Sony CX-BK1, Service Manual

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SERVICE MANUAL
COMPACT DISC RECEIVER
US model
COMPACT DISC DECK RECEIVER
AEP, UK, Chilean, Peruvian and Mexican models
US Model
AEP Model
UK Model
E Model
CX-BK1
Ver 1.1 2004.02
9-877-426-02
Sony Corporation
2004B05-1 Home Audio Company
C
2004.02 Published by Sony Engineering Corporation
SPECIFICATIONS
•
CX-BK1 is the amplifier, CD player, tape deck
and tuner section in BMZ-K1.
•
Tape deck is not loaded in US model.
TUNER
FM tuning range 87.5 MHz to 108 MHz
FM usable sensitivity (IHF) 13.2 dBf
FM antenna terminal
75
Ω
(unbalanced)
AM tuning range 530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1710 kHz (9 kHz step)
AM usable sensitivity 350
µ
V/m
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
)
Total harmonic distortion 0.08 % (90 W, 1 kHz, 6
Ω
)
Input LINE IN VIDEO: 1.0 Vp-p (75
Ω
)
LINE IN AUDIO: 1.1 V
AUX (MD) IN: 1.1 V
MIC: 2.5mV (Chilean, Peruvian
and Mexican models)
Outputs SPEAKERS: 6
Ω
or more
PHONES: 32
Ω
or more
AUX (MD) OUT: 500 mV
VIDEO OUT: 1.0 Vp-p (75
Ω
)
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
Heads Recording/playback
×
1, erase
×
1
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
Licensed by BBE Sound, Inc. under USP4638258, 5510752
and 5736897.
Model Name Using Similar Mechanism NEW
CD Section
CD Mechanism Type CDM69BV-30CBD64NS
Base Unit Name BU-30CBD64NS
Optical Pick-up Name A-MAX.3
TAPE Section
Model Name Using Similar Mechanism NEW
(Except US model)
Tape Transport Mechanism Type 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
Dimensions (w/h/d) Approx. 211
×
379
×
419 mm
(8 3 /
8
×
15
×
16 5 /
8
in.)
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.