Yaesu FT-897 Émetteur-récepteur
Fabricant:
Modèle:
FT-897
Date:
2002
Catégorie:
Groupe:
Description:
HF/VHF/UHF ALL MODE Transceiver
manuel de réparation
Type manuel:
manuel de réparation
Pages:
85
Taille:
11.43 Mbytes (11987307 Bytes)
Langue:
english
Révision:
Manuel-ID:
Date:
Qualité:
Électronique de documents, numérisation sans, bien lisible.
Date de transfert:
27 juillet 2014
MD5:
df258695ee513742e48bc41d1cc97de5
Téléchargements:
565

Information

This manual provides technical information necessary for servicing the FT-897 HF/VHF/UHF ALL MODE Transceiver. Servicing this equipment requires expertise in handling surface-mount chip components. Attempts by non-qualified persons to service this equipment may result in permanent damage not covered by the warranty, and may be illegal in some countries. Two PCB layout diagrams are provided for each double-sided circuit board in the Transceiver. Each side of is referred to by the type of the majority of components installed on that side (“leaded” or “chip-only”). In most cases one side has only chip components, and the other has either a mixture of both chip and leaded components (trimmers, coils, electrolytic capacitors, ICs, etc.), or leaded components only. Specifications ... 2 Exploded View & Miscellaneous Parts ... 4 Block Diagram ... 5 Circuit Description ... 7 Alignment ... 10 Board Unit (Schematics, Layouts & Parts) MAIN Unit ... 21 PLL Unit ... 53 PA Unit ... 59 PANEL Unit ... 73 MIC Unit ... 81 VR Unit ... 82 BATT-CONN Unit ... 83 REF Unit ... 84

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