Pare de sucata eletrônica - corrigir sozinho

SPECIFICATIONS Power source.................13.2V(10.5V-16.0V allowable) DC Backup current..............................................1.2mA or less Grounding system........................................Negative type Dimensions(Chassis)..............178(W)x100(H)x158(D)mm (Grille) ....................347(W)x214(H)x75(D)mm Weight..........................................................................3.1kg Cassette player Tape................................Compact cassette tape(C30-C90) Tape speed ......4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.) Wow and flutter.................................0.2% or less(WRMS) Crosstalk ..........................................................40dB or less Stereo Separation.........................................30dB or more S/N .................................................................41dB or more Distortion.............................................................3% or less CD player System ...................................Compact disc Audio system Usable discs ..................................................Compact disc Signal format .....................Sampling frequency : 44.1kHz Number of guantization : 16;linear S/N .................................................................70dB or more Distortion..........................................................0.2% or less FM Tuner Frequency........................................87.75, 87.9–107.9 MHz S/N(MONO) ...................................................46dB or more Distortion(30% MOD.) .....................................1.5% or less IF interference ...............................................64dB or more Image interference........................................35dB or more Stereo Separation ..............................25dB or more(1kHz) AM Tuner Frequency ......................................................530–1710 kHz Selectivity .......................................20dB or more(±10kHz) S/N .................................................................42dB or more Distortion(30% MOD.) .....................................1.5% or less IF interference ...............................................40dB or more Image interference........................................45dB or more

This service manual should be used together with the following manual(s): CX-631 CRT1640 Cassette Mech. Module CX-890 CRT2376 CD Mech. Module CONTENTS 1. SAFETY INFORMATION ... 3 2. EXPLODED VIEWS AND PARTS LIST ... 14 4. PCB CONNECTION DIAGRAM ... 38 5. ELECTRICAL PARTS LIST ... 64 6. ADJUSTMENT ... 75 7. GENERAL INFORMATION ... 81 7.1 DIAGNOSIS ... 81 7.1.1 TEST MODE ... 81 7.1.2 SELF-DIAGNOSTIC FUNCTION ... 87 7.1.3 DISASSEMBLY ... 91 7.1.4 PCB LOCATIONS ... 97 7.1.5 CONNECTOR FUNCTION DESCRIPTION ..98 7.2 PARTS ... 99 7.2.1 IC ... 99 7.2.2 DISPLAY ... 103 7.3 EXPLANATION ... 104 7.3.1 SYSTEM BLOCK DIAGRAM ... 104 7.3.2 OPERATIONAL FLOW CHART ... 105 8. OPERATIONS AND SPECIFICATIONS ... 106