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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
1-4. Name and Functions of Switches and LEDs
S1-3 : Field frequency selection switch When switch S1-4 is selected to MANUAL, this switch is selected the field frequency. Upper : 60.00 Hz Lower : 59.94 Hz Factory setting: 59.94 Hz n When switch S1-4 is selected to AUTO, this switch is not operated even if its setting is changed. S1-4 : Field frequency mode selection switch This switch is selected the field frequency. Upper : MANUAL Lower : AUTO Factory setting : AUTO S1-5 and S1-6 : Option switches These switches are not usually used. Factory settings : All lower (OFF) positions S1-7 : AUDIO CHANNEL SELECT switch This switch is selected the channels 1 to 4 or the channels 5 to 8 of the providing audio signal. Upper : Channels 5 to 8 Lower : Channels 1 to 4 Factory setting : Channels 1 to 4 S1-8 : AUDIO DELAY selection switch The offset of the 1 frame (33.3 msec) is added to the delay amount. Upper : ON Lower : OFF Factory setting : Lower (OFF) S2 : AUDIO DELAY selection switch The delay amount (0 to 9) is changed the unit of 16 samples (333.3 usec). When this switch is selected A to F, the delay amount is fixed 157 samples (3.27 msec). When this switch is selected to 9 and S3 switch is selected D to F, the delay amount is fixed 157 samples (3.27 msec). Factory setting : 0
S3 : AUDIO DELAY selection switch The delay amount (O to F) is changed the unit of 1 sample (20.8 usec). Factory setting : O n A combination of S1-8, S2 and S3 switches, the delay amount of the digital audio signal on the video signal is selected 158 samples + 1 frame maximum. S4 : CPU reset switch This switch is initialized CPU. It is not usually used.
HKPF-105
1-5 (E)
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