Hello guys
Few days ago I got myself Yamaha MCR-755 (micro system) which I connected with my Sony
KDL-40R480B. Everything is working fine, sound is great, like I expected. The only thing I notice, and the reason I am writing this is this: when I turn lights in dinning room-sound on my speakers disappears for a second and than it comes back. There are no cracking sounds or buzzing, it is just like I mute sound for a second.Same thing happens with lights in my bathroom. Both lights are 12Volts, all the rest in my home are 220Volts. It only happens on those two on 12V.
Tv and Yamaha are connected via HDMI 1.4 which supports ARC and both tv and yamaha are ARC compatible. I have tried switching wall plugs, different ac cables- still nothing, its like small gremlin lives in my speakers 
It doesnt really bother me that much, its just I bought it new (both tv and yamaha) and this tiny problem appears- I d like to know if it is something serious, something that will "kill " my system or lower its performance or "life"... I googled a lot past few days and saw many people have "same" problem (they pick up radio stations program or have cracking sounds on their speakers...)so am guessing it must be a common thing... So many of them talking about some stuff I need to "filter ac current, surge protectors,ups's..." I am getting more confused. My dad is Electrical engineer and he tells me that its not big deal (although he s quite old for this new age HD digital hdmi things...).
One more thing that confuses me even more is this: I disconnected HDMI and connected tv and yamaha with analog 3.5mm (tv audio out) and stereo cinch(yamaha) ((3.5mm to RCA)). I tried lights and nothing! Problem solved!???? I try fast turn on/off lights and sound muting appears... Completely confused...
HiFi System
Center Unit Output Power/Channel (6 ohms, 1 kHz, 10% THD) 30 W + 30 W
Total Harmonic Distortion(CD to Sp Out, 20 Hz-20 kHz) 0.05% (1 W/6 ohms)
Dimensions (W x H x D) 215 x 115 x 306 mm
Weight 3 kg
Speaker System Woofer 12cm cone woofer
Tweeter 3cm soft dome tweeter
Input Power (Max/Nominal) 110 W / 40 W
Frequency Response 55 Hz-28 kHz
Sensitivity 85 dB/2.83 V/1 m
Crossover Frequency 4.5kHz
Impedance 6 ohms
Dimensions (W x H x D) 154 x 274 x 287 mm
Weight 3.9 kg
Center Unit Disc Type Blu-ray Disc, DVD, CD
USB Yes
Internet Radio vTuner (*The unit may require software update)
DLNA Yes
Ethernet Yes
Tuner FM
Supported iPod/iPhone/iPad iPod classic, iPod nano (2G - 6G), iPod touch (1G - 4G), iPhone, iPhone 3G, iPhone 3GS, iPhone 4 and iPad
KDL-40R480B SONY TV
Screen type LCD
Backlight type Direct LED
Dimming Type -
Resolution Full HD (1920 x 1080)
Screen size (inch) 40
Screen size (cm) 102
Aspect ratio 16:9
Dynamic contrast ratio Over 1 million
Viewing Angle (Right/Left) (89/89)
Viewing Angle (Up/Down) (89/89)
PICTURE QUALITY
Triluminos Display
-
Picture processing engine
-
Face Area Detection
-
Video Area Detection
-
Super resolution for Game Mode
-
Picture mode settings
Vivid / Standard / Custom / Cine
ma / Graphics/Pho
to-Vivid/Photo-
Standard/Photo-Custom/Sports/Game
Wide mode settings
