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SHARP LC20B2H
Manual de Servicio


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  • Contiene diagramas del circuito
  • Descargable
  • Formato PDF
  • Manual completo
  • Idiomas: English
Precio: $4.99

Descripción del SHARP LC20B2H Manual de Servicio

Manual de servicio completo en formato digital (archivo PDF). Los manuales de servicio por lo general contienen diagramas de circuitos, tarjetas de circuitos impresos, consejos para reparación, diagramas de cableado, diagramas de bloque y lista de refacciones. El Manual de Servicio (a veces llamado Manual de Reparación) es usado principalmente por los técnicos.

Si tan solo quiere saber cómo utilizar su televisión, reproductor de vídeo, reproductor de mp3, etc. Quizá lo que necesita es el Manual del Propietario. Después de colocar la orden le enviaremos las instrucciones de descarga a su dirección de e-mail.

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TEXT_PDF_SNIPPET
LC-20B2H/M

ADJUSTING PROCEDURE OF EACH SECTION
The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust as follows.

1. Preparation for Adjustments
(1)Use the exclusive-use AC adapter or stable DC power supply. AC adapter: UADP-0219CEZZ DC power supply: 13 ± 0.5V 3.5A

[1] Adjustment Procedure
1-1. Adjusting the checker Turning on the power (initialization) ) Setting the model and size in inches ) Transferring the model-specified data to the E2PROM (I2C) ) Calling the adjustment process mode ) Starting the adjustment (+B) 1-2. Adjusting the finish process Reassembling the set ) Turning on the power ) Calling the adjustment process mode (using the remote controller) ) Adjusting the counter bias, TV contrast and white balance

[2] Calling the MAIN adjustment process mode
There are the following three ways to choose from. � Turn on the power and press the "ADJUST PROCESS" key on the remote controller. � Set KEY 4 and KEY 5, pins (81) and (82), respectively, on the microprocessor to the "L" level. Now turn on the power. � For servicing, hold down the INPUT SELECT and MENU keys at once, and turn on the POWER switch. (Make sure the process mode "K" appears at the top left of the screen.) Then press the CH DOWN and VOL DOWN keys at once. (Make sure the adjustment process mode screen shows up.) To quit this mode, turn off the power. (Or turn off the POWER switch or use the remote controller�s OFF key.)

[3] Using the keys for the adjustment process
Selecting a reception channel � Using the CH UP/DOWN key, turn up and down reception (broadcasting) channels. Just click on the key, and channels are selected on by one. Hold down the key, and the next receivable channel is searched up and down. � Adjustment items Adjust each of the items by using the MENU SELECT, CURSOR UP/DOWN, CH UP/DOWN and VOL UP/ DOWN keys (on the set or on the remote controller). � Select an adjustment item using the CURSOR UP/DOWN key. � An adjustment item is toggled on and off by activating the MENU SELECT key (next item). Let�s suppose that the item at the bottom of a page is now selected. When the MENU SELECT key is activated here, the item at the top of the next page will be selected.

[4] Initialization
4-1. Set pins (81) and (82) of IC2001 (microprocessor) to GND. Turn on the power. 4-2. Select a model number ( C2H, B2H ). 4-3. Select a size in inches ( 10, 13, 15, 20 ).

[5] Adjustment
5-1. +B adjustment (R3760 Variable resistor) 1) Receive the color bar signal. 2) Adjust the voltage at SC3403 (pin (38)) to 5.00± 0.02 V. Note: The 5.0 V level is used as reference for all the line voltages. Make this adjustment as precisely as possible. 5-2. Counter bias adjustment: COM BIAS on page 2 Adjust the "COM BIAS" setting until the contrast gets optimum (the black portion blackest). For Model LC-13B2H,

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