov +

+ t

(.

CI5 W SJV

el/

i~~1 .

^K

1 I ¹ ^'~4.8kjll

+C25

4'l/tf:

50V

e21

471'F 2SV

Ie

.3

D3/

IOEI

R22 3.3.(2

.I

L II bA 2so.-uH

04-/

IOOO~~

35V

R/6-2

(VBSt 3W

L21 . 6~~50""H f I

C24-1 ZZOO,MF

16V

R26-2

a.56~

3W'

t

+ +

CI4-Z

IOOO,llF

35V

+ C24-2

Z200~F 16V

+C32

ZZO,lflF 16V

+5V

==

5 A",~

q

t/2V

==

3.3A""t..x

G

Gr

0.1 A _'-"

-12

V ---

~

"

en'-0 0

x.:...

mo

3: ⁰

»3:

....

^::;,

-~ 0 0 ens:

C o

.~

:E m

:xJ en C

"U ."

r-

-<

iii :J:

g: o

~ ~

~

!!!

-I

(27)

3.1.8 PARTS LAYOUT (EHBSC33B01TB)

•

Fig. 3 - 2 PARTS LAYOUT DWG.

3-7

(28)

3.1 .. 9 JD-700Mn40M DC POWER SUPPLY (EHBSC33B01TB) PARTS LIST

L OC. PART NO. PART NAME

&

DESCRIPTION REMARKS

DBI KBPC802 Diode bridge lOA 200V

DB2 S2VB Diode bridge 2A 200V

ICI EHD-SC305RI Regulation IC IC2 EHD-SC312Rl Regulation IC IC3 I117912CT Regulation IC Qll, 21 2SC2334 Transister Q12, 22 2SA777 Transister

Dll, 21 S6K Diode

D31 lOEl Diode

Lll, 21 SN14-561 Choke Coil 6A

250~H

Rll, 21 ERG2ANJ681 Metal 680Q 2W

R12, 22 ERD25TJ332 Carbon 3.3kQ 1/4W

RIJ, 23 ERD25FJ330 Carbon 33Q 1/4W

R14, 24 ERD25FJ561 Carbon 560Q 1/4W

R15, 25 ERGIANJ182 Metal 1.8kQ IW

Rl6-1, 26-1

ERF2AKRIO Non flame O.IQ 2W

R16-2, 26-2

ERF2AKRIO Non flame O.lQ 2W

R17, 28 ER025CKF4711 Metal 4.77kQ 1/4W

R18, 27 ER025CKF6201 I ^Metal 6.2kQ 1/4W

Cl ECET50R472SL Electrolytic

4700~F

50Y

CII, 21 ECEAIES470 Electrolytic

47~F

25V C12, 22 ECEAIESIOO Electrolytic

IO~F

25V

~ C14-1,14-2

ECEAIVSI02 Electrolytic

lOOO~F

35V

C24-1, 24-2

ECEAICS222 Electrolytic

2200~

16V

C15, 25 ECEAIHS470 Electrolytic

47~F

50V C16, 26 ECEAICSIOO. Electrolytic -

_IO~F

16V

C31 ECEAIHS471 Electrolytic

470~F

50V

C32 ECEAICS221 Electrolytic

220~F

16V

Cl7 ECQMIHI03MZ Plastic film IO,OOOPF 50V C27 ECQMIHl54MZ Plastic film 150,OOOPF 50VI C13, 23 ECKDIH332KB2 Ceramic 3300PF 50V

FSI Fuse F5A

FS2 Fuse F2A

F2041A20L-IOP I ^Terminal

(29)

3.2 JD-800M/JD-840/JD-850M POWER SUPPLY 3.2.1 BLOCK DIAGRAM

JD-800M/840M power supply generates 4 kinds of stabi- lizedDC power supply of +24V, +12V, +5V and -12V which are required for control PCB, floppy disk and monitor TV.

Constructionally, all circuits are assembled on one PCB for easy maintenance and inspection.

