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- Very good scan quality, PERFECT!
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Wolfgang Sundhaus
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Good site, works ok and you get what you order, no problems experienced, got my manual within a day. A++++
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Original well scanned manual. Got the job done. Microwave problem found & corrected. For $5 and a new magnitron from ebay, it was a cheap and good the first shot fix. Electrical schematics allowed me to mage sure every thing else was ok before cutting and order for parts. Hard to live without.
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I was very skeptical of this website, I have never downloaded manuals before. I put it on the AMEX and payed through Paypal to ensure protection. I got the manual exactly as described and now I can replace the filter capacitor for this amp. Great Price, others selling for 12.99 or more and this is the same manual. I will search out this website for other manuals. Thank you
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Manual was reasonably easy to follow. I am not an engineer or know much about electronics but with the manuals help I was able to figure out the problem, identify the part required for the repair. Replacement part cost around $30. Whilst replacing the part I was telling myself, "this aint gonna work cos it seems far too easy". Took about 15 minutes to do and my plasma TV works a treat. Would never have been able to do this without the service manual.
3 . Connect the positive ( +) lead of the voltmeter to AlTP3 or AlTP2 on the HP 1653B, System Board Assembly.
on the HP 1652B,
4. Connect the power cord to HP 1652B/1653B and turn on the instrument. 5 . Assign pod 3 of the HP 1652B, or pod 2 of the HP 1653B, to a machine in the System Configuration menu by using front-panel knob and SELECT key. 6 . Press the CHAN/FORMAT key and set the User-defined pod threshold of the pod assigned in the previous step to -9.9 V. Refer to the following steps if you are unfamiliar with menus. a. Move cursor to the pod threshold field (TTL) with the front-panel knob and press SELECT. b. Move the cursor to User-defined with the front-panel knob and press SELECT. c. Use the front-panel keys to enter the value -9.9 V. Then move the cursor to Done and press SELECT. The voltmeter readout should indicate a voltage value within the range of 0.975 v to -1.005 v (0.990 v 20.015 V). Set the User-defined pod threshold of the pod assigned in step 6 to + 9.9 V. Note voltmeter readout. The voltage reading should be within the range of + .975 v to + 1.0005 v (+ .990 v to.015 v). 10. If either voltage reading is not within the given range, use the following procedure to adjust the threshold level. a. Turn off the instrument and disconnect the power cable.
Caution
Never attempt to remove or install any assembly with the instrument ON or the power cable connected. This can result in component damage. b . Remove the oscilloscope assembly by following the procedure �Removal and Replacement of the Oscilloscope Assembly� in section 6D . c. Loosen the two screws that hold the rear bracket on the oscilloscope assembly support panel until the bracket moves freely. d . Remove the support panel by carefully tilting the rear of the panel up and lifting the panel out through the top of the instrument cabinet. Make sure the metal tabs on the front of the support panel clear the front panel. e. Reconnect the power supply using the power supply cable (HP part number 54503-61604). f . Reconnect the disk drive assembly cable to the disk drive. g . Reinstall the oscilloscope assembly without the support panel to allow unabstracted access to AlR95. h . Reconnect the oscilloscope assembly to the system assembly with the appropriate cable.
HP 1652B/1653B Service Manual
Adjustments
and Calibration
47
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