Sony STR-K890 Service Manual

SERVICE MANUAL

Ver. 1.0 2007.01
• STR-K890 is the tuner and the amplifier section
in HT-DDW890.
This receiver incorporates Dolby* Digital and Pro Logic Surround and
the DTS** Digital Surround System.
* Manufactured under license from Dolby Laboratories. "Dolby", "Pro
Logic", "Surround EX", and the double-D symbol are trademarks of
Dolby Laboratories.
** "DTS" and "DTS-ES Neo:6" are registered trademarks of DTS, Inc.
"96/24" is a trademark of DTS, Inc.
Amplifier section
1)
Power Output
Models of area code AEP, UK
Stereo mode (6 ohms, 1 kHz, THD 1%)
90 W + 90 W
2)
Surround mode (reference) (6 ohms, 1 kHz,
THD 10%)
RMS output
FRONT:135 W
per channel
CENTER:135 W
SURROUND:135 W
per channel
SURROUND BACK:
135 W
1)
Measured under the following conditions:
Area code Power requirements
AEP, UK 230 V AC, 50 Hz
2)
Reference power output for front, center, surround
and surround back speakers. Depending on the
sound field settings and the source, there may be
no sound output.
Sony Corporation
9-887-520-01
Home Audio Division
2007A16-1
Published by Sony Techno Create Corporation
© 2007.01
STR-K890
SPECIFICATIONS
Inputs (Analog)
SA-CD/CD/CD-R, Sensitivity: 800 mV
TV, SAT, DVD, Impedance: 50 kohms
VIDEO 1, 3
Inputs (Digital)
DVD (Coaxial) Sensitivity: –
Impedance: 75 ohms
SAT, VIDEO 2/BD Sensitivity: –
(Optical) Impedance: –
Outputs (Analog)
SA-CD/CD/CD-R Voltage: 800 mV
(OUT), Impedance: 10 kohms
VIDEO 1 (AUDIO
OUT)
SUB WOOFER Voltage: 2 V
Impedance: 1 kohm
Reproduction frequency range:
28 – 20,000 Hz
Tone
±6 dB, 1 dB step
Gain levels
MULTI CHANNEL AV RECEIVER
AEP Model
UK Model
FM tuner section
Tuning range 87.5 - 108.0 MHz
Antenna FM wire antenna
Antenna terminals 75 ohms, unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Models of area code AEP, UK
With 9-kHz tuning scale:
531 – 1,602 kHz
Antenna Loop antenna
Intermediate frequency
450 kHz
Video section
Inputs/Outputs
Video: 1 Vp-p, 75 ohms
COMPONENT VIDEO:
Y: 1 Vp-p, 75 ohms
P /C : 0.7 Vp-p, 75 ohms
B B
P /C : 0.7 Vp-p, 75 ohms
R R
80 MHz HD Pass Through
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