Philips DD-A110GX User manual

Service Manual

CONTENTS

1. Specification……………………………………………………………. 1-1

2. Product Validation Strategies and Process

2.1 System Block Diagram ………………………………………….. 2-1

2.1.1Front panel introuction………………………………………….. 2-2

2.1.2Rear Panel introuction………………………………………….. 2-3

3. Test Tool Instruction ……………………..……………………………... 3-1

4. Fault Finding Tree & trouble shooting…………………………….… 4-1

5. Disassembly Instructions

5.1 Disassemble the Top-Cover.…………………………………… .5-1

5.2 Disassemble the Drive……………………………………………. 5-2

5.3 Disassemble the M/B ………………………….…………………. 5-4

5.4 Disassemble Power module. …………………………………… 5-5

6. Firmware Update …………………………………………….………… 6-1

7. Exploded View &Spare parts list ….………………………………… 7-1

8. Ic and Transistor Voltage Charts………..……………….…………. 8-1

1-1

1. Specifications

2-1

2.Product Validation Strategies and Process

2.1. System Block Diagram

Front Panel

Tuner Board

Loader

Power Module

2-2

2.1.1 Front Panel

2-3

2.1.2 Rear Panel

3-1

3.Test tool introduction

There will be a testing DVD disc (for NTSC system named as 5-1 disc, for PAL system named

as 5-2P disc) as a tool when repair, below will introduce the content of the disc

3.1 Performance Testing Procedure mainly contains 6 parts:

1). Video Signal Test

2). Speaker & Sound Signal Test

3). Music Demo

4). Video Demo

5). Karaoke Demo

6). Digital Signal Test (not usable for the time being)

3.2 Test Instructions:

1). Video Signal Test need go through 6 screen pictures to check the output

Note of Step:

Then, 3 pictures will show up on the screen: 1.Color bar, 2.Mono scope and 3.Dot

Pattern.

And test will automatically go on to playback the 3 pictures shown as below:

3-2

¾Test Criteria:

Color bar has sharp, bright and stable color show;

Mono scope or Dot pattern has no tilt or twisted effect;

The RGB picture as below has normally good effect to the naked eyes.

If anything undeterminable, please refer to the following factors to evaluate:

Video Performance (The test appliance is Tektronix VM 700/s-video VM500/Component):

DA Converter 10-bit/54 MHZ

Composite Output 1Vpp &5 Ohm

S-video Output Y: 1Vpp 75Ohm

C: 0.3Vpp 75 Ohm

Component

Output

Y: 1Vpp 75Ohm

Pb: 0.7 Vpp 75 Ohm

Pr: 0.7 Vpp 75 Ohm

2). Speaker & Sound Signal Test is to test its output audio fineness and locating

efficiency of the speaker.

Note of Step:

Select no.2 --- Speaker & Sound Signal Test in the login. The test will check the

locating efficiency and audio signal as well as special frequency.

¾Test Criteria:

The standard audio output is clear without popping and the signal output from Hi-Fi is normal.

3-3

If anything undeterminable, please refer to the following factors to evaluate:

Audio Performance (The test appliance is Audio position SWR-2122U)

DA converter 24 –bit /192KHZ

AD converter 24≦-bit

Signal-Noise (1kHZ) 90dB≧

Dynamic range(1kHZ) 80dB≧

Cannel Separation(1kHZ) 80dB≧

Total Harmonic Distortion(1kHZ) ≦-65dB

3). Music Demo test is to check the video output signal good without noise.

4). Video Demo test is to check the normal function of subtitle, language, angle

and so on.

remote to choose “Subtitle” “Audio” and “Angle” to check the normal function.

Navi button

3-4

5). Karaoke Demo Test:

3.3 Items of the DVD disc in common use when rma

5.3.1 Necessary Repairing tools in need to test the following 3 items:

A. Video output

B. Audio output

C. AV output (film)

5.3.2 Note of step:

STEP1:

A. Insert the DVD VIDEO 5-1 / 5-2P disc and it will auto playback

B.Press the key of “Top Menu” on remote to login the menu

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