Panasonic NN-T793SF User manual

© 2003 Shanghai Matsushita Microwave Oven Co.,
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
NN-T793SF
NN-T783SF
NN-T763SF
NN-S763BF
NN-S763WF
NN-S753BF
NN-S753WF
NN-S743BF
NN-S743WF
APH(USA)
CPH(CANADA)
Microwave Oven
Please file and use this specified manual together with the service manual for Model NN-
S560BF/WF(ORDER NO. SIMMC0001002C3).
ORDER NO.SIMMC 0301003A1
E1

2
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

3
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

1 SCHEMATIC DIAGRAM (APH) 5
2 SCHEMATIC DIAGRAM (CPH) 6
3 MEASUREMENTS AND ADJUSTMENTS 7
4 PROCEDURE FOR MEASURING MICROWAVE ENERGY
LEAKAGE 8
5 EXPLODED VIEW AND PARTS LIST 9
6 PARTS LIST 10
7 ESCUTCHEON BASE ASSEMBLY (NN-S*** APH/CPH) 11
8 ESCUTCHEON BASE ASSEMBLY (NN-T*** APH/CPH) 12
9 PACKING AND ACCESORIES 13
10 DOOR ASSEMBLY 14
11 WIRING MATERIALS 14
12 DIGITAL PROGRAMMER CIRCUIT (NN-T793 APH/CPH) 15
13 DIGITAL PROGRAMMER CIRCUIT (NN-T783 APH, NN-T763
APH) 17
14 DIGITAL PROGRAMMER CIRCUIT (NN-S763 APH/CPH, NN-
S753 CPH) 19
15 DIGITAL PROGRAMMER CIRCUIT (NN-S753 APH, NN-S743
APH) 21
16 DIGITAL PROGRAMMER CIRCUIT 23
CONTENTS
Page Page
4
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

1 SCHEMATIC DIAGRAM (APH)
5
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

2 SCHEMATIC DIAGRAM (CPH)
6
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

3.1. Adjustment of Primary latch
switch, Secondary latch
switch and Short switch.
1. When mounting Primary latch switch,Secondary latch
switch and short switch to door hook assembly, mount the
Primary latch switch, the Secondary latch switch and the
short switch to the door hook assembly as shown in table.
NOTE:
No specific adjustment during installation of
Primary latch switch, Secondary latch switch and
short switch to the door hook is necessary.
2. When mounting the door hook assembly to the oven
assembly, adjust the door hook assembly by moving it in
the direction of arrow in the illustration so that the oven door
will not have any play in it. Check for play in the door by
pulling the door assembly. Make sure that the latch keys
move smoothly after adjustment is completed. Completely
tighten the screws holding the door hook assembly to the
oven assembly.
3. Reconnect the short switch and check the continuity of the
monitor circuit and all latch switches again by following the
components test procedures.
3.2. Measurement of microwave
output
The output power of the magnetron can be determined by
performing IEC standard test procedures. However,due to the
complexity of IEC test procedures, it is recommended to test
the magnetron using the simple method outlined below.
Necessary Equipment:
*1 liter beaker *Glass thermometer
*Wrist watch or stopwatch
NOTE:
Check the line voltage under load.Low voltage will
lower the magnetron output. Take the temperature
readings and heating time as accurately as possible.
1. Fill the beaker with exactly one liter of tap water.Stir the
water using the thermometer and record the beaker´s
temperature. (recorded as T1).
2. Place the beaker on the center of glass cook plate.
Set the oven for High power and heat it for exactly one
minute.
3. Stir the water again and read the temperature of the beaker.
(recorded as T2).
4. The normal temperature rise at High power position for
each model is as shown in table.
TABLE (1L-1min.test)
RATED OUTPUT TEMPERATURE RISE
1200W(IEC705-88) Min. 18.5°F(10.3°C)
1300W(IEC705-88) Min. 19.8°F(11.1°C)
1400W(IEC705-88) Min. 21.6°F(12.0°C)
3 MEASUREMENTS AND ADJUSTMENTS
7
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

