Jvc CS BB2 J Service Manual
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Extracted text from Jvc CS BB2 J Service Manual (Ocr-read)
Page 1
Ulzsz-L
JVC
SERVICE MANUAL
ACTIVE SUBWOOFER SYSTEM
CS-BBZJ, CS-BBZU
Lead free solder used in the board (material : Sn-Ag-Cu, melting point: 219 Centigrade)
TABLE OF CONTENTS
PRECAUTION ......................................................................... 1-3
SPECIFIC SERVICE INSTRUCTIONS ...................................................... 1-3
DISASSEMBLY ....................................................................... 1-3
ADJUSTMENT ........................................................................ 1-5
TROUBLESHOOTING .................................................................. 1-5
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.MA252
2006/3
Page 2
SPECIFICATION
Type
Closed Active Subwoofer (Built-in amplifi er)
Speaker Unit
14 cm (5-9/16 in.) cone
Input Terminal
LINE IN (1 system), 0.19 V/25 k0
SPEAKER (1 system), 3.7 v
Power Output
32 W RMS x 2 channels at 2 Q and [< or =]1% THD + N
Signal-to-Noise Ratio
75 dBA (reference: 1 W into 2 £2)
Maximum Amplifi er Power Output
60W + 60W (impedance 2 Q + 2 Q)
Cut-off Frequency
110 Hz (L.P.F. switch "ON", -12 dB/oct low pass fi Iter)
Crossover Frequency
20 HZ to 200 HZ (L.P.F. switch "ON")
20 HZ to 500 HZ (L.P.F. switch "OFF")
Sound Pressure Level
88 dB/ m (with line input: 0.03 V)
Level Control
-50 dB to 0 dB (Center) to +10 dB
Power Requirement
DC 14.4 V (11 V to 16 V allowance), Negative ground
Dimensions (W/H/D)
290 mm x 60.5 mm X 200 mm (11-7/16 in. X 2-7/16 in. X 7-7/8 in.)
Mass
2.1 kg (4.7Ibs) (Excluding accessories)
Design and specifi cations are subject to change without notice.
1-2 (No.MA252)