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The service manual was a copy of the original from Wirlpool. The quality was good, all neccecary information was available including the service-codenumbers, so I could order the right part to be replaced for repair.
Downloding was no probem after the payment.
Thanks for the service!
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Good,readable manual. I found other manuals that were not readable when it came to part ID, but the one downloaded from owner-manual.com was better than expected. I will do buisness with owner-manual.com again.
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Service Manual that I received was very helpful to me. Thank you.
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The manual is well organized and is easy to read. The chapters are following normal way to proceed.
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This scanned manual is well done in that most all the pages except for one is straight and clear- the way I would do them. One page was upside down but that happens. For the money that is charged on this site you get a pretty good deal. Now with complex repairs, I still prefer to us paper manuals which I have to buy at stereomanuals but the one I got here was much less than the $45 he was charging but this is a larger than normal manual for three different units. I am a picky manual user because I have used original manuals from Sony and Teac.
4-1. Check Items Before Starting Self-diagnostics
3. When the DE-55 board is suspected to be defective . Select an oscilloscope setup of 20 MHz with band-width limit: OFF. . Adjust the brightness of the incoming light until 400 mVp-p is obtained at TP401 and TP402. . The circuit stage up to TP141 must be diagnosed by observing the waveform of the carrier signal and by checking the operating condition with no input signal fed to the infrared transmitter. The circuit stages after that must be diagnosed by observing the demodulated waveform and by checking the operating condition with the color bar signal being input to the infrared transmitter. a) Check that the DC voltages that are supplied from the power supply to the respective blocks are correct or not. � When the DC voltages are normal, the voltages from MA-107/107P board are; TP491: 5 ± 0.5 V, TP391: 9 ± 0.5 V. � When DC voltages are abnormal; Soldering of CN101 is suspected to be defective, or flexible flat cable (FFC) has poor connection or is broken. b) Check DC voltage at L491 and check the signal flow from TP401 to TP404. [RF amplifier] � When the circuit is normal, the waveforms [No. 1 to No. 5] that are shown on page 4-21 can be obtained with no input signal fed to the infrared transmitter. � When the circuit is found abnormal; Resoldering the poorly soldered joint in the circuit block of Ref. 400 to Ref. 409. Replace the transistor as needed. c) Check DC voltage at L492 and check the signal flow from TP421 to TP424. [RF amplifier] � When the circuit is normal, the waveforms [No. 1 to No. 5] that are shown on page 4-21 can be obtained with no input signal fed to the infrared transmitter. � When the circuit is found abnormal; in the circuit block of Ref. 420 to Ref. 439. Replace the transistor as needed. d) Check DC voltage at L491. [ANALOG_5.9 V] � When the circuit is normal; 5.9 ± 0.5 V � When the circuit is found abnormal; Resoldering the poorly soldered joint in the circuit block in which abnormality has occurred. Replace the transistor Q901 or others as needed. e) Check Q110 for correct operation by observing the output waveform at TP101. [BUFFER] � When the circuit is normal, the waveform [No. 6] that is shown on page 4-21 can be obtained with no input signal fed to the infrared transmitter. � When the circuit is found abnormal; Resoldering the poorly soldered joint in the circuit block in which abnormality has occurred. Replace the transistor Q110 or others as needed. f) Check IC101 for correct operation by observing the output waveform at TP102. [LIMITTER] � When the circuit is normal, the waveform [No. 7] that is shown on page 4-22 can be obtained with no input signal fed to the infrared transmitter. � When the circuit is found abnormal; Resoldering the poorly soldered joint in the circuit block in which abnormality has occurred. Replace IC101 or others as needed.
4-18
PCS-1600/1600P
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