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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.
r
SCHEMATIC DIAGRAM
D-E300AN/E301/E305/E307CK/E307CKT
r WAVEFORMS
1
SERVICE MODE during TRK servo OFF
5
2.6 Vp-p
3.9 Vp-p
4.32MHz
16.9 MHz
VOLT/DIV : 1 V AC TIME/DIV : 0.1msec
IC502 &ª
IC301 !§
VOLT/DIV : 1 V AC TIME/DIV : 50nsec
2
2.9 Vp-p
6
3.0 Vp-p
4.19MHz 136 µsec
ESP : OFF
VOLT/DIV : 1 V AC TIME/DIV : 50µsec
IC502 ^¢
IC801 @º
VOLT/DIV : 1 V AC TIME/DIV : 0.2msec
3
2.9 Vp-p
7
1.0 ± 0.2 Vp-p
22.7 µsec
ESP : OFF
VOLT/DIV : 1 V AC TIME/DIV : 10msec
IC502 ^�
IC501 @£
VOLT/DIV : 0.2 V AC TIME/DIV : 0.5msec
4
3.0 Vp-p
0.47 µsec
ESP : OFF
VOLT/DIV : 1 V AC TIME/DIV : 0.2msec
IC502 &º
Note :
� All capacitors are in µF unless otherwise noted. pF: µµF 50WV or less are not indicated except for electrolytics and tantalums. � All resistors are in and 1/4 W or less unless otherwise specified. � ¢ : internal component. Note : The components identified by mark ! or dotted line with mark !are critical for safety. Replace only with part number specified. � � Note : Les composants identifiés par une marque !sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. � Power voltage is dc 4.5 V and fed with regulated dc power supply from external power voltage jack (J401). � Voltage and waveforms are dc with respect to ground under no-signal conditions. no mark : STOP ( ) : PLAY � Voltages are taken with a VOM ( Input impedance 10M ). 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. : CD
B+
: B+ Line : adjustment for repair.
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