Service Manual
Page 31
...DB927NB0 CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. D TRANS 2 ASSY (VSX-816 : XWZ4166) (VSX-916 : XWZ4092) IC853 AEK7019 (5A)(VSX-816) AEK7021 (7A)(VSX-916) 4321 R1252 NP 4.7 C1252 1/4W ACH 1237 C1251 R1251 ACH NP4.7 1237 1/4W STANDBY C1250 R1250 NP ... ONLY VSX-916 ONLY R1104 0 VSX-916 ONLY CN604 CKS3373 3 A-D POINT VOLTAGE (V) SITUATION /KU Others NO SIGNAL A.B C.D 67.0 61.4 38.6 39.5 P13 P12 (SBL) SBLO OL XPROTECT GNDU +12V FR/FL RY R/C RY SBL/SBR RY C 2/2 Q605,606,633,655,656,683, Q505: OVERLOAD DETECTOR Q696,697...
...DB927NB0 CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. D TRANS 2 ASSY (VSX-816 : XWZ4166) (VSX-916 : XWZ4092) IC853 AEK7019 (5A)(VSX-816) AEK7021 (7A)(VSX-916) 4321 R1252 NP 4.7 C1252 1/4W ACH 1237 C1251 R1251 ACH NP4.7 1237 1/4W STANDBY C1250 R1250 NP ... ONLY VSX-916 ONLY R1104 0 VSX-916 ONLY CN604 CKS3373 3 A-D POINT VOLTAGE (V) SITUATION /KU Others NO SIGNAL A.B C.D 67.0 61.4 38.6 39.5 P13 P12 (SBL) SBLO OL XPROTECT GNDU +12V FR/FL RY R/C RY SBL/SBR RY C 2/2 Q605,606,633,655,656,683, Q505: OVERLOAD DETECTOR Q696,697...
Service Manual
Page 112
... P43/A19 51 XM Common Select XM Signal Sw WakeUPB(XM) RDS FM+/XM RST RDS DT/XM LINK ACTIVE RDS CLK/XM LOWSPEED DSP OVERLOAD OL DET DC PROT VIDEO1 VIDEO2 VIDEO3 SW DET Comp VideoA Comp VideoB Comp Video INH GND EVR DT 5V EVR CLK LOW CONSUMPTION VIDEO4... DSP MODE DSP HREQ BUSY DSP SS DSP RST DSP CLK DSP DO DSP DI 232C CTS CLK RX(SR+/iPod) TX(SR+/iPod) F 112 VSX-816-K 1 2 3 4
... P43/A19 51 XM Common Select XM Signal Sw WakeUPB(XM) RDS FM+/XM RST RDS DT/XM LINK ACTIVE RDS CLK/XM LOWSPEED DSP OVERLOAD OL DET DC PROT VIDEO1 VIDEO2 VIDEO3 SW DET Comp VideoA Comp VideoB Comp Video INH GND EVR DT 5V EVR CLK LOW CONSUMPTION VIDEO4... DSP MODE DSP HREQ BUSY DSP SS DSP RST DSP CLK DSP DO DSP DI 232C CTS CLK RX(SR+/iPod) TX(SR+/iPod) F 112 VSX-816-K 1 2 3 4
Service Manual
Page 114
...,5.1Multich,speaker A+B(7ch model). VREF connects with VCC. HP DET I /O RDS power supply/XM reset. AVCC connects with VCC. H:Normal, L:Abnormal DSP OVERLOAD I/O ANALOG OVER LOAD detect (H : detect) RDS CLK/XM LOWSPEED I/O RDS clock in signal/XM Lowspeed RDS DT/Link ACTIVE(XM) I/O RDSdata in... F 99 AVcc 100 P97/ADTRG/SIN4 114 1 2 3 4 Pin Name I/O Pin Function NECK_SEL I /O Power supply abnormal condition detection. USDAO I /O Amplifier overload detection. 1 • Pin Function A No. H:Normal, L:Abnormal OL DET I /O data input from USB VSX-816-K 2 3 4
...,5.1Multich,speaker A+B(7ch model). VREF connects with VCC. HP DET I /O RDS power supply/XM reset. AVCC connects with VCC. H:Normal, L:Abnormal DSP OVERLOAD I/O ANALOG OVER LOAD detect (H : detect) RDS CLK/XM LOWSPEED I/O RDS clock in signal/XM Lowspeed RDS DT/Link ACTIVE(XM) I/O RDSdata in... F 99 AVcc 100 P97/ADTRG/SIN4 114 1 2 3 4 Pin Name I/O Pin Function NECK_SEL I /O Power supply abnormal condition detection. USDAO I /O Amplifier overload detection. 1 • Pin Function A No. H:Normal, L:Abnormal OL DET I /O data input from USB VSX-816-K 2 3 4
Service Manual
Page 127