Block diagram of power supply is shown below.

r- - - ^{- I}

1 I

I· I

2OV"v

-

220

-

240 V"v V"v

I - - NOISE

FILTER

I - -

w a:

:E a:

0 u.

en Z

<t

a: l-

I I 32V"v

I I ^~^I--

I

- -

r- ^{L - .}

' - -

27V"v I 1 I 1 I

1

I lSV""

1 I

I I

SWITCHING ^I

REGULATOR ^I_I

I I I I I I

SWITCHING 1

REGULATOR I I

I I I I

"

^I

SWITCHING I

RE.GULATOR ^I

I I 1 I I I

12V 1

SERIES ^I

REGULATOR ^I

I 1 _____ E!jE!.S£~~l.T.~ ______ ..J I

Fig. 3 - 2 POWER SUPPLY BLOCK DIAGRAM 3.2.2 SPECIFICATION (JD-800M/JD-840M)

• Input voltage: 120V "v ±10%

220/240V"v ±10%

• Input frequency: 50Hz or 60Hz (flXed) ±1%

• Output voltage/current: 24V 1.7 A max.

12V I.SA max.

• Overall stability:

SV 6.2Amax.

-12V 0.3 SA max.

±S% or less

3-9

....

-

1'>

,....

+24V:-:-:

OUTPUT +24V

RETURN

+12V :-:-:

OUTPUT +12V RETURN

+5V:-:-:

OUTPUT +5V RETURN

-12V RETURN -12V :-:-:

OUTPUT

-

103V"v

- -

~ SOV"v

eFDD

eCONTROLPCB eMONITOR TV

eCONTROLPCB eFDD

e FDD

e FAN

(30)

eN

~ o

BLUE

AC LINE

r

^{lJJ -.}

FILTER

I

(GT:-205Vi )

L

t __

AC CORD IV/lt70033)

~T I-~-I FUSE HOLDER

I I

I FH-032 I

I I

^FUSE

I_:J

IST6-L?5VSA)

IN

TRAIVSFCRMER

ISlJ£..I.J.J

I

BLACK.

I I I

I

t':_J

I

DC POWER SUPPLY , EH8S,£34EiQ1I.J

I d.n<t,.2

V()?AMii

I

GREEN

I 1

TV

CONTROL PCB DCPS

CONNECT.9 (/-480210-0) PIN 1/70121-/1

t :12:'" I}~=>TO

FLoppy UNIT I

N ~

»'- W -do

nO _Co

no

c3:

-- ~~

~3:

m-

e»

-tn

·0 -

z~

»<

l

\, 61' ....

^FI (-{i CONNECT J- IO,II-I1:0CJ210-0J PIN" 10121-1)

r "i

Sfrt 24,> ^P

~j = .. "l:-

_~_J==>TO FLOPPY UNIT 2

IS ...

1_-,_

J"

, " " ... " . " Of (-{1CONNECT'"'-480:??O-O)

PIN [llOI.?! -I J FANIWEJ 5584'

CONNECT/3

lI-tJ00304-0Ifor JD800lA 1/-4B0100-0Jfor JD 840 U·

PIN

1170121-1} for JDBOO 1350550 -I) for

JD

840

(31)

3.2.4 JD-800M/840M 1 OOV /120V

LOC. PART NO. PART NAME

&

DESCRIPTION REMARKS

VM0033 AC CORD 120V _forU.S.A

KR - 51 CORD BUSH

932006022 FUSE HOLDER 100V/120V FH-O 3 2

ST6-125V5A TIME LAG FUSE 100V/120V

919951060 CONNECTOR 170923-1

9 1 995 1 157 PIN/R 170121-1

9 199 5 108 6 CONNECTOR 170924-1

9 199 5 6 1 7 0 PIN/P 60620-1

GT-205Vl AC LINE FILTER

SDE3SB-l MAIN SWI TCH 100V/120V

919951056

"

1-4804:26-0

256034300471 TRANSFORMER SBCT31 100V/120V

350550-1 PI N/R Only for ID 840M

EHBSC34BOITB DC POWER SUPPLY

F126-5P TERMI NAL

VM1182 AC CORD 100V ^forJAPAN

3 - 11

(32)

w

~

I'J

AC LINE -lJ ^{0 -}

FILTER

I

(GT-205

CCYVNECT2

1J70.9~-1J1 i I ~ ~NI60620-/1

CONNECT I 1 1 'N 111012./-1 J

(/70923-/) .

