There are currently no product reviews.
Very clear copy. No pages missing. Big bonus is that it includes supplement. Price is affordable compared to what others ask for.
Found the quality of the copy excellent and a very quick service. I would certainly recommend the service.
Good quality, clear diagrams. Exactly what I needed.
Good product. All the information is invcluded, but due to the complexity of the amplifier, it still is difficult to get it to operation again.
Very professional seller; very fast, accurate and rielable service.
ADJUSTMENT / è°æ´
Replacing Q22 (FET TX final)
1. Place Q22 in its location, upside down as shown in figure 1. Make sure the location of each pin is correct. The bevelled edge is located between pin 1 and 2. (See the figure below) Replace the heat conductor sheet (G11-2664-x4) when replacing Q22. TX-RX UNIT A/3 Foil side
TC2 TC1 1st IF
éç½®Q22 (FET åå°ç»ç«¯)
1. å¦å¾1æç¤ºï¼å°Q22ä¸ä¸é¢ åæ¾å¨å®çå¯¹åºä½ç½®ã æ¯ä¸ªç®¡èçä½ç½®ä¸å®è¦æ£ç¡®ãæè§ä½äºç®¡è1ä¸ç®¡è2ä¹é´ã ï¼å¦ä¸å¾æç¤ºï¼ å½ç½®æ¢Q22æ¶ï¼éç½®çå¯¼èï¼G11-2664-x4ï¼ã
Bevelled edge / æè§
Q22 D S G
Metal post éå±æ
Fig. 1 / å¾1
2. The bottom surface of Q22 must be firmly contacted to the TX-RX PCB. Solder each pin onto the top of the metal posts. Make sure the solder is between the pin and the metal post (Refer to figure 2). 2. Q22çåºé¨è¡¨é¢å¿
â¢ Make sure you are properly grounded while soldering the Q22. â¢ Avoid adding excess solder to the metal post. â¢ Make sure the bottom surface of Q22 is firmly contacted to the TX-RX PCB. â¢ The metal posts for the pins are also soldered to the PCB. So, when you solder the Q22 pins to the metal posts, keep the soldering time as short as possible so that the posts are not moved.
Excessive soldering / è¿åº¦çæ¥
â¢ â¢ â¢ â¢ å½çæ¥Q22æ¶ä¸å®è¦å°çåç¢¾ç£¨æ°å½ã é¿å
åéå±ææ·»å è¿å¤çåã Q22çåºé¨è¡¨é¢ä¸å®è¦ä¸åå°-æ¥æ¶PCBç´§å¯ç»åã ç®¡èæå¯¹åºçéå±æä¹è¦ä¸PCBçæ¥å¨ä¸èµ·ã æä»¥ï¼å°Q 2 2 ç®¡èä¸éå±æçæ¥èµ·æ¥æ¶ï¼å°½å¯è½ä½¿çæ¥æ¶é´ è¶çè¶å¥½ï¼è¿æ ·éå±æä¸æè¢«ç§»å¨ã
Good soldering / çæ¥è¯å¥½ Metal post / éå±æ PCB
Wrong! The bottom surface must be firmly contacted to the PCB. éè¯¯ï¼åºé¨è¡¨é¢å¿
Fig. 2 / å¾2