Super Star 4900B User Manual

Super Star 4900B Service Manual
This is a on going project to document the Superstar 4900B. I started working on this manual Dec 2000. You can display
and print it but publication on the web and commercial use are not allowed.
If you have test equipment and a 4900B or can help in technical writing and/or research and would like to help on this
project go to the CBTricks Message Board and look for the Superstar documentation Discussion Group.
This manual is by no way complete.
Rev. History
Rev. # 1.0
(a) Put up on the site
Rev. # 1.1
(a) Worked on the Alignment hook-up diagrams.
(b) Put the parts lists with the board layouts
(c) Made a change to alignment layout
(d) Put a picture of the radio on first page.
(e) Schematic of the ASC PCB.
Rev. #1.2
(a) Schematic of MIC PCB
(b) Board Layouts MIC PCB
(c) AMC Mod Information
Next I need to work on the following sections.
Alignment Procedure
Export Frequency Modification
Parts List
Circuit descriptions
Semiconductor Information
Index page and index all the pages
www.CBTricks.com

Super Star 4900B Specifications

General

Brand	Super Star
Model	4900B
Category	Radio
Language	English

Summary

SPECIFICATIONS

GENERAL

Specifications for frequency, power, temperature, and impedance.

RECEIVER SECTION

Receiver performance metrics like sensitivity and S/N ratio.

TRANSMITTER SECTION

SEMICONDUCTORS AND FUNCTION

SS4900 ADJUSTMENT LOCATIONS

ALIGNMENT PROCEDURE

PHASE LOOKED LOOP AND CPU SECTION

Step-by-step guide for CPU/PLL alignment.

TRANSMITTER SECTION

Step-by-step guide for transmitter section alignment.

RECEIVER SECTION

Step-by-step guide for receiver section alignment.

SQUELCH ADJUSTMENT

Procedure for adjusting the squelch control.

SIGNAL METER ADJUSTMENT

Procedure for adjusting the signal meter.

ASC ADJUSTMENT

Procedure for adjusting the ASC circuit.

SS4900 AMC LIMITER MODIFICATION

EXPORT FREQUENCY MODIFICATION

SEMICONDUCTOR LEAD IDENTIFICATION AND INTERNAL DIAGRAMS: IC'S

IC-1 NJM324 M AND MC3361 (SMD)

IC-2 KIA324F AND KIA4558F

IC-5 KS58015 AND KT3170

IC-7 TMP87CM21DF

IC-8 X24C02

IC-9 LC7152M

IC-10 78L05 AND IC-11 KIA7217AP

IC-12 TDA6130-5, IC-13 KIA7045F, IC-14 KIA7810

SEMICONDUCTOR LEAD IDENTIFICATION AND INTERNAL DIAGRAMS: TRANSISTORS

SMT TRANSISTORS (SOT23)

TO-3P TRANSISTORS (KTA1940, 2SC 1969, 2SC 2166)

SEMICONDUCTOR LEAD IDENTIFICATION AND INTERNAL DIAGRAMS: DIODES

SOT-23 DIODES

ASC PCB SCHEMATIC DIAGRAM

SUPERSTAR 4900 MIC PCB SCHEMATIC DIAGRAM