Panasonic Bread Bakery SD-YD250 User manual

ORDERNo. KAD0108500C1
E5
AutomaticBread Maker
SD-YD250
USA
SPECIFICATIONS
1

Specifications
Power supply AC120V (60Hz)
Power consumed Maximum550W
Timer Digital timer (up to13 hours)
Protectivedevice Self-resetting motorprotector /
(Open:248°F, Reset:169°F)
Dimensions(H xWxD) Approx. 14”x13 1/3”x9”
Weight Approx.15 lbs
Accessories (Included) Measuring cup, measuring spoon
Capacity max.21 3/4oz./620gof breadflour
/ min.14 3/4oz./420gof bread
flour
2001 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
1. TROUBLESHOOTING GUIDE
1.1. TROUBLESHOOTING CHART
Note :
Causes of unsuccessful baking canbe roughlydividedintouser-side problems and bread
makerproblems. Most of the causes are user-side problems. Accordingly, it is veryimportant to
obtaindetailedinformation fromcustomers on theirconditionsof using the breadmakerand
specifythe cause. / Whenchecking the mainbody, perform the simplified"FUNCTION QUICK
CHECK TESTPROCEDURE MODES".
1.1.1. Symptom : Baking isnot sufficient. Too-light baking color
2

Cause Remedy
User-side
problems
1. Did notadd sugar or sugar quantitywas insufficient.
2. Incorrect selection ofbaking color. 1. Putprescribed quantityofsugar. 2. Select correct baking color.
Breadmaker
problems
1. Cord disconnection (no LCD indication)
2. Fuse operation (no LCD indication)
3. Fuse defects (no LCD indication)
4. Temperaturesensor disconnection (LCD indicates H01.)
5. Heater defects / (Normal about104 :240 V, Normal about96
:230V)
6. PC board defects
1. Replace thecord.
2. Replace thefuse.
3. Replace thefuse.
4. Replace thetemperaturesensor.
5. Replace theheater.
6. Replace thePC board.
1.1.2. Symptom : Too darkbaking color
Cause Remedy
User-side
problems
1. Too much sugar
2. Incorrect selection ofbaking color 1. Reduce sugar quantity. 2. Select correct baking color.
Breadmaker
problems 1. Temperaturesensor defects (Normal about27k :25°C)
2. PC board defects (When itisnotnormal as aresultofthe
“FUNCTION QUICK CHECK TEST”.)
1. Replace thetemperaturesensor.
2. Replace thePC board.
1.1.3. Symptom : Nobread rising Insufficient rising
Cause Remedy
User-side
problems
1. Incorrect measuring offlour
2. Incorrect measuring ofwater
3. No yeast added or incorrect measurementofyeast
4. Inactiveyeast
5. Insufficientkneading at ahigh atmosphericroom temperate
(approximately30°C or higher)
6. Incorrect flour type
7. Used old flour stored for along time.
8. Incorrect amountofflour and water
9. Did notadd sugar or sugar quantitywas insufficient.
10. Too much saltor saltquantitywas insufficient.
11. No kneading blades attached
1. Correctlymeasureflour using ascale.
2. Correctlymeasurewater using a
measuring
3. Correctlymeasureyeast and then add.
4. Purchase anewoneand storeitsealed in
the
refrigerator.
5. Use at 15 to 25°C ambienttemperature.
6. Use extra-strength flour (high protein.)
7. Use newflour and storeitsealed in the
refrigerator.
8. Observetheamountmentioned in the
cookery
9. Observetheamountmentioned in the
cookery
10. Observetheamountmentioned in the
cookery
11. Correctlyset thekneading blades.
Breadmaker
problems 1. Temperaturesensor defects (Normal about27k :25°C)
2. PC board defects (When itisnotnormal as aresultofthe
“FUNCTION QUICK CHECK TEST”)
3. Kneading bladedoes notturn
1. Replace thetemperaturesensor.
2. Replace thePC board.
3. See Symptom : Kneading blade does not
turn.
Abnormal sound while kneading.
1.1.4. Symptom : Too much rising of bread
Cause Remedy
User-side
problems
1. Too much yeast
2. Too much flour
3. Use at high elevations(1000m or more)
1. Reduce yeast.
2. Observetheamountmentioned in the
cookery
3. Reduce yeast.
1.1.5. Symptom : Inside, the bread ishollow.
3

