Philips CDR822, CDR820, CDR802, CDR800 Service Manual

CORRECTION TO THE SERVICE MANUAL

•

MECHANICAL PARTSLIST

Correct code number for pos. 225 WORDMARK PHILIPS reads 3104 120 00290.

CHANGES IN COURSE OF PRODUCTION

•NEW SOFTWARE

- From production week 0152 onwards following new software versions have been implemented in the sets:

CDR80x:

Main µP 7414: V46
CDR module: MO2021, B0042 (MO stands for “Mozart Board”, B stands for “Basic Engine”)

CDR82x:

Main µP 7414: V34
CDR module: MO2021, B3201 (MO stands for “Mozart Board”, B stands for “Basic Engine”)

The upgrade of the CDR module addresses the following issues:

• Playback of Audio CD’s which do not comply with the Red Book standard

• New features in Service Testprogram

• Detection of corrupted mp3 files and proper handling of CRC errors

• Better track time prediction for VBR encoded mp3 files

• Improved CD-TEXT indexing

• Automatic Loader Detection during startup

• Several minor improvements
Software versions V34 (CDR82x) respectively V46 (CDR80x) of the main µP 7414 enable the extended Service Testprogram

which is already indicated in the Service Manual.
For updated flow charts of the Service Testprogram see attached sheets.

Service Information

SSeerrvviiccee
SSeerrvviiccee

Service

Product Service Group CE Audio

Compact Disc Recorder CDR800, CDR802

A02-350

©

3103 785 25170

2002-03-02

Already published Service Informations: none

CDR820, CDR822

- From production week 0207 onwards the software of the Mozart Board has been upgraded to MO3001.

This upgrade addresses a major problem with the “Disc Recover Mode” of models CDR820, CDR822 and a few minor problems
valid for all sets.

Problem “Disc Recover Mode”:
After a power failure during recording, the set enters the “Disc Recover Mode” but it does never return from this mode. The
display shows “Disc Recover” even after disconnecting/reconnecting mains.
The faulty disc cannot be removed because the set does not react on any button (i.e. Open/Close).
The problem can be solved by a software upgrade of the Mozart Flash ROM to “MO3001”.
To remove the faulty disc from the tray proceed as follows:

1. Remove Top Cover

2. Connect mains → set will enter Recover Mode

3. Stop the disc manually until an error message is displayed

4. Press Open/Close

•

DISPLAY BOARD

The copper pattern has been changed to layout stage .7.

(The layout stage can be identified by the last digit of the 12-figure number, located at the upper left corner of the copper pattern)
Reason: To ensure a reliable startup with the flash-version of the µP over all tolerances, resistor 3497 has been added between

pin 9 of µP 7414 and ground.

3497© 4822 051 30103 10k 5% 0.06W

Portion of Display Board layout stage .7

(copperside view)

added

IR EYE

D

1K

3420

100n

D

D

2400

3440

1K

100R

3438

GP1U28XP

7403

3

GND4MT

1OUT

VSUP

2

3439

10K

2n2

D

2401

KEY

F409

30

29

3465 14 3397 32931

3431

F405

F404

F402

F400

F401

F403

3486

4K7

VCC

8

100n

KEY

+5VST

LED_Speed

Key_ON_OFF

+uP

PORT P4

P47

P46

P45

P44

P71

P70

VSS1

VSS2

TB0IN

TXD0|FLD52
RXD0|FLD53

CTS0|RTS0|FLD55

AVSS

CLK0|FLD54

CNVSS

added

10K

3497

D

4,8V

4,8V

4,9V

5V

5/0V

5V

5V

0V

Communication