Used
ICs: UPC4570 – TDA7370
Driver
Satellite 8.5 cm (3-3/8") x 4.5 cm (1-3/4") cone Magnetically shielded type
Subwoofer 12 cm (4-3/4") cone Magnetically shielded type (JA1287)
Amplifier Output
Satellite 6 W + 6 W (1 kHz, 4Ω at T.H.D.=10%)
Subwoofer 18 W (100 Hz, 4Ω at T.H.D.=10%)
Power Supply
U.S.A. and Canada models AC 120V, 60 Hz
U.K. and Europe models AC 230V, 50 Hz
Australia model AC 240V, 50 Hz
DISASSEMBLY
PROCEDURES
Subwoofer
(Remove parts in disassembly order as numbered.)
1. Removal of Rear Panel Ass'y
Remove 8 screws (1) and then remove the Rear Panel Ass'y.
2. Removal of Front Grille Ass'y
a. Insert the tip of flat tip (-) screwdriver to slot located at bottom side of the Front Grille Ass'y.
b. Pry the Front Grille Ass'y by applying force to the screwdriver.(note) Take special care not to cause damage to the cabinet when using the screwdriver.
3. Removal of Speaker
Remove 4 screws (2) and then remove the Speaker.
Subwoofer
(Remove parts in disassembly order as numbered.)
1. Removal of Rear Panel Ass'y
Remove 8 screws (1) and then remove the Rear Panel Ass'y.
2. Removal of Front Grille Ass'y
a. Insert the tip of flat tip (-) screwdriver to slot located at bottom side of the Front Grille Ass'y.
b. Pry the Front Grille Ass'y by applying force to the screwdriver.(note) Take special care not to cause damage to the cabinet when using the screwdriver.
3. Removal of Speaker
Remove 4 screws (2) and then remove the Speaker.
Schematic (Circuit Diagram)
Click on the pictures to zoom in
