Sanyo MLS-3781 - Page 35

11.Citcuit Diagram
CD
I
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:1
=
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t~
®
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I
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22OV123OV
·
"
"
•
·
--
·
,
®
--
I
-
I
I
EMCPCB
Current fuaa x 2
'5OV
SA
I
I AC power IlUpply ~
datecIIon circuit
;M
'!'i'
Voltage drop
detection cirtlUit
Sterilization heater
1900W : 3751 L(12OV)
2000W : 3751,3751 L(230V)
"~ 400OW:3781,3781L
nnnn limiter
_ uuuu ~o--
=
@ ®
-*-iY
-
-
Heater detection
Main relay
ITriKk~""'" I
circuit
control circuit circuli
MlcrocompulBr abno
CD Power cord
@Triac
® Tanninal block
0)
Power transfonner
® Power switch
®
Protective grounding
® Power relay
@Coil
----j Ud switch
Fan
I
Display·Operation
--1 Ud_h I
,-
PCB
'-""<ow
TH1 TH3
Fan control I
circuit
I
5 kef' I I Lateral temp. I I Low temp.
pea sensor sensor
IComm~onll
Sound
II T __ II To~"""~
Circuit
circuit
d'cult circuit
"'''''' ...
12V
DCpower E'! 5V
detection circuit
all Hard limiter h
I I I
7
·
"
"
•
·
·
,
>A
IlUpply circuli -'!.5V
I
L~ OV
CommutaUon
circuit
.-
- ~ I, S<>Ieoo;d III Sol~'" wlw
.-
.-
=1 Co~=on control circuit control circuit
-
DC88V 1
8:23OV
4 :22OV
3 :200V
2: OV
6: 120V
3: 110V
2: OV
I I
I SolenoKj I I ~:st I
I
Microcomputer & Control Section
I I I
1 Commutation
circuit
1 ComrTMJtation
circuit
Commutation 1
circuit
Lid detection I I PrMeure dIlecIion 11 Tamp. dllectlon
circuit circuit circuit
Control PCB
l '-""< "'all, I
delecllon SY!Ich
I
~ '-""< "all, I I P .... ,.. I I Objed tomp_
Printer
del8clion swim sensor sensor
0 n
Option
ptio
TH'
tenninal