TTI s Service manual

'S Series'

DC Power Supplies

Service Manual

Book Part Number 48511-0060 - Issue 3

GEilENAL
Service Handling Precautions
Service

that
subjected to excessj-ve
soldering iron
attempting to remove a

Dismantling
I{ARI{ITIG !
Openlng

be disconnected from alI voltage sources before any adjustment,
maintenance and repalr during which
adjustment,

inevitable, it

the

1. Remove the B

2. Liff

3.

work

the

the

hazards

screws

To

remove
remove
now be
be rotafed clear of the case l-ower.
the 4 MJ screws through the

should onLy

tracks on the

remove

and

the Instrrrnent

instrument

maintenance

shall

invol-ved.

side

on dual units) notOing

fhe

off

the J control knobs,
pulled

case

a nain

(linear

clear of the front

be

printed

heat. Use

all solder with

component.

likely

is

repair

or

be carried out only

screws

upper.

carried out by skilled engineers. Please

circuit

to

(plus

the case upper.

supply)

which

rear

board

only a

expose live

it

shal-l be

Lhe

of

by a

2

Lop

pcb,

remove the 4 nyJ-on

are refalned

panel

To

panel-.

are

very

miniature Lemperature

sol-der wick

parts.

opened.

opened instrument under

skllled

screws on

by

the

and
remove the logic supply

wiring harness

flne and

or

The instrumenl

If

person

triple

grub

units or 2 handle

fi-xing

screws. The

note

may lift if

controLled

suction

replacement

afterwards

who is aware

allows it to

before

shal-1

volLage is

screws and

pcb

pcb,

remove

or

any

of

can

4. Transistors
on the logic supply

Reassembl-e

5.

Operating Voltage

the Power

See
volfage
units.

of

Supply section on

single

Q5, Q6

1n reverse order.

and

are

and dual unlts. See

on the linear supplies and

Q7

insul-ated from the heatsinks.

page

B

for det,ails of

page

20 for details

Q2

Q1,

changing

changing

of

D10 and

Lhe operating

SCR1

triple

TECHIIICAL SPECIFICATION
Ortput Voltage Setting: By

5mV across

Output

Ortput

Output

Output
Output

Output

Load
Line

Current Setting:

llode: The power

Sritch:

Ter"ninals:

Inpedance:

Constant

Constant

Regulation:

Regulation:

Voltage:
Current: Typically

Protection:

By

constant
display

Isolates

limits

4mm

Typically

Up to maximum
diode
reverse

<0.01$ of

<0.01[ of

coarse

single

voltage

annunciator

the

bo

terminals

clamped for reverse

cunrent.

maximum

naximum output

fine eontrols;

and

range.

the

logarithmic

supply operates

modes with automafic

output

be set

(5mOhm
5OkOhm

up

19nn

on

at
with voltage

output

output

control.

indicates

penmits

and

before

lkHz

connecbing

(.75n)

voltage

for 50X

for

resolution

in

consfant

constant

voltage

spacing.

limif

voltages and up to

10[ ]ine voltage

at maximum

+20

Volts

Ioad change

better

current or

cross-over. A

current mode.

and

current

load.

the

forwardl

change

than

3A

Ripple
Transient

Tenperature

l{eter

Heter

Heter

Power

hvironnental
Range:

and

Type: Independent autoranging

Resolution:
Voltage:
Current:

Accuracy:
Voltage:

Currenf:

Requirenents:

Input
Input

Power

Voltage:
VoJ.tage

Consumption:

Xoise:

Response:

Coefficient:

Rangez

OPerating

Typically
(2Ousec

change.

Typica1ly

voltage and

10nV up

1mA

up Lo

0.2%

ot

0.5fi

ot

Internally
+/' 10ft ot

150VA for

to

5oC

(1nV

to within

(10Oppm/oC

to

2A, 10mA

reading
reading

single

40oc, 20ft

rms

current

20V,

set
voltage

100mV

above

+

1

+

1

fon 110, 120,

setting

units,

to 80tr RH

5OmV

indication.

digit
digit

of

above

2A

300VA

0.5''

20V

setting for

3.5-digit

220

for duai

240VAC

or

units

load

9Ol'

LCDs

50/60H2

for

Environnental

Penge:
Size:
Ueight:

Storage

-20oC

160mn wide

308nm

4.9kg

9.6tg

to

wide
slngle
duat

+60oC

160mm

x

160mn

x

unit

unit,

high x 238mn
high x

238mn

deep
deep

single
dual

unlt

unib

FI]IICTIONAL

The

relati-onship

diagram
The

They

opposite.

pass

transistors

are controlled by the emor anplifiens via the diode

DESCRIPTION

between

are mounted

the major

on

circuit

heatsinks

elements are showa in

at the rean of the instrunenL.

gate.

the

block

The

diode

current.

In

the

constant

load;

In the
eurrent
gate
current

The
incorporates the autorange circuitry and decinal

The
drive cincultry

allows

The
split low voltage

and mainlains constant

output

digibal

powen

gate provides

constant

output voltage, set by the

the voltage is

constant current

error arnplifier

is sensed across R27.

voltage is

current meter block

the set current limit

supply

voltage

for

provides
supply for the control circuitry

automatic

node

sensed across

mode,

overrides

output cunrenf

displayed

constant current

the

high voltage and

cnoss over of consbant voltage

the

error voltage amplifier

coarse

the output terminals.

or when the

the voltage error amplifier via the diode

the

by

also

to be displayed.

presef

independent of

digital

incorporates the autonange circuitny,

annunicator and

and fine controls,

power

and consfant

mainbains the

independent of

current

voltmeter. This block also

point

for the output

(V1

linit is

load resistance; the

drive.

control

).

neached, the

logic which

(V2)

and

a

COARSE

VOLTAGE
ERROR

IFIER

FINE

RENCE

CURRENT

VOLT

METER

LIMIT

CURRENT

ERROR
AMPLIFIER
AND
REFERENCE

+V

SENSE

-V

SENSE

+I

SENSE SENSE

-I

-u2-€l

_V

SENSE

OUTPUT

SWITCH

SENSE

o+l

I

OUTPUT

TERMINALS

--€r

SENSE

-v1

+

V'l

CURRENT
METER

Functional

+v2

-v2

+vl

OV

-v1

Block Diagrar

CIRCUIT

DESCRIPTIONS

-

Porer Supply

llains Operating

The operating voltage

of the instrument is

Yoltage

Should it be necessary to change
diagran below.

240V

Operation 220V

987654321 109876s4321

shown on the rear

the operating voltage,

foll-ow bhe

@eration

panel

labeI.

appropriate

120V Operation

110V Operation

7654321

a change

If

is made, bhe

operating

voltage

label and

fuse

shoul-d

be changed.

a change

If

The

correct

made, the operati.ng

is
fuse type is:

-

volEage

label

and

fuse

should

be changed.

