Panasonic DMR-ES35VGN User manual

©2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
DMR-ES35VGN
DMR-ES35VGC
DMR-ES35VGCS
DMR-ES35VEE
Vol. 1
Colour
(S).......................Silver Type
DVD Recorder
ORDER NO. MD0605164CE

1 Safety Precautions 3
1.1. GENERAL GUIDELINES 3
1.2. Caution for AC Mains Lead (For GC only) 4
1.3. Before Repair and Adjustment 5
1.4. Protection Circuitry 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 6
3 Precaution of Laser Diode 7
4 Handling the Lead free Solder 8
4.1. General description about Lead Free Solder (PbF) 8
5 Service Navigation 9
5.1. Service Information 9
5.2. CAUTION FOR DivX 9
6 Specifications 10
7 Accessories 14
8 Operation Instructions Procedures 16
8.1. Remote Control Operation (For GN/GC/GCS) 16
8.2. Remote Control Operation (For EE) 17
8.3. Main Unit Operation 18
8.4. Main Unit Panel Display 19
8.5. Disc Information 20
8.6. ABOUT DivX 25
8.7. Connection to other Devices 31
8.8. Connection to other Devices 33
9 Operation Instructions 35
9.1. (DVD) Taking out the Disc from RAM-Drive Unit when the
Disc cannot be ejected by OPEN/CLOSE button 35
9.2. (VHS) Removing Cassette Tape manually 36
10 Service Mode 38
10.1. (DVD) Self-Diagnosis and Special Mode Setting 38
10.2. (VHS) Self-Diagnosis and Special Mode Setting 46
11 Service Fixture & Tools 49
12 Assembling and Disassembling 50
12.1. Caution 50
12.2. Disassembly Flow Chart 51
12.3. Main Parts Location Diagram 52
12.4. Caution with inserting cassette tape when disassembling
the unit 53
12.5. Disassembly of Top Panel 54
12.6. Disassembly of Nicam Decoder P.C.B. 54
12.7. Disassembly of Front Panel 55
12.8. Disassembly of Front Jack P.C.B. & Panel P.C.B. 55
12.9. Disassembly of RAM / Digital P.C.B. Module 56
12.10. Disassembly of DV Jack P.C.B. 57
12.11. Disassembly of VTR Mechanism Unit 58
12.12. Disassembly of Rear Panel 59
12.13. Disassembly of Fan Motor 59
12.14. Disassembly of Digital I/F P.C.B. 59
12.15. Main P.C.B. 60
13 Measurements and Adjustments 61
13.1. Service Positions 61
13.2. Caution for Replacing Parts 64
13.3. Standard Inspection Specifications after Making Repairs
69
14 Miscellaneous 71
14.1. Abbreviations 71
15 Voltage Measurement and Waveform Chart 77
15.1. Voltage Measurement 77
15.2. Waveform Chart 82
16 Wiring Diagram 85
17 Block Diagram 87
17.1. Analog Audio Block Diagram 87
17.2. Analog Timer Block Diagram 88
17.3. Analog Video Block Diagram 89
17.4. Power Supply Block Diagram 91
17.5. System Control & ServoBlock Diagram 93
18 Notes of Schematic Diagram 95
19 Schematic Diagram 97
19.1. DIGITAL IF CIRCUIT 97
19.2. MAIN CIRCUIT 102
19.3. PANEL CIRCUIT 115
19.4. FRONT JACK CIRCUIT 116
19.5. NICAM DECODER CIRCUIT 117
19.6. DV JACK CIRCUIT 118
20 Printed Circuit Board 123
20.1. DIGITAL I/F P.C.B 123
20.2. MAIN P.C.B 124
20.3. PANEL P.C.B, FRONT JACK P.C.B, NICAM DECODER
P.C.B and DV JACK P.C.B 125
21 Exploded Views 127
21.1. Casing Parts & Mechanism Section1 127
21.2. Casing Parts & Mechanism Section 2 128
21.3. VHS Mechanism Section 129
21.4. Packing 130
22 Replacement Parts List 131
CONTENTS
Page Page
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

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, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
3. After servicing, check for leakage current checks to prevent 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. Using an ohmmeter measure the resistance value, 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 5.2Ω.
When the exposed metal does not have a return path to the chassis, the reading must be .
Figure. 1
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. should the 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.
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

1.2. Caution for AC Mains Lead (For GC only)
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

1.3. Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C11101, C11104, C11105 and C11106 through a 10Ω, 1W resistor to
ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
1.4. Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
· No sound is heard when the power is turned on.
· Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
"shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called
Electrostatically 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 electro static 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 aluminium
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 removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge 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
comparable 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 (ESD)
sufficient to damage an ES device).
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

3 Precaution of Laser Diode
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

4 Handling the Lead free Solder
4.1. 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
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)
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.
RFKZ03D01K-----------(0.3mm 100g Reel)
RFKZ06D01K-----------(0.6mm 100g Reel)
RFKZ10D01K-----------(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%
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

5 Service Navigation
5.1. Service Information
5.2. CAUTION FOR DivX
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

6 Specifications
(For GN/GC/GCS)
10
DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

11
DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

(For EE)
12
DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

13
DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

7 Accessories
Note : Refer to Replacement Parts List (Section 22) for the part number.
Remote control (For
GC/GCS)
Remote control (For
GN)
Remote control (For
EE)
AC Cord (For GN)
AC Cord (For
GC/GCS/EE)
AC Cord (For GC)
RF coaxial cable
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

Audio/Video cable
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

8 Operation Instructions Procedures
8.1. Remote Control Operation (For GN/GC/GCS)
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

8.2. Remote Control Operation (For EE)
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

8.3. Main Unit Operation
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

8.4. Main Unit Panel Display
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE

8.5. Disc Information
8.5.1. Discs for recording & play
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DMR-ES35VGN / DMR-ES35VGC / DMR-ES35VGCS / DMR-ES35VEE