Aiwa CX-BK7 Service Manual

SERVICE MANUAL

Ver 1.1 2004.02
CX-BK7 is the amplifier, disc player, tape
deck and tuner section in BMZ-K7D.
This system incorporates Dolby* Digital, Dolby Pro
Logic (II) adaptive matrix surround decoder, and the
DTS** Digital Surround System.
* Manufactured under license from Dolby
Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are
trademarks of Dolby Laboratories.
** Manufactured under license from Digital Theater
Systems, Inc. "DTS" and "DTS Digital Surround"
are registered trademarks of Digital Theater
Systems, Inc.
US and foreign patents licensed from Dolby
Laboratories.
Amplifie r section
The following measured at AC 120, 127, 220, 240 V,
50/60 Hz
Rated Power Output at Stereo mode
Continuous RMS power output (reference)
Front speaker: 150 + 150 watts
(6 ohms at 1 kHz, 10%
THD)
Center speaker: 50 watts (8 ohms at 1 kHz,
10% THD)
Surround speaker: 50 watts (8 ohms at 1 kHz,
10% THD)
Inputs
LINE IN AUDIO (phono jacks):
voltage 1.1V, impedance
47 kilohms
LINE IN VIDEO (phono jack):
max. input level 1Vp-p,
unbalanced, Sync
negative, impedance
75 ohms
MD (AUX) IN (phono jacks):
voltage 1.1V, impedance
47 kilohms
MIC (phone jack): sensitivity 1 mV,
impedance 10 kilohms
Sony Corporation
9-961-333-02
2004B05-1 Home Audio Company
C 2004.02 Published by Sony Engineering Corporation
Model Name Using Similar Mechanism
DVD
DVD Mechanism Type
Section
Optical Traverse Unit Name
Model Name Using Similar Mechanism
Tape deck
Section
Tape Transport Mechanism Type

SPECIFICATIONS

Outputs
MD (AUX) OUT (phono jacks):
voltage 500 mV,
impedance 4.7 kilohms
VIDEO OUT (phono jack):
max. output level
1 Vp-p, unbalanced, Sync
negative, load impedance
75 ohms
S-VIDEO OUT (4-pin/mini-DIN jack):
Y: 1 Vp-p, unbalanced,
Sync negative,
C: 0.286 Vp-p, load
impedance 75 ohms
COMPONENT VIDEO OUT:
Y: 1 Vp-p, 75 ohms
P , P : 0.7 Vp-p, 75 ohms
B R
PHONES (stereo mini jack):
accepts headphones of
32 ohms or more
Front speaker: Use only the supplied
speaker SX-BK7
Surround speaker: Use only the supplied
speaker SX-BK7R
Center speaker: Use only the supplied
speaker SX-BK7C
SUB WOOFER OUT: voltage 1 V,
impedance 1 kilohm
CX-BK7
AEP Model
UK Model
E Model
Australian Model
NEW
CDM69DV-DVBU16V
DBU-1
NEW
CMAL1Z241A
Disc player section
System Compact disc and digital
audio and video system
Laser Semiconductor laser
(DVD: =657 nm,
CD: =793 nm)
Emission duration:
continuous
Frequency response DVD (PCM 48 kHz):
2 Hz 22 kHz ( 1 dB)
CD: 2 Hz 20 kHz ( 1 dB)
Video color system format
NTSC, PAL
OPTICAL DIGITAL OUT (Euro/UK, Russian models
only)
(Square optical connector jack, rear panel)
Wavelength 660 nm
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 100 10,000 Hz ( 3 dB),
using Sony TYPE I cassette
– Continued on next page –
DVD DECK RECEIVER