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This comprehesive service maual was greatly appreciated, as was the digital download.
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Good en helpfull black and white scanned Srfvice manual of the Philps D8444. Quick service and delivery
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Scan was really good quality, easy to read, download easy
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very good manual as always. easy to read, detailed and includes schematic
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I'm very satisfied with your manual service. Your website made it easy to locate the correct manual. Also the quality is great and I never had a problem reading the fine details.
Thanks again.
Jeff Miller
JM Electronics
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Audio
A
No sound from the speakers Yes Are the SP cables properly connected? Yes Is sound muting set? Yes Is the volume set to 0? No Raise the volume then check again. No Connect the SP cables properly then check again.
No
Cancel muting then check again.
B
Yes AUDIO AMP Assy 2 3 Is a signal output from IC5003 Yes on the AUDIO AMP Assy? No AUDIO AMP Assy 1 Has the signal arrived at IC5003 on the AUDIO AMP Assy? No Yes Check around IC5003. Check the connection between the AUDIO AMP Assy and the SP Terminal Assy.
A
AV I/O Assy =
C
Is a signal output from IC7603 Yes on the AV I/O Assy? No Has the signal arrived at IC7603 on the AV I/O Assy? No Yes
Check around IC7605, IC7606, and IC7607 on the AV I/O Assy, and the connection between the AV I/O Assy and AUDIO AMP Assy. Is communication between IC7603 and the microcomputer OK? Yes Check around the IC7603. No
Check the communication line.
AV I/O Assy Is a signal output from IC7601 No on the AV I/O Assy? Yes Is IC7601 on the AV I/O Assy properly controlled by the microcomputer? Yes No Check the communication between IC7601 and IC7603.
D
Check the control line from the microcomputer.
Check the communication between each input terminal and IC7601.
E
F
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PDP-5004
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