Sony Str K670p Manual 〈100% PLUS〉

The Sony STR-K670P Go to product viewer dialog for this item.

is a 5.1-channel FM Stereo AV Receiver designed to serve as the hub of the HT-DDW670 Home Theater System. This guide summarizes the essential operating instructions and troubleshooting tips found in the official manuals. Core Specifications & Connectivity

Power Output: Delivers 60 watts per channel (into 6 ohms) for stereo and surround sound configurations (Front, Center, Surround, and Subwoofer).

Audio Inputs: Equipped with Digital Coaxial, Digital Optical TOSLINK, and several Stereo L/R RCA jacks.

Surround Formats: Supports Dolby Digital, DTS, and Dolby Pro Logic II for cinematic audio. Dimensions: Approximately mm, weighing roughly 6.5 kg. Initial Setup Procedures Sony STR K670P Home Theater System Sound Test

The Sony STR-K670P is a 5.1-channel A/V receiver, typically found as part of the HT-DDW670 Home Theater System, featuring digital/analog inputs and Dolby Digital/DTS decoding. The unit offers around 100W per channel and supports various speaker configurations for 8-ohm systems. Access the full operating instructions and specifications at Sony Support Home Theatre System - Pro.sony

Speaker Hookup: Connect speakers with impedances of 6 to 16 ohms [19]. Ensure all wires are firmly seated to avoid humming or "Protect" errors [10]. sony str k670p manual

Standard 5.1 Layout: Includes Front (L/R), Center, Surround (L/R), and a Subwoofer [1, 17]. Audio Inputs:

Digital: Connect DVD players or gaming consoles via the Coaxial (orange) or Optical jacks [2].

Analog: Use standard RCA cables (White for Left, Red for Right) for older components [2].

Antennas: Connect the supplied AM loop antenna and FM wire antenna to the rear terminals for radio reception [9]. 2. Initial Setup & Speaker Calibration

Speaker Setup Menu: Access the menu to define speaker sizes (Micro/Large) and distances [9].

Level Adjustment: You can manually adjust the volume of individual speakers (Front, Center, Surround, and Sub) to balance the sound field for your seating position [18]. The Sony STR-K670P Go to product viewer dialog

A.F.D. (Auto Format Direct): Press this button to have the receiver automatically detect the incoming audio format (like Dolby Digital or DTS) and play it through the intended channels [6, 9]. 3. Audio Modes & Features

Surround Sound: The unit supports Dolby Digital, Pro Logic Surround, and DTS Digital Surround [6, 17].

2CH Stereo: Use this mode if you only want sound from the front two speakers and the subwoofer [9].

Sound Fields: Use the MOVIE or MUSIC buttons to select pre-programmed DSP effects that simulate different listening environments [6].

Dimmer: Adjust the brightness of the front panel display for theater-like viewing [6]. 4. Troubleshooting & Maintenance

"PROTECTOR" or "PROTECT" Error: This usually triggers due to a short circuit in the speaker wires or poor ventilation [10]. Turn volume to minimum (counter-clockwise)

Fix: Turn off the unit, unplug it for 30 minutes, and re-examine all speaker wire connections to ensure no frayed wires are touching the chassis or other terminals [10].

Resetting the Unit: To clear all settings and return to factory defaults, press and hold the Power button along with specific function buttons (often ENTER or VOLUME UP depending on the exact sub-model) for 5 seconds [15].

No Sound: Verify the INPUT MODE is set correctly (Auto, Digital, or Analog) for the component you are using [9]. 5. Technical Specifications Power Output

Approximately 500 Watts total (approx. 100W per channel) [14] Supported Systems Dolby Digital, Pro Logic, DTS [6, 17] Impedance 6 – 16 ohms [19] Video/Audio Links Sony Support Hub

Part 7: Where to Download the Official Sony STR K670P Manual (PDF)

As of 2025, Sony does not host the STR K670P manual on its official support site. However, multiple reputable archives have scanned copies.

Step 4: First Power-Up

• Turn volume to minimum (counter-clockwise).
• Press POWER.
• Select an input (e.g., CD).
• Slowly raise volume. If the receiver clicks off (protection mode), immediately power down and check speaker wiring.

3. Installation and connections

• Placement: Ventilated area, not in enclosed tight spaces, avoid heat sources and moisture.
• Speaker wiring: Use correct polarity, recommended impedance (e.g., 8–16 ohms), avoid short circuits, do not connect A and B with a single speaker unless manual permits.
• Antenna connection: FM 75-ohm coax to FM terminal; AM loop orientation per manual.
• Grounding: If phono used, attach ground wire to reduce hum.
• Power: Ensure voltage matches rating; use grounded outlet if required.

Step 2: Connect Speakers

• Strip 10mm of insulation from speaker wire.
• Twist strands tightly to avoid shorts.
• Connect FRONT A speakers first (Left to L+, L-; Right to R+, R-).

1. The Hookup Guide (Getting Started)

The manual typically dedicates the first section to connections. The STR-K670P is designed to handle both audio and video switching.

• Speaker Configuration: This unit is designed for a 5.1 channel surround sound setup. The manual specifies connecting:
  • Front Speakers (A/B): You can connect two sets of front speakers, but the manual warns about impedance. If you use two pairs simultaneously, ensure they are 8-ohm speakers or higher to prevent overheating.
  • Center Speaker: Crucial for dialogue.
  • Surround Speakers: Placed to the side or behind the listener.
  • Subwoofer: The K670P usually includes a dedicated subwoofer output (Mono out).
• Video Inputs: The receiver acts as a switcher. You connect your DVD player, Game Console, or Cable box into the receiver, and one cable runs out to the TV. The manual emphasizes using the correct color-coded RCA cables (Yellow for Video, Red/White for Audio).

Step 5: Tuning Radio Presets

1. Select FM or AM.
2. Press TUNING +/- to find a station.
3. Press MEMORY (flashes on display).
4. Press PRESET +/- to choose a preset number (0–29).
5. Press MEMORY again to save.

To recall, just use PRESET +/-.