Sony CX-BK1 Service Manual

SERVICE MANUAL

Ver 1.1 2004.02
• CX-BK1 is the amplifier, CD player, tape deck
and tuner section in BMZ-K1.
• Tape deck is not loaded in US model.
Licensed by BBE Sound, Inc. under USP4638258, 5510752
and 5736897.
TUNER
FM tuning range 87.5 MHz to 108 MHz
FM usable sensitivity (IHF) 13.2 dBf
75 Ω (unbalanced)
FM antenna terminal
AM tuning range 530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1710 kHz (9 kHz step)
350 µ V/m
AM usable sensitivity
AM antenna Loop antenna
AMPLIFIER
Power output
US model: 110 W + 110 W (40 Hz - 20 kHz,
THD less than 1%, 6 Ω)
140 W + 140 W (40 Hz - 20 kHz,
THD 10%, 6 Ω)
Chilean, Peruvian and Mexican models:
140 W + 140 W (1 kHz, THD
less than 1%, 6 Ω)
180 W + 180 W (1 kHz, THD
10%, 6 Ω)
0.08 % (90 W, 1 kHz, 6 Ω)
Total harmonic distortion
LINE IN VIDEO: 1.0 Vp-p (75 Ω)
Input
LINE IN AUDIO: 1.1 V
AUX (MD) IN: 1.1 V
MIC: 2.5mV (Chilean, Peruvian
and Mexican models)
SPEAKERS: 6 Ω or more
Outputs
PHONES: 32 Ω or more
AUX (MD) OUT: 500 mV
VIDEO OUT: 1.0 Vp-p (75 Ω)
Sony Corporation
9-877-426-02
2004B05-1 Home Audio Company
C 2004.02 Published by Sony Engineering Corporation
Model Name Using Similar Mechanism
CD Mechanism Type
CD Section
Base Unit Name
Optical Pick-up Name
Model Name Using Similar Mechanism
TAPE Section
(Except US model)
Tape Transport Mechanism Type

SPECIFICATIONS

CD PLAYER
Laser Semiconductor laser (λ = 800 nm)
Emission duration: continuous
D/A converter 1 bit dual
Signal-to-noise ratio 85 dB (1 kHz, 0 dB)
Wow and flutter Unmeasurable
CASSETTE DECK (Except US model)
Track format 4 tracks, 2 channels stereo
Frequency response 100 Hz – 10000 Hz (± 3dB)
Recording system AC bias
Recording/playback × 1, erase × 1
Heads
GENERAL
Power requirements
US model: 120 V, 60 Hz
Mexican model: 127 V, 60 Hz
Chilean and Peruvian models:
120 V/220 – 230 V/240 V AC
(switchable), 50/60 Hz
COMPACT DISC DECK RECEIVER
AEP, UK, Chilean, Peruvian and Mexican models
CX-BK1
AEP Model
NEW
CDM69BV-30CBD64NS
BU-30CBD64NS
A-MAX.3
NEW
CMAL1Z240A
Power consumption
US model: 120 W
Chilean and Peruvian models:
155 W
Mexican model: 160 W
Power consumption in standby mode
US model: with ECO mode on: 0.25 W
with ECO mode off: 20 W
Chilean and Mexican models:
with ECO mode on: 0.25 W
with ECO mode off: 28 W
Approx. 211 × 379 × 419 mm
Dimensions (w/h/d)
3
(8
Mass
US model: Approx. 8.6 kg (19 lbs)
Chilean and Peruvian models:
Approx. 9.9 kg
Specifications and external appearance are subject to change
without notice.
COMPACT DISC RECEIVER
US Model
UK Model
E Model
× 15 ×16
5
/ / in.)
8 8
US model