1A 250V

2A 250V

2A 250V

HRC time-1ag,

HRC time-laq,

HRC

time-La9, 20rnm for

4A 250V HRC time-lag, 20mm for

WARNINC

I THIS

Any interruption of the
or disconnection of the

instrument

Power Supply

Plns

of f load

reservoir

Pins
off load

22 and 23

and

capacitor.

22 and

and

INSTRT'ITENT }TUST

protective

protective

dangerous. Intentional interruption is

-

DC Requlrementg

on

the mains transformer of the 30V

this

is recEif

off

The

23 on the mains

this

is rectified by the bridge rect.ifier
reservoir capacitors. The
26V.

20mm

20mm

for 220-240V)

for 110-L20V)

)

single

units

220-240V)

)

dual units

110-120V)

BE E.ARTHED

conductor inside

earEh terminal

outside

or

is likel,y to make

prohibited.

supplies

2A

i.ed

load

by the

voltage

bridge

across C1

rectif

j.er

Dl.

approximately

is

to

transformer of the 15V 4A supplies

C1

off load

voltage

BRI-;

across CL/C26

the instrument

the

provide

34Vrms

D4,' C1 is the

45V.

provide

l9Vrms

and C25 are the

is approximately

R14 discharges the

load connected; C5

reservoir capacitors supplies the

Diodes D5 to D8
wi.th

reservoir

capacitors C4

reservoir capacitors when the

R1

and

form a damping network.

pass

rectify

the

centre-tapped 20V

and C5

provide

Regulators ICl.0 and IC11 with diodes
supplies for the error amplif

The above circuitry

Paee

Q5
They

TraneistorE

and

Q7

are

are mounted on separate

parallel

in

on a

is

and current sharing
and R25. Driver transistor
Q5

and

Q7

make

up

a darlington emitter
heatsinks and R24, R25, R25
R25 are

on

the

power

supply

iers and di.gital met.eri.ng.

separate

pcb.

heatsinks and

shares one

Q5

on the

are

board. R25

no l-oad is connected.

Diode Gate

is

Q8
two error amplif

emitEer follower, the base of which is controlled by

an

via diodes D1,2 and

iers

unit is

transistors.

winding

approximately +/-13Y.

D22 and D23

provide

must

provided

is

the heat.sinks and

of

fol. l.ower

main

provides

stage.

board;

a discharge

D1,3.

turned

voltage

The

pins

on

18

regulated +/-5Y6

be H

by emi-tter

(hornetaxial)

resistors R24

altogether

R23 is on one of

On 15V

4A

units, R24 and

paEh

either

off with

across the

to

20 and

types.

C9

for

when

of

no

Q5,
the

the

Voltage

It

Error

should

means that the

Arplifier

noted that 0V is referred to the

be

voltage

on the driver and

IC3a

j.s

summing amplifier; when

a

pass

from the

error

ampJ.ifier

positive

is

output termj-nal; this

sma11,

sufticient to

transistors and overcome resistive losses.

VR2

is fully

clockwise

pin

2 is

at

turn

0V.

Feedback
summed wifh

achieved
oufput

used by

is from

with

swing

fhe

fhe negafive output terminal via R19

the current

VR2

which

of 1C3a

voltmeter

below

from

moves the

0V. D10 is

circuitry.

pin

to

VR'1. Fine confrol of the output voltage

psuedo ground

2.45Y

a

VR5

sets

the

maximum output

of IC3a.

voltage

reference which

where if

3

D11

limits

voltage.

is also

is

is

the

Gunenb
If

anplifier via Lhe diode
drop across R27

IC4b. D17
current and

the

(100nDA).

meter.
Output
SW2a

terminal ibself.
oubput
feedback loop from

SW2b switches
switch

cument
Xote: SW2 contacts

must
sane way round.
on
and

Bror

preset

the

output cunrent linit are equal.

Sritch

switches

on

is in the

meter

be

used.

SW2b conbacts

will have

lnPlifier

curnent

and bhis is compared

linits the

VR12

D25

and

trims the offseb of IC4b

is

the

to

to display the

normal

2.45V

a

+V

Thls is fo overcone

malntaln feedback when the oufput

going

the supply output

ofl

are

Note

This

will

limit is reached,

gate.

output

volfage

sense

complebely

posifion,

gold

also that if SW2 is disconnecfed

is because

have been

silver contacts

IC4b

Output current

to

swing of

connection between the

set

curent

plated

vapourised

IC4b below

This

reference which is also used by the current

SW2bts contacb

open

fo the outpuf tenminal. When

rAr

on

SW2a must

between

is

limi-t.

silven

as a result.

is sensed

the volLage on bhe

so

thaf

done at

is

connected

and

have
due to

overrides

0V. VR8 sets

fhe set current limit and

low

supply

is

switch

fo

the correct

gold

contacLs while

the high switching current

fhe voltage

measuring

by

wipen

maximum output

output cunrent

output

neslstance with

off.

positions.

0V which signals

it nust be rewired

and

D15

replacemenf

the

of VR3 by

the sense

prevents

the oufput

the

error

volt

levels

bhe

fhe

the

type

fhe

gold

Voltneter
ICl

is

a standard

complete

approximately
oscilloscope

C11

the auto zero

are

C15
R16

ranges
switching fhe meten reference.
the output
switching

approxinately
ICl5ts

analogue
ranges. They
when in-phase with
trins

Curent lleter
IC2 is the

fron the output
signals
R27

to

with

input

and

R17 attenuate

on

output,

switches

the voltmeter on the

to

measure

display drivers,

40kHz

probe

capacitor.

filter

the

30V

is

below

point

ICTa and b. With

is adjusted by VR4; R5

+/-0.5Y

providing

in IC8 selecting the two

also select the decimal

same type as fhat

switch

output current.

digib

3.5
which, if necessary, can

pin

on

componenLs.

2A

'l

bhe back-plane signal,

J8.

the output voJ-tage to suit

supplies

and low when the

9V

hysteresis

of

complementary conLrol

low

drives

panel

R56 and C12

C13

range

used
Q10

the

meter

R57 and C14

is

between the

The outpuf of the

in

and IC5b which

output switch

reference

the

provides

the output

at

point

VR6

and

the volLmeter.

IC.

output voltage

This

define

the integrator

are

high and Iow

positive

refenences for the

via IC9. The

and on

trims

on,

is a dual

the clock

be

checked

capacitor and

IC1. The volfmeter

comparafon IC3b

is above

feedback whlch

terminals.

signals. These drive

decimal

when in

the high range.

