Toa WM-3210 Service Manual
Vhf wireless system
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Also See for WM-3210:
- Operating instructions (4 pages) ,
- Operating instructions (5 pages) ,
- Operating instructions (4 pages)
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Summary of Contents for Toa WM-3210
- Page 1 VHF WIRELESS SYSTEM No. 833-71-591-90...
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Page 6: Schematic Diagrams
MODEL WM-3210/3220 MODEL WM-3210/3220 SCHEMATIC DIAGRAMS WM-3210/3220 MAIN PCB When connecting to AF PCB When transmitting To CN2(AF PCB) on page 13 When detecting the reduced voltage - 11 - - 10 -... - Page 7 MODEL WM-3210/3220 MODEL WM-3210/3220 WM-3210/3220 AF PCB WM-3210 WM-3220 At switch OFF position CN4(MAIN PCB) on page 10 Bracket, earth DC voltages are measured with no signal in operation. DC voltages are measured with no signal in operation. - 13 -...
- Page 16 MODEL WM-3310/3310H MODEL WM-3310/3310H SCHEMATIC DIAGRAMS WM-3310/3310 MAIN PCB When connecting to AF PCB. When detecting the reduced voltage DC voltages are measured with no signal in operation. - 31 - - 30 -...
- Page 17 MODEL WM-3310/3310H MODEL WM-3310/3310H WM-3310 AF PCB DC voltages are measured with no signal in operation. DC voltages are measured with no signal in operation. - 33 - - 32 -...
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Page 24: Troubleshooting
MODEL WT-3800 MODEL WT-3800 TROUBLESHOOTING - 46 - - 47 -... -
Page 25: Schematic Diagram
MODEL WT-3800 MODEL WT-3800 SCHEMATIC DIAGRAM - 49 - - 48 -... -
Page 26: Mounting Diagrams
MODEL WT-3800 MODEL WT-3800 MOUNTING DIAGRAMS - 51 - - 50 -... - Page 32 MODEL WT-3810 MODEL WM-3810 RF Amp (3,4,5) AF switch(17) The RF signal from an antenna is supplied by M1. The LC filter connected to the M1 This is a CMOS analog switch that is controlled by the SQ control output signal. This switch turns on only input and other LC filter connected to the M1 output allow the required frequency band to pass through.
- Page 34 MODEL WT-3810 MODEL WM-3810 SCHEMATIC DIAGRAM - 67 - - 66 -...
- Page 35 MODEL WT-3810 MODEL WM-3810 MOUNTING DIAGRAMS - 69 - - 68 -...
- Page 38 MODEL WT-3810 MODEL WT-3810 EXPLODED VIEW AND PARTS LIST Ref. No. Part Code Description Ref. No. Part Code Description DUMMY-- DUMMY R106 112-80-385-8X 1608 10K(J) TAPING R107 112-80-385-8X 1608 10K(J) TAPING 112-06-686-6X EVM1SS 10kB 112-06-686-6X EVM1SS 10kB R109 112-80-385-8X 1608 10K(J) TAPING 115-46-075-3X M49-6.000-CL...
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Page 39: Specifications
MODEL WTU-3800 MODEL WTU-3800 BLOCK DIAGRAM AND CIRCUIT EXPLANATION 5. WIRELESS TUNER MODULE, WTU-3800 SPECIFICATIONS * 0 dB=1 V Power Requirement 7 – 12 V DC Current Consumption 100 mA Receiving Frequency 169 – 216 MHz, VHF Receiving System Double superheterodyne Receiving Sensitivity Better than 80 dB, S/N ratio (20 dBμV input, 40 kHz deviation) Antenna Input Impedance... - Page 40 MODEL WTU-3800 MODEL WTU-3800 RF Amp (3,4,5) AF switch(17) The RF signal from an antenna is supplied by M1. The LC filter connected to the M1 This is a CMOS analog switch that is controlled by the SQ control output signal. This switch turns on only input and other LC filter connected to the M1 output allow the required frequency band to pass through.
- Page 41 MODEL WTU-3800 MODEL WTU-3800 SCHEMATIC DIAGRAM - 81 - - 80 -...
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Page 45: Exploded View And Parts List
MODEL WTU-3800 MODEL YW-3500 TROUBLESHOOTING 6. WIRELESS DIPOLE ANTENNA, YW-3500 SPECIFICATIONS Power Source 8 – 10 V DC (supplied from amplifier or tuner) Current Consumption Under 24 mA Receiving Frequency 169 – 216 MHz Dipole Ratio Relative Gain 6 dB (including booster amplifier) V.S.W.R Under 2.6 Output Impedance...
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