BROWN CHASSlS~

C

IN ::::>

A(220

AC200y

\~

.Jl.240Y

t

CCYvNECT 71/70.923-11 PINtl70121-1 J

fONNECT81170SJ2t1-/) PIN(60620-IJ

I

lli1

^t¹²¹

^@==:>

TO MDlVI TOR TV

~

i

^.sG(tI2r)

FAN

tlZCf

^AN6E. I -12 V z

Sa

(tfll) - - -

oS It -IU) -.3_. ==:::::>TO CON TROL PCB

S^r..(~J't) ^{- -'--} DCPS

u 1'- CONNECTS) (/- 480270-0 I tS'"v REJ) - { -PIN (170121-11

~ A)CI(-'lv) I=}~~==:::>TO z FLOPP, UNITI

t -, -

^{o w}

r{--

^CONNECT¹⁰1I-48J2iO-OJ

~a ^(t-rr) ^{- - [ .}PIN 1110121-1 )

w N

»'- en

-do

0 0 _CC) OC)

c ^3C

--

en ^OO

-4~ ::cC)

-3C

a l _

e»

-4n

ON

z~

"11<

~ ~

<

1

kO---- - .. - " " I ~:I}i

-- --

J 3 "....,... ". .

l

(WEJS584J ACI03V trRAY

( ~ [I

AC 10J

v

BLACK

==>TO FLOPPY UNITI CONNECTI2

I I

CI)

L_.-J

MAPK*

MODEL lfiiiAustral,"r)

For (nnt;f1f'f?NEiJrOIlel IFnr British

L

^lPIN (60620-/) ^CONNECT6^(1-48030S^-0)

CONNECTS (, 1-4m304 -0) PIN( I

AC CORD C(JVNECT 3 COfl."IECTION

VMO//8 /WAIN POWERSWIT(j-/OUT-~/N-COVf\f(!3-3 v/~"OO9.9 Vl1;J../N POtVf,~SI,1'lTCHOUI -2PIN-,>((l{IINEa'J-S

as

HAIN PCJvi/ERSJfITQjOUi -2PIN-C(\fbVECT3-3

(/-400304 -0 J for JD800 U l/-4B01CXJ-O }for' JD840U

TO FROPPY UNIT 2 CONNECT 13 .

(/-4803J4-01 for JDOCJOU I/-480700-0Jfor JD8L10U PIN

(/7[)I21-1 J for JDfiOO (350S50-lIfcr JD8LJO

(33)

3.2.6 JD-800M/840M 220V /240V

L OC. PART NO. PART NAME

&

DESCRIPTION REMARKS

.. -.-

VM 0418 AC CORD 240V for Austraria

V MO 0 9 9

"

^220V for Con tinen t(Europe)

1-534-82012

"

^240V for B r i tis h

KR- 51 CORD BUSH

F H- 0 3 3 FUSE HOLDER 220V/240V

ST-2.5A TIME. LAG FUSE 220V/240V

9 1 9 951 060 CONNECTOR 170923-1

9 1 995 1 157 PI N/R 170121-1

9 1 995 108 6 CONNECTOR ^170924~1

9 199 5 6 1 7 0 PIN/P 60620-1

GT-20SV1 AC LINE F I L rER

SDE3SB-E-l MAIN SWI TCH 220V/240V

9 1 995 1 066 " 1-480426-0

256034300481 TRANSFORMER SBCT41 220V/240V

350550-1 PIN/R Only for JD840M

EHBSC34BQ1TB DC POWER SUPPLY

F126-5P TERMINAL

\

3·13

(34)

w ...

,1:1.

A.CIN 100"

11 Sv

200 " ~ t N:. CORD 230"

moWN

T

it fUSE

ACOOV K11SV

CONt-.a::CT 1 CONNECT 1 TO SWITCH<D-fTl SWlTC

TO swm:·u

0 1 i tr4

a:11Q6-{) TRN6fCR.ER DC R:M£R

5LFfU~

0-1)

~

^OYo^-..0. ^III ^{R . I .}

j«T ~-O)

^{- -}

~B~ 14£l¢f- - -mu ~ E

1 - 1 - - - - - ~fv

W) OV

L

^1\1 ^R

CHASSIS

AC2(XN Aam

COONEeT 1 ~4ECT 1

SWlTa - -

'*1

r¢; l¢;

1O~v6 I I

I 1 __ -

MODEL FQrAmerica For Australia

For ContinenHEuroPe) For British

AC CORD VMOO33 VM0418 VMOO99 B53 xO.7Smm:l

w ~

~ c...

do

c

==>

TO MOt4000 TV en

0

3:

~ (")

-

^C^(")

===:> TO ~ PCB C C;;

~ ~ ... 46:tl1O-O)

-f

Pri(t - J :IJ

a:J C

:::!