The control

provides

ICTa

complemenLary

eonnects

slope A to D

frequency

using a

components

R58, R59 and

nanges by

is

high when

1

9V.

Q1

high

point

anfi-phase.

slgnal

the

neter

x10

auto-

IC3b

gives

inverts

and

is off

drive

of

and

The

the
low

VR7

rAl

to

With
currenb

The currenf
poinb
conparator IC4a

the current

hysberesis.

the output

tinib setfing.

meter

and IC4a

reading

switch

autonanges

selects

is high when

off, ICTb

the appropriate

above 1.9A.

is

the 15V

on

the

conneets

4A

current

R41

the meter

supplies; VR9

neter

reading is

provides

referenee. The output

positive

VR3

to

sets the change over

below

to display the

1.9A

and

feedback and sone

1ow

of

when

l{hen

turned on which
triangle

-V1
generabed

Level
Protectlon
D16

provide protection

current

supply whilst fhe

shifting

provi.des

limit

enables

in the display.

IC2

by

is

protection

is reached, IC4b

low

frequency

Note that the

ground

for the

provided

against

LCD

and is

R54

by

against

forward voltages.

takes controL via the diode

lead

between

and

r"everse

osci-llaton IC5c and d

ground

IC6

of
R63.

lead of IC5

is connected

4

and 6 volts wibh nespecb bo

voltages.

D9, D14,

gate;

which flashes

ig

connected to the

DGI, whlch

bo

Q2, 03

a9

+V1.

and

is

the

is

a4

CILIBRATION

Equipnent

4.5

Oieit

voltage and current.

2l

30V
Tunn

must

Connecf

Adjust VR6
Reduce

voltmeters read the same.
Set the

between

Conneet

2.OgA.

Reduce

VR10

Required

nultimeter

Supplies

the 3 front

fitted between

be

a voltmefer to the output

so bhaL

the

outpub voltage

output

18.4V

an

the current limif

so bhat both curnent

to

and

anmeten across

with 10Anp range

panel

19V
'19.6V.

controls

the

both voltmeters

and adjust

and

better

to maximun,

output and sense tenmi-naIs).

terminals and adjust

read the

to approximately 15V

VR4

so that

output berminals

the

read

give

fhe

confrol to

meters

output

same.

and

meter auto-ranges

the

and adjust VR8

approximately

sane.

than 0.1t

switch

VR5

for

adjust VR7

1.8A output,

aecunacy

(Shorting

on.

30.7V

so that both

give

to

both

on

bars

to

30.9V.

at a

and adjust

point

2,074 to

Set

fhe

output

linit
sef

sane.

15V 4A

Turn

must

Connect

Adjust VR7 so that
Connect an ammeter across the output

4.

Adjust VR11

Reduce
ammeters read the s€rme.

Set

nanges

control to

the output

Supplies

the 3 fronb

be fitted between

a

voltmeter to

1

5A.

the output current to approxinately

the

output

at a

switch

approximately 100nA on the

switch

panel

so that

current to

point

to off, short the output terminals

to on,

controls to naximum, oubput switch

the output

the output tenninals

both voltneters

bofh

between

and adjust

ammeters

1.9A

and

1.84A and 1.96A.

nead the same.

VR12

and sense

fhe

read

terminals

adjust

VR9

set the

and

internal

so that

ferminals).
and adjust VR5 for 15.3V to
saroe

and

1.5A and

so that the

meber. Note

the meter

on.

adjust Vn8

adjust

VR10 so thab

current meter auto-

sbill

(Shorting

give

to

the

reading,

reads

4.10A

current

the

bars

15.5V.

to

both

Set

the

linit
sef the
s€rme.

control to approximately

output

outpuL switch to

switch

bo off, short the

100mA

on, and

output

internal

the

on

adjust VR12 so

terminals and set

meter.

that the

Note the

neter still reads

the current

neading,

the

VR6

VR7

VR5

o

VR4

LOCATION

(VIEI{ED

PgA

OF

CALIBRATIOI

co{PolfENT

Fnolr

POINTS

SrOe)

o

VR 12

@

TECTINICAL SPECIFICATION

TS3O23S

page

See
LOGIC OUTPUT
Output Voltage

Output Current:
Output Swibch:

Output
Over-Voltage

Output Protection:

Load Regulation:
Li-ne Regulation:
Ripple and lfoise:
Meter T5rpe: 0.5rt

lleter

Heter Aecuracy:

Resolution:

for specifications

5

Range:

Terminals:

Protection:

Vollage: 1 OmV
Current: 10mA

Voltage:
CurrenL:

of the main outputs.

4

to 6

4

Amps minimuml
Isolates
be set
4mm terminals

Dual-speed

Volts and fypically

7
Clamped by the over-voltage
forward volfages over
forward current. Diode cJ-amped

volLages and up

<0.5% for
<0.5%
<20mV rms,

0.5% of reading

0.5ft of reading + 1

Vol-ts

current

the outpuN and

before connecting

on 19mm

circuit

50ft

for 10% line voltage

(50mV

digit

3.5

giving

to 3 Amps revense current,.

load change.

pk-pk.

LCD

+

1

lirnit
permi-fs

(.75n)

2usec above 7 Volts.

Volts and up to

7

for voltage

digit
digit

approxiamtely

outpuf

the load.

spacing.

fypically

protection

change.

or current.

5

voltage to

2Omsec

fon reverse

up to

circuif

Amps

I

Amps.

for

GE}{ERAL
Power Requirements

Input Voltage: Internally set for 11011201220 or 240

+/-

Botr

10'fr of voltage setfing.

RH.

Power Consumption:

Environmental Operating

Range:

Environnental Storage
Renge:
Size:

Ieight:

Inpub VolLage
300VA

4ooc, zo% Lo

to

5oc

-20oC
386rrn

'l

to 600 C.

wide x 160mm high x 238mm deep.

1.0kg

Range:

VAC

50/60H2.

HAINS
The

5V

See
sections.

To

diagram

OPERATING

TS3023

4A

section.

page

change

has

B

for

the

below.

VOLTAGE

transformers,

3

fuse

ratings

operating

and

voltage

z

for

the

operating

of

the

30v

5V

2A

voltage

4A

section,

sections

change

fo11ow

and

of

1 for

the

the

the

2A

30v

appropriaLe

110/120V

Operati_on

220/240V

Operati_on

CIRCUIT
Porer Supply

DESCRIPTION

-

DC

4A

5Y

Requirenents

With

This
T3 and T4

10V outpuL for
Sritching
The switching regulator

operating aL

Q1

enengy

is

C5
Regulafion is

adjusted

compared to the voltage on
to fhe switching

If
to

Shut
determined

turning

regulator

the
supply off
Frequency compensation
and

240V inpul, T1 and

gives

and

open.

provide

the voltage drop
the switching transisNor

down of fhe

power

R12.

approximately

provide

Regulator

25k[z.

form a

Q2

when

the

1s the reservoir capacitor.

