JVC MX-KA3 Service Manual

MX-KA3
1-6
<Disassembly of the main blocks of the set>
Replacement of the fuses and the power IC
 Replacing the fuses (See Fig.1)

Prior to performing the following procedure, remove
the left side BOARD.
1. Replace the fuses inside.
[Caution] Be sure to use fuses with the specified
ratings.
 Replacing the heat sink cover (See Fig.3)
1. Remove four screws B from the rear panel.
2. Pull the heat sink cover outward.
Fig.1
 Replacing the power IC (See Fig.2)

Prior to performing the following procedure, remove
the top cover.
1. Remove the two screws A from the heat sink between
the power IC.
2. Remove the solder fixing the power IC.
W
A
Fig.2
CA-MXKA3A Fig.3 (A)
B
CA-MXKA3U/UJ/UW Fig.3 (B)
B
Fuse(F953)
T1AL 250V
Fuse(F951)
T2AL 250V
Fuse(F952)
T1.6AL 250V

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