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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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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
MODEL: WT-42311 / WT-A42
ANODE LEAD REMOVAL
CAUTION: To prevent damage, the following procedure must be used when removing an Anode Lead from the Flyback Transformer.
1) Push the Anode Lead down.
2) While holding the lead down rotate the lead 90º counter clockwise.
3) Carefully remove the Anode Lead from the Flyback Transformer.
CRT REPLACEMENT
1. Removal of the CRT
Caution! High voltage should be completely discharged prior to CRT removal. Since the CRTs receive high voltage from the Flyback transformer, discharge the CRTs by shorting the open end of the respective high voltage cable to chassis ground.
1. Refer to Cabinet Disassembly and remove the Light Box Assembly. 2. Remove the three Anode Lead Wires from the Flyback transformer and discharge the CRTs. (Use the above procedure) 3. Unplug the three PCB-CRTs. 4. Remove 4 screws "a" retaining the Optical Unit. [Figure 1] 5. Remove 4 screws "b" retaining the Lens of the respective CRT 6. Lift the Optical Unit from the Light Box and set it lens down on a flat surface. 7. Remove 4 screws "c" retaining the CRT. [Figure 2] Note: DO NOT loosen the spring loaded screws. Doing so will break the seal between the C-Element and the # 6 Lens, causing leakage of the CRT Coolant. 8. Remove the Deflection Yoke from the neck of the CRT. [Figure 3]
Figure 1 Page 12
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