FLUKE 87_89iv_sm 电路图.pdf

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1、Manual Supplement 2000 Fluke Corporation. All rights reserved. Printed in the U.S.A. Manual Title:87 & 89 Series IV ServiceSupplement Issue:6 Part Number:676137Issue Date:9/00 Print Date:May 1999Page Count:2 Revision/Date: This supplement contains information necessary to ensure the accuracy of the

2、above manual. Enter the corrections in the manual if either one of the following conditions exist: 1.The revision letter stamped on the indicated PCA is equal to or higher than that given with each change. 2.No revision letter is indicated at the beginning of the change. RadioFans.CN 收音机爱 好者资料库 87 &

3、 89 Series IV Service Manual Supplement 7/001 Change #1 On page 21, Table 4, step 50, under Display, Change: -0.02 0.02 To: -0.20 0.20 Change #2 On page 28, Table 6, make the following changes: Change:Access Door, Battery/Fuse MP 14658446 1 To:Access Door, Battery/Fuse MP 14 666446 1 Add: CSA LabelM

4、P336698841 Shock Absorber for Battery DoorMP276748501 Change #3 On page 20, Table 4, make the following changes: Change the Upper Display Limit for step 38, From 0.8000 To:1.1000 Change the Lower & Upper Display Limits for step 25, From:946.01054.0 To:936.01064.0 On page 21, Table 4, change the Lowe

5、r & Upper Display Limits for step 51, From:0.24220.2578 To:0.24420.2558 Change #4 On page 19, Table 4, change the Lower & Upper Limits for step 13: From:29.6330.37 To:29.6630.34 Change #5 On page 6, under AC Voltage and Decibel Specifications, make the following changes: Add:AC mV 1,2 50.000mV 0.001

6、 mV 0.4 % + 40 2 % + 80 5 % + 405 % + 40 15 % + 40 Change: dBm 600 -56 to -6 0.01 dB 0.1 dB 0.2 dB 0.5 dB 0.5 dB 0.5 dB To:dBm 600 -56 to -6 0.01 dB 0.1 dB 0.2 dB 0.5 dB 0.5 dB 2.0 dB On page 7, under DC Current Specifications, add the following: DC mV50.000 mV0.001 mV0.1% + 20 RadioFans.CN 收音机爱 好者资

7、料库 Manual Supplement87 & 89 Series IV Service 29/00 Change #6 On page 6, under AC Voltage and Decibel Specifications, under 20-100 kHz column for AC mV and AC V change all occurences, From: 6 % + 40 To:8 % + 40 On page 19, Table 4, change the Lower & Upper Limits for steps 1,3,6, and 11 to: LowerUpp

8、er LimitsLimits Step 10.22600.2740 Step 34.59605.4040 Step 645.96054.040 Step 11 2756.03244.0 Change #7 On page 17, under Performance Tests, and on page 22 prior to Keypad Interface, add the following: Setup To obtain the best noise rejection ratios use the Setup mode to select 50 or 60 Hz to match

9、local Line/Main frequency. This should be done prior to performance testing or calibration. Change #8 On page 8, under, Frequency, Duty Cycle, Pulse Width Specifications, replace the entire Pulse Width entry with the following: Pulse Width 2 50.00 ms0.01 ms (3% X (voltage range/input voltage) + 1 count) RadioFans.CN 收音机爱 好者资料库