NOTE:
The U.S. Government standard is 5 mW/cm2while in the
customer’s home. 2mW/cm2stated here is our own
voluntary standard. (1mW/cm2for Canada)
4.1. Equipment
• • •
• Electromagnatic radiation monitor
• • •
• Glass thermometer 212°F or 100°C
• • •
• 600cc glass beaker
4.2. Procedure for measuring
radiation leakage
Note before measuring.
• • •
• Do not exceed meter full scale deflection. Leakage monitor
should initially be set to the highest scale.
• • •
• To prevent false readings the test probe should be held by
the grip portion of the handle only and moved along the
shaded area in Figure no faster than 1 inch/sec
(2.5cm/sec).
• • •
• Leakage with the outer panel removed ...... less than
5mW/cm2.
• • •
• Leakage for a fully assembled oven with door normally
closed ...... less than 2mW/cm 2(1mW/cm 2for Canada).
• • •
• Leakage for a fully assembled oven [Before the latch switch
(primary) is interrupted] while pulling the door ...... less than
2mW/cm 2.
1. Pour 275 ± 15cc (9ozss± 1/2oz) of 20°C ± 5°C (68° ± 9°F)
water in a beaker which is graduated to 600cc, and place in
the center of the oven.
2. Set the radiation monitor to 2450MHz and use it following
the manufacturer´s recommended test procedure to assure
correct results.
3. When measuring the leakage, always use the 2 inch (5cm)
spacer supplied with the probe.
4. Tap the start pad or set the timer and with the magnetron
oscillating, measure the leakage by holding the probe
perpendicular to the surface being measured.
4.2.1. Measurement with the outer panel
removed.
Whenever you replace the magnetron, measure for radiation
leakage before the outer panel is installed and after all
necessary components are replaced or adjusted. Special care
should be taken in measuring around the magnetron.
4.2.2. Measurements with a fully
assembled oven.
After all components, including outer panel are fully assembled,
measure for radiation leakage around the door periphery, the
door viewing window, the exhaust opening and air inlet
openings.
4.3. Record keeping and
notification after measurement
• • •
• After any adjustment or repair to a microwave oven, a
leakage reading must be taken. Record this leakage
reading on the repair ticket even if it is zero.
A copy of this repair ticket and the microwave leakage
reading should be kept by repair facility.
• • •
• Should the radiation leakage be more than 2 mW/cm2
(1mW/cm for Canada) after determining that all parts are in
good condition, functioning properly, and genuine
replacement parts as listed in this manual have been used,
immediately notify PASC, PSC or PCI.
4.4. At least once a year, have the
radiation monitor checked for
calibration by its
manufacturer.
4 PROCEDURE FOR MEASURING MICROWAVE ENERGY
LEAKAGE
8
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

