JVC MX-KA3 Service Manual

MX-KA3
1-5
Disassembly method
Commence disassembly of the set by removing the main units and then proceed to the components
and assemblies inside the units.
Replacement of the fuses and the power IC
 Top cover
 CD changer unit
 Front panel assembly
 Chassis unit
 CD changer unit
 Removing the main PCB
 Removing the CD changer mechanism assembly
 Removing the CD pickup
 Replacing the loading motor and belt of the CD changer tray
 Replacing the CD tray rotor belt of CD changer, and removing the motor
 Front panel assembly
 Removing the cassette deck mechanism
 Removing the earphone jack PCB
 Removing the control/FL PCB
 Removing the switch PCB and ACTIVE BASS EX. switch PCB
 Removing the cassette deck main motor, and replacing the main belts
 Removing the leaf switches of the cassette deck mechanism
 Removing the cassette deck heads
 Chassis unit
 Removing the 3-pin regulator
 Removing the power amp and supply PCB and the Power Trans PCB
 Removing the sub power PCB

JVC MX-KA3 Specifications

General

Output Power	80 W per channel
Input Sensitivity/Impedance	300 mV/50 kΩ
Frequency Response	63 Hz - 12, 500 Hz
Wow And Flutter	0.15% (WRMS)
CD Capacity	3 CDs
Dynamic Range	85 dB
Signal-To-Noise Ratio	85 dB
FM Tuner Tuning Range	87.5 MHz - 108.0 MHz
AM Tuner Tuning Range	530 kHz - 1, 710 kHz
Dimensions	267 mm x 305 mm x 433 mm
Mass	7.5 kg
Type	3-way bass-reflex type
Woofer	13.5 cm cone
Mid	5 cm cone
Tweeter	2 cm dome
Power Handling Capacity	80 W
Impedance	6 Ω
Frequency Range	45 Hz - 22, 000 Hz
Sound pressure level	89 dB/W.m
Dimensions	228 mm x 316 mm x 258 mm
Mass	3.1 kg
Power Requirements	AC 120 V, 60 Hz
Power Consumption	125 W (power on mode)
Power Consumption in Standby Mode	17 W