This document describes the Sony TA-F161/F261R Integrated Stereo Amplifier, covering its functions, technical specifications, usage features, and maintenance information.
Function Description
The TA-F161/F261R is an integrated stereo amplifier designed to process and amplify audio signals from various sources. Its core functions include:
- Preamplification: It features a low-noise preamplifier and an equalizer amplifier, essential for processing low-level signals, particularly from a PHONO (MM) input.
- Power Amplification: The amplifier incorporates a pure-complementary SEPP OCL power amplifier, designed to deliver robust and clear audio output to speakers.
- Input Selection: The device allows users to select between multiple audio input sources, including PHONO (MM), TUNER, CD, TAPE 1/DAT, and TAPE 2/MD.
- Volume Control: A VOLUME control knob and remote control functionality allow for precise adjustment of the sound level.
- Tone Control: BASS and TREBLE controls are provided to adjust the frequency response, allowing users to tailor the sound to their preference.
- Balance Control: A BALANCE control is included to adjust the relative volume between the left and right channels.
- Loudness Function: A LOUDNESS button enhances bass and treble frequencies at low volume levels, compensating for the human ear's reduced sensitivity to these frequencies.
- Headphone Output: A PHONES jack allows for private listening with headphones.
- Recording Output: A REC OUT phono jack provides an unamplified signal for connecting to a recording device.
- Remote Control (TA-F261R only): The TA-F261R model includes a remote control sensor and a supplied remote commander (RM-S312) for convenient operation of the amplifier and compatible Sony equipment like tuners, CD players, and tape decks. The remote commander offers specific buttons for TUNER (preset selection), CD (play, stop, pause, disc skip), TAPE 2 DECK A/DECK B (fast winding, stop, reverse/forward playback, recording), PHONO (start/stop playback), and DAT/TAPE 1 mode selection, in addition to volume control.
Important Technical Specifications
The TA-F161/F261R models share many specifications, with key differences in power output and certain components.
Amplifier Section
- Continuous RMS Power Output (both channels driven simultaneously):
- TA-F261R: 50 W + 50 W (4 ohms, 1 kHz DIN), 40 W + 40 W (8 ohms, 1 kHz DIN)
- TA-F161: 40 W + 40 W (8 ohms, 1 kHz DIN)
- Tone Controls:
- BASS: ±8 dB (100 Hz)
- TREBLE: ±8 dB (10 kHz)
- Frequency Response:
- PHONO: RIAA equalization curve ±0.5 dB
- TUNER, CD, TAPE 1/DAT, TAPE 2/MD: 10 Hz – 100 kHz ± dB
- Residual Noise: Less than 170 µV (network A)
- PHONO (MM): 2.5 mV / 50 kilohms
- TUNER, CD, TAPE 1/DAT, TAPE 2/MD: 200 mV / 50 kilohms
Signal-to-Noise Ratio (S/N)
- PHONO (MM): 80 dB
- TUNER, CD, TAPE 1/DAT, TAPE 2/MD: 105 dB
Output
- REC OUT (Phono jack): Voltage 200 mV / Impedance 1 kohm
- PHONES (Stereo phone jack): Accepts low and high impedance headphones
General Specifications
- System:
- Preamplifier: Low-noise, equalizer amplifier
- Power amplifier: Pure-complementary SEPP OCL power amplifier
- Power Requirements:
- AEP, German, UK model: 220 V – 230 V AC, 50/60 Hz
- E model: 120 V, 220 V or 240 V AC adjustable, 50/60 Hz
- Power Consumption:
- TA-F261R: 120 W
- TA-F161: 100 W
- Dimensions (w/h/d): Approx. 430 x 115 x 310 mm (17 x 4 1/2 x 12 1/4 inches)
- Mass:
- TA-F261R: Approx. 4.5 kg (9 lb 15 oz)
- TA-F161: Approx. 4.4 kg (9 lb 11 oz)
- Supplied Accessories (TA-F261R only): Remote commander RM-S312 (1), Sony SUM-3 (NS) batteries (2)
Note: All values are measured at 230 V AC for models for continental European countries and U.K. Design and specifications are subject to change without notice.