5 EXPLODED VIEW AND PARTS LIST
9
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

6 PARTS LIST
NOTE:
1. When ordering replacement part(s), please use part number(s) shown in this part list.
Do not use description of the part.
2. Important safety notice:
Components identified by mark have special characteristics important for safety.
When replacing any of these components, use only manufacture’s specified parts.
NOTE:
“A” parts are supplied by MOD (Japan)
“F” parts are supplied by SIMMC (China)
Ref. No. Part No. Part Name & Description Pcs/Set Remarks
1F00064W70AP CAUTION LABEL 1 T*** APH
1F00069660AP CAUTION LABEL 1 S*** APH
1F00067600CP CAUTION LABEL 1 CPH
2F00075X00SAP NAME PLATE 1T793SF APH
2F00075X10SAP NAME PLATE 1T783SF APH
2F00075X70SAP NAME PLATE 1T763SF APH
2F00075X20BAP NAME PLATE 1S763BF APH
2F00075X20HAP NAME PLATE 1S763WF APH
2F00075X30BAP NAME PLATE 1S753BF APH
2F00075X30HAP NAME PLATE 1S753WF APH
2F00075X40BAP NAME PLATE 1S743BF APH
2F00075X40HAP NAME PLATE 1S743WF APH
3F00334W00AP FUSE LABEL 1
4F10015X00AP BASE 1
5F10084T00AP RUBBER FOOT 4
6F110D5X00SAP CABINET BODY (U) 1T***SF APH/CPH
6F110D5K00BAP CABINET BODY (U) 1S763BF APH/CPH, S753BF APH, S743BF APH
6F110D4W00HAP CABINET BODY (U) 1S763WF APH/CPH, S753WF APH/CPH, S743WF APH
7F200A5X20AP OVEN (U) 1 T***SF APH/CPH, S763BF/WF APH, S763BF/WF CPH,
S743BF/WF APH
7F200A5X30AP OVEN (U) 1 S753BF/WF APH, S753WF CPH
8F20555K00AP COVER 1
9F21315Y00AP PULLY SHAFT 1
10 F2177-F80 WASHER 1
11 F290D9330AP ROLLER RING (U) 1
12 F3020-1200 DOOR HOOK 1
14 F3136-1200 HOOK LEVER A 1
15 F31374650AP HOOK LEVER B 1
16 F31384650AP HOOK LEVER C 1
17 F400A5Y00AP FAN MOTOR 1AC120V, SINGLE PHASE, 60Hz
18 F40084T10AP FAN BLADE 1
19 F40254W00AP AIR GUIDE A 1
21 F41445W00AP ORIFICE 1
22 F64508660AP SENSOR COVER B 1T***SF APH/CPH, S763BF/WF APH, S763BF/WF CPH,
S743BF/WF APH
24 F65434W00AP SENSOR COVER C 1T***SF APH/CPH, S763BF/WF APH, S763BF/WF CPH,
S743BF/WF APH
25 A607S4M00AP STEAM SENSOR 1T***SF APH/CPH, S763BF/WF APH, S763BF/WF CPH,
S743BF/WF APH
26 F612E4W00AP INCANDESCENT LAMP (U) 1125V, 60Hz, 20W
27 F61425U30XN MICRO SWITCH 1(PRIMARY LATCH SWITCH) (KW3-0D-A (474))
28 F61415U30XN MICRO SWITCH 1(SECONDARY LATCH SWITCH) (KW3-0D-A (471))
29 F61455L00CP THERMAL CUTOUT 1105°C
30 F66264W00AP THERMAL CUTOUT INSULATION
BRACKET
1
31 F61785U30XN MICRO SWITCH 1(SHORT SWITCH) (KW3-0T-A (375))
32 A606Y5X00AP H.V.INVERTER (U) 1
33 F65855X00AP INVERTER BRACKET 1 T*** APH
33 F65855W00AP INVERTER BRACKET 1T*** CPH, S*** APH/CPH
34 2M261-M32F MAGNETRON 1 APH
34 2M261-M32G MAGNETRON 1 CPH
35 B62308250AP FUSE 1 18A/120V, 60Hz
36 F62315G10XN FUSE HOLDER 1 APH
37 F63265G60AP TURNTABLE MOTOR 1
38 F900C4T60CP AC CORD W/PLUG 1 T*** APH
10
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

