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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.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For schematic diagrams.
Note: � All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. � All resistors are in � and 1/4 W or less unless otherwise � � � � � specified. The resistance indicated MF shows tolerance 2%. ¢ : internal component. 1 : fusible resistor. 5 : fusible resistor. C : panel designation. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. � � � � U : B+ Line. V : B� Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. � : Can not be measured. � Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. � Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. � Circled numbers refer to waveforms. � Signal path. a : RF (AC-3) L : digital in c : digital out
WAVEFORMS � MAIN BOARD (1/4) �
1
5.6Vp-p 7.17MHz
IC423 %¡ (SCKR)
2
5.2Vp-p
4.18MHz
IC423 $ª (SCKT)
3
5.2Vp-p 3MHz
IC423 @¶ (EXTAL)
4
5.2Vp-p 129kHz
IC201 9 (FL-CLK)
5
4.6Vp-p 16MHz
For printed wiring boards.
Note: � X : parts extracted from the component side. � Y : parts extracted from the conductor side. � p : parts mounted on the conductor side. � ® : Through hole. � ¢ : internal component. � b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Side B) Parts face side: (Side A)
IC201 2 (XTAL)
6
5.6Vp-p
65kHz
IC301 @� (LRCK)
7
5.6Vp-p 4.16MHz
Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.
IC301 @¡ (BCK)
8
5.6Vp-p 8.32MHz
IC301 @º (FS128)
� 27 �
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