Sony HCD-BX70DBi Service Manual

SERVICE MANUAL
Ver. 1.2 2009.02
• HCD-BX70DBi is the amplifi er, CD player, tuner
and iPod section in CMT-BX70DBi.
iPod is a trademark of Apple Inc., registered in the U.S. and other countries.
MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer
IIS and Thomson.
All other trademarks and registered trademarks are of their respective holders.
®
TM
In this manual, and marks are not specified.
Amplifier section
DIN power output (rated):
18 + 18 W (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 25 + 25 W (6 ohms at 1 kHz,
10% THD)
Music power output (reference): 38 + 38 W (6 ohms at 1 kHz, 10% THD)
Inputs
AUDIO IN (stereo mini jack): voltage 250 mV, impedance 47 kilohms
Outputs
PHONES (stereo mini jack): accepts headphones of 8 ohms or more
SPEAKER: accepts impedance of 6 to 16 ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6μW
* This output is the value measurement at a distance of 200mm from the
objective lens surface on the Optical Pick-up Block with 7mm aperture.
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tuner section
DAB tuner section:
Frequency range*
Band-III: 174.928 (5A) – 239.200 (13F) MHz
* For details, see "DAB frequency table" below.
Antenna: FM/DAB lead antenna
Antenna terminal: 75 ohms, F female
FM stereo, FM/AM superheterodyne tuner
FM tuner section:
Tuning range: 87.5 – 108.0 MHz (50 kHz step)
Antenna: FM/DAB lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range: 531 – 1,602 kHz (with 9 kHz tuning interval)
Antenna: AM loop antenna, external antenna terminal
Intermediate frequency: 450 kHz
Sony Corporation
9-889-139-03
2009B00-1 Audio&Video Business Group
© 2009.02 Published by Sony Techno Create Corporation
HCD-BX70DBi
Model Name Using Similar Mechanism
Base Unit Name
Optical Pick-up Block Name
SPECIFICATIONS
DAB frequency table (Band-III)
Frequency
174.928 MHz
176.640 MHz
178.352 MHz
180.064 MHz
181.936 MHz
183.648 MHz
185.360 MHz
187.072 MHz
188.928 MHz
190.640 MHz
192.352 MHz
194.064 MHz
195.936 MHz
197.648 MHz
199.360 MHz
201.072 MHz
202.928 MHz
204.640 MHz
206.352 MHz
208.064 MHz
AEP Model
Label Frequency Label
5A 209.936 MHz 10A
5B 211.648 MHz 10B
5C 213.360 MHz 10C
5D 215.072 MHz 10D
6A 216.928 MHz 11A
6B 218.640 MHz 11B
6C 220.352 MHz 11C
6D 222.064 MHz 11D
7A 223.936 MHz 12A
7B 225.648 MHz 12B
7C 227.360 MHz 12C
7D 229.072 MHz 12D
8A 230.784 MHz 13A
8B 232.496 MHz 13B
8C 234.208 MHz 13C
8D 235.776 MHz 13D
9A 237.488 MHz 13E
9B 239.200 MHz 13F
9C
9D
– Continued on next page –
COMPACT DISC RECEIVER
UK Model
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BU-K6BD90-WOD
KSM-213DCP