Panasonic MC-CG677-SC79 User manual

© 2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
Order No.VCB07040011CE
Vacuum Cleaner
MC-CG677-SC79
MC-CG677-SA76
MC-CG677K-SP47
Product Color :Silver
Destination :Europe
TABLE OF CONTENTS
PAGE PAGE
1 Specifications ----------------------------------------------------- 2
2 Location of Controls and Components ------------------- 3
3 Troubleshooting Guide ----------------------------------------- 5
4 Disassembly and Assembly Instructions ---------------- 6
4.1. Dust box cover assembly removal -------------------- 6
4.2. Separate the upper and lower body units ----------- 7
4.3. Printed circuit board assembly (P.C.B Ass’y)
removal------------------------------------------------------- 7
4.4. Motor removal ---------------------------------------------- 9
4.5. Replacement of the indicator ornamental plate
unit ------------------------------------------------------------ 9
4.6. Replacement of the P.C.B. DU, P.C.B. KU,
and indicator unit -----------------------------------------10
4.7. Cord reel partition unit replacement -----------------11
4.8. Rail base U replacement -------------------------------11
4.9. Spring-loaded cord reel pre-winding-----------------12
4.10. How to disassemble the turbine nozzle ------------12
5 Wiring Connection Diagram ---------------------------------14
6 Exploded View and Replacement Parts List ----------- 15
6.1. EXPLODED VIEW (ATTACHMENTS) -------------- 15
6.2. PARTS LIST (ATTACHMENTS) ---------------------- 16
6.3. EXPLODED VIEW (BODY UNIT)-------------------- 17
6.4. PARTS LIST (BODY UNIT)---------------------------- 18
6.5. PACKING INSTRUCTIONS --------------------------- 19
6.6. PACKING LIST ------------------------------------------- 20

2
1 Specifications
Model No. MC-CG677 MC-CG677K
Power source AC230V~50Hz AC230-240V~50Hz
Input power (MAX) 1400W
Input power (Nominal) 1200W 1100-1200W
Power control O
Extension wand Metal telescopic
Turbin nozzle O
Dimensions (WxLxH)mm 280x430x260
Net weight 5.1kg
Cleaning tools Crevice nozzle / Dusting brush

3
2 Location of Controls and Components

4

5
3 Troubleshooting Guide
CONDITION CHECKPOINT METHOD OF INSPECTION CAUSE / REMEDY
When dust is vacuumed off, the
dust sensor indicator lamp doesn’t
light up.
Or, it lights up when dust is not
vacuumed off.
With the swivel cap unit set to
“AUTO”, the dust suction power is
not affected
Air inlet Check whether or not dust or for-
eign substances adhere to the dust
sensor of the air inlet.
Wipe the dust sensor with a dry
soft cloth.
If there is no improvement in symp-
toms, then replace the P.C.B. assy.
Motor fails to rotate Power supply cord Check power supply cord continu-
ity.
If there is no continuity, replace the
cord reel patition unit.
Fuse of P.C.B. Ass’y
(250V, 10A)
Check fuse continuity. If there is no continuity, replace
P.C.B. Ass’y.
Motor continuity Check the conduction between the
terminals of the motor.
If there is no continuity, replace the
motor.
ON/OFF Switch Check continuity across switch
connections
If there is no continuity, replace
P.C.B. Ass’y.
Triac (Inside of P.C.B.) Check if there is any problem in the
triac.
(Please refer to how to check the
triac.)
If it has any problem, replace the
P.C.B. Ass’y.
P.C.B. Ass’y Check the internal parts for any-
thing unusual. (burn-out, melt-
down, etc.)
If anything unusual is found,
replace the P.C.B. Ass’y with new
one.
Motor runs but there is no suction Hose or Suction inlet Check if there is any blockage in
the hose or suction inlet.
If there is any blockage, remove it.
Dust bag / Secondary filter Check if dust bag is full or Second-
ary filter is choked up.
If dust bag is full, replace with a
new one. If Secondary filter is
choked up, remove and clean it out
or replace.
Noise or vibration Motor fan Check dust accumulated in motor
fan (it could happen if the vacuum
cleaner has been used without cen-
tral filter).
If there is accumulated dust in the
motor fan, replace the motor and
check filter condition. (never try to
dismantle the motor fan)
Motor does not change power
(runs always at full speed)
Power control Adjust the power control and check
whether or not the resistance var-
ies. (Black←→Red)
If the resistance does not vary, then
replace the Control.
P.C.B. Ass’y Examine the triac in the P.C.B.
Ass'y and check whether or not T1
and T2 are short-circuited.
If they are short-circuited, then
replace the P.C.B. Ass'y.
Motor runs irregularly P.C.B. Ass’y Check possible bad contact of
P.C.B. Ass’y.
Replace P.C.B. Ass’y.

