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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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==============================================================================
K E N W O O D
>>> A M A T E U R R A D I O S E R V I C E B U L L E T I N <<<
==============================================================================
Kenwood Service Centers
Kenwood Service Corporation Kenwood Service Center, East
2201 East Dominguez Street 829 Lynnhaven Parkway, Suite 130
Long Beach, California 90801 Virginia Beach, Virginia 23452
Telephone 1-310-639-5300 Telephone 1-804-340-1702
==============================================================================
BULLETIN # 823
MODEL: R-1000
SUBJECT: Attenuator 10db Step Option
The RF Attenuator may be converted from the standard 20dB step to 10dB step
by replacing resistors on the RX unit X55-1250-00.
Replace With Type
R1 No Change
R2 R3 1.2K R (Radial)
R3 1.8K R
R4 R7 1.2K A (Axial)
R5 4.7K A
R6 15K R
R7 1.8K A
R8 1.2K R
R9 No Change
R10 R16 56 ohm A
R11 No change
R12 100 ohm R
R13 68 ohm A
R14 R13 220 ohm A
R15 820 ohm A
R16 100 ohm A
R17 No change
R18 R12 56 ohm R
Note: How to solder on the PC board.
1. Use a LOW WATTAGE PENCIL type iron, 35 w or less.
2. Use Rosin core solder, small diameter.
3. Do NOT create solder bridges or splotches.
4. Do NOT overheat or otherwise lift the foil from the board.
5. Was excess flux away with FRESH trichlor. and a small flux brush.
Neatness counts - It's your radio.