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This service manual was determinant to enable to fix my Alpine Amplifier. I am pleased with my purchase. For a 5 star rating I would like to see a higher resolution scan of the printed circuit board lay-out because the gray scale grafics was dificult to see. Also some schematic diagrams were scanned at a slight angle. Never the less, it had all information I needed to troubleshoot and service my equipment.
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Complete manual, the good quality of reproduction allows enlarged print-out of the schematic diagram in the size it probably had in the original print edition and which is necessary for practical use.
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The service manual was complete and the components on the drawings very good visible.
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downloaded next day , manual is very helpful , fast and easy
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This Service Manual was exactly what I needed to repair my Philips TV. The purchase was convenient and I received the manual at the same day I paid for it.
5
6
7
8
A
C
When the Red and Blue LED are blinking
B
4
Check that the P/S output (PN203-9 pin) is high.
NO
Check the P/S output (PN203-9 pin) after replacing the SMPS Assy.
YES Check the AMP Assy
Check the 3.3 V line
5
+3.3 V is not output
Voltage of C39 is 0 V (TP9) Voltage of C39 is 5 V (TP9)
Go to
1
C
Replace the SMPS Assy +12 V is not output
2
+12 V or -12 V is not output
Replace the SMPS Assy
-12 V is not output Replace the SMPS Assy
3
+50 V is not output
D
Check the 50 V voltage by shortcircuiting the pins 6 and 8 of PN203 after separating the AMP Assy and SMPS Assy. NO Is the voltage of C26 (TP5) DC 18V or more? NO Replace the SMPS Assy
YES Replace the AMP Assy
YES
Replace the SMPS Assy
E
F
S-LX70W
5 6 7 8
17
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