CLl

additlonal smoothing.

VR1

by

R13

by

on the transistor connected to

off

supply being latched off. Recovery is achieved by

for sufficj-ent time for

15Vrms

ICZ.

PNP

switch is closed, and

provided

to

transistor to maintain regu1atlon.

regulator

and R14.

and the vollage on

T2
24V

darlington

by the

give

across

for t,he feedback 1s

on the

on C 1.

giving

is

confj.gured as a step down or

an ouLput range of 4V to 6V. This

the

the current sense resistor reaches

is

occurs

Q4

mains

20V on C2,

switch.

control

+

sense

terminafed

is turned off allowing C6 Lo charge

pin

C6

Lransforner

'Zener

L1

smoobhs the output by

supplies energy vj-a D10 when

provides

R3i

IC, IC1.

termlnal

limiting the output current.

if

the outpuf

pin

of IC6B fal1s further

5

to discharge

and

10 of IC'1.

provided

provide

diode D9

a minimum l-oad.

The

the duty

voltage falls

(approximately

by C10, C11

gives

reference voltage

Lurning

2OVrms

a regulated

buck

reference

cycle

200mV

up via R34

This

and results in

20

1oad.

on

regulator

storing

the swifch

L2 and

is varled

drive

the

by 100mV,

Lurns the

the mains
seconds).

is
is

Over Voltage Protection

is an

IC7

(typically

drive
protecflon

fypically

to SCR 1 is enabled after

IC and

OVP

2.6V). If the
functions for output voltages between 6.4V

20ms.

If

the output exceeds

compares

voltage

the voltage on

pln

delay

7V,

2

generated

SCRl is

on

a

pin

2

exceeds

fired

with an internal reference

fhe reference, Lhe output

by C3.

and

instantly

This

and takes

7V

via

mode

pin

of

5.

Metering

IC2 i-s a standard DVM

power
With the output

inverter IC4D, so

With the

the

VR3 calibrates the
reference so VR3
mode.

Opto-coupler

LCD
IC3 is turned off
oscillator

CALIBRATION
Equipment required:

Connect

on and adjust the

external
located on the display

supply.

switch off,

that the meter reads output volfage.

output

meter

drivers.

reads output

IC5B and IC5A which flashes the

a 4Al'lP load to the output terminals

ammeter. Adjust VR3 so that the

switch on,

meLer for current

must be adjusted

provides

IC3

When the

which turns the

3.5

voLtage control- as necessary

IC and is the same type

is

03

IC4B is Lurned off and

current by measuring the

l-evel

power

dieit multimefer with a

pcb.

shifting bebween

supply

off turning

measurement I it is also the meten

before VR2, which

goes

phofo-transistor

into

delta sign

as used in other sections

IC4A off and IC4B on

IC4A is tunned on, so fhat

voltage across R7.

calibrates the voltmeter

the conLrof circuitry and the

current

off,

10AMP range.

(

1R2 resistor), swilch

give

to

meters

limit,

enabling 1ow frequency

in lhe display.

approxiamtely 4 AI"{PS on

read

the

LED inside

the

fhe output

same. VR3

of the

via

is

Remove the 4A load and connect a voltmefer

the exfernal­reads the same. Switch the output on

meter. VR2 is located on the

SERVICING IOTES

IC1 nust
parfs.
fo disable the

C4

mefer, switch the outpuf off

pcb

be a

UnitnoderA'Parf.

and

are low ESR types. A temporary

C5

shut down and ease trouble shoofing.

and off to check

which is fastened to

Q1,

to the output.

and adjust VR2 so that

D10 and

SCRl musf be the specified

short

Note the

the reading on each

the rear

may

be

reading

the meter

pane1.

put

across C6

on

PARTS I,TST

PCB AEs€mbly 15v

4A 44115-0060

Reeigtore

Ref DeecrJ-ptJ.ou Part No

R1 47RJ W25 CF 23L85-04'7
R2 10KJ
R3 1.00KJ

W25 CF 23185-3100 R56 100KJ
W25 CF 23L85-4L00 R57 118KF

0

R4 22KJ W25 CF 23L85-3220 R58 100KJ
R5 Not used R59 100KJ
R5 Zero ohm link 23185-0000 R50 100KJ

Ref Descrlptlon

Not used

R55

w25
W25
W25 CF
w25
W25

CF

MF

CF

cF 23185-4100
R7 Not used R51 100KJ W25 CF
R8 Not used R52 22KJ W25 CF
R9 20K0F W25 MF 23202-3200
R10
R11 550RJ
R1-2
R13
R14 6K8J
R15 10KJ W25 CF

750RF W25

w25 cF
w25 CF

2'7KJ

7K50F w25

w50

MF 23202-1750

23185-1550 VR4 Not used
23L85-327

0 VR5

MF 23202-2'750 VR6 Not used

cF 231'79-2580 VR7 220R Cermet

23185-3100 VR8 1K0 Cermet
R15 10K0F W25 MF 23202-3100 VR9
R17 1M00F w25 MF 23202-5100 VR10
R18

