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Vhong Radio Communication

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Vhong Radio Communication

Repeater Builder ,Antenna maker ,CCTV Installer, Radio Technician & build some electronic project...
(6)

30/07/2025

POC Radio... On going repair🔧
Kirisun T60

Issue: No signal & no power...

29/07/2025

IC-V8000 on going repair

Issue : Weak RX sensitivity & no TX response on Display

Soon upload Repair tips...

26/07/2025

Lf.. front panel ft2900 & mainboard ng DR-735 kahit sira for parts baka dian hanap ko parts.. Pm mo ko usap tayo...ty

26/07/2025

Yung dipa tapos pending na gawa may dumating ulit.. Nagkasabay-sabay pa kaya pa ba VRC? 👍💪 Kayang kaya po hwag Lang po mag madali guys maayos natin yan...

Repair from Luzon, Visayas & Mindanao...

25/07/2025

Madalas masira sa MagOne VZ20/VZ28 pag wala TX output.

Part no. - SX5 RF FINAL

The "SX5 rf final specifications" likely refers to the specifications of a radio frequency (RF) integrated circuit, specifically found in a SOT-89 package. This component is used for high-frequency control and is designed for easy integration into various electronic systems.
Here's a breakdown of the key specifications and details:

General Specifications:
Type: RF Integrated Circuit
Package: SOT-89
Frequency: High-frequency control
Operating Voltage (VDD): 12.5 Vdc
Operating Temperature Range: -40 to +150 °C
Specific Features (from various sources):

Wideband RF Power Amplifier:
The AFT05MS004N is a wideband RF power amplifier, operating at 136-941 MHz and capable of delivering 4W at 7.5V.

25/07/2025

DAIWA ECHO CHAMBER
Model : ES-880 on going repair..

Issue: echo not function.

24/07/2025

Kadalasan problema ng mga ganito ptt switch
Sa mga Radio natin...mahina ba hinang or sad yang mabigat lang kamay ng gumagamit.

24/07/2025

Repack muna tayo battery.. FNB-83 para saan kaya radyo itong battery pack guys?

23/07/2025

ATM:
Repairing 4 units Motorola GP88S

23/07/2025

Icom IC-02AT repair update repair tips...

Issue: No RX audio

Workdone:
- insert external speaker.. if same issue, maybe internal speaker is ok also.. But.
- open radio internal board & double check internal speaker if okey..
- proceed on mainboard AF Section (need schematic diagram for guide)
- Check first audio output capacitor filter (see picture above) 👇if okey
- proceed tracing AF power amp. transistor Q116, Q117, Q119, Q120 & Q112 voltage checking on circuit.(see schem. diagram)
- I found out that no 5v going to Q118.
- checking Q120 is short (replace good transistor) test unit same issue.... then proceed voltage checking..again
- checking resistor R152 going to Q118 trace open (replace good resistor) test.. Same issue..
proceed to Q118 check open transistor (replace good transistor)

Test repair... Done

22/07/2025

Testing VRC Dispatch (global ptt)

21/07/2025

Icom IC-02AT repair

Issue: No RX Audio
....... On going repair, soon upload Repair tips

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