Yamaha rxv 795a
This is the 9 pages manual for yamaha rxv 795a.
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Page 1
RX-V795a/RDS/HTR-5170/DSP-R795a ABCDE FGH I J K 1 2 3 4 5 6 7 8 SCHEMATIC DIAGRAM (INPUT) E-66/J-56 * All voltage are measured with a 10M Ω/DC electric volt meter. * Components having special characteristics are marked Zand must be replaced with parts having specifications equal to those originally installed. * Schematic diagram is subject to change without notice. INPUT (This waveform is not available by pushing the power switch ON and OFF.) Disconnect the power cord from the AC outlet. With the POWER ON, dis- connect the A/C power cord. Reconnect the A/C power cord and the above wave- forms will start. 0V Pointe (Pin3 of IC21) V : 2V/div H : 50 nsec/div DC range 1 : 1 probe Pointr CH1 : Pin1 of IC21 CH2 : Pin29 of IC21 H : 0.5 sec/div DC range 1 : 1 probeV : 2V/div (CH1) V : 2V/div (CH2) FRONT L REAR R MAIN L MAIN LCENTER 43 4 00 0 04.9 11.3-11.5 11.6 11.6 0 0 0 0 0 -11.5 11.6 11.6 0 0 0 0 0 -11.5 4.7 2.04.8 4.9 4.90 0 4.90 0 4.9 4.90 4.80 4.9 00 1.2 0 0.3 0 0.2 0.7 -11.4 0 011.2 0 0 0 0 0 0 00 0 00 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 11.6 0 0 00 00 0 0 0 0 000 0 0 0 0 0 00 00 00 00 0 0 0 000 0 0 0 0 0 -22.20.1 0.1 0.10 0 0 0 0.3 0.3 021.8 0 00 0 0 0 000 21.8 0 00 0 -22.2 0 0 0 0 0 -22.2 0 -11.5 0 -11.10 4.9 0 0 4.9 0 0.3 0 4.9 0 0 4.9 04.9 0.1 4.9 4.9 4.9 01.2 0.3 1.4 0 4.9 4.5 2.2 4.7 4.9 4.9 4.7 4.9 4.9 0 0 0 0 4.9 4.9 0 4.9 4.9 04.9 4.9 4.9 0 0 0 0 0 4.9 4.9 0 0 4.9 4.9 4.5 4.94.7 4.9 11.6 11.6 0 0 0 0 0 PHONO MM EQ AMP INPUT SELECTOR TAPE MONITOR P-E69/J59 TO VIDEO(1) C-2 P-E67/J67 D-8 P-E65/J55 B-8 P-E68/J58 H-2 P-E71/J61 : NOT USED : USED CIRCUIT CHANGES BY MARKET. A-5 P-E69/J59 A-5 P-E69/J59 I-3 P-E65/J55 J-4 P-E72/J62 (J,U,C,A,L,R,T models) P-E73 (B,G models) H-5 8 1 3 2 6 5 47 5 68 7 2 3 41 1 7 45 6 83 22 3 65 7 8 41 5 32 1 8 6 47 3 6 5 47 2 1 8 IC21
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RX-V795a/RDS/HTR-5170/DSP-R795a ABCDE FGH I J K L 1 2 3 4 5 6 7 8 INPUT & VIDEO SCHEMATIC DIAGRAM (INPUT & VIDEO) * All voltage are measured with a 10M Ω/DC electric volt meter. * Components having special characteristics are marked Zand must be replaced with parts having specifications equal to those originally installed. * Schematic diagram is subject to change without notice. E-67/J-57 IC17 : LC78211 Analog Function Switch IC11 : NJM2068MD IC12, 20 : µPC4570G2 IC13, 15, 16 : M5220FP Dual OP Amp IC18 : LC78213 Analog Function Switch IC19 : LC78212 Analog Function SwitchIC402~404, 407, 408 : LA7956 Video Switch IC401 : TC4053BP Triple 2-Channel Analog Multiplexers/ Demultiplexers Other ICs IC21 : HD6433397A97F→ See page E-36/J-30 IC406 : LC74781-9626→ See page E-35/J-29 IC405 : µPD4066BC Quad Analog Switch/Multiplexer 16VDD LOGIC LEVEL CONVERTER 12OX 7VEE 6INH OUT C IN 13IX OUT C IN 2OY OUT C IN 1IY OUT C IN 5OZ OUT C IN 3IZ OUT C IN 4Z-COMMON15 14X-COMMON Y-COMMON 9C10B11A 8VSS REAR L CENTER 5.0 5.7 5.6 5.6 11.1 0 0 11.1 0 0 5.0 0 0.11.11.8 0.7 00 8.88.8 9.3 9.39.8 0 0 9.8 0 0.5 0.5 1.1 2.7 2.7 2.7 3.4 0.1 0.311.1 1.52.12.5 2.5 0.5 0.50 5.0 0 4.4 4.9 1.9 1.1 4.3 4.35.0 1.1000 2.5 0 11.1 3.8 3.83.8 5.3 3.8 3.8 3.85.30 11.5 11.3 11.1 0 11.5 11.3 0 0 11.1 11.3 3.8 3.8 11.1 3.8 0 3.8 11.5 11.3 5.6 2.40 5.0 5.0 5.0 0 5.0 0 2.0 5.0 1.1 0 1.1 2.5 0 0.1 2.4 2.4 4.9 4.9 0 5.011.1 3.8 0 3.8 11.5 11.3 5.711.1 3.8 0 3.8 11.5 11.3 5.7 1.1 1.52.2 1.0 0 0.5 0.5 5.0 5.0 0 0 011.1 5.6 5.6 11.1 11.5 0 5.0 11.1 5.7 0 11.1 5.60.7 0.7 0.7 023.8 23.8 0.7 0.7 1.3 AC12.6 SUB POWER SUPPLY S-VIDEO AMP & SELECTOR SUPERIMPOSE REGULATOR SYNC SIGNAL DETECTORSPEAKER RELAY DRIVE P-E66/J56 D-8 P-E69/J59 I-2 P-E70/J60 I-6 TO MAIN (1) TO MAIN (5) P-E68/J58 A-1 P-E71/J61 TO MAIN (2) G-2 P-E70/J60 TO MAIN (1) I-5 CIRCUIT CHANGES BY MARKET. : NOT USED : USED IC406