SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer:

1.Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges.

2.Check the interboard wiring to ensure that no wires are “ pinched” or contact high-wattage resistors.

3.Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.

4.Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.

5.Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

6.Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.

7.Check the connector shell, metal trim, “ metallized” knobs, screws, and all other exposed metal parts for AC Leakage. Check leakage as de- scribed right.

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 microamperes).

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” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOMs that are suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

To Exposed Metal

Parts on Set

0.15 ∝ F

 

 

 

 

1.5 k Ω

AC

 

 

 

 

Voltmeter

 

 

 

 

 

 

(0.75 V)

 

 

 

 

 

 

 

Earth Ground

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

KE-32TS2U(UC) 2

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Sony KE-32TS2U service manual Safety CHECK-OUT
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KE-32TS2U specifications

The Sony KE-32TS2U is a lightweight, portable television designed to meet the needs of users who prioritize mobility without compromising on quality. Sporting a 32-inch LCD screen, this model brings vibrant colors and sharp images to life, making it an excellent choice for both indoor and outdoor viewing. Its sleek design allows it to fit seamlessly into various environments, whether you’re watching your favorite shows in a cozy living room or enjoying a movie night in your backyard.

One of the main features of the KE-32TS2U is its Full HD resolution, delivering crisp visuals with a resolution of 1920 x 1080 pixels. This clarity enhances your viewing experience, ensuring that every detail is vivid and immersive. Complementing this is Sony’s advanced image processing technology, which enhances picture quality by reducing noise and optimizing contrast. As a result, users can enjoy sharper images even in fast-moving scenes, making it perfect for sports and action movies.

The Sony KE-32TS2U also incorporates innovative backlighting technology, which provides improved brightness and delivers richer colors. The high dynamic range (HDR) compatibility further elevates the viewing experience by allowing for a wider range of colors and contrast levels, bringing a more realistic and lifelike portrayal of scenes.

Connectivity options are another key highlight of the KE-32TS2U. It features multiple HDMI ports, enabling seamless connections with various devices such as gaming consoles, Blu-ray players, and sound systems. Additionally, USB ports allow users to view photos and media directly from their devices, creating a versatile entertainment experience.

Portable by design, the KE-32TS2U is equipped with a lightweight chassis and a durable stand, making it easily movable to different locations. Its energy-efficient performance ensures that you can enjoy extended viewing sessions without the worry of excessive power consumption.

Overall, the Sony KE-32TS2U combines cutting-edge technology with portability and functionality, making it an ideal choice for those seeking a high-quality television experience on the go. With its rich features and impressive performance, this model stands out as an excellent investment for consumers looking to enhance their entertainment setup.
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