Toshiba 8M26C service manual Has video but no color

Page 48

Service Flow Chart

Has video but no color

 

Check the Color / Saturation

 

 

in picture menu if it has

 

N

decreased to “0”

Y

 

Check the cable input if

N

Increase the item

it has exactly connected

 

to default “50”

N

 

 

Y

 

OK

 

 

 

 

 

 

 

Well connect the cable

N

 

Check the current input

 

Done

 

 

 

 

source if it is TV

 

 

 

OK

 

 

 

Y

 

 

 

 

 

 

 

 

Change the main

 

Adjust AGC

 

 

Done

IC “U41”

 

 

follow the working guide.

 

 

 

 

 

N

 

OK

N

 

OK

 

 

 

 

 

 

Change the

 

Done

Check the DC power

Done

 

 

supply of the tuner.

 

 

mainboard

 

 

 

 

 

 

N

Y

 

 

 

 

 

 

 

Done

 

Fix the DC supply

Check the Q29 & U25 circuit

 

 

N

 

OK

N

 

OK

 

Change the tuner

Done

Check the Q29 & U25 circuit

Done

N

 

 

OK

N

OK

 

Change the mainboard

 

Done

Change the Q29 & U25

Done

 

 

 

 

N

 

OK

 

Done

 

 

Change the N

Done

 

 

 

 

mainboard

 

 

-48-

Image 48
Contents 8M266 Chassis 11-17 19-20 21-28 29-45 50-57 LED 8M26S Component For 22 LED Inches is 4 ohm Inches is 3W 12000 YES Y0 50 U10 IC Block Diagram U28 1A 3.3V SOT-223 AS1117L-ADJ PIN Diagram MST6E181VS U29 (4MX16BIT Banks DDR) M13S2561616A-5TG2K  0%,7&02665,$//$6+ 623 PS331 U1DUAL BTL Class D Audio Amplifier TPA3113D2 Page Main PCB Top/Bottom Layer Main PCB Top/Bottom Layer 8M26S Factory Adjust Menu V0.2 Description ADC adjusts White balance Page More information Lvds BIT Pwmfrequency Page Volume Curve Backlight Hotel Function Hotel Mode External Schematic and Installation Front PanelBack Panel Antenna /Cable Connection Zoom Remote Control MediaPicture Settings Basic OperationSound Settings DNRInstallation Settings Setup SettingsAdvanced Settings 0000PC Settings Auto AdjustGentle Reminder When Using The Media Player Media File Playback SupportMedia Menu Video Menu Video Control BarMusic Menu Music Control BarPhoto Menu Photo Control BarText Menu Text Control BarTroubleshooting No audio & No backlight Has video but no audio Has video but no color Flow Chart 100mA 1517 D74 MST6M181VS P1 HDMI1REAR +5VUSB1 PC-R PC-L For 100mA

8M26C specifications

The Toshiba 8M26C is a cutting-edge microcontroller that is part of Toshiba's renowned microcontroller family, designed specifically to meet the demands of modern applications in automation, embedded systems, and consumer electronics. With its robust architecture and rich feature set, the 8M26C stands out for its versatility and performance.

One of the main highlights of the Toshiba 8M26C is its high-performance 16-bit microcontroller core, which operates at an impressive clock speed of up to 20 MHz. This enables the chip to handle complex computations and execute multiple tasks efficiently, making it suitable for a wide range of applications from Industrial control systems to home appliances.

The 8M26C is equipped with ample memory resources featuring up to 16 KB of Flash memory for program storage and up to 1 KB of RAM for data handling. This generous memory allocation supports a variety of applications, allowing for the development of sophisticated firmware without the constraints found in lower-end microcontrollers.

Another significant feature of the 8M26C is its integrated peripherals. The microcontroller comes with a versatile set of interfaces, including multiple GPIO (General Purpose Input/Output) pins, an ADC (Analog-to-Digital Converter) with 10-bit resolution, and timers. This extensive range of peripherals facilitates sensor integration, motor control, and communication with other devices, enabling developers to create complex and interactive systems with ease.

Additionally, the 8M26C supports various communication protocols such as UART and SPI, which enhance its connectivity options. This makes it suitable for IoT applications where data exchange between devices is crucial.

Power efficiency is another strong point of the 8M26C. It incorporates low-power modes that help extend battery life in portable applications while maintaining operational readiness.

In terms of characteristics, the Toshiba 8M26C features a compact package design which aids in the integration into space-constrained environments. Its reliability is bolstered by advanced semiconductor technology, ensuring robust operation under various environmental conditions.

In conclusion, the Toshiba 8M26C is a powerful 16-bit microcontroller that combines performance, flexibility, and efficiency. Its well-rounded specifications make it an ideal choice for developers looking to create innovative and reliable embedded solutions across various industries.