6
4 Disassembly and Assembly Instructions
Important notice: Before replacing any components, make sure to turn OFF the vacuum cleaner.
Remove the power plug from the outlet.
4.1. Dust box cover assembly
removal
1. Open the dust box and remove the lead wire cover.
2. When removing the lead wire cover, use a flat-blade
screwdriver as an aid.
3. Remove the connectors from the lead wire AU and P.C.B.
DU.
4. Open the dust box lid assy at an angle of approximately
45 degrees and insert an flat-blade screwdriver into a gap
between the upper body and the dust box lid assy. Move
the screwdriver in the direction of the arrow to remove the
left fitting section of the dust box lid assy.

7
4.2. Separate the upper and lower
body units
1. Remove the five screws fixing the upper body U and
lower body U.
2. Remove the screw fixing the upper body U from the rear
side.
3. Lift the upper body U to separate it from the lower body U.
4.3. Printed circuit board assembly
(P.C.B Ass’y) removal
1. Remove the Swivel cap unit.
2. Remove the Insulation plate
3. Wiring illustration

8
4. Remove the P.C.B. Ass'y from the P.C.B. holder.
* When removing the P.C.B Ass’y, widen the frame of
the P.C.B holder, and then remove the P.C.B from the
hook of the P.C.B holder.
Note: When removing the P.C.B. assy, do not bend it
to prevent damage and the wires from breaking.
5. Remove the fastening terminal of the lead wire from cord
reel partition U connected to the printed circuit board and
that of the lead wire from the motor.
* Note: When removing the fastening terminal of the
lead wire, please hold the terminal fixed to the printed
circuit board to prevent an excessive load from being
applied to it.
6. Remove the Control and Lead wiire BU.
7. Remove the two screws fixing the P.C.B. holder and pull it
out from the lower body U.

9
4.4. Motor removal
1. Lift the motor section from the lower body U.
2. Remove the components fitted to the motor.
a. Remove the thermal protector.
b. Remove the motor support rubber (rear).
c. Remove the motor support.
d. Remove the lead wires connected to the motor.
e. Remove the noise suppressor.
f. Remove the motor support rubber (front).
* Note: When the thermal protector has been
replaced, make sure to paste the tape (gasket V) back
on the terminals.
4.5. Replacement of the indicator
ornamental plate unit
1. Remove the three screws fixing the air inlet guide on the
rear of the dust box lid assy.
2. Hook off the two fixing tabs on the indicator ornamental
plate unit with a flat-blade screwdriver.

10
3. Turn it over to remove the indicator ornamental plate unit.
4.6. Replacement of the P.C.B. DU,
P.C.B. KU, and indicator unit
1. Remove air inlet packing A.
2. Remove the indicator unit.
3. Remove the P.C.B. KU.
4. Remove the air inlet guide U and then remove the lead
wire AU from the P.C.B. DU.
5. Remove the P.C.B. DU from the air inlet guide tabs.

11
6. Similarly, remove the LED lamp printed circuit board from
the Air inlet guide U.
4.7. Cord reel partition unit
replacement
1. Increase the gap width between the cord reel and the
lower body with a screwdriver. While removing the cord
reel shaft from the side of the lower body, lift the cord reel
partition unit.
* For easy removal, pull out the cord slightly, and
then lift the cord reel.
4.8. Rail base U replacement
1. Remove the screw fixing the rail base U onto the cord reel
partition U.
2. Remove the rail base U from the cord reel partition U.

