MITSUBISHI 2003 - B.d.t.

MITSUBISHI
HOME REFRIGERATORS
SERVICE MANUAL
Models MR-508M-W-A MR-560M-W-A
A…...Australia
MR-508M-ST-A
MR-508ML-W-A
MR-508ML-ST-A
MR-560M-ST-A
MR-560ML-W-A
MR-560ML-ST-A
CONTENTS
2003
NO.SM-RE-0302
1. SPECIFICATIONS......................................................
2. OUTLINES AND DIMENSIONS...................................
3. WIRING DIAGRAM....................................................
4. REFRIGERANT CIRCUIT...........................................
5. NAMES OF THE PARTS............................................
6. DISASSEMBLY INSTRUCTIONS
7. TROUBLE SHOOTING...............................................
7.1 TROUBLE CRITERION OF MAIN PARTS.......
7.2 HOW TO CHECK P.C.BOARDS......................
7.3 TEST POINT DIAGRAM OF
MAIN CONTROL BOARD...............................
8. PARTS LIST..............................................................
1
3
5
6
7
8
11
11
13
14
15

1 SPECIFICATION
1-1 SPECIFICATION
MR-508M/508ML
MR-560M/560ML
MR-508M/508ML MR-560M/560ML
Power supply
230/240V, 50Hz
Total capacity
L Gross(AS) 508 (F:178 R:330) Gross(AS) 560 (F:178 R:382)
Dimensions (HXWXD)
mm. 1654 x 750 x 749 1779 x 750 x 749
Cabinet Polyester resin coated steel
Food liner ABS resin
Cabinet Foamed cyclopenthane
Insulation Freezer door Foamed cyclopenthane
Refrigerator door Foamed cyclopenthane
Cooling system
Freezer
Refrigerator
Forced air convection
Forced air convection
Evaporator Fin and tube type
Condenser Concealed type
Defrost system Automatic (heater defrost)
Drain Automatic (drainage)
Temperature control system Automatic control
Refrigerator room light
240V, 15W (E12)
Accessories Ice tray 1pc. 1pc.
Ice box 1pc. 1pc.
Freezer pocket 2pcs. 2pcs.
Slide chilled case 1pc. 1pc.
Crystal shelf (F) 1pc. 1pc.
Ice conner tray 1pc. 1pc.
Crystal shelf (R)
1pc. 2pcs.
Slide shelf 1pc. 1pc.
Crystal shelf (RV) 1pc. 1pc.
Packing V 1pc. 1pc.
Free pocket (S) 1pc. 1pc.
Free pocket (L)
1pc. 2pcs.
Egg rack 2pcs. 2pcs.
Bottle pocket 2pcs. 2pcs.
Vegetable case 1pc. 1pc.
Drain pan 1pc. 1pc.
Bottle stopper 2pcs. 2pcs.
Weight
Unit
Shipping
kg
kg
83
92
87
97
- 1 -

1-2 ELECTRICAL PARTS SPECIFICATION
MR-508M,508ML
MR-560M,560ML
Model
220/240V, 50Hz
Rated input
Starting current
W
A
Running current A
Winding resistance (A.T.20 o C)
11Ω(Main) / 13.1Ω(Aux)
PTC thermistor PTH7M330MD2
Model 5TM232NHBYY
Ambient temperature o Time
C
Sec
25
16 Max
Current A 7.4
Running capacitor 4 μF, 400VAC
Capillary tube mm. ∅ 1.8 X ∅ 0.65 X 2350
Dehydrant Molecular sieve g 10
Refrigerant HFC. 134a g 135
Defrosting timer Control board
Defrost finish o MR-508M,508ML,560M,560ML
DG77C14RAW5
Compressor
139/141(220/240V,50Hz)
10/11(220/240V,50Hz)
0.66/0.65(220/240V,50Hz)
Motor protector
Defrosting control
C Thermistor 14+1.5
Heater
Fan motor
Temperature
control
Thermal fuse o C 73
Defrost heater 384Ω (220V, 150W)
Deodorizing function of defrost heater Equipped
Model UDVH15MA1H
Type Single phase
Number of poles 2p
Input W Below 10.2/12 (220/240V,50Hz)
Revolution r.p.m 2520/2580+200 (220/240V,50Hz)
Model
Dial position ON
Warmer o C -13.7
Normal o C -16.9
Freezer
-22.9
Colder o C -20.4 -27.5
- 2 -
OFF
-19
Refrigerator (MM 1-6165)
OPEN SHUT
-
1.0
2.0
-4.0 + 1.5
- -16

