SECTION 1

SERVICING NOTES

MODEL IDENTIFICATION

– Specification Label –

MODEL NO. TA-P9000ES

MULTI CHANNEL PRE AMPLIFIER

SERIAL NO.

MADE IN JAPAN

US, Canadian models : AC 120V 60Hz 20W

AEP model : AC 220 - 230V 50/60Hz 20W

Notes on chip component replacement

•Never reuse a disconnected chip component.

•Notice that the minus side of a tantalum capacitor may be dam- aged by heat.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer:

Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers.). Leakage current can be measured by any one of three methods.

1.A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instruments.

2.A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3.Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A)

To Exposed Metal

Parts on Set

0.15∝F

AC

1.5 k Ωvoltmeter

(0.75 V)

Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

– 3 –

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Sony TA-P9000ES service manual Section Servicing Notes, Multi Channel PRE Amplifier Serial no Made in Japan
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TA-P9000ES specifications

The Sony TA-P9000ES is a high-performance preamplifier that has become a coveted piece of equipment for audio enthusiasts. Designed with precision and sophistication, the TA-P9000ES is a part of Sony's prestigious ES (Elevated Standard) series, known for its commitment to superior sound quality and durability.

One of the main features of the TA-P9000ES is its robust construction. Encased in a solid chassis, this preamplifier is designed to minimize resonance and electromagnetic interference, ensuring the cleanest signal possible. This attention to build quality not only enhances durability but also contributes to the overall performance of the unit.

At the heart of the TA-P9000ES is its advanced audio circuitry. Utilizing premium components and meticulous engineering, it delivers an exceptional auditory experience, capturing the nuances of each note with precision. The preamplifier supports a wide frequency response, allowing users to enjoy high-fidelity sound across various genres of music.

The TA-P9000ES boasts multiple connectivity options, making it versatile for different setups. It features balanced XLR inputs and outputs, ensuring optimal signal integrity over long cable runs. Additionally, RCA connectors are available for traditional setups, catering to a broader range of audio systems. The inclusion of digital inputs, such as optical and coaxial, enhances its compatibility with modern devices, allowing seamless integration into home theatre systems or digital music sources.

Another standout characteristic is its control flexibility. The TA-P9000ES comes equipped with a remote control, enabling users to adjust settings from across the room with ease. Furthermore, it features a user-friendly interface that simplifies navigation and configuration for achieving the desired audio profile.

In terms of technologies, the TA-P9000ES incorporates advanced digital signal processing (DSP) capabilities, allowing for precise tuning of audio output. The unit also supports various surround sound formats, accommodating audiophiles who seek an immersive experience while watching movies or playing games.

In summary, the Sony TA-P9000ES is a flagship preamplifier that combines construction quality, advanced audio circuitry, diverse connectivity options, and modern technologies. Its dedication to sound fidelity and user experience makes it a desirable choice for anyone serious about high-quality audio. As part of the ES series, it not only meets but often exceeds the expectations of audiophiles.
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