Not

used

VRLl 2K2 CermeL
R19 51K0F W25 MF 23202-3510 VR12
R20
R21 47RJ
R22 10KJ W25 CF

1K8J

W25 CF
W25

CF 23L85-04'7 0 Capacitore

23185-2180

23185-3100
R23 See Heatsink Assy 2 C1 4700U 63V
R24 0R3 3J 2w5
R25 0R33J 2w5
R26

2K2J
R27 0R10J 7w0 ww
R28

10KJ

R29 100KJ

ww
Ww

W50 CF

2327 4 - 0 010 C2 10U 3 5V

232'74-0010 C3 10U 35V

23L79-2220 C4 100U 50V

232'7L-0008 c5 100U 50V
W25 CF
W25

CF 23185-4100 C7

23185-3100 C5 100NM 250V

R30 2M7J Vt25 CF 23185-527 0 C8
R31 10KJ W25 cF
R32 1K00F

W25

MF 23202-2100 C10
R33 3K90F W25 MF
R34 1K00F

W25 MF
R35 9K10F W25 MF 23202-291,0
R35 555RF
R37

750RF W25
R38 20K0F
R39 11K5F

R40

7K50F W25

w25

MF 23202-!655 C14
MF 23202-1750 C15 330NK

W25

MF 23202-3200 C15 330NK

W25

MF 23202-21L5 C17
MF 23202-2750

23185-3100 C9 100U 53V

23202-2390 C11 330NK 63V
23202-21.00 C]-2 100NJ 100V

C13 330NK 63V

C18 330NK 63V
R41 2M"7J W25 MF 23202-5210 C19
R42 NoL used C20 100PG 53V
R43
R48 100KJ
R49 118KF

to

W25

CF 23185-4100 C22

W25

MF

50ppM

23202-4118 C23

C21. 330NK 53V

R50 100KJ W25 cF 23185-4100 C24
R51 100KJ
R52 1M00F
R53 1M00F
R54 100KJ

w25 cF
w25

MF 23202-5100 C26

W25

MF 23202-5100

23185-4100 C25 4?Pe 53V Cer

W25 CF 23185-4100

R53

180KJ W25

2K2 CermeL

220R
220R Cermet

100K CF

100NK 53V
100NK 63V

100NK 63V

100PG

100NJ 100V

330NK 63V

100NK 63V
100NK

4'7PG 53V Cer

4'700U 63V Elec

CF 231,85-4180

Cermet

Elec 23555-021,1

EIec 2355'7
Elec 23557-0541
Elec 23551
Elec 23557

p/E
p/E
p/E

Elec 23551-0249
p/E

p/E
p/E
p/E

63V

Cer
p/E

63V

p/E

53V

p/E
p/E
p/E

Cer
P/E 23620-0227

p/E
p/E

53V

Part No

23185-41,00

23202-4118
23185-4100
23185-4100

23185-4100

23L85-3220

23319-2220

233'19-1220
233'79-21,00
233'19-L220
23379-1220
233'79-2220
23377

-4100

-0

54'7

-0510

-0510

23621-0312

23620-0246
23520-0246

23620-0246

23520-022'7
2362A-020'7
23520-022'7
23421-0322
23520-0221
23520-0227
23620-0201
23620-022'7
23520-0227
2342'7

-0322

23620-0246
23520-0246

2342't-0329
23421-0329
23556-0211

SemiconductorE

Ref DescrJ,ption

D1

Not used

D2

Not used

D3

Not used

D4

Not used
D5
D5
D7
D8
D9
D10
D11
DL2

D13

D14

D15
Dl5*
D17
D23
D24
D25

*DL6

1N4002
1N4002
1N4002
1N4002

Not used

2N404
l_N4148
1N4148
1N4148
1N4002
1N4002
1N5401

to

1N4148
1N4002

2N404

i-s wired across

and Black output termi-nals.

the

Part No

25115-0901
25rt5-0907
25tL5-0907
25115-0907

2'7 t6L-01.20

2502L-0901

2502I-090I
2502t-090r
25LL5-0907
251L5-0907

25rr7-0020

2502t-0901
251L5-090'7
2'7 L5t - 012 0

Red

Deecription

Ref

rc1 7105RCPL

7105RCPL

rc2
IC3 TLOT2CP

TLOT2CP

IC4
rc5 40118E
rc5 407088
rc1 405588
rc8 40 55BE
rc9 407 0BE

?8L0sAcP

rct_0

79L05ACP

rc11

LcD 3.5 Digit

Otber

Deecri.ption

Zero Ohm Resi.stors

(PCB

PCB

Parte oD

Links)

LCD

PCB

44

Part

No

2'1L53-0003
27L53-0003

z / Ivo-ubub

27105-0505
21

226-OtLj
27 226-07
27 226- 0
27 225-0550

^l^^a Aa^^

ztzzo-vtuv

27

L60-0oLL
27 t60-00t2

(2)

26]-00-0070

Aeey 15V

Part No

off 23 185-0000

35515-1030

00

650

Q1
Q2
Q3
Q4

Q5
Q5
Q'7
Q8
Q9
Ql0

Z"rX2rA
ZTX239/8C549
ZTX239
ZTX239
See

See Heatsink
See
ZTX239
ZTX2!A
ZTX239

/8C549
/8C549

Heatsink Assy

Heatsink

/8C549

/8C549

Assy
Assy

2534L-021.4
2s380

-0229

25380 - 0229
25380

2
2
L

25380

-0229

-0229

253 4t-0214

-0229

25380

PCB Assembly

Regletorg

30v 2A

44115-0050

Ref

R1 47RJ
R2
R3
R4
R5 22MJ
R5
R7 11K5F
R8
R9
R1O
R11
R12 56KJ
R13
R14 5K8J
R15
R15 10K0F
R17 1MOOF
R18 470KF
R19
R20 1K8J
R21 47RJ
R22
R23

R24
R25
R26 2K2J
R27

R28

R29 1OOKJ

R3O 2M7J
R31 10KJ
R32 1KOOF
R33
R34
R35 Not
R35 Not used
R37
R38
R39 Not used
R40 Not used
R41
R42 Not used
R43 to
R48 100KJ
R49
R50
R51
R52 1M00F
R53 1MOOF
R54 100KJ
R55 Not
R55 100KJ
R57 118KF
R58 100KJ
R59 100KJ

Deecrlption

W25
W25 CF

10KJ

100KJ W25 CF

W25

22KJ

W25 CF

58KOF W25 MF

W25 MF
7K5OF W25 MF
2OKOF W25 MF
?5ORF

550RJ W25 CF

7K50F W25 MF

1OOKF

See

0R58J
0R58J

0R10J 7W0

9K10F W25 MF

75ORF W25 MF 5OPPM
2OKOF

NoL used

118KF
100KJ
100KJ

W25 MF

w25 CF

W50 CF

W25

1OKJ

W25 MF

W25

W25 MF

W25 MF

W25 CF

W25 CF

W25 CF

10KJ

Heatsink Assy 2

2W5

2W5

W50 CF

W25 CF

1OKJ

W25

W25 CF

W25 CF
W25 MF 5OPPM

W25 CF

LKSJ

used

W25 MF 5OPPM

W25 CF
W25 MF
W25 CF
W25 CF
W25 MF
W25 MF
W25

used

W25 CP
W25 MF
W25 CF
W25

CF

CF

CF

MF

WW
WW

WW

CF

CF

CF

5OPPM

Part

No

23L85-047 0
23185-3100
23r85-4100
23L85-3220
2322L-0030
23202-3580
23202-3115
23202-27 50
23202-3200
23202-L7 50
23r.85-L550
23185-3560
23202-27 50
23r'7

-2680

9
23t85-3100
23202-3L00
23202-5100
23202- 44'7 Q
23202-4100
23185-2r80
23L85-047 0

