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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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I will definitely be back for more information when I need it.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
OPERATING SEQUENCE
OFF CONDITION
Closing the door activates all door interlock switches (monitored latch switch and latch switch). IMPORTANT When the timer knob is at "0" the oven is in the OFF condition.
HIGH, MEDIUM HIGH, MEDIUM, MEDIUM LOW, LOW COOKING
When the microwave oven is preset for variable cooking power, the line voltage is supplied to the power transformer intermittently within a 26-second time base through the relay contact which is coupled with the current-limiting relay (RY2). The following levels of microwave power are given. SETTING
26 sec. ON HIGH 20 sec. ON MEDIUM HIGH 14 sec. ON MEDIUM 8 sec. ON MEDIUM LOW 4 sec. ON LOW 22 sec. OFF Approx. 10% = 80 Watts 18 sec. OFF Approx. 30% = 240 Watts 12 sec. OFF Approx. 50% = 400 Watts 6 sec. OFF Approx. 70% = 560 Watts Approx. 100% = 800 Watts
NOTE: The ON/OFF time ratio does not exactly correspond to the percentage of microwave power, because approx. 3 seconds are needed for heating up the magnetron filament.
DOOR SWITCHES
DOOR OPEN MECHANISM
MONITORED LATCH SWITCH (SW1) LATCH SWITCH (SW3) 1. When the oven door is closed, the contacts (COM - NO) must be closed. 2. When the oven door is opened, the contacts (COM NO) must be opened.
SW1: MONITORED LATCH SWITCH SW2: MONITOR LATCH HEADS SWITCH SW3: LATCH SWITCH
LATCH HOOK
DOOR
MONITOR SWITCH (SW2) 1. When the oven door is closed, the contacts (COM - NC) must be opened. 2. When the oven door is opened, the contacts (COM NC) must be closed. 3. If the oven door is opened and the contacts (COM - NO) of the monitored latch switch (SW1) fail to open, the fuse M8A blows simultaneously with closing the contacts (COM - NC) of the monitor switch (SW2). CAUTION: BEFORE REPLACING A BLOWN FUSE (F) M8A TEST THE MONITORED LATCH SWITCH (SW1), + MONITOR SWITCH (SW2) FOR PROPER OPERATION.
DOOR OPEN BUTTON
OPEN LEVER
Figure D-1. Door Open Mechanism
R-201M - 4
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