Sharp R-334 (serv.man2) Service Manual ▷ View online
R-334 - 29
TEST DATA
TEST DATA AT A GLANCE
Parts
Symbol
Value / Data
Fuse
F1
F8A / 250V
Thermal cut-out (MG)
TC1
125
°
C
Thermal cut-out (OVEN)
TC2
125
°
C
Oven lamp
OL
240-250 V 25W
High voltage capacitor
C
1.02
µ
F AC 2100V
Magnetron
MG
Filament < 1
Ω
Filament – chassis
∞
ohm.
Power transformer
T
Filament winding < 1
Ω
Secondary winding Approx. 127
Ω
Primary winding Approx. 1.9
Ω
TEST POINT ON CONTROL UNIT
Resistance (Disconnect the
In/Out put terminal
Test Point
Volt
power plug and close the door.)
Input terminal (Power supply)
RY.COM. - A5
230V
∞
Input terminal (Stop switch)
B1–B2
–
0.2 ohm.
Output terminal (Oven lamp,
A1–A5
230V
Approx. 197
Ω
Fan motor, Turntable motor)
Output terminal (Power transformer)
NO. of RY2–A5
230V
Approx. 2.5
Ω
WARNING: DISCONNECT THE PLUG WHEN MEASURING RESISTANCE
WARNING: Before carrying out any work carry out 3D checks
1) Disconnect the supply.
2) Door opened, and wedged open.
3) Discharge high voltage capacitor.
RE-WIRING
Ensure the following:
1.
Wires must not touch:
a)
High voltage parts.
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
b)
Parts that become hot.
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
c)
Sharp edges.
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
d)
Movable parts.
(Fan blade, any motor, switch, switch lever and open button)
(Fan blade, any motor, switch, switch lever and open button)
2.
Positive lock connectors are fitted correctly. Ensure the locking pin is located correctly.
3.
Wires are connected correctly as per pictorial diagram.
4.
No wire leads are trapped by the outer wrap.
WIRING / RE-WIRING
R-334 - 29
TEST DATA
TEST DATA AT A GLANCE
Parts
Symbol
Value / Data
Fuse
F1
F8A / 250V
Thermal cut-out (MG)
TC1
125
°
C
Thermal cut-out (OVEN)
TC2
125
°
C
Oven lamp
OL
240-250 V 25W
High voltage capacitor
C
1.02
µ
F AC 2100V
Magnetron
MG
Filament < 1
Ω
Filament – chassis
∞
ohm.
Power transformer
T
Filament winding < 1
Ω
Secondary winding Approx. 127
Ω
Primary winding Approx. 1.9
Ω
TEST POINT ON CONTROL UNIT
Resistance (Disconnect the
In/Out put terminal
Test Point
Volt
power plug and close the door.)
Input terminal (Power supply)
RY.COM. - A5
230V
∞
Input terminal (Stop switch)
B1–B2
–
0.2 ohm.
Output terminal (Oven lamp,
A1–A5
230V
Approx. 197
Ω
Fan motor, Turntable motor)
Output terminal (Power transformer)
NO. of RY2–A5
230V
Approx. 2.5
Ω
WARNING: DISCONNECT THE PLUG WHEN MEASURING RESISTANCE
WARNING: Before carrying out any work carry out 3D checks
1) Disconnect the supply.
2) Door opened, and wedged open.
3) Discharge high voltage capacitor.
RE-WIRING
Ensure the following:
1.
Wires must not touch:
a)
High voltage parts.
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
b)
Parts that become hot.
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
c)
Sharp edges.
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
d)
Movable parts.
(Fan blade, any motor, switch, switch lever and open button)
(Fan blade, any motor, switch, switch lever and open button)
2.
Positive lock connectors are fitted correctly. Ensure the locking pin is located correctly.
3.
Wires are connected correctly as per pictorial diagram.
4.
No wire leads are trapped by the outer wrap.
