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Very helpfull information and I highly recommend this source for needed information about your products.
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More than pleased with my prurchase, very good product for the price.
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This is a good quality scan of the service manual which includes an assembly diagram, block diagram, schematic, and parts list. Exactly what is needed to repair my KR-V55R receiver.
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Excellent concise manual. All needed information was included. Typeface and diagrams were clear. Very fair price considering what others are charging. Many thanks
G) SET UP level adjustment circuit The circuit consisting of Q307 and RV302, or Q323 and RV313 sets SET UP level. SET UP level can be adjusted to specified level adjusting by RV302 or RV313. H) White clip level adjustment circuit The circuit consisting Q308, Q328 and RV309, or Q324, Q329 and RV314 sets white clip level. White clip level can be adjusted to specified level adjusting by RV309 or RV314. I) SYNC MIX circuit SYNC signal supplied from pin 14 of CN301 is adjusted of its level adjusting by RV310, mixing it to VIDEO output signal 1 passed through Q310 buffer amp. The other side, VIDEO output signal 1 passed through Q308 buffer amp, is adjusted to specified level adjusting by RV317, and sent it to pin 2 of CN302 then becomes output from the PR-257 board. SYNC signal is adjusted of its level adjusting by RV310, mixing it to VIDEO output 2 signal too passed through Q326 buffer amp. VIDEO output signal 2 passed through Q308 buffer amp, is adjusted to specified level adjusting by RV315, and sent it to pin 4 of CN302 then becomes output from the PR-257 board.
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XC-HR300 (SY) E
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