...5V R726 Q253 MAIN ASSY OL DT Normal : +5 V FAN abnormal STOP : 0 V IC9001 (U-P) Pin72 DC PROT VSX-816-K 5 6 7 E F 127 8 Overload Detection Circuit Diagram: Example of VSX-816/KUXJ/CA A R673 FL POWER PACK ASSY POWER AMP IC602(1/2) R626 FR IC601(1/2) D+5V MAIN ASSY R642 SL IC602... Detect : 0 V DC PROT B Q697 C696 C697 IC603(1/3) R694 SBL R696 IC603(2/3) SBR R788 IC603(2/3) C 2. DC Derection Circuit Diagram : Example of VSX-816/KUXJ/CA FRONT Channel MAIN ASSY POWER PACK ASSY POWER AMP IC802(1/2) 8pin FL R665 R669 OL DT Normal : +5 V OVER LOAD Detect : 0 V...
...5V R726 Q253 MAIN ASSY OL DT Normal : +5 V FAN abnormal STOP : 0 V IC9001 (U-P) Pin72 DC PROT VSX-816-K 5 6 7 E F 127 8 Overload Detection Circuit Diagram: Example of VSX-816/KUXJ/CA A R673 FL POWER PACK ASSY POWER AMP IC602(1/2) R626 FR IC601(1/2) D+5V MAIN ASSY R642 SL IC602... Detect : 0 V DC PROT B Q697 C696 C697 IC603(1/3) R694 SBL R696 IC603(2/3) SBR R788 IC603(2/3) C 2. DC Derection Circuit Diagram : Example of VSX-816/KUXJ/CA FRONT Channel MAIN ASSY POWER PACK ASSY POWER AMP IC802(1/2) 8pin FL R665 R669 OL DT Normal : +5 V OVER LOAD Detect : 0 V...
Service Manual
Page 129
...the "L" is turned off even if the unit recovers. E F VSX-816-K 129 5 6 7 8 A If there is a fault in the power amplifier or a high-level signal lower than 5 Hz is performed preferentially to overload detection. In the case of a line and the service can be... B ↓ The abnormality continues for 3 seconds. ↓ Continues. ↓ Recovery The power is shut off , then D "OVERLOAD" flashes on . DC-abnormality detection DC detection is detected, the OL_DET port becomes "L". 5 6 7 8 7.3.2 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION 1.
...the "L" is turned off even if the unit recovers. E F VSX-816-K 129 5 6 7 8 A If there is a fault in the power amplifier or a high-level signal lower than 5 Hz is performed preferentially to overload detection. In the case of a line and the service can be... B ↓ The abnormality continues for 3 seconds. ↓ Continues. ↓ Recovery The power is shut off , then D "OVERLOAD" flashes on . DC-abnormality detection DC detection is detected, the OL_DET port becomes "L". 5 6 7 8 7.3.2 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION 1.
Service Manual
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...off . B ↓ If micon detect XPROTECT = Low for 3 seconds. ↓ Continues. If Low level (ERROR) is carried out by DC detection) 130 VSX-816-K 1 2 3 4 POWER ON ↓ When 200 msec passed after Y sec Power key become effective. ← POWER LED continue to be on the display. ... control will not be on . When X+Y reach 60sec. ↓ POWER ON Then no more preferentially than DC abnormal detection and overload detection. Fan stop detection operation flow in the DC abnormality detection If the fan is shut off and shut down power supply immediately....
...off . B ↓ If micon detect XPROTECT = Low for 3 seconds. ↓ Continues. If Low level (ERROR) is carried out by DC detection) 130 VSX-816-K 1 2 3 4 POWER ON ↓ When 200 msec passed after Y sec Power key become effective. ← POWER LED continue to be on the display. ... control will not be on . When X+Y reach 60sec. ↓ POWER ON Then no more preferentially than DC abnormal detection and overload detection. Fan stop detection operation flow in the DC abnormality detection If the fan is shut off and shut down power supply immediately....