Cause Remedy
User-side
problems
1. Too much water
2. Too littleflour
3. Too much tightening oftheconnector at theback ofthebread
pan
1. Reduce water.
2. Observetheamountmentioned in the
cookery
3. Do nottighten theconnector too much.
Breadmaker
problems
1. Insufficientgas let-outresulting from defectivekneading blade
rotation. / Defect caused bythebread pan's mounting shaft unit
defects
1. Replace themounting shaft unit.
1.1.6. Symptom : Wet bread bottom ordented bread'sside faces
Cause Remedy
User-side
problems
1. Leaving ofthebread in thebread pan 1. Take outthebread soon after baking is
completed.
1.1.7. Symptom : Kneading blade does not turn. Abnormal sound whilekneading
Cause Remedy
Breadmaker
problems
1. Bearing defects in thebread pan
2. Insufficientkneading dueto abelt
3. Motor defects (Normal resistance:See CHECK POINT)
1. Replace themounting shaft unit.
2. Replace thebelt.
3. Replace themotor
1.1.8. Symptom:Dryyeast does not drop from Yeast dispenser.
Cause Remedy
Effect caused
bystatic
electricity
1. Staticelectricitycould cause asmall amountofdryyeast to be
left in thedispenser. Wipe the innerwalls of the
dispenser
witha wet cloth. Afterthe
inside
dispenserdries, put the yeast
in
dispenserand see if it still
sticks
innerwalls of the dispenser. Ifit
doesn’t, static electricityhas
been
removed. You canuse the
bread
normally.
Breadmaker
problems Check the operation of the solenoidand yeast dispensing chute in Motor operation test
.
1. Thesolenoid operates correctly, butthechute closes and
opensirregularly.
2. Themotor runs, butthesolenoid does notrun.
3. Areplaced solenoid does notrun.
1. Confirm theoperation oftheyeast
dispensing
or lever and repair or replace thebroken
part
necessary.
2. Replace thesolenoid.
3. Replace thePC Board Assembly.
1.2. CHECK POINT
4

No. Parts Name
1Temp. sensor(Betweentab(A); approx. 27k :
25°C)
2Temp. fuse (Between(B)-(C); 0 )
3 Heater(Between(D)-(E); approx. 25
4 Angle
5 HeaterCase Ass’y
6 P.C. BoardB Ass’y
7 Motor / White-Red:approx. 30 / White-Blue:
approx. 29
2. DISASSEMBLY PROCEDURE
Note:
The assemblyprocedure is the reverse of the disassemblyprocedure
2.1. Removal of PCB (A)and Solenoid
1. Remove the twoscrewson the front rear corner which secures
the control panel. (Fig.1)Fig.1
5

No. Parts Name
1Top Lid
2 Screw
2. Move front control panel towards the rear Aand lift off Bcarefully.
(Fig.2 & Fig.3)Fig.2
No. Parts Name
1Heatercase
2Tabs
3Control panel
Fig.3
6

No. Parts Name
1Control panel
2 Body
3. Carefullydisconnect the PCB cover assembly. / Remove the one
screw which secures PCB cover assembly. (Fig.4)
Fig.4
No. Parts Name
1Flat cable
2 PCB cover
3 Screw
Removal of Positive Lock connector
The positive lock connectoris a specialtydesignedloose free connector. / To remove this
connector, pull the plug and the socket bypressing anextrudedleverinthe centerof plug.(Fig.5
)
Fig.5
7

No. Parts Name
1Positive lock connector
2Extrudedlever
4. Remove the PCB cover assemblybylifting up from the right side.
5. To separate the PCB from the cover assembly, bend back the four
holding tabs whilelifting out the PCB. (Fig.6)
Fig.6
No. Parts Name
1PCB Cover
2 PCB-(A)
3Tabs
4 Flat cable
6. Remove the screw of Solenoidholder plate, and Solenoidand
Spring Aare detached. (Fig.7)Fig.7
8

No. Parts Name
1Screw
2 Solenoidholderplate
3Solenoid
4Spring A
2.2. Remove of PCB (B)
Note:
Please detachControl panel and Top lidtothe start, and remove the connectorconnection of
leadwires.
Before turning the bodyupside down, remove the kneading blade and breadpan.
1. Remove the sixscrewswhich secure the heater case from the
sides. (Fig.8)Fig.8
No. Parts Name
1Screw
9

2. Turn the bodyupside downand remove the four mounting screws
inorder to remove the feet. (Fig.9)
3. Remove the four bottom plate mounting screwsinorder to
remove the Bottom plate. (Fig.9)
Fig.9
No. Parts Name
1Screw
2 Washer
3 Rubberfoot
4Bottomplate
5 Screw(Wide pitchthread)
6Screw(Normal thread)
4. Pull the bodyupward to remove the heater case. (Fig.10)
Fig.10
No. Parts Name
1Powercord
2Body
10

5. Pull out and disconnect the connector on the circuitboard. (Fig.11
)
Removal of Positive Lock connector
The positive lock connectoris a specialtydesignedloose connector. / To remove this
connector, pull the leadwire bypressing anextrudedleverinthe centerof receptance terminal.
6. Remove the screw.
7. Remove the PCB holder assembly. (Fig.11)
Fig.11
No. Parts Name
1Angle
2 Screw
3 PCB-(B)
4 PCB holder
2.3. Bottom plate, and bodyDisassembly
Note:
Please detachControl panel and Top lidtothe start, and remove the connectorconnection of
leadwires.
1. Remove the sixscrewswhich secure the heater case from the
sides. (Fig.8)Fig.8
11