23185-3100

23284-00t0
23284-00r0

-2220

23).'7 9
232'71-0008

2318s-3100
23185-4100

23r85-521

0
23185-3100
23202-2100
23202-2970
23I85-2180

23202-1750

23202-3200

23185-4100
23202-4118
23185-4100
23185-4100
23202-5100
23202-51_00
23185-4100

23185-4100
23202-4118
23185-4100
23185-4100

Descrlption

Ref

R60
R51

100KJ W25 CF
100KJ

R62 22KJ

180KJ W25 CF

R53

VR4 1OOK CF
VR5 2K2 Cermet
VR5 2K2

VR7 220R Cermet

VRg 2K2 Cermet

VR9 Not used

VR10 220R Cermet
VR11 Not used

VR12 lOOK CF

Capacitore

cl­c2
c3
c4
c5
c5 100NM 250V
c7 100NK 53V
C8 1OONK 53V
c9 100u 53v
c10 100NK 53V
c11
cI2 100NJ

c13 33oNK 53V

c14 100PG 63V
c15 33ONK 53V
c15 33ONK 53V
CL1 1OONJ lOOV
c18

c19 33oNK 63V

c20 100PG 63V

c2L
c22 10ONK 63v
c23
c24

c25 47PG 53V

4700u

330NK

330NK 53V

33oNK 63V

10oNK

47PG

W25 CF
W25 CF

Cermet

53v
10u
10u

100u 50v
100u 50v

35v

35V

63V

100V

63V

63V

El ec
E1

ec
E Iec
E1

ec
Elec
P/E

D/tr

Elec

P/E
P/E

P/E

Cer

P/E

P/E

P/E

Cer

P/tr

Cer

Cer

Part

No

23185-4L00

185-4L00

23
23L85-3220
23185-4180

23377-4100
2331 9
2337
233'7
233'7 9

2337

233'7'7

23555-O2r'7
23557
23557
23551-0510
2355'7 - 0 510
2362r-031.2

z56ZV-VZq6

23620

2355'7
23520
23620

23620
23620
2342'7
23 620
23
23 620

23620
23 620
23427
23 620
23 620
23 620 - 0245
23427
2342'7

9
9

9

520

-2220

-2220

-L220

-2220

-L220

-

410 0

-0547

-054'7

-0245

-0249

-0246

-0221

-0207

-0227

-0322

-

0221

-0221

-

0201

-022'7

-

022'7

-0322

-0227

-

0246

-0329

-0329

Semlconductors

other Parta

on

PCB

Aesy 30V

Ref Deecription

D1
D2
D3
D4 1N5401
D5 1N4002
D5
D7 1N4002
D8 1N4002
D9 1N4148
D10 2N404
D11
Dtz
D13 1N4148
D14 1N4002
D15 1N4002
D15*
D17
D23 1N4148
D24
D25 2N404

Q1
Q2
Q3
Q4
Q5
Q5
Q'7
Q8
Q9
Q10

1N5401
1N5401
1N5401

1N4002

1N4148
1N4148

1N5401

to

1N4002

*D1,5

and

IC1 7 1.0
rc2 7 105RCPL
IC3 TLO'] 2CP
IC4 TLOT2CP
rc5 40 11BE
IC5 407OBE
IC?
rc8 4055BE
IC9
ICl.O
IC11

wired across the Red

is
Black output terminals.

ZTX2I4
ZTX239
ZTX239
ZTX239/8C549
See
See
See
ZTX239
ZTX2I4
ZTX239

4O55BE

407OBE
78LO5ACP
79LO5ACP

/8C549
/8C549

Heatsink
Heatsink
Heatsink

/8C549

/8C549

6RCPL

Assy
Assy
Assy

Part No

251.]-1-0020
25t1.7-0020

z5Lr/-vuzv

2511.1-0020
25tI5-0901
25tL5-0907
25t15-090'7
25115-090?
2502t-0901_
27151,-01.20
2502r-090t
2502t-090t
2502!-090L
25115-0907
25115-0907
25L17-0020

2502L-090t
25715-0901
21L51,-01.20

2534L-0214
25380
25380
25380

2
.)

-0229

-0229

-0229

1

25380
2534I-0214
25380

2'7L53-0003
21L53-0003
2"7L06-0606
27L05-0605
2'7 225- 01L0
2'7 226-0'7
27 226
2'7 226
27226-0'7 0o
27160-0011
27150-00L2

-0229

-0229

-0

550

-0

560

00

Deecriptsion

Ohm Resistors

Zero

(PCB

Links)

PCB

Mounted Heatelak Aseye

Rear

gerLee

for all

Note:

PSUs
The
use the same
wired

Heateink

consistinq

Deecription

Heatsink

2N30ssH

Translstor
Mica

Screw M3
Washer M3 2

Solder
Nut

Heatelnk Aseenbly 2

consist

Deecription

Heatsink TVne 2

2N3055H

(Q5,
Transistor Mount 2
Mica

Screw M3 x 12mml 4 off 20234-0025

Washer M3 2 off 20030-0253

Solder tag M3 2

Nut M3 4

47RJ

(*)

See manufacturing

page

S

30V Single, Dual

use identical Heatsink

15V 4A PSU Heatsink

differentlv.

Aeeenbly 1

of:

type 1

(07

Mount

Washer

x 12mml- 2

tag M3

M3 2

j.ng

of :

Q5)

Washer 2 off 205L3-0010

W25 CF

25.

44 off 23185-0000

PSUg

components but are

)

2 off 25385-0010

(R23

)

changes on

Part No

3 5515-0950

& Trj-ple

Assys

Part, No
205'70-0090

25385-0010
20611-0007

205r3-0010
off 20234-0025
off

20030-0253

2245r-0203
off 20210-0101

Parts No

20670-0100

off 20611-0007

off

22451-0203
off 20210-01-01-

231-85-04't 0

Assys,

(*)

(*)

LcD 3.5

Disit LCD

(2)

25100-0070

Aeeenbly

PCB
conel.eting

Loglc Supply

of :

44115-0070

ReeleEore

Ref Deecription

RL 1K0J W25 CF
R2
R3 1OROF
R4

R5 82ORF W5O MF
R5 82ORF W5O MF
R7

R8 1K59F W25 MF
R9 IK].OF W25 MF
R10
R11 2K2J W25 C?
R12 52KJ W25 CF
R13 3K90F
R14 200KJ W25 CF
R15 200RF
R15 2OORF
R17 3K5OF
R18
R19 35K0F
R20 3K90F W25 MF
R21 100KJ
R22 1L8KF
R23
R24 100KJ
R25
R25 1M0J
R2'7 1M0J