FULL / Normal / Wide Zoom / Zoom / Caption / 14:9
Wide mode settings for PC
Normal/Full1/Full2
Auto wide mode
YES
Motion enhancer
Motionflow XR 100
Advanced Contrast Enhancer (ACE)
YES
Live Colour™ Technology
YES
Deep Colour
-
Intelligent MPEG Noise Reduction
-
Scene select
Music / Cinema / Game / Graphics / Sports / Photo / Auto
24p True Cinema
YES
CineMotion / Film Mode / Cinema Drive
YES
3D FEATURES
Full HD 3D
-
3D Super-resolution
-
Auto 3D Depth Adjustment
-
3D
-
Simulated 3D
-
SimulView™
-
NETWORK FEATURES
NFC One-Touch Mirroring
-
Screen Mirroring
YES
Wi-Fi Certified
YES
Wi-Fi Direct
YES
Skype™
-
Sony Entertainment Network
-
Apps
-
Web browser
-
Wi-Fi® Direct
-
What's New
-
DLNA Content
-
Photo Map
-
DESIGN FEATURES
Stand design
AL Shaft Black
Illumination LED
-
Swivel
-
AUDIO QUALITY
Speaker
-
Phase
-
Audio power output
8W + 8W
Sound mode settings
Standard / Cinema / Sports / Music / Game
Surround Effect
-
S-Force Front Surround 3D
-
S-Master
-
Dolby®
Dolby Digital, Dolby Digital Plus
Stereo system
NICAM/A2
INPUTS AND OUTPUTS
AC power input
1 (Bottom)
RF connection input
1 (Bottom)
HDMI™ input
2 (Side)
HDMI™ PC input
YES
SCART input (without Smartlink)
1 (Rear)
SCART input (with Smartlink)
-
USB
1 (Side)
Ethernet input
-
Composite video input
1 (Bottom) Hybrid
w/ Component
Component video (Y/Pb/Pr) input
1 (Bottom) Hybrid w/ Composite
PC in (D-Sub) + Audio in (Stereo Mini)
-
PCMCIA input
1 (Top)
Analog audio input
1 (Bottom)
Optical digital output
-
Audio output
1 (Bottom/Hybrid w/HP)
Headphone output
1 (Bottom/Hybrid w/ Audio Out)
Video Out (SCART)
1 (Rear)
Service Port
-
ECO AND ENERGY SAVING
Energy Label Rating
A
Screen size (measured diagonally) (approx. in inch)
40
Screen size (measured diagonally) (approx. in cm)
102
Power consumption (in operation) (Home mode) (W)
58W
Power consumption (in operation) (Shop mode) (W)
84W
Annual energy consumption (kWh*)
-
Power consumption (Standby) (W)
-
Power Consumption (off mode) (W)
-
Peak luminance ratio
75%
Mercury content (mg)
0
LightSensor
-
Energy saving switch
-
Power saving modes
YES
Dynamic backlight control
YES
Backlight off mode
YES
Scene Optimized Energy Saving
-
SPECIAL FEATURES
Electronic programme guide (EPG) YES
On-screen clock YES
Sleep timer YES
On / Off timer YES
BRAVIA Sync YES
Picture and picture (PAP) -
Parental control YES
USB Play YES (MPEG1/MPEG2PS/MPEG2TS/AV
CHD/MP4Part10/MP4Part2/AVI
(XVID)/AVI(MotionJpeg)/WMV9/MKV/WEBM/WAV/MP3/WMA/JPEG)
USB HDD Recording -
Photo Frame mode YES
Multiple language display YES
Favourites -
Panorama -
Skin Naturalizer -
i-Manual -
On-screen display for external input YES
BUILT-IN TUNERS
DVB-T (digital terrestrial) YES
DVB-T2 (digital terrestrial) -
DVB-S (digital satellite) -
DVB-S2 (digital satellite) -
DVB-C (digital cable) YES
CI+ YES
Analog YES
VIDEO SIGNAL
1080/24p (HDMI™ only) YES
480/60i YES
480/60p YES
576/50i YES
576/50p YES
720/50p YES
720/60p YES
1080/60i YES
1080/50i YES
1080/60p (HDMI™ / Component) YES
1080/50p (HDMI™ / Component) YES
1080/30p (HDMI only) YES
If someone can tell me what to do I would appreciate it very much. Tks in advance.
