Sony STR-K7200 Service Manual - Page 1

SERVICE MANUAL Ver. 1.0 2008.02 STR-K7200 US Model • STR-K7200 is the receiver section in HT-7200DH. This receiver incorporates Dolby* Digital and Pro Logic Surround 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 under U.S. Patent #'s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,487,535 & other U.S. and worldwide patents issued & pending. DTS and DTS Digital Surround are registered trademarks and the DTS logos and Symbol are trademarks of DTS, Inc. © 1996-2007 DTS, Inc. All Rights Reserved. This receiver incorporates High-Definition Multimedia Interface (HDMITM) technology.HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. The XM name and related logo are registered trademarks of XM Satellite Radio Inc. All rights reserved. "x.v.Color" and "x.v.Color" logo are trademarks of Sony Corporation. "BRAVIA" and are trademarks of Sony Corporation. AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 6 ohm loads, both channels driven, from 120 - 20,000 Hz; rated 90 watts per channel minimum RMS power, with no more than 1% total harmonic distortion from 250 milliwatts to rated output. Amplifier section Power Output1) Stereo mode (rated) (6 ohms 1 kHz, THD 1%) 90 W + 90 W Surround mode (reference) (6 ohms 1 kHz, THD 10%) RMS Output2) FRONT: 140 W per channel CENTER: 140 W SURROUND: 140 W per channel SPECIFICATIONS 1)Measured under 120 V AC, 60 Hz 2)Reference power output for front, center and surround speakers. Depending on the sound field settings and the source, there may be no sound output. Inputs Analog Sensitivity: 800 mV/ 50 kohms Digital (Coaxial) Impedance: 75 ohms Outputs (Analog) AUDIO OUT Voltage: 800 mV/ 10 kohms SUB WOOFER Voltage: 2 V/1 kohm Tone Gain levels ±6 dB, 1 dB step Reproduction frequency range 28 - 20,000 Hz 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 With 10-kHz tuning scale: 530 - 1,710 kHz3) With 9-kHz tuning scale: 531 - 1,710 kHz3) Antenna Loop antenna Intermediate frequency 450 kHz 3)You can change the AM tuning scale to 9 kHz or 10 kHz. After tuning in any AM station, turn off the receiver. While holding down TUNING MODE, press ?/1. All preset stations will be erased when you change the tuning scale. To reset the scale to 10 kHz (or 9 kHz), repeat the procedure. Video section Inputs/Outputs Video: 1 Vp-p, 75 ohms COMPONENT VIDEO: Y: 1 Vp-p, 75 ohms PB/CB: 0.7 Vp-p, 75 ohms PR/CR: 0.7 Vp-p, 75 ohms 80 MHz HD Pass Through - Continued on next page - MULTI CHANNEL AV RECEIVER 9-887-947-01 2008B05-1 © 2008.02 Sony Corporation Audio Business Gourp Published by Sony Techno Create Corporation