Panasonic DMR-EH59GC User manual

© Panasonic Corporation 2009.
Unauthorized copying and distribution is a violation
of law.
Order No. CHM0903007CE
DVD Recorder
Model No. DMR-EH59GA
DMR-EH59GC
DMR-EH59GN
Vol. 1
Colour:
(K).......................Black Type

2
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions -----------------------------------------------4
1.1. General Guidelines ----------------------------------------4
1.2. Caution for AC Cord(For EH59GC only) -------------5
2Warning--------------------------------------------------------------6
2.1. Prevention of Electro Static Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------6
2.2. Precaution of Laser Diode -------------------------------7
2.3. Service caution based on Legal restrictions---------8
3 Service Navigation------------------------------------------------9
3.1. Service Information ----------------------------------------9
3.2. Caution for DivX --------------------------------------------9
4 Specifications ---------------------------------------------------- 10
5 Location of Controls and Components------------------ 13
6 Operating Instruction------------------------------------------ 15
6.1. Taking out the Disc from DVD-Drive Unit when
the Disc cannot be ejected by OPEN/CLOSE
button-------------------------------------------------------- 15
7 Service Mode ----------------------------------------------------- 19
7.1. Self-Diagnosis and Special Mode Setting---------- 19
8 Service Fixture & Tools --------------------------------------- 33
9 Disassembly and Assembly Instructions--------------- 34
9.1. Disassembly flow chart --------------------------------- 34
9.2. P.C.B. Positions------------------------------------------- 35
9.3. Top cover--------------------------------------------------- 36
9.4. Front Panel ------------------------------------------------ 36
9.5. Front (L) P.C.B., Front (R) P.C.B. -------------------- 36
9.6. HDD, SATA P.C.B. --------------------------------------- 37
9.7. RAM/Digital P.C.B. Module ---------------------------- 37
9.8. DV Jack P.C.B., USB SD P.C.B.---------------------- 38
9.9. Rear Panel, Fan Motor --------------------------------- 39
9.10. Power P.C.B. ---------------------------------------------- 39
9.11. HDMI P.C.B. ----------------------------------------------- 39
9.12. Main P.C.B., SW P.C.B.--------------------------------- 40
10 Measurements and Adjustments -------------------------- 41
10.1. Service Positions ---------------------------------------- 41
10.2. Caution for Replacing Parts--------------------------- 45
10.3. Standard Inspection Specifications after
Making Repairs------------------------------------------- 46
11 Block Diagram --------------------------------------------------- 47
11.1. Power Supply Block Diagram ------------------------ 47
11.2. Analog Video Block Diagram ------------------------- 49
11.3. Analog Audio Block Diagram ------------------------- 50
11.4. Analog Timer Block Diagram ------------------------- 51
11.5. HDMI Block Diagram ----------------------------------- 52
12 Schematic Diagram -------------------------------------------- 53
12.1. Interconnection Schematic Diagram ---------------- 53
12.2. Power Supply Schematic Diagram------------------ 54
12.3. Main Net (1/4) Section (Main P.C.B. (1/4))
Schematic Diagram (M)-------------------------------- 55
12.4. Main Net (2/4) Section (Main P.C.B. (1/4))
Schematic Diagram (M)-------------------------------- 56
12.5. Main Net (3/4) Section (Main P.C.B. (1/4))
Schematic Diagram (M)-------------------------------- 57
12.6. Main Net (4/4) Section (Main P.C.B. (1/4))
Schematic Diagram (M)-------------------------------- 58
12.7. AV I/O (1/4) Section (Main P.C.B. (2/4))
Schematic Diagram (AV)------------------------------- 60
12.8. AV I/O (2/4) Section (Main P.C.B. (2/4))
Schematic Diagram (AV)------------------------------- 61
12.9. AV I/O (3/4) Section (Main P.C.B. (2/4))
Schematic Diagram (AV)------------------------------- 62
12.10. AV I/O (4/4) Section (Main P.C.B. (2/4))
Schematic Diagram (AV)------------------------------- 63
12.11. Tuner Section (Main P.C.B. (3/4)) Schematic
Diagram (TU) --------------------------------------------- 65
12.12. Timer (1/4) Section (Main P.C.B. (4/4))
Schematic Diagram (T)--------------------------------- 67

