Motorola GP Series Service Information
Professional radio, lowband (29.7-42mhz and 35-50mhz)
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Also See for GP Series:
- Detailed service manual (494 pages) ,
- Service manual (300 pages) ,
- Service information (108 pages)
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Summary of Contents for Motorola GP Series
- Page 1 MOTOROLA Professional Radio GP Series...
- Page 2 Computer Software Copyrights...
- Page 3 Table of Contents Chapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS Chapter 2 THEORY OF OPERATION Chapter 3 TROUBLESHOOTING CHARTS Chapter 4 LOWBAND SCHEMATICS...
- Page 4 Chapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS GP340 / GP380 Model Chart Professional GP300 Series (LB) Description Model Item Description...
- Page 5 Technical Spécifications G eneral S p écificatio n s GP340 GP380 GP340 GP380...
- Page 6 Transmitter Receiver...
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Page 7: Theory Of Operation
Chapter 2 THEORY OF OPERATION Introduction Lowband Transmitter (Refer to Figure 2-1 and the Lowband Transmitter schematic diagram) Power Amplifier (PA) - Page 8 Antenna Switch Harmonie Filter Antenna Matching Network Power Control Integrated Circuit (PCIC) Temperature Cut Back Circuit...
- Page 9 Lowband Receiver (Refer to Figure 2-2 and the Receiver Front End and Receiver Back End schematic diagrams) Receiver Front-End (Refer to the Receiver Front End, Receiver Back end and Transmitter schematic diagrams)
- Page 10 Receiver Back-End (Refer to the Receiver Back End schematic diagram) Automatic Gain Control (AGC)
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Page 11: Frequency Generation Circuit
Frequency Generation Circuit Refer to Figure 2-3, the Synthesizer and Voltage controlled Oscillator schematic diagrams) - Page 12 Synthesizer...
- Page 13 Voltage Controlled Oscillator (VCO) (Refer to the Voltage Controlled Oscillator schematic diagram)
- Page 14 Chapter 3 TROUBLESHOOTING CHARTS Receiver (Sheet 1 of 2)
- Page 15 Receiver (Sheet 2 of 2)
- Page 16 Transmitter...
- Page 17 Synthesizer...
- Page 18 Voltage Controlled Oscillator...
- Page 19 Chapter 4 LOWBAND PCB/SCHEMATICS/PARTS LIST Allocation of Schematics and Circuit Boards Controller Circuits...
- Page 20 Lowband PCB 8485658Z03 / Schematics VIEWED FROM SIDE 1 SH400 VR502 VR500 R410 E407 E409 SH303 ПЛ PB503 PB502 R437 ш SH302 C303 R 3 15 Ш C309 SH301 FL301 Ш B504 B503 C308 L308 I — I R310 R302 VR501 пл...
- Page 21 VIEWED FROM SIDE 2 Lowband (30-50 MHz) Main Board Bottom Side...
- Page 22 Lowband (30-50 MHz) Receiver Overall Schematic...
- Page 23 Lowband (30-50 MHz) Receiver Front End...
- Page 24 Lowband (30-50 MHz) Receiver Back End...
- Page 25 4 — 4 — 4 — ч \— 4 — 4 — 4 — Q LU Ш1 ^ n d m u l t Q < CL CL Lowband (30-50 MHz) Synthesizer...
- Page 26 — J ж ж Л / W Lowband (30-50 MHz) Voltage Controlled Oscillator...
- Page 27 Г~> s w b + □ > - 1 _ 1 ^ — F D -----------* *------- F D — <ZH in j 3 < □ ------- F D - r s s i _1 < □ F D - <...
- Page 28 Lowband (30-50 MHz) Transmitter...
- Page 29 Lowband PCB 8485658Z03 Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Parts List Part No. Part No. Part No. Circuit Motorola Description Part No.
- Page 30 Circuit Motorola Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Description Part No. Part No. Part No. Part No.
- Page 31 Circuit Motorola Circuit Motorola Circuit Motorola Description Description Description Part No. Part No. Part No.