Usage Features
The amplifier is designed for ease of use with both front panel controls and, for the TA-F261R, a comprehensive remote commander.
- Intuitive Front Panel: The front panel features clearly labeled controls for power, function selection, volume, tone (bass/treble), balance, and loudness. Indicators show the currently selected function.
- Multi-Source Connectivity: Multiple input jacks allow connection of various audio components, making the amplifier a central hub for a home audio system.
- Headphone Convenience: The front-mounted PHONES jack provides easy access for headphone listening.
- Recording Capability: The REC OUT jack facilitates connecting a tape deck or other recording device to capture audio from any selected input source.
- Remote Control Convenience (TA-F261R): The remote commander significantly enhances user experience by allowing control of the amplifier and other compatible Sony components from a distance. This includes:
- Direct Function Selection: Dedicated buttons for TUNER, CD, TAPE 2, DAT/TAPE 1, and PHONO.
- Playback Control: Standard playback controls (play, stop, pause, fast winding) for CD players and tape decks.
- Recording Initiation: The remote can initiate recording on compatible tape decks.
- Volume Adjustment: Volume up/down buttons for precise sound level control.
- Tuner Preset Selection: PRESET +/- buttons for navigating tuner stations.
- CD Disc Skip: For CD players equipped with a multi-disc changer.
Maintenance Features
The manual provides information crucial for servicing and maintaining the device.
- Detailed Diagrams:
- IC Pin Function: A table detailing the pin functions of the IC801 Function Controller (M50761-291P), which manages volume, function selection, and power on/standby. This is vital for troubleshooting control circuit issues.
- Circuit Boards Location: An exploded view illustrating the physical location of all major circuit boards (AC IN, AC SW, HP, CONT, VOL SEL, CN A, CN B, MAIN boards) within the chassis. This aids in component identification and replacement.
- Printed Wiring Boards: Detailed layouts of the printed wiring boards, including component locations and patterns. This is essential for identifying specific components and tracing circuits during repair. Semiconductor locations are also mapped.
- Schematic Diagram: A comprehensive schematic diagram showing the electrical connections and components, including block diagrams for ICs (IC103 LC7818, IC601 UPC1237HA, IC801 LB1639). This is the primary resource for understanding circuit operation and diagnosing faults.
- Exploded Views:
- Case, Front Cabinet Section: An exploded view showing the assembly of the front panel, knobs, and internal components, facilitating disassembly and reassembly for repairs.
- Chassis Section: An exploded view of the main chassis and its associated parts, including the power transformer and various boards, crucial for structural repairs and component access.
- Electrical Parts List: A detailed list of all electrical components, including part numbers, descriptions, and remarks. This list is critical for ordering replacement parts. It categorizes components by type (Capacitor, Connector, Diode, IC, Jack, Relay, Resistor, Switch, Transistor, Vibrator) and includes miscellaneous accessories and packing materials.
- Safety-Related Component Warning: The manual explicitly highlights safety-critical components (identified by a mark or dotted line with a mark on diagrams and in parts lists). It emphasizes that these components must be replaced only with specified Sony parts to ensure safe operation.
- Standardized Parts Note: Information regarding standardized parts (-XX and -X) that may differ slightly from the original, which is important for technicians when sourcing replacements.
- Color Indication: Explanation of color indications for appearance parts (e.g., KNOB, BALANCE (WHITE)... (RED)), useful for cosmetic replacements.
- Stock Information: Notes on items not typically stocked due to infrequent demand, indicating potential delays in ordering.
- Mechanical Parts: Clarification that mechanical parts without reference numbers in exploded views are not supplied as separate items.
- Hardware List: A list of screws and other hardware components used in the assembly.
This comprehensive documentation ensures that technicians have all necessary information for effective troubleshooting, repair, and maintenance of the Sony TA-F161/F261R Integrated Stereo Amplifier.
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