Ref. No. Part No. Part Name & Description Pcs/Set Remarks
38 F900C4T00AP AC CORD W/PLUG 1 S*** APH
38 F900C4W10CP AC CORD W/PLUG 1 CPH
39 F66625X00AP GROUNDING PLATE 1
40 XTWFA4+12T SCREW 4FOR MAGNETRON
41 F90804W00AP CANOE CLIP 1FOR COVER
42 XTTAFE4T12A0 SCREW 5FOR CABINET BODY
43 XTTFA4+8BFZ SCREW 2FOR CABINET BODY SIDE (S***BF APH/CPH)
43 XTTFA4+8BCR SCREW 2FOR CABINET BODY SIDE (T***SF APH/CPH, S***WF
APH/CPH)
44 J692Y4T00CP NOISE FILTER 1 CPH
45 F03345W20AP MENU LABEL 1T*** APH, S763BF/WF APH
45 F03345Y40AP MENU LABEL 1S753BF/WF APH
7 ESCUTCHEON BASE ASSEMBLY (NN-S*** APH/CPH)
Ref. No. Part No. Part Name & Description Pcs/Set Remarks
E1 F603L5X20AP D.P.CIRCUIT 1RTL (W/COMPONENT) S763BF/WF APH
E1 F603L5X30AP D.P.CIRCUIT 1RTL (W/COMPONENT) S753BF/WF APH
E1 F603L5X40AP D.P.CIRCUIT 1RTL (W/COMPONENT) S743BF/WF APH
E1 F603L5X20CP D.P.CIRCUIT 1RTL (W/COMPONENT) S763BF/WF CPH
E1 F603L5X30CP D.P.CIRCUIT 1RTL (W/COMPONENT) S753WF CPH
E3 F630Y5X20BAP MEMBRANE SWITCH (U) 1S763BF APH
E3 F630Y5X20HAP MEMBRANE SWITCH (U) 1S763WF APH
E3 F630Y5X30BAP MEMBRANE SWITCH (U) 1S753BF APH
E3 F630Y5X30HAP MEMBRANE SWITCH (U) 1S753WF APH
E3 F630Y5X40BAP MEMBRANE SWITCH (U) 1S743BF APH
E3 F630Y5X40HAP MEMBRANE SWITCH (U) 1S743WF APH
E3 F630Y5X20BCP MEMBRANE SWITCH (U) 1S763BF CPH
E3 F630Y5X20HCP MEMBRANE SWITCH (U) 1S763WF CPH
E3 F630Y5X30HCP MEMBRANE SWITCH (U) 1S753WF CPH
E4 F80345K00BAP ESCUTCHEON BASE 1S763BF APH/CPH, S753BF APH, S743BF APH
E4 F80345K00HAP ESCUTCHEON BASE 1S763WF APH/CPH, S753WF APH/CPH, S743WF APH
E5 F80725K00BAP DOOR OPENING BUTTON 1S763BF APH/CPH, S753BF APH, S743BF APH
E5 F80725K00HAP DOOR OPENING BUTTON 1S763WF APH/CPH, S753WF APH/CPH, S743WF APH
E6 F80375K00AP COOK BUTTON SPRING 1
E7 F82564W00AP DOOR OPENING LEVEL 1
E8 F00075X20BCP NAME PLATE 1S763BF CPH
E8 F00075X20HCP NAME PLATE 1S763WF CPH
E8 F00075X30HCP NAME PLATE 1S753WF CPH
11
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

8 ESCUTCHEON BASE ASSEMBLY (NN-T*** APH/CPH)
Ref. No. Part No. Part Name & Description Pcs/Set Remarks
E10 F603L5X00AP D.P.CIRCUIT (AU) 1T793SF APH
E10 F603L5X70AP D.P.CIRCUIT (AU) 1T783SF APH, T763SF APH
E10 F603L5X00CP D.P.CIRCUIT (AU) 1T793SF CPH
E11 F800L4W70BAP CONTROL PANEL (AU) 1T783SF APH, T763SF APH
E12 F630Y5X10SAP MEMBRANE SWITCH (U) 1T783SF APH
E12 F630Y5X70SAP MEMBRANE SWITCH (U) 1T763SF APH
E13 F82565X00AP DOOR OPENING LEVEL 1T793SF APH/CPH
E13 F82564W00AP DOOR OPENING LEVEL 1T783SF APH, T763SF APH
E14 F81274W70AP BACK PANEL 1T783SF APH, T763SF APH
E15 F00075X00SCP NAME PLATE 1T793SF CPH
E16 F603M5W00AP D.P.CIRCUIT (BU) 1T793SF APH/CPH
E17 F603Y5W00AP D.P.CIRCUIT (DU) 1T793SF APH
E17 F603Y5W00CP D.P.CIRCUIT (DU) 1T793SF CPH
E18 F83375X00SAP MEMBRANE SHEET 1T793SF APH
E18 F83375X00SCP MEMBRANE SHEET 1T793SF CPH
E19 F800L5X00BAP CONTROL PANEL (AU) 1T793SF APH/CPH
E20 F82985X00AP BUTTON 1T793SF APH/CPH
E21 F90095X00AP GROUNDING PANEL 1T793SF APH/CPH
12
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