0

===:::> 10 fLCf'PY un ¹ ^Z ID-4te:T ~ R-400Z70-o)

PlN(l7012 -I

!:!J

- ,

2

n

^::==>¹⁰^Fl.1PPY ^{UtllT 2}

4"

~

^CWt£CT9 \\-400270-{»

~ PIN(17012l-

~---

====> 10 ft..a'PY UNIT 1 roHNErT 10

fl-4OOD1~

tor

JD-8:XMJ/lnoHJ b4OO7OO-O

ex-

JD-84OH.J/B5(l-tU PIN

~ 10 fLOPPY UNIT 2 HEeT 11

1-400~ lor J D-an-ruIBn-tJ 1-400 I~ JD-840t-tJ/8SOHJ PIN

170121-1) ~ JD-f(X).tU/81OHU

~1) J D-a4OHJIB50t-tJ

CORD COLOR FUSE HOLDER FUSE IG)WHITE ®8LACK FH032 S T6-125v SA

@BLUE G)BROWN FH033 ST-2.5A

®BLUE ®BROWN FH033 ^II

®BLUE @BROWN FH033 ^II

(35)

8.2.8 JD-850M 220V /240V, 120V

AC/DC DISTRIBUTION PARTS LIST

L OC. PART NO. PART NAME

&

DESCRIPTION REMARKS

VM 0418 AC CORD 240V for Austraria

V MO 0 9 9

"

^220V for ContinentCEurope)

1 - 5 3 4 - 8 2 0 1 2

"

^240V for British

KR - 51 CORD BUSH

F H- 0 3 3 FUSE HOLDER 220V~/240V

ST-2.5A TIME LAG FUSE 220V/240V

9 1 995 1 060 CONNECTOR 170923-1

9 1 995 1 157 PI N/R 350650-1

9 1 995 1 086 CONNECTOR 170924-1

9 199 5 6 1 7 0 PIN/P 350690-1

GT-205V1 AC LINE FILTER

SDE3SB-E-l MAIN SWI TCH 220V/240V

SDE3SB-1 MAIN SWITCH 100V/120V

-

919951066 CONNECTOR _- 1-480707-0

- -

256034300481 TRANSFORMER SBCT42 220V /240V

350550-1 PIN /R

F126-5P TERMINAL

VM0033 AC CORD 120V for U.S.A

VM1182 AC CORD 100V for JAPAN

932006022 FUSE HOLDER 1 OOV /120V FH-032

ST6-125VSA TIME LAG FUSE 1 OOV /120V

3 - 15

(36)

w en

32

v

^{" V}

2.4A

Z?V rv

2.0A

IBv '""'--'

O.3SA

FSJ

~

eZI

IOO~F

63\1'

; +

e22

4')t1F

2SV

.C3/

IOOjJr:

63V

RI2 3.3)(2

[32 u-_, •

1 4]":1 ,.-- 1 I r'""""!

^50V

I

C41

t 470~F 50V

041 JOEl

LII 6A z50,.,H

DII S6K

RIB o.185l 3'(J

R2B 0.1 !i

2w

CI?

1000~F

·35V

C2?

IOOO,.F .35 V

~

-t

t

on:

-t 12100

(42 220*

IbV ...

,-!IF 16v

+24V I. ?AMa.-J.

(;;,(+24V)

+

12 V

===

1.5 A WI...x

(;, (t/2V)

+ 5 V ::-::-::

6.2 A W\~"

6 (+ 5V)

G

(-/2V) 0.35

Al'\o.X

-/2 V

~ w

CD (1)'-

no

::I: do mo 3: ⁰

»3:

~i (l)s: no

~

_o

3:

n o

"'D

i

m

::c

(I) c

"'D

r-

-<

m :I:

(I) to

n ~

to o

-

^-4

~

(37)

3.2.10 PARTS LAYOUT (EHBSC34B01TB)

o

...

⁰¹¹

"¥""

AI'

, BLACK 1.J4p

.. 'C •

All

__ .J!_

~e

o

I~D:I

--,

_.'---'

I ,

• R3I-t L __ ..J OBl

- - J j - - +

1 I....

~

031

Q3. E C I

!

I

^N ^-<>-

^"J' f'! ^D f""

J':o-~.. tAl' J'~' Al.t ~

^QJ2

+0'"

'" -

011

r - - I I l- __ ..J I IC4

23.

FS I F5A

04.

f

^C4.