R28 1MOJ
R29 1MOF
R3O
R31 2OORF
R32 1OORJ
R33
R34 36K0F
R35 100RJ
R35 35K0F
R37 5K81F
R38 3K90F
R39

Vt(I POC IUK IJlN

VRz PS/H 100R
VR3 PS/H 2K2

Capacitore

Ref

C]- 3300U 40V
C2 100U
C3 1U0
C4 1000U

1OROF

100RJ

ORO33J 4W MR

1K59F

3K90F W25 MF

100KJ

1MOF

4?RJ

1K0J

Description

W5O MF
W5O

MF

W25 CF

W25 MF

W25

MF

W25

MF

W25

MF

W25

MF

W25 MF

W25 CF
W25 MF
W25

CF

W25 CF

1M0J W25 CF

W25 CF
W25 CF
W25 CF
W25

MF

W25

MF
W25 MF
W25 CF
W25

CF

W25 MF

W25 CF
W25 MF
W25 MF
W25 MF
W25 CF

Cermet

Cermet

Elec

25V Elec

Elec

53V
10V Low ESR

No

Part
23285-2L00

23226-0)-00
23205-0t00
23185-1100
23205-t820

z5zuo- rdzv

2327 L-0009

zJzvz-zLo>

23202-211,0
23202-2]-69
23L85-2220
23L87

-3520

23202-2390
23187

-4200

23202-1200
23202-t200
23202-2350
23202-2390
23202-3360
23202-2390
2318s-4100
23202-4118
23185-4100
23185-4100
23185-5100
23185-5100
23185-5100
23185-5100
23202-s100
23202-5100
23202-1200
23185-1100
23L85-04'7 0
23202-3350

23185-1100

23202-33

60
23202-268t
23202-2390

23L85-2L00

23347-0130
23319-1100
2331 9

Part No

23556-02L8
23551-0550
23557-0509
23557-0810

-2220

Capacitore

Ref Deecription

C5 1000U
C5
c7

c8 100NK
c9
c10 4N7K
C11 100PG
c12 10oNK
c1.3
c14
c15
c15
cl,7 33oNK 63V P/E
c18
c19 100NK 63V P/E
c20 100NK 63V P/E

*C21

C22 1N0Z 500V Cer
c23 100NK
C24 10NZ

*Note

output terminal-s

Semlconductorg

Ref

D1 1N54 0 1
D2
D3 1N540
D4
D5
D5 1N4

D7
D8 1N4
D9 10V Zener

*D1,0

D11 1N4 0 02
Dr2 1N4002
D13 1N4148
DI4 1N4148
D15 1N4148
D15

"Q1
*Q2

Q3
Q4

*SCR

*Note

100U 25V

100NK 53V P/E

10NJ 400V P/E

33oNK 53V P/E
330NK 53V P/E
100PG
330NK 53V P/E

330NK 63V P/E

10ONS

C21 is fitted

Deacriptlon

1N5401

1N54 0 1
1N4002

1N4002

10TQ030

6V2 Zener

BDT92
8D234
ZTX214
Z"rX239

8T151-5OOR

D10,

the

(continued)

10V Low

53V P/E

100V P/E

53V Cer
53V

53V Cer

63V Cer

53V
63V Cer

1

0 02

0 02

/8C549

Q1, Q2,

Heatsrnk

EIec

P/E

P/E

SCR
Assy

Part No

ESR

across

are fitted

23551-0810
2355'l-0550
23 520
23520
2352L-03L0

23 520
23427
23620
23520
23 620
23427

z36ZU-VZZ /

23520
23 620 - 0227
23620
23620
23438-000'7
23424-0445
23 620
23427-0325

the

Part No

25rr1-0020
25rr'7-0020
25II1-0020
25LL7-0020
25Lt5-0907
25115-0907
25L75-0907
25rr5-090'7
251,30
25775-07 t0
25]-]-5-090'7
251,r5
2502L-0901
2502r-0901
2502I-0901
25r)0

25334-0072
25334-0009
253 4r-0214

25380

25210-0010

on PCB

-0245

-0246

-0245

-0322

-0246

-0227

-0227

-0322

-022'7

-0246

-0246

-0245

-0239

-09

0'7

-0220

-0229

to

Semlconductors

(contlnued)

Ref

IC1

rc2
rc3

aaA

1Lf
LL o

IC7

LCD

Other

Deecrlption

UC3 52 4AN
7 1 0 5RCPL
cMv17
40558
40708
LM3

MC3 42

3 .5 Digit

Part,g

Deecrlptlon

-3

58

3 Pl_

LCD

on Loglc

Part No

2'7160-0310
2'7153-0003
2'7001-0020
27 225-0 560
27225-0'7
27 ],05-05t3
21 L02-00t0

26LOO-00?0

Supply

Part No

00

PCB ABsy

Heatsink 3I5I2-03 10
Washer
Bush,
Screw
Washer
Washer
Stud

(

for heatsink) 2

Screw

(

f or
Nut M4
15 Pin
14 Pin

8
Zero ohm
Fuse Clj.ps

(SIL-PAD)

TO220

M3 x 10mmL

M3
M3 s/proof

4 off
3 off
4 off
4 off
5 off

205L3-0005
20511-0003
20234-00L1
20030-0263

-0301

2003'7

M3 x SmmL

off

20205-0500

x 30mml

M4

Ll-

)

nylon

Socket

IC
IC Socket 2

cheese

(for

L1) 20210-0201

head nylon

off

20224-02L0

225'7 4-0120
22574-0119

Pin IC Socket 2 off 22574-0118

resistor

14

off 23185-0000

2 off 22312-0240
Fuse 5 Amp A/S Fs2 22315-0231
Inductor 20OuH 4A L1 22154-0010
rnducror 2.2uH L2 22042-0100
Inductor 7 T\-rrns L3 22152 - 0 010
rnducror 5.8uH L4 22042-0110
PCB 35515-1040

Connector Aeey 16

consisting of:

Cable

Way IDC Flat

15

7.5

Connector transition

Vilay

Inter PCB

ins off 10148-0001

Way

15

2 of f 22515-004'7

Parts

Comnon to

all

PSUg

Parts Comlon

(continued)

Deecriptlon

Part

C1ip, capacitor for C1 20555-0520
Switch, rocker SW1 22219-0100
switch, rocker 5W2,3,4 222L9-0110
Fuseholder
Shroud for
Knob,

black 20551

Cap, black

fusehoLder

knob 20657

for

22300-O2LO

Pot, 1K0 li-n, VR1 23348-0060b
Pot,

1K0

Pot, 10K 1og,

lin,

VR2
VR3

23348-0030
Terminal, Red 225'1I-05?0
Terminal, Black 2257).-0680
Terminal, Green 225'71-0690 Guarantee
Shorting bar Tnstruction

(output

terminaLs) 35331-0080

BezeL for displays 3l'7LI-0020

No Deecriptlon Part No

Bush, strain rel-ref
(*)
(*)
(*)