9 PACKING AND ACCESORIES
Ref. No. Part No. Part Name & Description Pcs/Set Remarks
P1 F00035X00AP INSTRUCTION MANUAL 1T793SF APH
P1 F00035X20AP INSTRUCTION MANUAL 1T783SF APH, T763SF APH, S763BF/WF APH
P1 F00035X30AP INSTRUCTION MANUAL 1S753BF/WF APH
P1 F00035Y70AP INSTRUCTION MANUAL 1S743BF/WF APH
P1 F00035X00CP INSTRUCTION MANUAL 1T793SF CPH
P1 F00035X20CP INSTRUCTION MANUAL 1S763BF/WF CPH
P1 F00035X30CP INSTRUCTION MANUAL 1S753WF CPH
P2 F01025X00SAP PACKING CASE, PAPER 1T793SF APH
P2 F01025X10SAP PACKING CASE, PAPER 1T783SF APH
P2 F01025X70SAP PACKING CASE, PAPER 1T763SF APH
P2 F01025X20BAP PACKING CASE, PAPER 1S763BF APH
P2 F01025X20HAP PACKING CASE, PAPER 1S763WF APH
P2 F01025X30BAP PACKING CASE, PAPER 1S753BF APH
P2 F01025X30HAP PACKING CASE, PAPER 1S753WF APH
P2 F01025X40BAP PACKING CASE, PAPER 1S743BF APH
P2 F01025X40HAP PACKING CASE, PAPER 1S743WF APH
P2 F01025X00SCP PACKING CASE, PAPER 1T793SF CPH
P2 F01025X20BCP PACKING CASE, PAPER 1S763BF CPH
P2 F01025X20HCP PACKING CASE, PAPER 1S763WF CPH
P2 F01025X30HCP PACKING CASE, PAPER 1S753WF CPH
P3 F01044W00AP UPPER FILLER 1T*** APH/CPH
P3 F01045J00AP UPPER FILLER 1S*** APH/CPH
P4 F01054W00AP LOWER FILLER 1T*** APH/CPH
P4 F01055J00AP LOWER FILLER 1S*** APH/CPH
P5 F01064W00AP P.E.BAG 1
P6 F01074W00AP DOOR SHEET 1
P7 B06014W00AP COOKING TRAY 1
P8 F01084W00AP TRAY PACKING 1
P9 F00065G40AP CAUTION LABEL 1
P12 F01924T00AP SHEET 1T***SF APH/CPH, S763BF APH/CPH, S753BF APH,
S743BF APH
13
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

10 DOOR ASSEMBLY
Ref. No. Part No. Part Name & Description Pcs/Set Remarks
D1 F3018-1200 DOOR KEY A 1
D2 F302A5X00SAP DOOR A (U) 1 T***SF APH/CPH
D2 F30015X20BAP DOOR A 1 S763BF APH/CPH, S753BF APH, S743BF APH
D3 F30015X20HAP DOOR A 1 S763WF APH/CPH, S753WF APH/CPH, S743WF APH
D3 F302K4W00AP DOOR E (U) 1
D4 F30215G10XN DOOR KEY SPRING 1
D5 F30854W00AP DOOR C 1
D6 F31454W00AP DOOR SCREEN A 1
D7 F31465X00SAP DOOR SCREEN B 1T793SF APH/CPH, T783SF APH
D7 F31465X70BAP DOOR SCREEN B 1T763SF APH
D7 F31465K00BAP DOOR SCREEN B 1S763BF APH/CPH, S753BF APH, S743BF APH
D7 F31465K00HAP DOOR SCREEN B 1S763WF APH/CPH, S753WF APH/CPH, S743WF APH
D8 F02459660AP DHHS LABEL 1 T*** APH
D8 F04114180CP DHHS LABEL 1 T*** CPH
11 WIRING MATERIALS
Ref. No. Part No. Part Name & Description Pcs/Set Remarks
W1 F030A4W00AP LEAD WIRE HARNESS 1 APH
W1 F030A4W10CP LEAD WIRE HARNESS 1 CPH
W2 F030E5K00AP H.V.LEAD WIRE 1 APH
W2 F030E4W00CP H.V.LEAD WIRE 1 CPH
14
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

12 DIGITAL PROGRAMMER CIRCUIT (NN-T793 APH/CPH)
SCHEMATIC DIAGRAM
15
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

16
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

13 DIGITAL PROGRAMMER CIRCUIT (NN-T783 APH,
NN-T763 APH)
SCHEMATIC DIAGRAM
17
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

18
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

14 DIGITAL PROGRAMMER CIRCUIT (NN-S763 APH/CPH,
NN-S753 CPH)
SCHEMATIC DIAGRAM
19
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF

20
NN-T793SF / NN-T783SF / NN-T763SF / NN-S763BF / NN-S763WF / NN-S753BF / NN-S753WF / NN-S743BF / NN-S743WF