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Merrychef 402s Service & Parts Manual
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52
402s Ovens Part. N
o.
32Z3539 Issue 5
PCB Visual Check
Hardware fitted
against PCB visual
Supports
Oven
Upgrade
to V3
Allowable
Version /
Firmw
are
SSR
Mag
Detect
ON V2.5
ovens
4.4SD
ON V3
ovens
3.0LD
or higher
ONLY ON
V3
ovens
3.0LD
or higher
SSR lead
Fibre Optics Board + leads fitted
SSR w
ould be
fitted if lead is
present on PCB
Optics
board fitted
Blue jumper
fitted
Revision 3
TABLE 2b: Har
dware Upgrade
Hardw
are Upg
rade
Technical Bulletin
Required
V2
oven
V2.5
oven
V3
oven
Adding Magnetron Dete
ct
TB11
4
TB
114
Adding Solid State Relay
TB12
2
TB122
TABLE 2A
51
53
Table of Contents
Table of Contents
2
Safety Code
3
Product Specifications
4
Installation Instructions
5
Main Features
6
Electronic Control Panel
7
Main Features Control Panel Version 2.0
7
Main Features Control Panel Version 3.0
8
Principal Components: RHS
9
Principal Components: LHS
10
Principal Components: Control Box
11
Principal Components: Back View
12
Principal Components: Power Supply
13
Principal Components: Cavity Parts & KFC Accessories
14
Principal Components: External Panels & Parts
15
Principal Components: Electronic Control Panel Assembly
16
Parts Matrix
17
Procedure for Power Output Measurement
19
High Voltage Capacitor Test
20
Power Transformer Test
20
Procedures for Principal Component Tests
20
High Voltage Rectifier Test
21
Magnetron Test
21
Procedure for Door Interlock Adjustment
22
Procedure for Door Interlock Adjustment and Test
23
Hot Air Motor and Controller
25
Circuit Diagram
27
Troubleshooting Guide
35
Appendix 1: Temperature Sensor Resistance Data
40
Appendix 2: Menukey Download Procedure V2.0
41
Menukey Download Procedure V3.0
42
Appendix 3: Cool down & Cleaning Procedure
43
Appendix 4: Recommended Spares List
46
Logic Pcb Connection Points/Key Features
47
Fibre Optic Magnetron Detection
47
Appendix 5: PCB Connection Points
47
Appendix 6: Firmware Revision Guide
49
Appendix 7: Electrical Installation Guide
55
Manual Corrections and Modifications
56
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Merrychef 402s Specifications
General
Brand
Merrychef
Model
402s
Category
Microwave Oven
Language
English
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