12
4.9. Spring-loaded cord reel
pre-winding
1. The cord reel partition U has a spring that pre-winds the
cord reel.
If the cord is not wound, then press the brake arm, and
the cord pre-winding will be loosened.
When making spare turns again, do it in the direction of
the arrow.
* Number of spare turns: MC-CG677 --- Three turns
(Cord reel PartitionU for destinations other than UK)
: MC-CG677K --- Five turns
(Cord reel PartitionU for UK)
* If you want to release the pre-winding, then make
sure to hold the cord plug.
4.10. How to disassemble the
turbine nozzle
4.10.1. Agitator ass'y
1. Rotate the Lock on the brush cover to unlock and remove
the brush cover U.
2. Pull up the agitator ass’y and remove the belt and agitator
ass’y (complete). (Fig.29)
4.10.2. Separation of the floor nozzle
upper U from the floor nozzle
lower U
1. Remove the four screws fixing the floor nozzle lower U.
(Fig.30)
2. Remove the floor nozzle lower U.
4.10.3. Turbine Ass’y
1. Pull up the floor nozzle wand U and remove the turbine
ass’y. (Fig.31)

13
4.10.4. Removal of the floor nozzle brush
CU.DU.EU.FU
1. Turn the floor nozzle lower unit over. Insert the tip of a
flat-blade screwdriver into the ditch in the brush installa-
tion part, then remove the brush.(Fig.32)

14
5 Wiring Connection Diagram
MODEL MC-CG677 / CG677K

15
6 Exploded View and Replacement Parts List
6.1. EXPLODED VIEW (ATTACHMENTS)
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16
6.2. PARTS LIST (ATTACHMENTS)
*In the Remarks column, (Parts No.) indicates the part number described in the operating instructions.
Safety Ref No. PART NO. PART NAME & DESCRIPTION Q'TY Remarks
A1 AMC94P-YD0SE HOSE ASS'Y 1
A2 AMC99P-ZF06E EXTENSION WAND UNIT 1
A3 AMC99R-ZF0VE TURBIN NOZZLE 1 (Floor Nozzle)
A4 AMC60R-UA0VE CREVICE TOOL 1 (Crevice Nozzle)
A5 AMC88R-UA0VE DUSTING BRUSH 1
A6 AMC98R-ZF00E FLOOR NOZZLE UPPER UNIT 1
A7 AMC18R-ZF02E NOZZLE LEVER 1
A8 AMC78Z-ZF0VE SUPPORTER 1
A9 AMC92S-ZF00E AGITATOR ASSY 1
A10 AMC28S-ZF00E BELT 1
A11 AMC94R-ZF00E NOZZLE WAND UNIT 1
A12 AMC93S-ZF00E TURBINE ASSY 1
A13 AMC13R-ZF02E NOZZLE SENTER 1
A14 AMC97R-ZF0VE FLOOR NOZZLE LOWER UNIT 1
A15 AMC1CR-ZF00E FLOOR NOZZLE BRUSH D UNIT 1
A16 AMC1BR-ZF00E FLOOR NOZZLE BRUSH C UNIT 2
A17 AMC1ER-ZF00E FLOOR NOZZLE BRUSH F UNIT 1
A18 AMC1DR-ZF00E FLOOR NOZZLE BRUSH E UNIT 1
A19 AMC98Q-ZF0VE BRUSH COVER UNIT 1
A20 XTN4+14BFJ SCREW 4