2 OUTLINES AND DIMENTIONS
MR-508M,508ML
- 3 -

MR-560M,560ML
- 4 -

3 WIRING DIAGRAM
MR-508M,508ML
MR-560M.560ML (SKELTON WIRING DIAGRAM)
(ACTUAL WIRING DIAGRAM)
- 5 -

4 RERIGERANT CIRCUIT
MR-508M,508ML
MR-560M.560ML
- 6 -

5 NAMES OF THE PARTS
MR-508M,508ML
Packing V
MR-560M,560ML
Packing V
- 7 -

6
MR-508M,508ML
MR-560M,560ML
DISASSEMBLY INSTRUCTIONS
Unplug the power cord before servicing.
OPERATING PROCEDURE PHOTOS
1.
(1) Remove the parts inside the freezer compartment
(Freezer compartment shelf Plastic ice tray, ice cube
storage box.)
Ice corner Ice corner tray
(2) Remove a rivet on left side, press both the ice corner
and Ice corner tray the up at the same time, and by
unhooking the catch at the lower right, pull them out
toward you. (See photo 1.)
(3) Separate the ice corner and the Ice corner tray by
unhooking the catch at the upper right of the ice corner.
Fan grille Cover F
(4) Remove 2 rivets in the upper part of the fan grille.
(See photo 2.)
(5) Slightly lean the fan grille toward you and remove the
catches of the cover F (one in the upper part and one
on the right side) to take out the cover F.(See photo 2.)
(6) Remove the binder and the bag, and disconnect the
connector for the lead wire to take out the fan grille.
(See photo 3.)
Bell mouth
(7) Unhook a total of 8 catches of the fan grille and the bell
mouth, and separate the fan grille and the bell mouth.
(See photo 4.)
Fan motor
Remove the 2 screws of the motor mounting board and
take out the fan motor. (See photo 4.)
Thermal fuse
Disconnect the connector and take out the thermal
fuse. (See photo 4.)
- 8 -
Photo 1
Photo 2
Photo 3
Photo 4
Catches
Rivet
Fan grille
Rivets
Fan grille
Connector
Screws
Catch
Ice corner
Catch
Catches
Bag
Fan motor
Lead wire
Thermal fuse
Bell mouth
Ice corner tray
Cover F
Catches

OPERATING PROCEDURE PHOTOS
Defrost heater
Raise and fix the evaporator with care not to bend the
pipe. Take out the deforst heater before taking out the
drip tray (See photo 5.)
CAUTION ON ASSEMBLY
Insert the fan into the fan motor shaft until it reaches
the base of the shaft, and then rotate the fan gently
with your fingers to check its operation.
Securely attach the defrost heater in the correct
direction, slacking the lead wire to prevent water from
entering the glass tube.
Attach the drip tray close up to the inside box.
Be sure to attach the thermal fuse to the correct
position.Securely attach the lead wire to the fixture.
2.
(1) Remove the parts inside the refrigerator compartment
(Slide chilled case, Refrigerator compartment shelf (R),
Refrigerator Crystal shelff (RV) , Packing V, Vegetable
case.
Control penel duct R
(2) Remove 2 rivets and 3 screws in the upper part of the
control panel and pull it out toward you.
(See photo 6.)
(3) Remove the thermo dial (Refrigerator compartment)
and unlock the catches of the control panel (6 catches)
to separate the control panel and the duct R.
(See photo 7.)
Damper
(4) Peel off the tape from the joint of the duct R to
take out the damper.
CAUTION ON ASSEMBLY
Be sure to use new sealing materials and tape for
assembly.
Securely apply the tape to the joint to prevent cool
air leakage.
Cut the sealing tape attached to the duct R in 30 mm.
width and apply it to the joint of the duct R.
Securely connect the connector to prevent poor
contact.
- 9 -
Photo 5
Photo 6
Thermo dial R
Room light Cover
Photo 7
Control panel
Control board
Defrost heater
Evaporator
DEF thermistor
Heater cover
Rivets Thermo dial F
Room light
Screws
Control panel
Duct R
Catches

