Apparatuur informatie

National NCL 2000 Versterker
Fabrikant:
National
Model: NCL 2000
Datum:
Categorie: Audio, Video, TV, Multimedia
Groep: Versterker
Beschrijving: Linear Power Amplifier
Informatie:
                                    

Deze handboeken zijn beschikbaar voor de bovengenoemde apparatuur:

National -- NCL 2000 -- Servicehandboek
Bestandsnaam: National-3885-Manual-Page-1-Picture
Manueel de Type: Servicehandboek
Pagina 's: 33
Grootte: 4.03 Mbytes (4230218 Bytes)
Taal: Engels
Herziening:
Handleiding-ID/Number:
Datum:
Kwaliteit: Gescand document alle leesbaar.
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MD5: 8f06f2e74f8582861d3a8cfb8e367ee6
Downloads: 468 Sinds 09 januari 2013
Informatie:
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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