Оборудование информация

National NCL 2000 Усилитель
Производитель:
National
Модель: NCL 2000
Дата:
Категория: Аудио, видео, ТВ, мультимедиа
Группа: Усилитель
Описание: Linear Power Amplifier
Информация:
                                    

Эти руководства доступны для вышеуказанного оборудования:

Ручной тип: Руководство по техническому обслуживанию National-3885-Manual-Page-1-Picture
Страниц: 33
Размер: 4.03 Mbytes (4230218 Bytes)
Язык: английский
Редакция:
Руководство ID/номер:
Дата:
Качество: Отсканированы документу, все читается.
Дата загрузки:
MD5: 8f06f2e74f8582861d3a8cfb8e367ee6
Загрузки: 588 начиная с 09 Январь 2013
Информация:
GENERAL DESCRIPTION............................................................................................. 3 INSTALLATION ............................................................................................................. 4

2.1	CAUTION

2.2	Unpacking and Tube Installation

2.3	Power Connection

2.4	Antenna Connection

2.5	ALC Connection

2.6	Exciter Requirements

2.7	Exciter Connections

2.8	RF Exciter Connection (Transceiver)

2.9	RF Exciter Connection (Separate Transmitter and Receiver

With External Antenna Transfer Relay)

2.10	RF Exciter Connection (Separate Transmitter and Receiver

Without External Antenna Transfer Relay)

2.11	Relay Connection

2.12	Ground Connection

OPERATION.................................................................................................................... 8

3.1	Explanation of Controls

3.2	Preliminary Adjustment

3.3	CW Tune-Up Procedure

3.4	SSB Tune-Up Procedure

3.5	AM Tune-Up Procedure

THEORY OF OPERATION ........................................................................................ 12

4.1	Class of Operation

4.2	Grid Bias Supply

4.3	Input Circuit

4.4	ALC

4.5	Output Circuit

4.6	Metering

4.7	Primary Power Circuits

4.8	CW-SSB Mode Selection

4.9	Antenna and Transmit — Standby Switching

4.10	Cut-Off Bias

i SERVICE INSTRUCTIONS........................................................................................ 15

5.1	Tube Replacement

5.2	Filter Capacitor Board Removal

5.3	Cabinet Removal

5.4	Front Panel and Side Gusset Removal

5.5	Regulator Transistor Change

5.6	Air System Cleaning

5.7	Grid Resistor Tap Change

i TROUBLE SHOOTING............................................................................................... 17 1 PARTS LIST
National-3885-Manual-Page-1-Picture


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