3. Removing the compressor
(1) Slowly release gas from the charge pipe on the pressure side.
(2) Replace the compressor and the dryer at a time.
CAUTION ON ASSEMBLY
After replacing the compressor be sure to evacuate the refrigerating cycle and charge gas into the charge pipe.
After replacement check cooling operation and check the weld for gas leaking.
MR-508M,508ML,560M,560ML
(High pressure side)
OPERATING PROCEDURE
- 10 -

7
7-1 TROUBLE CRITERION OF MAIN PARTS
MR-508M,508ML
MR-560M,560ML
Components/
Part Name
Compressor Compressor in
Run capacitor
Motor
protector
TROUBLESHOOTING
Model DG77C14RAW5
Rated input W 139/141 (220/240 V, 50 Hz)
Starting current A 10/11 (220/240 V, 50 Hz)
Running current A 0.66/0.65 (220/240 V, 50 Hz)
Auxilialy
wiring
Connected
Point
Main
wiring
the machine
chamber at the
rear side of
the frame
In the control
panel of the
Measure the resistance with a tester. refrigerator
compartment
Compressor in
the machine
Model 5TM232NHBYY chamber at the
Open
Check Method and Criterion
Measure the resistance with a tester.(Ambient temperature:Room temperature 15 o C ~ 25 o C)
rear side of
the frame
PTC thermistor Compressor in
- 11 -
Normal
120 + 5 o C
Close 69 + 9 o C
Normal abnormal(faulty)
Opened (∞Ω ) Short-circuited(0Ω )
Normal abnormal(faulty)
Less then 1Ω Opened(∞Ω )
Abnormal
(faulty)
Main wiring 11 Ω (Approx.) Opened (∞ Ω )
or
short-circuited
Auxilliary wiring 13.1 Ω (Approx.)
(0Ω)
Rated input 400VAC
Parts Mounted
Position
PTH7M330MD2
Measure the resistance with a tester.
the machine
chamber at the
rear side of
(Ambient temperature:Room temperature 15 o C ~ 25 o 5
6
2
3
MODEL
3
2
C) the frame
6 5
Normal
33 Ω (Approx.)
Abnormal
Opened (∞Ω ) or short (0Ω)
As PTC thermistor has been heated while refrigerator is running be sure
to measure the resistance after the thermistor has got cool enough.

Components/
Part Name
Refrigerator
fan motor
Defrost heater
Thermistor
Resistance measured under
Measure the resistance with a tester.
(Ambient temperature:Room temperature 15 o C ~ 25 o C)
Fan grill of the
freezer compartment.
Rated input W 150
In the drip tray under
operation method
Power ON after defrosting
(14 + 1.5
the evaporator of the
freezer compartment
Measure the resistance with a tester.
(Ambient temperature:Room temperature)
o C or more)
the ambient temperature from Thermistor resistance Defrost thermistors
-50: to +50: (kW) against temperature radiator
1. 200" to 500k"
................Normal
30
of the freezer
compartment.
2. Out of the above range
Check Method and Criterion
Resistance
Normal
.................Abnormal F-thermistor, control
15
panel of the refrigerator
10
Thermistor Check Procedure compartment.
Thermistor resistance will vary
with the change of temperature. ( o -20 -10 0 10 20 30 C)
Take the temperature around the thermistor, Temperature
and then measure resistance using a tester.
Model
384 Ω (Approx.)
25
20
5
Normal
Opened(∞Ω )
UDVH15MA1H
Abnormal
Abnormal (faulty)
Opened(∞Ω )
The relation of resistance and temperature is as shown on the above graph.
- 12 -
Short-circuited (0Ω)
Parts Mounted
Position

