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ESPEC 17MB95S User Manual

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SERVICE MANUAL
17MB95S
15.11.2012
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ESPEC 17MB95S Specifications

General IconGeneral
BrandESPEC
Model17MB95S
CategoryTV Tuner
LanguageEnglish

Summary

INTRODUCTION

TUNER

SI2156 Terrestrial and Cable TV Tuner

Integrates a complete hybrid TV tuner supporting worldwide terrestrial and cable TV standards.

AUDIO AMPLIFIER STAGES

MAIN AMPLIFIER (TAS5719)(6-8 W option)

A 10-W/15-W, efficient, digital audio-power amplifier for driving stereo bridge-tied speakers.

MAIN AMPLIFIER (TS4962M)(2.5 W option)

A differential Class-D BTL power amplifier, able to drive up to 2.3W into a 4 load.

HEADPHONE AMPLIFIER STAGE

Headphone is a SoC (single on chip) configuration in mainboard.

POWER STAGE

MICROCONTROLLER (MSTAR MSD8WB9BX)

1Gb DDR3 SDRAM

Hynix H5TQ1G630FA

1,073,741,824-bit CMOS Double Data Rate III (DDR3) Synchronous DRAM.

1Gb G-die DDR3 SDRAM

Samsung K4B1G1646G

DDR3 SDRAM with high speed double-data-rate transfer rates up to 1866Mb/sec/pin.

2Gbit (256M x 8 bit) NAND Flash Memory

H27U2G8F2CTR-BC

2Gbit NAND Flash Memory with 2048 blocks, x8 interface.

16M-BIT [16M x 1] CMOS SERIAL FLASH EEPROM

MX25L1602 Mstar SPI Flash

CMOS 16,777,216 bit serial Flash EEPROM with SPI interface.

USB Interface

USB2512B

Low-power, configurable, MTT hub controller IC products for embedded USB solutions.

CI Interface

Software Update

Main SW update

Procedure for updating the main software for the MB95 project.

Troubleshooting

No Backlight Problem

TV is working but has no picture and backlight.

CI Module Problem

CI is not working when CI module is inserted.

Staying in Stand-by Mode

TV stays in standby mode and no other operation.

IR Problem

LED or IR not working.

Keypad Touchpad Problems

Keypad or Touchpad is not working.

USB Problems

USB is not working or no USB Detection.

No Sound Problem

No audio at main TV speaker outputs.

Standby On/Off Problem

Device can not boot, TV hangs in standby mode.

No Signal Problem

No signal in TV mode.

Service Menu Settings

General Block Diagram