No. Parts Name
1Screw
2. Turn the bodyupside downand remove the four mounting screws
inorder to remove the feet. (Fig.9)
3. Remove the four bottom plate mounting screwsinorder to
remove the Bottom plate. (Fig.9)
Fig.9
No. Parts Name
1Screw
2 Washer
3 Rubberfoot
4Bottomplate
5 Screw(Wide pitchthread)
6Screw(Normal thread)
4. Pull the bodyupward to remove the heater case. (Fig.10)
Fig.10
12

No. Parts Name
1Powercord
2Body
2.4. Power cord
1. Disconnect the power cord connectors.
2. Push the cord bushing Aand push out B. (Fig.12)
Fig.12
No. Parts Name
1Angle
2 Cordbushing
3Powercord
2.5. Temperature sensor (&fuse) assembly
1. Remove the sensor mounting screw. (Fig.13)
2. Pull out and disconnect the CN1, CN2, CN4, heater terminal
connector (black lead wires) and power cord connector.
13

Fig.13
No. Parts Name
1(+) Screw(short) driver
2 Sensor
3Angle
3. Remove the temperature plate from Heater case. (Fig.14)
Fig.14
No. Parts Name
1Heatercase (Insertion portion)
2Sensor
3 Temp. fuse
2.6. Top lid
1. Remove the screwswhich secure the left side of hinge.
2.7. Inner lid
1. Remove the twoscrewswhich secure the inner lid.
14

2. Remove the eight tabs which secure the inner lidbyusing minus
screwdriver. / The removing order recommends (a) (b) (c)
(d) (e) (f) (g) (h).(Fig.15)
Fig.15
No. Parts Name
1Screw
2Top lid
3 Innerlid
4Tabs (a) ~ (h)
5(-) Screwdriver
2.8. Yeast dispenser chute, Yeast dispenser and Lever.
1. Remove Yeast dispenser chute. (Fig.16)
2. Remove one screw which secure Yeast dispenser (w/steam vent).
3. Remove one screw which secure Lever.
Fig.16
15

No. Parts Name
1Screw(forYeast dispenser)
2Screw(forLever)
3Steamvent (Yeast dispenser)
4Lever
5 Yeast dispenserchute
2.9. Heater
1. Remove the twoheater terminal disconnect.
2. Press the heater bobbinB(two) from outside the heater case.
(Fig.17)Fig.17
No. Parts Name
1Three tabs
2Angle
3 HeaterbobbinB
3. Remove the screw which secure heater bobbinAand remove the
heater. / Assemblyinstruction: Reset the three tabs.
2.10. Belt, Pulleyand Connector lower (Fig.16)
1. Remove the belt.
2. Remove the nut and the pulleyB.
3. Remove the U-ring and pull out the connector (lower) from the
heater case side. Fig.18
16

No. Parts Name
1Heatercase
2 Angle
3 Connector(lower)
4Heatercase base
5 PullyB (for5 ribs Belt)
6 MotorwasherA
7 U-ring
8 Lock washer
9 Nut
10 Belt (5 ribs/wide type)
Note:
Belt, PullyB and PullyA(withmotor) of this model use a wide type toimprove the durabilityof
the belt. / There is no interchangeabilitymutual withparts of the previous models. / Please note
that nevermaking a mistake inthe use of eachpart, whenexchange parts.
2.11. Heater case base
1. Beltand PullyBare detached beforehand.
Assemblyinstruction: / The position of each Set Mark must be
matched.
2. Remove the four screwswhich secure the heater case base, and
remove the heater case base. (Fig.19)
Fig.19
17

No. Parts Name/Mark
1Set Mark [Circle]
2 Set Mark [Square]
3 Screw
4 Heatercase
5 Heatercase base
2.12. Bread pan, Mounting shaft unit
1. Turn the bread pan upside down, remove the three screwsand
remove the mounting shaft unit. (Fig.20)
Fig.20
No. Parts Name
1Breadpan
2 (+) Screwdriver
3 Mounting shaft unit
2. Remove the rubber seal.
18

2.12.1. ASSEMBLY INSTRUCTIONS
1. First place the rubber seal over the shaft opening on the bread
pan as showninthe figure. (Fig.21)
Fig.21
No. Parts Name
1Packing (Rubberseal)
2Screwhole *Note1
*Note1: The Screw holebefore the screw istightened isastraight
holewithout the tap.
2. Install and align Set mark of the mounting shaft and the bread
pan. (Fig.22)Fig.22
19

No. Parts Name/Mark
1Connector(upper)
2Set mark
3Mounting shaft unit
4 Screwhole
3. Insert screwsand tighten.
Caution :
Donot forget to insert the rubber seal when assembling.
Also be sure not to twist thisseal during assembly.
When replacing the shaft mounting unit, be sure to use anew
rubber seal (Packing) and three new screws.
The curing agent of the loose prevention isgiven to an unused
screw for the repairexchange.
3. SCHEMATIC DIAGRAM
20