3
12.13. Timer (2/4) Section (Main P.C.B. (4/4))
Schematic Diagram (T) ---------------------------------68
12.14. Timer (3/4) Section (Main P.C.B. (4/4))
Schematic Diagram (T) ---------------------------------69
12.15. Timer (4/4) Section (Main P.C.B. (4/4))
Schematic Diagram (T) ---------------------------------70
12.16. HDMI Schematic Diagram------------------------------71
12.17. USB SD Schematic Diagram --------------------------72
12.18. DV Jack Schematic Diagram --------------------------73
12.19. SW Schematic Diagram --------------------------------73
12.20. Front (L) Schematic Diagram--------------------------73
12.21. Front (R) Schematic Diagram -------------------------73
12.22. SATA Schematic Diagram------------------------------74
13 Printed Circuit Board-------------------------------------------75
13.1. Power P.C.B.-----------------------------------------------75
13.2. Main P.C.B. ------------------------------------------------76
13.3. HDMI P.C.B. -----------------------------------------------81
13.4. USB SD P.C.B. --------------------------------------------82
13.5. Front (L) P.C.B., Front (R) P.C.B., SW P.C.B.
and DV Jack P.C.B. --------------------------------------83
13.6. SATA P.C.B.------------------------------------------------84
14 Appendix for Schematic Diagram--------------------------85
14.1. Voltage and Waveform Chart--------------------------85
15 Exploded View and Replacement Parts List -----------93
15.1. Exploded Views -------------------------------------------93
15.2. Electrical Replacement Parts List --------------------96
16 Schematic Diagram for printing with A4 size -------- 104

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1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1MΩand 5.2MΩ.
When the exposed metal does not have a return path to the chassis, the reading must be .
1.1.2. Leakage Current Hot Check (See Figure 1 .)
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15μF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is
returned to the customer.
Fig. 1

5
1.2. Caution for AC Cord(For EH59GC only)

6
2Warning
2.1. Prevention of Electro Static Discharge (ESD) to Electrostatically Sensi-
tive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-
trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equiped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equiped with ES devices, place the assembly on a conductive surface such as alumin-
ium foil, to prevent electrostatic charge build up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder remover device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or compara-
ble conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient
to damage an ES device).

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2.2. Precaution of Laser Diode
CAUTION :
This product utilizes a laser diode with the unit turned "ON",
invisible laser radiation is emitted from the pick up lens.
Wave length : 662 nm(DVDs)/780 nm(CDs)
Maximum output radiation power from pick up : 100 μW/
VDE
Laser radiation from pickup unit lens is safety level, but be
sure the followings:
1. Do not disassemble the optical pickup unit, since radia-
tion from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit. It
was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pickup lens for a long time.
ACHTUNG :
Dieses Produkt enthält eine Laserdiode. Im eingeschalteten
Zustand wird unsichtbare Laserstrahlung von der Laserein-
heit abgestrahlt.
Wellenlänge : 662 nm(DVDs)/780 nm(CDs)
Maximale Strahlungsleistung der Lasereinheit : 100 μW/
VDE
Die Strahlungan der Lasereinheit ungefährlich, wenn fol-
gende Punkte beachtet werden:
1. Die Lasereinheit nicht zerlegen, da die Strahlung an der
freigelegten Laserdiode gefährlich ist.
2. Den werkseitig justierten Einstellregler der Lasereinhit
nicht verstellen.
3. Nicht mit optischen Instrumenten in die Fokussierlines
blicken.
4. Nicht über längere Zeit in die Fokussierlines blicken.

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2.3. Service caution based on Legal restrictions
2.3.1. General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that
of the normal solder.
Definition of PCB Lead Free Solder being used
Service caution for repair work using Lead Free Solder (PbF)
• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)
• To put lead free solder, it should be well molten and mixed with the original lead free solder.
• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.
• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the
lead free solder.
• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30 degrees
C (662±86°F).
Recommended Lead Free Solder (Service Parts Route.)
• The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01KS-----------(0.3mm 100g Reel)
RFKZ06D01KS-----------(0.6mm 100g Reel)
RFKZ10D01KS-----------(1.0mm 100g Reel)
Note
* Ingredient: Tin (Sn), 96.5%, Silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)

