Service Manual
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...RY501 XSR3009 *4 D758 D757 *4 D752 D751 RY751 XSR3009 *4 D754 D753 W801 TYPE NO. 491010 FOR IC604, IC605, IC606, IC607, IC608 AND *3 VSX-915 VSX-815/KUXJ/CA W802 IC609 MFD, BY LITTELFUSE INC. Rated power:1/4W unless otherwise noted. Rated Voltage:50V except for electrolytic capacitors. F •... 8 FR 7 SL 6 SR 5 C4 SBR 3 SB/ 2 SBL GAMP 1 GNDU +12V SP-A R/C SP SBL/R/SP-B Q605,606,633,655,656,683, 2.CAPACITORS C 2/2 Q505: OVERLOAD DETECTOR Q696,697: ( ) DC OUTPUT DETECTOR CN604 52045-0845 Unit: p-pF or µF unless otherwise noted. ICP-N10 FOR IC701 AND IC702 A MFD, BY ROHM...
...RY501 XSR3009 *4 D758 D757 *4 D752 D751 RY751 XSR3009 *4 D754 D753 W801 TYPE NO. 491010 FOR IC604, IC605, IC606, IC607, IC608 AND *3 VSX-915 VSX-815/KUXJ/CA W802 IC609 MFD, BY LITTELFUSE INC. Rated power:1/4W unless otherwise noted. Rated Voltage:50V except for electrolytic capacitors. F •... 8 FR 7 SL 6 SR 5 C4 SBR 3 SB/ 2 SBL GAMP 1 GNDU +12V SP-A R/C SP SBL/R/SP-B Q605,606,633,655,656,683, 2.CAPACITORS C 2/2 Q505: OVERLOAD DETECTOR Q696,697: ( ) DC OUTPUT DETECTOR CN604 52045-0845 Unit: p-pF or µF unless otherwise noted. ICP-N10 FOR IC701 AND IC702 A MFD, BY ROHM...
Service Manual
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... terminal control 4053A I/O Component terminal control NC I/O SWDET I/O SWSP detect VIDEO3 I/O SWSP detect VIDEO2 I/O SWSP detect C VIDEO1 I/O NJM2296 control (VIDEO input select) OL DET I/O Detect overload of AMP NC I/O RDS CLK I/O Clock input signal for RDS module DT I/O Data input signal for RDS module FM+ I/O Power ON/OFF of RDS decoder... contorol D TUNER CLK I/O Clock signal for tuner contorol TUNER DI I/O Data output signal for tuner contorol TUNER CE I/O Chip select signal for tuner contorol 6 OHM I /O F VSX-815-K 6 7 67 8
... terminal control 4053A I/O Component terminal control NC I/O SWDET I/O SWSP detect VIDEO3 I/O SWSP detect VIDEO2 I/O SWSP detect C VIDEO1 I/O NJM2296 control (VIDEO input select) OL DET I/O Detect overload of AMP NC I/O RDS CLK I/O Clock input signal for RDS module DT I/O Data input signal for RDS module FM+ I/O Power ON/OFF of RDS decoder... contorol D TUNER CLK I/O Clock signal for tuner contorol TUNER DI I/O Data output signal for tuner contorol TUNER CE I/O Chip select signal for tuner contorol 6 OHM I /O F VSX-815-K 6 7 67 8
Service Manual
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7.3 EXPLANATION 5 7.3.1 POWER ON AND OFF INITIAL TIMING CHART POWER ON INITIAL TIMING CHART 5 6 6 VSX-815-K AC relay (port) A.MUTE (port) FUNCTION SW (BD3841FS) VIDEO system (NJM2595) TUNER (LC72131) E-VOLUME DSP (DSP*56371) DIR (AK4114VQ) CODEC (AK4628) SPEKER relay SW DETECT OVERLOAD 0 60 200 400 600 800 1000 1040 1080 1180 1360 1500 1800...
7.3 EXPLANATION 5 7.3.1 POWER ON AND OFF INITIAL TIMING CHART POWER ON INITIAL TIMING CHART 5 6 6 VSX-815-K AC relay (port) A.MUTE (port) FUNCTION SW (BD3841FS) VIDEO system (NJM2595) TUNER (LC72131) E-VOLUME DSP (DSP*56371) DIR (AK4114VQ) CODEC (AK4628) SPEKER relay SW DETECT OVERLOAD 0 60 200 400 600 800 1000 1040 1080 1180 1360 1500 1800...
Service Manual
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...,DIR CDC RST | port51,45pin,DIR DO ) ( port46,48pin,DIR CDC RST | port51,45pin,DIR DO ) ( port36,56pin,RY_A | port37,55pin,RY_C/R | port40,54pin,RY_B) OVERLOAD D AMP ERROR DETECT BOARD ERROR DETECT E F 72...
...,DIR CDC RST | port51,45pin,DIR DO ) ( port46,48pin,DIR CDC RST | port51,45pin,DIR DO ) ( port36,56pin,RY_A | port37,55pin,RY_C/R | port40,54pin,RY_B) OVERLOAD D AMP ERROR DETECT BOARD ERROR DETECT E F 72...