7-2 HOW TO CHECK P.C BOARDS
MR-508M,508ML
MR-560M,560ML
(1) Precautions
Unplug unit before checking
If the control board box is opened with the refrigerator inside
cooled, dew will form on the control board, causing trouble such as
poor insulation.
The following cares must be taken when servicing.
1. Be sure to unplug the power cord before servicing.
2. Wipe away droplets on the control board box with dry cloth,
and dry it up before setting a new controller P.C board.
(2) How to check the control board and vicinity.
The control board box can be checked without opening the box.
Measure the voltage and resistance using 8 connectors outside
the box. How to check with connectors
1. Check for 240 V output during power POWER ON
ON. Make the pin No.7-9 of the 9-pin white connector as a
common pin, and measure the voltage between the common
pin and another pin.
Make sure that 240V AC is output
Note: The room light always has 240V
2. Check for "thermisots" output during power ON
3-pin white connector
Make the pin No.1 of the 3 pin white connector as a common
pin, and measure the voltage between the common
pin and another pin. POWER OFF
Make sure that 2-3V DC is output.
3.Check for weak current wiring during power OFF
3-pin white connector
Remove the connector, and measure the resistance across
-No.1 pin and No.2 pin to confirm the continuty for DEF thermistor.
-No.1 pin and No.3 pin to confirm the continuty for the Freezer thermistor.
- 13 -

7-3 TEST POINT DIAGRAM OF MAIN CONTROL BOARD
MR-508M,508ML
MR-560M,560ML
- 14 -

8 PARTS LIST
DOOR, BODY PARTS
MR-508M,508ML
MR-560M,560ML
- 15 -

NO. PART NO. PART NAME SPEC
Q'TY/UNIT
560ML
W ST W ST W ST W ST
A A A A A A A A
1 KIEG05101 DOOR LINER ( F ) 1 1 1 1 1 1 1 1
2 KIEG05131 FREEZER POCKET 2 2 2 2 2 2 2 2
3 KIEC02115 EGG RACK 2 2 2 2 2 2 2 2
4 KIEG05118 FREE POCKET ( S ) 1 1 1 1 1 1 1 1
5 KIEG05119 FREE POCKET ( L ) 1 1 1 1 2 2 2 2
6 KIEG05124 BOTTLE POCKET 2 2 2 2 2 2 2 2
7 KIEB66143 BOTTLE STOPPER 2 2 2 2 2 2 2 2
KIEG05001 1 1
KIEG06001 1 1
8 DOOR F
KIEG07001 1 1
KIEG08001 1 1
9 KIEC02111 MAGNET GASKET ASSY ( F ) 1 1 1 1 1 1 1 1
KIEG05000 1
KIEG06000 1
KIEG07000 1
KIEG08000 1
10 DOOR R
KIEG09000 1
11
12
KIEG10000 1
KIEG11000 1
KIEG12000 1
KIEC02110 1 1 1 1
MAGNET GASKET ASSY ( R )
KIEC08110 1 1 1 1
KIEG05100 1 1 1 1
DOOR LINER ( R )
KIEG09100 1 1 1 1
13 KIEG05031 BADGE ASSY 1 1 1 1 1 1 1 1
14 KIEE94070 TRIM ASSY 1 1 1 1 1 1 1 1
RECOMMED PART NO. 7, 8, 9, 10
PART NO. THAT ARE CIRCLED ARE NOT SHOWN IN THE FIGURES
- 16 -
508M 508ML 560M
ABBREVIATION
F
R
FREEZER ROOM
REFRIGERATOR ROOM
PRICE

