POWER AMPLIFIER KAC-819 SERVICE MANUAL 2001-1 PRINTED IN JAPAN B51-7691-00 (4) 3376 Heat sink (F01-1655-01) Accessory Screw set (W01-1515-05) (N99-1587-05)
KAC-819 CIRCUIT DESCRIPTION SP P-CON Switching Circuit When the SP output from the head unit is connected to SP IN, the power can be switched ON/OFF based on the DC voltage of the SP output. However, As certain haed unit models output DC permanently or generate a click during switching OFF, it is required to provide the capability of previous P-CON switching.
PC BOARD (Component side view) PC BOARD (Foil side view) AUDIO UNIT (X09-5360-10) AUDIO UNIT (X09-5360-10) X09-5360-10 A/4 X09-5360-10 A/4 (J74-1030-21) (J74-1030-21) (X09-5360-10) (X09-5360-10) Ref. No. Address Ref. No. Address R102 R102 R101 R101 R110 R110 R165 R165 R164 R104 R164 R104 R187...
Page 4
DETECTION CONTROL R168 (X09- ) (D/4) D101 KAC-819 CAUTION: For continued safety, replace safety critical components only with •DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual manufacturer's recommended parts (refer to parts list).
KAC-819 PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. Des- Des- Ref. No. Parts No. Description Ref. No.
Page 7
KAC-819 PARTS LIST ∗ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. Des- Des- Ref. No. Parts No. Description Ref. No.
KAC-819 SPECIFICATIONS Audio Section Max Power Ouput (4Ω) ..................300W Max Power Ouput (2Ω) ..................450W Rated Power Output (4Ω) (20Hz ~ 200Hz, 0.08% THD) ............... 150W (DIN45324, +B =14.4V) ................150W Rated Power Output (2Ω) (100Hz, 0.8% THD) ..................230W Signal to Noise Ratio ..................