Onkyo K505TX free download

File name Onkyo-K505TX cass.pdf

K-505TX R SERVICE MANUAL Ref. No . 3675 052001 STEREO CASETTE DECK MODEL K-505TX STEREO CASSETTE TAPE DECK DOLBY NR CASSETTE LOADING MECHANISM REV. MODE STANDBY / ON ALBUM REC LEVEL STANDBY COUNTER RESET FADE K- 505X Silver models SUPP,SUPT SUDT 230V AC,50Hz 120V AC,60Hz SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBER APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. K-505TX SPECIFICATIONS Track format 4-tracks, 2-channels Erasing system AC erase Tape speed 4.8 cm/sec. Wow and flutter Power supply rating AC 230-240 V, 50 Hz AC 120 V, 60 Hz Power consumption 12 W (230-240 V, 50 Hz) 14 W (120 V, 60 Hz) Dimensions 205 mm Ч 76 mm Ч 278 mm (Width Ч Height Ч Depth) Weight 2.6 kg Specifications and external appearance are subject to change without notice as a result of product improvement. 0.1 % (WRMS) 0.2 % (DIN) Frequency response Metal position tape 30 to 15,000 Hz ± 3 dB High position tape 30 to 14,000 Hz ± 3 dB Normal position tape 30 to 13,000 Hz ± 3 dB Signal to noise ratio · 54 dB (metal position tape, Dolby NR off) · Noise reduction of 10 dB above 5 kHz and 5 dB at 1 kHz is possible with Dolby B NR. · Noise reduction of 20 dB at 5 kHz is possible with Dolby C NR. Input Jacks LINE IN: 2 Input sensitivity: 80 mV Input impedance: 50 kohms Output Jacks LINE OUT: 2 Standard output level: 500 mV Output load impedance: over 50 kohms Motors DC servo motor: 1 Heads REC/PB: Special Hard Permalloy: 1 Erase head: Ferrite: 1 SERVICE PROCEDURES 1. Replacing the fuse This symbol located near the fuses indicates that the fuse used is fast operating type. For continued protection against fire hazard, replace with same type fuse. For fuse rating refer to the marking adjacent to the symbol. Ce symbole indique que le fusible utlise est a rapide. Pour une protection permanente, n'untiliser que fusibles de meme type. Ce darnier est la qu le present symbol est appse. CIRCUIT NO. F901 PART NO. 252074 DESCRIPTION 2A-SE-EAK,Fuse K-505TX BLOCK DIAGRAM R/P HEAD R115.R116 P.B.AMP. P.B. LEVEL Q102 Q101 70/120 Q103.Q104 KEY CONTROL DOLBY NR. REC EQ. METER AMP Q201 DISPLAY Q709 IN LINE OUT BIAS OSC AND HX PRO Q401-Q405 L401.L402.L403 ERASE HEAD MICROPROCESSOR Q701 POWER TRANSFORMER AND REGULATOR 12V(for SIGNAL) T901 Q901 12V(for MECHA) D901.D902 Q903 5V (for MICROPROCESSOR) Q905 S717 AUTO ADJUSTMENT START KEY MECHA AND DRIVER TAPE SPEED R716 -22V(for F.L. TUBE) D905.D906 Q906 K-505TX EXPLODED VIEW P902A P101 U2 U3 P703 U6 P702 F901 T901 U4 U1 U5 P705 Z001 K-505TX PARTS LIST REF.NO.PART NO. DESCRIPTION Chassis 1 27100334A Leg 2 27175323 Leg 3 27175325 3TTB+8B.Self tapping screw 4 838130088 KGLS-3S.Holder 5 27190