Sony tmr if 230 r service manual

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Ð 5 ÐÐ 6 Ð 2-2. SCHEMATIC DIAGRAM Note: ¥ All capacitors are in mF unless otherwise noted. pF: mmF 50 WV or less are not indicated except for electrolytics and tantalums. ¥ All resistors are in W and 1/4 W or less unless otherwise specified. ¥ % : indicates tolerance. ¥H: adjustment for repair. ¥ Power voltage is dc 9 V and fed with regulated dc power supply from external power voltage jack (J4). ¥ Voltages are dc with respect to ground under no-signal conditions. ¥ Voltages are taken with a VOM (Input impedance 10 MW). Voltage variations may be noted due to normal produc- tion tolerances.¥ Signal path. F: AUDIO J: RF r IC BLOCK DIAGRAM IC11 TA2061AF-EL 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 R-CH IN NF VREFL-CH IN AGC T/C AGC ON/OFF F0 ADJ (R) VCC L-CH OUT ADJ ON/OFF AUTO OFF T/C GND F0 ADJ (L) SURROUND ON/OFF R-CH OUT LEVEL DET. LEVEL DET. AGC MIX AMPAGC O.S.M.Lout = L + K - (L–R) Rout = R – K - (L–R) PRE EMPHASIS PRE EMPHASIS VCO VCO BUFFER BUFFER VREF TMR-IF130/IF230R