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3 Service Navigation
3.1. Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be followed by supplement service manual to be filled with original service
manual.
1) This service manual does not contain the following information, because of the impossibility of servicing at component level.
* Schematic Diagram, Block Diagram and P.C.B. layout of RAM/Digital P.C.B. Module.
* Parts List for individual parts of RAM/Digital P.C.B. Module.
* Schematic Diagram, Block Diagram and P.C.B. layout of RAM/Digital P.C.B. Module.
2) The following category are recycle module part.Please send them to Central Repair Center.
* RAM/Digital P.C.B. Module.
(EH59GA: RFKNEH59GA , EH59GC: RFKNEH59GC, EH59GN: RFKNEH59GN)
3.2. Caution for DivX
Please will always pass the customer “Warning for Customers Who Use the DivX Video-on-Demand content.” with the product and
get it when you unavoidably exchange EEPROM or P.C.B. including EEPROM (When the product is exchanged, it is the same.).
You must use print attached to service part (EEPROM or P.C.B. including EEPROM) or must use copy of print below as “Warning
for Customers Who Use the DivX Video-on-Demand content.”
Information needed without fail for the customer for whom it is used continuing DivX Video-on-Demand Service to “Manual for the
customer” is recorded.
Appendix:
* Parts that memorize user’s information are only EEPROM.
* The registration of Registration Code is possible for half a year up to 6 recorders up to 10 recorders a year.
Replacement of EEPROM or P.C.B. including EEPROM spends one of this.
Registration Code is memorized in EEPROM (RFKFxxxxxx).
Model without VHS; Main P.C.B.
Model with VHS; Digital I/F P.C.B. (Power & DVD I/F/P.C.B.)
If exchange above P.C.B. or EEPROM, new registration Code differ from previous Registration Code will be generated.
In this case if your customer uses DivX Video-on-Demand service, he/she will no longer be able to play any content that he/
she purchased under that same registration code.
Therefore your customer will need to obtain and register the new registration code.
*Copy this page and cut on the dotted line and give the lower half to your customer.
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Warning for Customers Who Use the DivX Video-on-Demand content.
1. The registration code has been changed for the repair of the product or the product exchange.
2. Obtain and register a new registration code, otherwise you will no longer be able to play DivX Video-on-Demand content.
3. Follow the procedure on the DivX Video-on-Demand web site to register at
http://vod.divx.com
* If you do not use the DivX Video-on-Demand content, please ignore this warning.

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4 Specifications
Power supply:
DMR-EH59GA/GC: AC220-240V 50/60Hz
DMR-EH59GN: AC220-240V 50Hz
Power consumption:
Power save mode: ON
OFF
Approx. 36W
Approx. 2W
Approx. 8W
Operating temperature: 5°C-40°C
Operating humidity range: 10% - 80%RH (no condensation)
Television system:
DMR-EH59GA
DMR-EH59GC
DMR-EH59GN
RF Converter output: Not provided
Video:
Video system(GA/GC): SECAM(only input)/PAL colour
signal, 625 lines, 50 fields
NTSC colour signal, 525 lines, 60
fields
Video system(GN): PAL colour signal, 625 lines, 50
fields
NTSC colour signal, 525 lines, 60
fields
Recording system: MPEG2 (Hybrid VBR)
Video In (GA/GC)
(SECAM/PAL/NTSC)
AV1/AV2 (21 pin), AV3/AV4 (pin
jack)
1Vp-p 75Ω, termination
Video In (GN)
(PAL/NTSC)
AV1/AV2 (21 pin), AV3/AV4 (pin
jack)
1Vp-p 75Ω, termination
S-Video In (GA/GC)
(SECAM/PAL/NTSC)
AV2 (21 pin), AV3/AV4 (S termi-
nal)
1Vp-p 75Ω, termination
S-Video In (GN)
(PAL/NTSC)
AV2 (21 pin), AV3/AV4 (S termi-
nal)
1Vp-p 75Ω, termination
Video Out (PAL/NTSC) AV1/AV2 (21 pin), Video Out (pin
jack)
1Vp-p 75Ω, termination
S-Video Out (PAL/NTSC) AV1 (21 pin), S-Video Out
(S terminal)
1Vp-p 75Ω, termination
RGB out (PAL/NTSC) AV1 (21 pin), 0.7Vp-p (PAL), 75Ω,
termination
Component video output
(NTSC 480P/480I)
(PAL 576P/576I)
Y: 1.0Vp-p 75Ω, termination
PB: 0.7Vp-p (PAL) 75Ω, termination
PR: 0.7Vp-p (PAL) 75Ω, termination
Recording time:
Approximate copying times (Max. speed):
NOTE)
The above rated value indicates the fastest time and speed
required for copying one-hour title from HDD to each disc in the
above list supporting High-Speed copying. The amount of time and
speed may vary depending on the conditions such as the area on
where information is written or unique feature on the disc.
*1: In this unit , copying with 16X Speed DVD-R disc will be per-
formed at the same speed as 12X Speed DVD-R disc takes.
*2: In this unit, copying with 8X Speed disc, DVD-R DL and +R Dl,
will be performed at the same speed as 4X Speed discs, DVD-R DL
and +R DL, takes.
*3: In this unit , copying with 6X Speed DVD-RW disc will be per-
formed at the same speed as 4X Speed DVD-RW disc takes.
*4: In this unit , copying with 16X Speed +R disc will be performed at
the same speed as 8X Speed +R disc takes.