17
6.3. EXPLODED VIEW (BODY UNIT)
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18
6.4. PARTS LIST (BODY UNIT)
Safety Ref No. PART NO. PART NAME & DESCRIPTION Q'TY Remarks
B1 AMV93K-4K0KE DUST COVER ASS'Y 1
B2 AMV94M-4K0SE INDICATOR PLATE UNIT 1 Silver
B3 AMV66J-4K00E CAP 1
B4 AMV64H-4K00E SUCTION INLET PACKING 1
B5 AMV67V-4K00E LEAD WIRE A UNIT 1
B6 AMV87V-4K00E PRINTED CIRCUIT BOARD DU 1
B7 AMV80J-4K0KE AIR INLET GUIDE UNIT 1
B8 AMV66H-4K00E SUCTION INLET PACKING A 1
B9 AMV80W-4K00E PRINTED CIRCUIT BOARD KU 1
B10 AMC46N-YD04E CORD REWIND BUTTON 1
B11 AMC05E-YD04E SWITCH PEDAL 1
B12 AMC08E-YP00E SWITCH SPRING 1
B13 AMC01B-YD03E HANDLE 1
B14 AMC98M-4K00E INDICATOR UNIT 1
B15 AMV60K-4K0KE DUST COVER 1
B16 AMC04D-YD00E BUCKLE SPRING 1
B17 AMC01D-YD0VE BUCKLE 1
B18 AMC32A-YD03E FURNITURE GUARD RIGHT 1
B19 AMC30A-YD03E FURNITURE GUARD LEFT 1
B20 AMV63E-4K0KE WIRE COVER 1
B21 XTN4+16BFJ TAPPING SCREW 16
B22 XTN4+10BFJ TAPPING SCREW 2
B23 AMV98A-4K0VE UPPER BODY UNIT 1
B24 AMC03L-YD00E GASKET A 1
B25 XTN4+16BFJK TAPPING SCREW 1
B26 AMV89V-4K00E P.C.B A UNIT 1
B27 AMC56L-1800E GASKET V 2
B28 AMV36M-4K00E CONTROL 1
B29 AMV68V-4K00E LEAD WIRE B UNIT 1
B30 AMC23Q-4K0SE SWIVEL CAP UNIT 1
B31 AMV65D-4K00E SPRING 1
B32 AMV03E-4K00E SWITCH COVER 1
B33 AMV59V-4K00E P.C.B HOLDER 1
B34 AMC03F-YD00E MOTOR SUPPORT RUBBER (REAR) 1
B35 XTT4+10FFJ TAPPING SCREW 2
B36 AMV07F-4K00E MOTOR SUPPORT FRONT 1
B37 AMV35G-4K00E BLACK LEAD WIRE S 1
B38 AMV20W-4K00E THERMAL PROTECTOR 1
B39 XTN3+12BFY TAPPING SCREW 2
B40 AMC99G-2800E NOISE SUPPRESSOR 1
B41 AMV92F-4K00C FAN MOTOR UNIT 1 Only UK
B41 AMV92F-4K00E FAN MOTOR UNIT 1 Europe (UK is excluded)
B42 AMV02F-4K00E MOTOR SUPPORT RUBBER FRONT 1
B43 AMV91N-4K00E CORD REEL PARTITION UNIT 1 Europe With Plug
B43 AMV91N-4K008 CORD REEL PARTITION UNIT 1 Only UK With Plug
B43 AMV91N-4K00L CORD REEL PARTITION UNIT 1 Only Switzerland With Plig
B44 AMV98N-4L00E RAIL BASE UNIT 1
B45 AMC37K-YP00E SECONDARY FILTER 1
B46 AMC43K-YP0VE PRE-FILTER 1
B47 AMC-J1EP PAPER BAG (TYPE C-17) 1 Pack 4/U TYPE C-17(Entering by four pieces)
High Efficiency Bag
B47 AMC8F96T1000 PAPER BAG (TYPE C-20E) 1 Pack 5/U TYPE C-20E(Entering by five pieces)
B48 AMC10K-YD0VE BAG SUPPORTER 1
B49 AMC34D-YP00E SPRING A 1
B50 AMC99C-YM0VE WHEEL 2
B51 AMC97A-YD0VE LOWER BODY UNIT 1
B52 AMC73K-YP00E DUST BOX PACKING 1
B53 AMC95C-YM0VE CASTER UNIT 1
B54 AMC93B-YD03E HANDLE GRIP UNIT 1
B55 AMC66B-YD03E LOWER HANDLE 1
B56 AMC67L-YD00E GASKET F 1
B57 AMC66L-YD00E GASKET E 1
B58 AMV95K-4C00E FILTER UNIT 1
B59 AMC41K-YP0VE FILTER COVER 1
B60 AMC88R-UA0VE DUSTING BRUSH UNIT 1
B61 AMC60R-UA0VE CREVICE TOOL 1

19
6.5. PACKING INSTRUCTIONS
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20
6.6. PACKING LIST
Safety Ref No. PART NO. PART NAME & DESCRIPTION Q'TY Remarks
C1 AMV61Z-4K0SE CARTON BOX 1
C2 AMC49Z-YD00E PARTITION BOARD A 1
C3 AMC69Z-YD00E CUSHION A 1
C4 AMC10Z-YD00E BODY BAG 1
C5 AMV01Z-4K008 OPERATING INSTRUCTIONS 1 MC-CG677K Only UK
C5 AMV01Z-4K00E OPERATING INSTRUCTIONS 1 MC-CG677 Europe.Switzerland