Service Manual
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8 A B C D E F 73 8 7 6 5 VSX-815-K IC data transmission timing chart 1.When function chage 0 A.MUTE (po)r t "L" (mute) E-volume (BD3812,13) Mute data gain port (port) Now data function SW (BD3841) ... (system mute & E-volume mute) 1) when tuner mute during Tuner function 2) when communicate to DSP 3) when initial processing 4) when detect trouble of AMP DC 5) when detect overload of AMP 6) when Power off 7) when muting by key input 100ms pass 400ms pass 480ms pass ~ 500ms ~ "L"or"H" New data (when mute cancel condition) New...
8 A B C D E F 73 8 7 6 5 VSX-815-K IC data transmission timing chart 1.When function chage 0 A.MUTE (po)r t "L" (mute) E-volume (BD3812,13) Mute data gain port (port) Now data function SW (BD3841) ... (system mute & E-volume mute) 1) when tuner mute during Tuner function 2) when communicate to DSP 3) when initial processing 4) when detect trouble of AMP DC 5) when detect overload of AMP 6) when Power off 7) when muting by key input 100ms pass 400ms pass 480ms pass ~ 500ms ~ "L"or"H" New data (when mute cancel condition) New...
Service Manual
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4 3 2 1 VSX-815-K 74 F D E 2.When except function chage 0 A.MUTE (port) "L"(mute) E-volume (BD3812,13) Mute data gain port (port) Now data speaker relay (port) Now data biamp ... (system mute & E-volume mute) 1) when tuner mute during Tuner function 2) when communicate to DSP 3) when initial processing 4) when detect trouble of AMP DC 5) when detect overload of AMP 6) when Power off 7) when muting by key input 60ms pass New data New data New data C 80ms pass 100ms pass "L"or"H" New data...
4 3 2 1 VSX-815-K 74 F D E 2.When except function chage 0 A.MUTE (port) "L"(mute) E-volume (BD3812,13) Mute data gain port (port) Now data speaker relay (port) Now data biamp ... (system mute & E-volume mute) 1) when tuner mute during Tuner function 2) when communicate to DSP 3) when initial processing 4) when detect trouble of AMP DC 5) when detect overload of AMP 6) when Power off 7) when muting by key input 60ms pass New data New data New data C 80ms pass 100ms pass "L"or"H" New data...
Service Manual
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Overload Detection Circuit Diagram: IC601, IC602 Q605, Q606, Q633, Q683 Q655, Q656 O.L. Fan Stop Q253 Fan Fan - PCB Board Protection Circuit Diagram E A Main Assy +5V u-con IC9001 R G Amp Input Assy C Amp & Primary Assy Amp Speaker Pin 24 F 76 VSX-815-K 1 2 3 4 R265 Fan + -12V +12V 4. Fan Stop Prottection Circuit Diagram: +5V u-con IC9001 DC...
Overload Detection Circuit Diagram: IC601, IC602 Q605, Q606, Q633, Q683 Q655, Q656 O.L. Fan Stop Q253 Fan Fan - PCB Board Protection Circuit Diagram E A Main Assy +5V u-con IC9001 R G Amp Input Assy C Amp & Primary Assy Amp Speaker Pin 24 F 76 VSX-815-K 1 2 3 4 R265 Fan + -12V +12V 4. Fan Stop Prottection Circuit Diagram: +5V u-con IC9001 DC...
Service Manual
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... the service can be carried out, power can be on. (If don't push these key, need to overload detection. B ↓ Recovery The power is shut off , then D "OVERLOAD" flashes on , speaker relay is turned on the display. ↓ The abnormality continues for 3 seconds. ... ↓ The abnormality continues for 3 seconds. ↓ Continues. E F VSX-815-K 77 5 6 7 8 When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is input, the DC_DET port becomes "L". Overload detection If the speaker terminals are pushed so that the key input of simultaneous ...
... the service can be carried out, power can be on. (If don't push these key, need to overload detection. B ↓ Recovery The power is shut off , then D "OVERLOAD" flashes on , speaker relay is turned on the display. ↓ The abnormality continues for 3 seconds. ... ↓ The abnormality continues for 3 seconds. ↓ Continues. E F VSX-815-K 77 5 6 7 8 When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is input, the DC_DET port becomes "L". Overload detection If the speaker terminals are pushed so that the key input of simultaneous ...
Service Manual
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...key input of fan is detected, A.MUTE* is turned on, speaker relay is carried out by DC detection) E F 78 VSX-815-K 1 2 3 4 Then an abnormality of simultaneous detection with the overload protection circuit, Board detection is forcibly stopped, the 'DC PROT' port becomes "L". When an abnormality of a line and the .... The program restarts. ↓ The power key is detected. Board detection If the board connection from Main Ass'y to DC-abnormality detection and Overload detection. If the "H" is interrupted, A the BOARD_DET port becomes "H". 1 2 3 4 3.
...key input of fan is detected, A.MUTE* is turned on, speaker relay is carried out by DC detection) E F 78 VSX-815-K 1 2 3 4 Then an abnormality of simultaneous detection with the overload protection circuit, Board detection is forcibly stopped, the 'DC PROT' port becomes "L". When an abnormality of a line and the .... The program restarts. ↓ The power key is detected. Board detection If the board connection from Main Ass'y to DC-abnormality detection and Overload detection. If the "H" is interrupted, A the BOARD_DET port becomes "H". 1 2 3 4 3.