SONY XC-HR300
Manual de Servicio

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