Radio Shack TRC-401 User Manual
Browse online or download User Manual for Radios Radio Shack TRC-401. Realistic TRC-457/458 Sams Photofact
- Page / 57
- Table of contents
- BOOKMARKS
- HOWARD W. SAMS 1
- 2
- RECEIVER ALIGNMENT 3
- RECEIVER ADJUSTMENTS 3
- TRANSMITTER ADJUSTMENTS 4
- TRANSMITTER ALIGNMENT 4
- ,CHASSIS 8
- TOP (TRC-457) 8
- 'I?? 11
- (TRC-457) 18
- Sams Photo 30
- LOGIC BOARD (TRC-457) 32
- From powt 46
- CircuiTra~ 46
Summary of Contents
NOTE Kepair or adjustment of trancn~ittrr ci1.1 uit~ must 1,e under supervision 01' a person wit11 first-or second-cla\s ratliotele- phone lice
@ @@ @ @ a 33 338 333 \ \\ \it t\\ 'I?? ?Sa 7
IMAIN BOARD I
A Howard W. Sams I!! ' Photo MAIIU BOARD
MAIN BOARD (TRC-457)
ALIGNMENT INSTRUCTIONS CAUTION: Use isolation transformer or observe polarity when connecting test equipment. Maintain line voltage at 120V AC
N BOARD
REALISTIC MODELS TRC-4571-458
maximum RF. 33.855MHz +20Hz. !.00 volts. I laximum RF. I .765MHz. annels , hart for uencies) . 76 75MHz. mnels. iart for A lencies) . .7625MHz. :q
Howard W. Sams Photo
A Howard W. Sarnr Photo ICLOCK LOGIC BOARD (TRC-457) ad
lr - TRANSMITTER ALIGNMENT - ,95Mt . -- , Connect an RF wattmeter and 50-ohm, 25-watt dummy load to antenna connector. NOTE: Be sure to check transm
From powt CircuiTra~
1 01s. nnel LED are the RF . maximum. fully i modula- 200mV. 1% modula- : POWER ,elow the scale of TRUTH CHART C 1 = 4.90 Volts 0 = 0 Volts H IC7
!% Located on bottom d chassis ,CHASSIS - TOP (TRC-457)
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