[JJ ^l-- ::~- :::=J~~: '6'

⁺

-8+

r 1~G5-- ^IBtsCDc31

-it- rt\

C37-t + I + C34~

+

^e3l ₊ ^{FSl F5A}

DaD

CDC42 - - " ' -

.. Jl2 FS3 F2A

I

m~t~l~i'~'i 0 ^0.J·3

rl'\.J15rl'\ - -

~~~,_ r--J~----o

_{- 0:-' -} _{_-_:3.-}

.J16 --

o

SWM-IIIA

Fig. 3 ·4 PARTS LAYOUT DWG.

3 -17

•

(38)

3.2.11 JD-800M/840M/850M DC POWER SUPPLY (EHBSC34B01TB) PARTS LIST

L 0 C. PART NO. PAR.T NAME

&

DBl, 2 KBPC802 Diode bridge

DB3 S2VB Diode bridge

ICI ·EHDSC312Rl Reguration IC IC2 EHDSC324Rl Reguration IC IC3 EHDSC305Rl Reguration IC

IC4 IM7912CT Reguration IC

QII,21,31 2SC2334 Transister Q12,22,32 2SA777 Transister

DIl,21,31 S6K20 Diode

D41 lOEl Diode

Lll,21,31 SN14-561 Choke coil Rll, 21 ERG2ANJ821 Metal

R3! ERG2ANJ.681 Metal

RI2,22,32 ERD25TJ332 Carbon RI3,23,33 ERD25FJ330 Carbon R14,24,34 ERD25FJ561 Carbon R15,25,35 ERGIANJl82 Metal

R16, 37- ER025CKF6201 Metal R17, 36 ER025CKF477l Metal

Rl8J28,

ERF2AKRIO Non flame

38-1,38-2

R27 ER025CK332l Metal

R39 ER02 SCKF62RO Metal R40 ER025CKF2S00 Metal R26 ER025CKF620l Metal

Cl ECET63R332SL Electrolytic C2 ECET50R472SL Electrolytic ClI,2l,3l ECEAIJSlOl Electrolytic Cl2,22,32 ECEAIES470 Electrolytic C13,23,33 ECEAlESIOO Electrolytic C14, 34 ECEAlCSlOO Electrolytic C24 ECEAlHSORl Elec.trolytic C17, 27 ECEAlVSlO2 Electrolytic

c37-1,37-2

ECEAlCS222 Electrolytic

C4l ECEAlHS47l Electrolytic C42 ECEAlCS22l Electrolytic C16,26,36 ECKDlH332KBZ Ceramic Cl5,25,35 ECQMlHlO3MZ Plastic film

FSl, 2 Fuse

FS3 Fuse

DESCRIPTION REMARKS

2A lOOV -

820Q 3W 680Q

2W

3.3kQ 1/4W 33Q 1/4W S60Q 1/4W l.8kQ lW 6.2kQ l/4W 4 .. 77kQ l/4W O.lQ 2W 3.32kQ 1/4W 62Q 1/4W 250Q l/4W 6.2kQ 1/4W 3300llF

63V

4700llF SOV lOOIlF

63V

471lF

^25V

lOIlF 2SV lOIlF l6V O.lIlF SOy

1,OOOIlF

35V

I

2,2001lF l6V 470 llF SOy 220llF

^16Y

3300llF

50V

lO,OOOPF SOV 5A

2A

(39)

4. KEYBOARD

4.1 OUTLINE

This keyboard consists basically of microprocessor, P-ROM and keyswitch.

As primary functions, it provides 4 kinds of shift functions, i.e. unshift, shift, control and control shift, CAPS·

LOCK and CAPSLOCK shift and data code output is generated by ASCII code.

4.2 KEYBOARD LAYOUT

I PE1 I PE21 PE31 PE·I

^PES

I PES I

' '

1

I

² ³ _T^E^N

0 R

Y

*2 lamp key

.,

ASCII

I

^BRITISH

I

FRENCH \GERMAN

[JJiUJiITJiOJ

3 I : 3 I 3 I 3

r:l1Q]![JlrTl

LJi

^t I 1\ !~

CD'CD:[JJ;~

CD ITJIITJ!C]

) I

I ;

m m ^Dl0

D'D,ITJIGJ

^\ ^I ^\ ^(: ^I ^,

~i ^y

^I

~ ~ ~

0 0 0 c:J

C] C] IT] G

Fig. 4 - 1 KEYBOARD LAYOUT (ASCII I -

4 - 1