Philips dmreh 57 service manual

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ORDER NO.CHM0705024CE

Service Manual

Notes: This model's RAM/Digital P.C.B.
Module is - RFKNEH57GN(GN).

When replacing Main P.C.B. or EEPROM,
"UNFORMAT" indication is displayed and HDD must be
formatted.

When replacing HDD, it is necessary to update
the firmware.

Please prepare the update disc.

(After that, FORMAT is necessary)

After that, eramme in the HDD will be lost.
In detail, please refer to each content in this service
manual.

Caution:

Pairing of RAM Drive and Digital P.C.B. as "RAM/

Digital P.C.B. Module" have to be replaced together,

If the either FIAM drive or Digital P.C.B. are changed,
RAM Drive unit has to be re-aligned. Because the
alignment data for FIAM Drive Unit is stored in Digital PCB.

DVD Recorder
Madame. DMR-EH57GN

Vol. 1

Colour

(8) ....................... Silver Type
(K) ....................... Black Type

Manufactured under license from Dolby Laboratories.
Dolby and the doubleD symbol are trademarks of Dolby
Laboratories.

DTS is a registered trademark of DTS, Inc. and DTS
2.0+Digital Out" is a trademark of DTS, Inc.

This product incorporates copyright protection technology that is
protected by US. patents and other intellectual property rights.
Use of this copyright protection technology must be authorized
by Macrovision, and is intended for home and other limited
consumer uses only unless othenivise authorized by
Macrovision. Reverse engineering or disassembly is prohibited.

OSDHC Logo is a trademark.
oPortions of this product are protected under copyright law and
are provided under license by ARlS/SOLANAMC.

Panasonic?

Official DivX® Certified product.

Plays all versions of DivX® video (including DivXJG) with standard
playback of DivX® media tiles.

DivX, DivX Certified, and associated logos are trademarks of
DivX, Inc. and are used under license.

HDMI, the HDMI logo and High-Definition Multimedia Interface
are trademarks or registered trademarks of HDMI Licensing LLC.

HDAVI Controlm is a trademark of Matsushita Electric Industrial
Co., Ltd.

© 2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

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DMR-EH57GN

A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced protessional technicians Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

1 Safety Precaution --

1.1. General guidelines

2 Warning ---------------------------------------------------------------------------------- 4
2.1. Prevention of Electrostatic Discharge (ESD) to

Electrostatic Sensitive (ES) Devices ................................ 4

2.2. Precaution of Laser Diode .............................................. 5

2.3. SerVICe caution based on legal restrictions ...................... 5

3 Service Navigation .................................................................. 7

3.1. Service Information
3.2. Caution for DivX-

4 Specifications ----------

5 Location of Controls and Components ................................. 1o
6 Operation Instructions .......................................................... 12
6.1. Taking out the Disc from DVD-Drive Unit when the Disc

cannot be ejected by OPEN/CLOSE button ................... 12
7 Service Made ----------------------------------------------- 15
7.1. SeltDiagnosis and Special Mode Setting ...................... 15

3 Service Fixture 8. Tools ----------------------

9 Disassembly and Assembly Instructions

9.1. Disassembly Flow Chart ----------------

9.2. P.C.B. Positions ----------------------------------------------------------- 29
9.3. Top Case -------------------------------------------------------------------- 30
9.4. Front Panel ------------------------------------------------------------------ 30
9.5. HDD, ATAPI P.C.B. ------------------------------------------------------ 31
9.6. RAM/Digital P.C.B. Module ------------------------------------------- 33
9.7. DV Jack P.C.B. ............................................................ 34
9.8. Rear Panel .................................................................. 34

9.9. Power P.C.B.
9.10. HDMI P.C.B.

9.11. Main P.C.B., Front Jack P.C.B. and Front (L) P.C.B.- -36
10 Measurements and Adjustments --
10.1. Service Positions --------------------------------------------------------- 37
10.2. Caution for Replacing Parts ------------------------------------------ 41
10.3. Standard Inspection Specifications after Making Repairs43
11 Block Diagram ...................................................................... 45
11.1. Power Supply Block Diagram ---------------------------------------- 45

11.2. Analog Video Block Diagram
11.3. Analog Audio Block Diagram

11.4. Analog Timer Block Diagram

11.5. HDMI Block Diagram ---------------------------------------------------- 50
12 Schematic Diagram --------------------------------------------------------------- 51
12.1. Interconnection Schematic Diagram .............................. 51

12.2. Power Supply Schematic Diagram -------------------------------- 52

Page

12.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) ----------------------------------------------------------------- 53

12.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) ----------------------------------------------------------------- 54

12.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) ----------------------------------------------------------------- 55

12.6. Main Net (4/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) ----------------------------------------------------------------- 56

127. AV I/O (1/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV)-
12.8. AV I/O (2/4) Section (Main P.C.B. (2/4)) Schematic

--58

Diagram (AV) --------------------------------------------------------------- 59
129. AV I/O (3/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) --------------------------------------------------------------- 60
12.10. AV I/O (4/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) ----------------------------------------------------- 61
12.11. Tuner Section (Main P.C.B. (3/4)) Schematic Diagram
(TU) ------------------------------------------------------- 63

12.12. Timer (1/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T)-
12.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic

--e4

Diagram (T) --------------------------------------------------- 65
12.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic

Diagram (T)--- -------------------------------------------- 66
12.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic

Diagram (T)--- ------------------------------------------------- 67
12.16. HDMI Schematic Diagram -------------------------------------------- 68

12.17. DV Jack Schematic Diagram
12.18. Front Jack Schematic Diagram
12.19. Front (L) Schematic Diagram --

12.20. ATAPI Schematic Diagram ........................................... 59

13 Printed Circuit Board ............................................................ 71

13.1. Power P.C.B. and DV Jack P.C.B, ................................ 71

13.2. Main P.C.B. ----------------------------------------------------------------- 72

13.3. HDMI P.C.B. ---------------------------------------------------------------- 77

13.4. Front Jack P.C.B. and Front (L) P.C.B. ......................... 78
13.5. ATAPI P_C_B. ...................

14 Appendix for Schematic Diagram
14.1. Voltage and Waveform Chart

15 Parts and Exploded Views ---------------------------------------------------- 88
15.1. Exploded Views ----------------------------------------------------------- 88
15.2. Replacement Parts List ------------------------------------------------ 90