ACCESSORY PARTS
MR-508M,508ML
MR-560M,560ML
37
37
- 17 -

NO.
Q'TY/UNIT
508M 508ML 560M 560ML
SPEC PRICE
W ST W ST W ST W ST
A A A A A A A A
1 KIEC02662 BELL MOUTH 1 1 1 1 1 1 1 1
2 KIEC02473 LAMP COVER ( F ) 1 1 1 1 1 1 1 1
3 KIEG05663 FAN GRILLE ASSY 1 1 1 1 1 1 1 1
4 KIEG05450 ICE CORNER 1 1 1 1 1 1 1 1
5 KIEC02665 DUCT R 1 1 1 1 1 1 1 1
6 KIEG01315 THREMO DIAL ( F ) 1 1 1 1 1 1 1 1
7 KIEG05850 CONTROL PANEL 1 1 1 1 1 1 1 1
8 KIEG05305 THREMO DIAL ( R ) 1 1 1 1 1 1 1 1
9 KIEC02411 SLIDE CHILLED CASE 1 1 1 1 1 1 1 1
10
KIEG05853 1 1 1 1
CONTROL PANEL ( SUB )
KIEG09853 1 1 1 1
11 KIEC02470 LAMP COVER ( R ) 1 1 1 1 1 1 1 1
12 KIEC02420 CRYSTAL SHELF ( R ) 1 1 1 1 2 2 2 2
13
KIEC02685 1 1 1 1
DUCT R (SUB)
KIEC08685 1 1 1 1
14 KIEC02427 SLIDE SHELF (REAR) 1 1 1 1 1 1 1 1
15 KIEC02428 SLIDE SHELF (FRONT) 1 1 1 1 1 1 1 1
16 KIE805794 CASTER SET 2 2 2 2 2 2 2 2
17 KIEG05435 DRAIN PAN 1 1 1 1 1 1 1 1
18 KIEC02789 SHAFT ROLLER 2 2 2 2 2 2 2 2
19 KIEG05326 COVER F 1 1 1 1 1 1 1 1
20
21
KIEC06705 HINGE COVER (RH) 1 1
KIEG06705 HINGE COVER (RH) 1 1
KIEC07705 HINGE COVER (LH) 1 1
KIEG08705 HINGE COVER (LH) 1 1
KIEE94701 HINGE ASSY (UPPER) RH 1 1 1 1
KIEEA3701 HINGE ASSY (UPPER) LH 1 1 1 1
22 KIEC02431 CRYSTAL SHELF ( F ) 1 1 1 1 1 1 1 1
23 KIEC02438 ICE CORNER TRAY 1 1 1 1 1 1 1 1
24 KIEG05440 ICE TRAY 1 1 1 1 1 1 1 1
25 KIEC02467 ICE BOX 1 1 1 1 1 1 1 1
26
27
KIEE94703 HINGE ASSY (MIDDLE) RH 1 1 1 1
KIEEA3703 HINGE ASSY (MIDDLE) LH 1 1 1 1
KIEE94746 DOOR STOPPER (F/R) RH 2 2 2 2
KIEEA3746 DOOR STOPPER (F/R) LH 2 2 2 2
28 KIEG05418 CHILLED CASE DOOR 1 1 1 1 1 1 1 1
29 KIEG05424 CRYSTAL SHELF (R.V.) 1 1 1 1 1 1 1 1
30 KIEG05405 VEGETABLE CASE 1 1 1 1 1 1 1 1
31 KIEG05788 ROLLER BOX 2 2 2 2 2 2 2 2
32 KIEG05798 ROLLER 2 2 2 2 2 2 2 2
33
PART NO.
KIEE94702 HINGE ASSY (LOWER) RH 1 1 1 1
KIEEA3702 HINGE ASSY (LOWER) LH 1 1 1 1
34 KIEC02795 CASTER ASSY 2 2 2 2 2 2 2 2
35 KIEC02460 ADJUST BOLT 2 2 2 2 2 2 2 2
KIEEL6730 1 1 1 1
36 KICK PLATE
KIEG06730 1 1 1 1
37 KIEG05409 PACKING V 1 1 1 1 1 1 1 1
RECOMMEND PART NO. 28, 30, 36
ABBREVIATION
R
F
FREEZER ROOM
REFRIGERATOR ROOM
PART NAME
R.V. BETWEEN REFRIGERATOR ROOM AND VEGETABLE ROOM
- 18 -