WIRING / RE-WIRING
R-334 - 29
TEST DATA
TEST DATA AT A GLANCE
Parts
Symbol
Value / Data
Fuse
F1
F8A / 250V
Thermal cut-out (MG)
TC1
125
°
C
Thermal cut-out (OVEN)
TC2
125
°
C
Oven lamp
OL
240-250 V 25W
High voltage capacitor
C
1.02
µ
F AC 2100V
Magnetron
MG
Filament < 1
Ω
Filament – chassis
∞
ohm.
Power transformer
T
Filament winding < 1
Ω
Secondary winding Approx. 127
Ω
Primary winding Approx. 1.9
Ω
TEST POINT ON CONTROL UNIT
Resistance (Disconnect the
In/Out put terminal
Test Point
Volt
power plug and close the door.)
Input terminal (Power supply)
RY.COM. - A5
230V
∞
Input terminal (Stop switch)
B1–B2
–
0.2 ohm.
Output terminal (Oven lamp,
A1–A5
230V
Approx. 197
Ω
Fan motor, Turntable motor)
Output terminal (Power transformer)
NO. of RY2–A5
230V
Approx. 2.5
Ω
WARNING: DISCONNECT THE PLUG WHEN MEASURING RESISTANCE
WARNING: Before carrying out any work carry out 3D checks
1) Disconnect the supply.
2) Door opened, and wedged open.
3) Discharge high voltage capacitor.
RE-WIRING
Ensure the following:
1.
Wires must not touch:
a)
High voltage parts.
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
b)
Parts that become hot.
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
c)
Sharp edges.
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
d)
Movable parts.
(Fan blade, any motor, switch, switch lever and open button)
(Fan blade, any motor, switch, switch lever and open button)
2.
Positive lock connectors are fitted correctly. Ensure the locking pin is located correctly.
3.
Wires are connected correctly as per pictorial diagram.
4.
No wire leads are trapped by the outer wrap.
WIRING / RE-WIRING
R-334 - 29
TEST DATA
TEST DATA AT A GLANCE
Parts
Symbol
Value / Data
Fuse
F1
F8A / 250V
Thermal cut-out (MG)
TC1
125
°
C
Thermal cut-out (OVEN)
TC2
125
°
C
Oven lamp
OL
240-250 V 25W
High voltage capacitor
C
1.02
µ
F AC 2100V
Magnetron
MG
Filament < 1
Ω
Filament – chassis
∞
ohm.
Power transformer
T
Filament winding < 1
Ω
Secondary winding Approx. 127
Ω
Primary winding Approx. 1.9
Ω
TEST POINT ON CONTROL UNIT
Resistance (Disconnect the
In/Out put terminal
Test Point
Volt
power plug and close the door.)
Input terminal (Power supply)
RY.COM. - A5
230V
∞
Input terminal (Stop switch)
B1–B2
–
0.2 ohm.
Output terminal (Oven lamp,
A1–A5
230V
Approx. 197
Ω
Fan motor, Turntable motor)
Output terminal (Power transformer)
NO. of RY2–A5
230V
Approx. 2.5
Ω
WARNING: DISCONNECT THE PLUG WHEN MEASURING RESISTANCE
WARNING: Before carrying out any work carry out 3D checks
1) Disconnect the supply.
2) Door opened, and wedged open.
3) Discharge high voltage capacitor.
RE-WIRING
Ensure the following:
1.
Wires must not touch:
a)
High voltage parts.
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
(Magnetron, high voltage transformer, high voltage capacitor and high voltage rectifier assembly)
b)
Parts that become hot.
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
(Heating elements, oven lamp, oven cavity magnetron and high voltage transformer)
c)
Sharp edges.
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
(Bottom plates, oven cavity, waveguide flange, chassis support and other metallic parts)
d)
Movable parts.
(Fan blade, any motor, switch, switch lever and open button)
(Fan blade, any motor, switch, switch lever and open button)
2.
Positive lock connectors are fitted correctly. Ensure the locking pin is located correctly.
3.
Wires are connected correctly as per pictorial diagram.
4.
No wire leads are trapped by the outer wrap.
WIRING / RE-WIRING
