Philco 91PLD32HS9B - User Manual

Skyworth RGB R&D Centre Technical Document
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SERVICE MANUAL
Design and specifications are subject to change without prior notice. (Only for Reference)
Description: SERVICE MANUAL 7M31B
Version:V0.00
Prepared By: Hanweiwei Date: 2019-03-06
Checked By: Date:
Approved By: Date:

Summary

Revision History

Technical Specification

System Block

List of key parts

IC General Description

Amplifier: TPA3138 D2 PWPR

Describes the TPA3138D2 stereo audio amplifier IC.

RF controller: SI2151-A10

Details the SI2151-A10 hybrid TV tuner controller.

Earphone AMP: NA

Notes on the Earphone Amplifier, indicating no specific part.

5 V_STB;3.3 V_STB: MP1652 GTF-Z

Describes the MP1652GTF-Z step-down converter for standby supplies.

1.0 V_VDDC: MP1653 GTF-Z

Describes the MP1653GTF-Z step-down converter for VDDC.

1.5 V_DDR: TPS562201 DDCR

Details the TPS562201DDCR 2-A converter for DDR power.

EMMC: THGBMNG5 D1 LBAIL

Describes the THGBMNG5D1LBAIL eMMC flash memory.

DDR: H5 TQ2 G63 GFR-TEC

Details the H5TQ2G63GFR-TEC DDR memory specifications.

POWER IC: OZ5311 GN-A2-0-TR

Describes the OZ5311GN-A2-0-TR PWM controller for power ICs.

Backlight IC:OZ560 EGN-B1-0-TR

Details the OZ560EGN-B1-0-TR LED driver controller for backlight.

Software Upgrade

Setting Hotle Mode Menu

Wiring Diagram

PCB Silkscreen

Silkscreen top

Top side component layout and markings on the PCB.

Silkscreen bottom

Bottom side component layout and markings on the PCB.

Schematic Circuit Diagram

Key Power Check Point

Trouble Shooting

No Display

Troubleshooting steps for when the screen shows no image.

Has BackLight but no Image

Steps to diagnose issues when backlight is on but no image appears.

Has Video but no Sound

Troubleshooting steps for audio problems when video is present.

Has Main power but no BackLight

Diagnosing issues when main power is available but backlight fails.

No main power (12 V_NOR)

Steps to troubleshoot the absence of main 12V power supply.

Philco 91PLD32HS9B Specifications

General

Brand	Philco
Model	91PLD32HS9B
Category	LED TV
Language	English