ELECTRICIAL PARTS AND UNIT PARTS
MR-508M,508ML
MR-560M,560ML
- 19 -

NO. PART NO. PART NAME SPEC
Q'TY/UNIT
560ML
W ST W ST W ST W ST
A A A A A A A A
1 KIEC02336 THERMAL FUSE(DEF) 73 o C 10A 1 1 1 1 1 1 1 1
2 KIEC03366 LAMP SOCKET ( F ) 1 1 1 1 1 1 1 1
3 KIEE94995 EVAPORATOR 1 1 1 1 1 1 1 1
4 KIE402360 LAMP E12-240V-15W 2 2 2 2 2 2 2 2
5 KIEB66537 HEATER ROOF 1 1 1 1 1 1 1 1
6 KIEB69392 DEFROST HEATER ASSY
240V, 150W WITH
DEODORIZER
1 1 1 1 1 1 1 1
7 KIEB66397 HEATER COVER 1 1 1 1 1 1 1 1
8 KIEB66538 DRIP TRAY 1 1 1 1 1 1 1 1
9 KIEC02301 DAMPER THERMO MM1-6165 1 1 1 1 1 1 1 1
10 KIEE94503 JOINT PIPE 1 1 1 1 1 1 1 1
11 KIEG05277 COMPRESSOR DG77C14RAW5 1 1 1 1 1 1 1 1
12 KIEG05940 E PLATE FINAL ASSY 1 1 1 1 1 1 1 1
13 KIE902735 U WASHER 3 3 3 3 3 3 3 3
14 KIEE76797 RUBBER MOUNT 4 4 4 4 4 4 4 4
15 KIEA74312 THERMISTOR ( DEF ) 1 1 1 1 1 1 1 1
16 KIEB66378 THERMISTOR ( F ) 1 1 1 1 1 1 1 1
17 KIEA74323 MOTOR ATTACH 1 1 1 1 1 1 1 1
18 KIE401329 FAN MOTOR BUSH 2 2 2 2 2 2 2 2
19 KIEC02320 FAN MOTOR UDVH15MA1H 1 1 1 1 1 1 1 1
20 KIECD4362 LAMP SWITCH MM7-271 2 2 2 2 2 2 2 2
21 KIEG05386 LAMP SOCKET ( R ) 1 1 1 1 1 1 1 1
22 KIEG01321 FAN 1 1 1 1 1 1 1 1
23 KIEA53346 RUNNING CAPACITOR 4μF, 400VAC 1 1 1 1 1 1 1 1
24 KIEG01339 REFCON ASSY 1 1 1 1 1 1 1 1
25 KIEB67336 THERMAL FUSE 73 o C 10A 1 1 1 1 1 1 1 1
26 KIEC01354 PLUG CORD ASSY 1 1 1 1 1 1 1 1
27 KIEB68807 CONNECTOR BOX ASSY 1 1 1 1 1 1 1 1
28 KIEAA1980 DRYER XH-9, 10GR 1 1 1 1 1 1 1 1
29 KIEG05341 PROTECT COVER 1 1 1 1 1 1 1 1
30 KIEG05340 MOTOR PROTECTOR 5TM232NHBYY 1 1 1 1 1 1 1 1
31 KIEE76330 PTC RELAY PTH7M330MD2 1 1 1 1 1 1 1 1
RECOMMEND PART NO. 1, 4, 6, 9, 11, 12, 15, 16, 19, 20, 24, 25, 28, 30, 31
ABBREVIATION
F
DEF
FREEZER ROOM
DEFROST
- 20 -
508M 508ML
560M
PRICE

KANG YONG ELECTRIC PUBLIC COMPANY LIMITED.
67 Moo 11, Bangna-Trad Road Km.20, Bangplee, Samutprakarn 10540 Thailand.
P.O.Box : 59 Bangkok 10110
TEL : 337-2431-8 FAX : 337-2439-40 Printing Date : November 2002
Quantity 5 Pcs.