| Problem | Likely Cause & Solution | | :--- | :--- | | | 1. Check speaker connections (short circuit possible). 2. Press MUTING on remote. 3. Turn up MASTER VOLUME . | | Distorted sound | 1. Reduce volume. 2. Check speaker impedance (use 6–16Ω). | | Hum or noise | 1. Check antenna connections (FM/AM). 2. Move receiver away from fluorescent lights or AC transformers. | | No surround effect | 1. Press A.F.D. or Cinema Studio EX . 2. Check that source is Dolby/DTS encoded (e.g., DVD). | | Remote does not work | 1. Replace batteries. 2. Clear obstructions between remote and receiver. 3. Press AMP (or RECEIVER ) button first to control the receiver. | | PROTECT appears on display | The unit has detected a short or overheating. Turn off, disconnect all speakers, check wires, then reconnect one by one. |
: The setup involves matching color-coded wires (red to red, black to black) to terminal clips for five speakers and an active subwoofer. sony str k670p manual
Composite video switching (RCA yellow jacks). Radio Tuner: FM/AM with 30 programmable station presets. 2. Front and Rear Panel Layout | Problem | Likely Cause & Solution | | :--- | :--- | | | 1
The STR-K670P features internal decoding to convert stereo signals into full surround sound. Press MUTING on remote