22458-000t

-0002

-0009

23348-0020

(for

mains

cable) 22448-0220

Mains cabLe cut from 10175-0110

Label,

wiring

i-nstructions 37541-0490

Mains

Euro

Mains

plug

USA

plug

lead

lead

wi-th

with

Handle 292L1-0110

Serial

label 37522-0150

No

End caps for carton 20554-01-90

card

Book

Additional Partg

Corunon to 15V

2249L-0200

22491.-02L0

48581-0230
48511-0050

Solder tag 4BA and 30V Single PSUe

(output

Washer 4BA shakeproof Deecrlption Part

(ouEput

Diode 1N5401

(output

Bracket,switch support

for SW1,2,3

Washer M3

(Heatsink
rear
Grommet

(for

terminals

|

termj-nals) 20031

(D15;

terminals) 25L1,'7-0020 Case,

to Warning

panel

etc

3109A

)

black

22451-0200

-0241
Case,

Warning

31512-0270 Warning

Warning

upper 33535-0630

lower

33535-0700
Label - 240v 37559-0100
Label - 220V 31559
Label - 720v 37559-0120
Label - 110V 37559-0130

20030-0253 Carton 38114-01-30

heatsink wiring) 22443-0002 Additional Parte Coruron to

No

-0110

15V
Foot 20662-0510 and 30V Single & Dual PSUe
SoLder tag, s/prf 6BA

(Earth

earth

wire
tag)

to

2003'7-0400

Deecription

Part

No

Screw No 5 x 3/8"1 Self tap Cover, heatsink 31512-0130

(C1,

Case and

securingl

Screw No 5 x I/2"I

(Transformer

Feet

Self

securing)

20052-0700

tap Additional Partse comlon to

20652-0710

Dual and Triple PSUg

30V

Captive Nut

(Transformer,

CI, Deecription Part

No

and Case securing) 20213-0010

to

Nylon

panel

and Heatsink

20224-0200

20234-0017

Bracket, handle/case 33111-0180
Warning
Warning
Warning
Warning

label - 240V 37559-0140
label - 220V 3'7559-0150
label - I20V

37559-0160

label - 110V 3'7559-0170

Screw M3 x SmmL

(PCB

to

front
cover to spacers
Screw M5 x 5mml,

(Earth

lower

Lag

case)
Cable tie for wirr-ng 20653-0204 AddiElonal Parts comnon to 30V
Spacer M3 x 30mml

studded

Hex

(Heatsink

mounting) 2065I-0235

Sing1e,

Dual & TripJ.e PSUg

DeEcription Part

No

spacer M3 x 30mm

round

(Heatsink

Screw M3 x 40mml

(Heatsi-nk (cover)

clearance Transformer 30V 22715-0070

mounting) 20661-0243

(*)

See manufacturing changes on

)

20234-A038

page

26.

(*)

(*)

Additional Partse unigue to 15V PSU

Fueee

DeecripEion Part No

Facepl-ate 33331-1320

Ceramic

beads

for R24,25 22482-0010
Bridge
Push-on

Transformer

Rectifier BR1 252L1-0300

Tags for BR1 22454-004L and

221L5-0090

Additional Partg unique to 30V

single PSU

Descrigtlon

Faceplate

Additional

Parte unique to 30V

ParE No

33331-1310

Dual PsU

Deecriptiou

F: e an l : l- o
C: <a l lnnar

qo

Ca

I ar^ror

Carton

Part. No

33331-1110
33535-0650
33536-0710
38114-0r40

(*)

(*)

(*)

(*)

Description

Anti surge

1A

(for

220/240V Single

Anti

2A

(for

1I0/720V Single

220/240V Dual &

4A Antj. surge

(for

110/120V Dual &

(*)

See manufacturing

page

26.

HRC

surge HRC

HRC

Part No

PSUs) 22315-9501,

PSUs

Trj-ple PSUs)

2231,5-9502

Triple

PSUs)

22315-9503

changres on

Additional Parts

unigue to Triple

Description

Faceplate
Case,
Case,
Cover,
Cover,
Screw

(for

Screw

(for

Bracket, switch

(for

Res

(R101

Trimnof 1

upper
Iower 33535-0730

Heatsinks
HeaLsi-nks 3151.2-0310

M4 x

6mml,

case brackets)

M3 x SmmL

case brackets)

support

SW4)

84K5F

W25

CF

'

0K

Ccrmet

(vR101)

Snar-erq Hev M? v

(Logic

Supply

Transformer,

Aftachmenf nArfs

Screw

Washer

M4 x

M4

5mml, 20234-0028

Washers/proof

Nut

M4 20210-0102

30mml

to

PCB

Logrc

Case)

Supply

for transformer

M4 20031-0304

Part No

33331-1390

33535-0720

3I5I2-0230

20234-0034

20234-0012

3L512-0290

23202-3845

23319-3100

2066r-0241

22II5-0100

20030-0266

PSU

(")

(*)
(*)

MANI'FACTURTNG

CIIANEES

From mid-91 new

switches

introduced, necessitating
covers.
changed
are noL

qntraq

Fq

TTh i f < rr< i nn Fha nar.r h:rl-<

terminals

At

the

same

time

to accommodate

interchangable; the

are mounted on a

Description

Heatsink type

lloa|-qink frrno ?

Spacer
Spacer
Bushes
Switch, rocker SW1
Switch,
Fuseholder

Qinala aha<<ic

Single heatsink cover
Faceplate TS15415

Faceplate TS302LS

FacepJ-ate

Dual- chassis
Faceplate

m-;*1^ ^L-^^i ^

r! rPre !tla>>I>

Trinle heal-sink

(HeaLsinks)
(Heacsinks)
(Heatsinks)

rocker 5W2,3,4

1

TS3022S

TS3023S

cover

(both

AC mains and DC

changes to

alI

chassis,

output) and fuseholder

the heatsink mounting holes in

a standard

earlier switches

can be easily

small

pre-drilled

pcb.

Original

identified

The new

ParE

heatsink. Early and

and fuseholders are availabLe

part

2Q5'70-0090
205'70-0100
2066L-0236
20667-0243

22219-0100
22219-0110r
22300-0210
33535-0700
31,5]-2-0130
33331-1320
33331-1310
33331-1110
3 3 53

5-07 10
33331-1390
33536-0730
31512-0230

faceplate

the

because the
numbers

are

N€w Part

20670-9001
206'70-9001
2066r-0242
20557-9302
206]-L-9305
22219-0050

-22219-0080
22300-9301

33535-0900
375]-2-03'7
33331-1740
33331-1730
33331-1390
33535-0910
33331-1760
33535-0920
31572-0340

were
and heatsrnk
chassis were

parts

new

DC output

as

follows:

I

-r

0

Additional

(terminals)

PCB
Screw

4BA
Spacer 4BA
Washer

(green

Parte

(Per

(terminals)

(term:-naIs

eart h t

each output)

)

j.na

erm

I

)

35515-1210
20134-9005
20661_-Q257
2257r-0591