Ranger_rciss 3900eghp Cb Tranciever_service Manual
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Page 11
- 10 - 4.0 REQUIRED TEST EQUIPMENT c DC Power Supply (13.8VDC, 10A) d RF Wattmeter (25~60 MHz, 50W) e Multimeter (Digital) f Automatic Modulation Meter g Audio Signal Generator h Frequency Counter (100 MHz) i RF Signal Generator (100 MHz) j Automatic Distortion Meter k Oscilloscope (50 MHz) l Sinad Meter 4.1 ALIGNMENT PROCEDURES This transceiver has been aligned at the factory and does not require any adjustments at installation. The required test equipment listed are used for the...
Page 12
- 11 - Modulation off.
Connect current meter to TP9(+) and TP8(-).
Connect current meter to TP9(+) and TP7(-).
VR11
VR10,VR20
20 mA
160 mA
SSB TX Power Set radio to A band, CH 1 USB TX mode.
Set Mic Gain Fully Clockwise.
Set RF POWER H/M/L switch to H position.
AF signal 30 mV, 1 KHz to microphone.
Connect “short PCB” to TP7, TP8 & TP9.
Connect RF Power Meter to antenna jack. L44,L42 Maximum Output
Set radio to F band, CH 40 USB TX mode. L40,L43 Maximum Output...
Page 13
- 12 - Set radio to D band, CH 1 AM RX mode. Set RF Gain Fully Clockwise. Set SQ Control Fully Counter Clockwise. Set NB-ANL/OFF switch to OFF position. Set VOL Control at 2 o’clock. Connect RF SG to antenna jack. Frequency 26.965 MHz, 1uV. Mod 30%. L3,L4,L6, L7,L8,L10, L11,L12 Audio Output > 2V S/N > 10 dB AM Sensitivity Set radio to A band, CH 1 AM RX mode. RF SG setting 25.615 MHz. Set radio to F band, CH 40 AM RX mode. RF SG setting 28.305 MHz. L7,L8 L7,L8 Balance between...
Page 14
- 13 - Figure 4-1 Transmitter test setup Figure 4-2 Receiver test setup SS-3900EGHP MAIN PCB ADJUSTMENT LOCATION
Page 15
- 14 - SS-3900EGHP CHAPTER 5 MAINTENANCE 7? 2))6(7 )0 02 5,=(5 %,$6),1$/ %,$6 60(7(5 $0 64 23
Page 16
- 15 - 5.0 PRECAUTIONS The inherent quality of the solid-state components used in this transceiver will provide many years of continuous use. Taking the following precautions will prevent damage to the transceiver. (i) Never key the transmitter unless an antenna or suitable dummy load is connected to the antenna receptacle. (ii) Ensure that the input voltage does not exceed 16 VDC or fall below 11 VDC. (iii) During alignment, do not transmit for more than 10 seconds at a time....
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- 16 - 6.0 GENERAL Information on most electrical and mechanical parts is included in the parts list. The reference designators are in alphanumeric order. 6.1 ORDERING REPLACEMENT PARTS Parts orders should be referred to the Parts Department at: • Ranger Communications, Inc. 401 W. 35 Th ST., # B, NATIONAL CITY, CA 91950-7909 Fax: (619) 426-3788 ROTARY SWITCH PCB (EPT360022Z)
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- 17 - (Component Side) PART LIST: SS-3900EGHP ROTARY SW P.C.B ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 1 EPT360022Z ROTARY SW PCB 2 R322,R323,R324 RCU141024Z C/F/R 1K Ω 1/4W 3 R315 RCM144714A C/F/R 470 Ω 1/4W 4 R313,R316,R317,R318,R319, R321 RCM141024A C/F/R 1K Ω 1/4W 5 R312,R314,R320 RCM141024B C/F/R 1K Ω 1/4W 6 CH SW EWRT32000S ROTARY SW GPS-0501 7 J304 EX07N40014 PCB CONN/S 10PIN 8 J305 WX01070703...
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- 18 - (Component Side) PART LIST: SS-3900EGHP DISPLAY P.C.B ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 1 EPT360032A DISPLAY PCB 2 DISPLAY PCB EX03N40003 LED DISPLAY (RED) 3 D309(R/T) EX01N40004 LED (RED/GREEN) ANT PCB (EPT360042Z)
Page 20
- 19 - (Component Side) (Copper Side) PART LIST: SS-3900EGHP ANT P.C.B ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 4 EPT360042Z ANT PCB 5 R9 RCY010004Z CHIP/F/R 0 Ω 0.1W 6 R1 RCY014714Z CHIP/F/R 470 Ω 0.1W 7 R3,R4 RCY011014Z CHIP/F/R 100 Ω 0.1W 8 R2 RCY013314Z CHIP/F/R 330 Ω 0.1W 9 R5,R11 RCY011024Z CHIP/F/R 1K Ω 0.1W 10 R10,R12 RCY012224Z CHIP/F/R 2.2K Ω 0.1W 11 R7 RCY011034Z CHIP/F/R 10K Ω 0.1W 12 C5 RCY011534Z CHIP/F/R...