Philips CED750/55 User manual

CED750/55/98/51

DB-SL 0950 3141 785 33263

Exploded View & Parts List

Version 1.3

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1-1

Location of PCBS

Service policy /55

/55

VERSION VARIATIONS:

Type/Versions

Board inused:

CED750

Feature diffrence

Features

* TIPS:C--Component Lever Repair.

M--Module Lever Repair

--Used

MAIN BOARD

SERVO BOARD

MOTOR BOARD TFT DRIVER BOARD

MOTOR BOARD

TFT DRIVER BOARD

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Specifications

General

Power supply: 12V DC(11V-16V)

negative groud

Fuse: 15A

Suitable speaker impedance: 4-8ȍ

Maximum power output: 50W×4channels

Continous power out: 24W×4channels(4ȍ10% T.H.D.)

Pre-Amp output voltage: 2.0V(CD play mode;1kHz,0dB,10kȍload)

Subwoofer output voltage: 2.0V(CD play mode)

Aux-in level: ı500mV

Dimensions(W×H×D): 188×58×193mm

Weight: 2.5kg

Disc Player

System: Disc digital audio system

Frequency response: 20Hz-20k Hz

Signal/noise ratio: η75dB

Total harmonic distortion: Less than 0.3%(1KHz)

Channel separation: η55dB

Video signal for mat: NTSC/PAL/AUTO

Video output: 1+/0.2V

LCD

Screen size: 7inches(16:9)

Display resolution: 480×234 dots

Active area: 154.08×86.58mm

Dot pitch: 0.107×0.370mm

Contrast ratio: 350

Brightness: 200cd/m

Bluetooth

Communication system: Bluetooth Standard version 2.0

Output: Bluetooth Standard Power Classer 2

Maximum communication rang

Line of sight approx.10m

Frequency band: 2.4GHz band(2.4000GHz-2.4835GHz)

Modulation method: FHSS

Compatible Hands-Free Profile(HFP)

bluetooth Hands-Free Profile(HFP)

profiles Advanced Audio

Distribution Profile(A2DP)

Audio Video Remote

Control Profile(AVRCP)

Supported SBC(Sub Band Codec),MP3

codecs SBC(Sub Band Codec)

Receive

Transmit

Tuner

Frequency range 87.5-108.0MHz(Eur)

ˉFM 65.0-74.0MHz˄OIRT˅

87.5-107.9MHz(Ame)

Frequency range 522-1620KHz(Eur)

ˉAM(MW) 530-1710MHz(Ame)

Usable sensitivity 8uV

ˉFM

Usable sensitivity 30uV

ˉAM(MW)(S/N=20db)

Frequency response 30Hz-15KHz

Stereo separation 30db(1KHz

Signal/noise ratio η55db

Note:Specifications and design are subject to change without notice for product improvements.

1-2

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MEASUREMENT SETUP

Tuner FM

DUT

RF Generator

Bandpass

LF Voltmeter

e.g. PM5326

250Hz-15kHz

e.g. 7122 707 48001 e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

Ri=50Ω

Use a bandpass filter to eliminate hum(50Hz,100Hz) and disturbance from the pilottone(19kHz,38kHz).

Tuner AM (MW,LW)

DUT

RF Generator

Bandpass

LF Voltmeter

e.g. PM5326

250Hz-15kHz

e.g. 7122 707 48001 e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

Ri=50Ω

Frame aerial

e.g. 7122 707 89001

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday s cage.

Use a bandpass filter ( or at least a high pass filter with 250Hz) to eliminate hum ( 50Hz,100Hz ).

DUT DUT

LF Generator

e.g. PM5110

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

S/N and distortion meter

e.g. Sound Technology ST1700B

Use Audio Signal Disc SBC429 4822 397 30184

(replaces test disc 3)

Cassette

Use Universal Te st Cassette CrO2 SBC419 4822 397 30069

or Universal Te st Cassette Fe SBC420 4822 397 30071

1-3

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1-4

SERVICE AIDS

WARNING

All ICs and many other semi-conductors are

susceptible to electrostatic discharges (ESD).

Careless handling during repair can reduce life

drastically.

When repairing, make sure that you are

connected with the same potential as the mass

of the set via a wrist wrap with resistance.

Keep components and tools also at this

potential.

ESD

CLASS 1

LASER PRODUCT

Safety regulations require that the set be restored to its original

condition and that parts which are identical with those specified,

be used

Safety components are marked by the symbol

Lead free

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1-5

INSTRUCTIONS ON CD PLAYABILITY

Set remains closed!

check playability

Exchange CDM

"fast" lens cleaning

playability

ok?

playability

ok?

playability

ok?

①

Customer complaint

"CD related problem"

Check playability

Play a CD

for at least 10 minutes

ann lnfo for customer

"SET OK"②

return set

①-④For description-see following pages

③

For flap loaders(=access to CD drive possible)

clesning method④is recommended

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1-6

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Software version check & upgrade

2-1 2-1

Software version check

Open the Settings menu, and then press the numeric keys ?43210?on the remote control in turn. A

picture contained version information will be displayed.

MPEG upgrade

1. First, copy the upgrade files to SD card or USB storage device. To ensure success, add some

media files larger than 8M such as MP3 to the storage device meanwhile.

Upgrade Files: MPEG.BIN MCU.BIN BT.BIN

2. Insert the storage device contained upgrade files into the player and the player will load the

upgrade files automatically. Following picture will be displayed.

3. Following picture will be displayed after you select the 'MPEG upgrade' option.

4. Touch ' upgrade' to start upgrade process and following picture will be displayed. Meanwhile, Beep

tone can be heard during the upgrade process.

BT upgrade

1. First, copy the upgrade files to SD card or USB storage device. To ensure success, add some

media files larger than 8M such as MP3 to the storage device meanwhile.

Upgrade Files: MPEG.BIN MCU.BIN BT.BIN

2. Insert the storage device contained upgrade files into the player and the player will load the

upgrade files automatically. Following picture will be displayed.

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3. Following picture will be displayed after you select the 'BT upgrade’ option.

5. Touch 'Upgrade’ to start upgrade process and following picture will be displayed.

MCU upgrade

1. First, copy the upgrade files to a SD card or USB storage device. To ensure success, add some

media files larger than 8M such as MP3 to the storage device meanwhile.

2. Insert the storage device contained upgrade files into the player and the player will load the

upgrade files automatically. Following picture will be displayed.

3. Following picture will be displayed after you select the 'MCU upgrade’ option.

4. Touch 'Upgrade’ to start upgrade process and following picture will be displayed.

5. When the upgrade process of MCU has been done, the player will reset automatically and the

whole upgrade process is done.

Upgrade Files: MPEG.BIN MCU.BIN BT.BIN

Software version check & upgrade

2-2 2-2

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