Harman kardon dpr 1001 service manual

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harman/kardon

DPRI DDI

DIGITAL PATH AUDIO/VIDEO RECEIVER

SERVICE MANUAL

CONTENTS

ELECTROSTATICALLYSENSITIVE DEVICES ............... 2 EXPLODED VIEW PARTS LIST ........................ 23
LEAKAGE TESTING ............................................ 3 BLOCK DIAGRAM ............................................. 24
SPECIFICATIONS ............................................ 4 TECHNOLOGY OVERVIEW .............................. 25
DETAILED SPECIFICATIONS ..5 POWER SUPPLY (SMPS).........

FRONT PANEL CONTROLS .............................. 14 TUNER SCHEMATICS/SPECS ......................... 47
FRONT PANEL CONNECTIONS ....................... 15 PCB DRAWINGS ................................................ 52
REAR PANEL CONTROLS ........ ....16 MECHANICAL PARTS LIST ...72
REAR PANEL CONNECTIONS. ..... 17 ELECTRICAL PARTS LIST. ..74
MAIN REMOTE CONTROL FUNCTIONS ...18 SEMICONDUCTOR DATA.. ..107
TROUBLESHOOTING GUIDE................. .21 SCHEMATICS ............... ..143
PROCESSOR RESET ..... .21 WIRING DIAGRAM... ..164
UNIT EXPLODED VIEW ..................................... 22 PACKAGING .............................................. 165

harman/kardon, Inc.

250 Crossways Park Dr.
Woodbury, New York 11797 Rev1 1/2006

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DPR1001 harman/kardon
ELECTROSTATICALLY SENSITIVE (ES) DEVICES

Some semiconductor (solid state) devices can be damaged easily by static 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 static electricity

1. Immediately before handling any semiconductor component or semiconductoreequipped assembly. drain off any electrostatic charge on
your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,
which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices. place the assembly on a conductive surface such as aluminum foil, to
prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a groundedetip soldering iron to solder or unsolder ES devices.

4. Use only an antiestatic solder removal device. Some solder removal devices not classified as antistatic" can generate electrical charges
sufficient to damage ES devices.

5. Do not use freonepropelled chemicals. These can generate electrical change 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. aluminum 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 installed2
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

or your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an E3 devices

PRODUCT SAFETY NOTICE DPR1001

Each precaution inthis manual should be followed during servicing

Components identified with the IEC symbolAin the parts list are special significance to safety. When replacing a component identified with
A, use only the replacement parts designated, or parts with the same ratings or resistance, wattage. or voltage that are designated in the
parts list in this manual. Leakage»current or resistance measurements must be made to determine that exposed parts are acceptably

insulated from the supply circuit before returning the product to the customer.