Dolby Digital, DTS, and Dolby Pro Logic II decoding.

If the system becomes unresponsive or settings are corrupted, perform a hard factory reset to restore original factory defaults. Press to turn off the receiver. Hold down the VIDEO 1 button on the front panel. While holding VIDEO 1 , press the POWER button once. The display will show FACTORY RESET or CLEARED .

The STR-K670P is a basic Dolby Pro Logic receiver from the early 2000s. It works fine for VCRs, old game consoles, or TV shows – but don’t expect real 5.1 digital surround. If you need the speaker pinout or test tone procedure, the manual’s diagrams on pages 8–12 are the most useful.

: Automatically detects the incoming audio signal and decodes it exactly as encoded. If a movie has a Dolby Digital 5.1 track, it will automatically activate all five speakers. If it receives a 2-channel track, it will play in stereo.

: Delivers 60 watts per channel at 6 ohms (Stereo mode) and up to 100 watts per channel in full 5.1 Surround mode.

Note: Because this receiver lacks HDMI ports, you should connect your source devices (like a streaming stick or modern console) directly to your TV via HDMI, and then run an optical cable from the TV's "Audio Out" down to the receiver. 4. Audio Settings and Calibration

Dolby Digital, Dolby Pro Logic II (Movie/Music/Game), DTS 5.1 1x Optical TOSLINK, 1x Coaxial Digital RCA Analog Inputs Multi-channel RCA inputs, CD, MD/Tape, Video 1, Video 2 Radio Tuner FM Stereo / AM with 30 customizable station presets Weight & Dimensions 6.5 kg (14.3 lbs) Step-by-Step Setup Guide Home Theatre System - Sony

Color-coded spring clips for Front Left, Front Right, Center, Surround Left, and Surround Right speakers. Do not connect speakers with an impedance lower than 8 ohms.

Are you using the or a third-party universal remote?

To recall, just use PRESET +/-.

The RM-PP406 (or similar supplied remote) allows full control of the receiver. Cycles through inputs. SOUND FIELD: Changes the surround mode.