Sony NTM-30 Service Manual Download | Manualshive

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MICROFILM

SERVICE MANUAL

SOUND-SENSOR NURSERY MONITOR

US Model

E Model

SPECIFICATIONS

NTM-30

Receiver

Transmitter

Ver 1.0 1999. 03

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Summary of Contents for NTM-30

Page 1: ...MICROFILM SERVICE MANUAL SOUND SENSOR NURSERY MONITOR US Model E Model SPECIFICATIONS NTM 30 Receiver Transmitter Ver 1 0 1999 03 ...

Page 2: ... terminals metal trim metallized knobs screws and all other exposed metal parts for AC leakage Check leakage as described below LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis must not exceed 0 5 mA 500 microampers Leakage current can be measured by any one of three methods 1 A commercial ...

Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 4: ...NET AC ADAPTER CORD SETTING Wind the AC adaptor cord to boss 2 time Note Follow the disassembly procedure in the numerical order given SECTION 2 DISASSEMBLY 1 two screws P2 6 12 1 two screws P2 6 12 2 rear cabinet AC adaptor cord boss ...

Page 5: ... 5 RECEIVER SECTION LOWER CABINET 2 claw 2 claw 1 two screws P2 6 12 1 two screws P2 6 12 3 lower cabinet ...

Page 6: ... with TP3 and TP4 and input the signal 7 Adjust RV102 for 2 5 kHz deviation reading on the modula tion meter 8 After adjustment take solder on BP1 and BP2 Transmitter Loading Coil Adjustment Setting CH switch S101 B Procedure Adjust L101 for maximum waveform on the oscilloscope AF OSC Signal level 57 dB 1kHz Set transmitter TX board TP4 TX board TP2 TX board TP3 TX board TP1 50 Ω frequency counter...

Page 7: ...hat the signal can be re ceived Set receiver FM RF SSG Carrier frequency 49 860 MHz Output level 0 5 µV 6 dBµV at no modulation level meter 8 Ω RX board TP2 speaker out RX board TP1 speaker out Set receiver FM RF SSG Carrier frequency 49 860 MHz Output level 0 125 µV 18 dBµV at no modulation RX board TP2 RX board TP1 Set receiver FM RF SSG Carrier frequency 49 860 MHz Output level 10 µV 20 dBµV at...

Page 8: ...OIL D102 POWER S101 CH ANT2 ANTENNA ANT1 ANTENNA QUAD 3 5 1 9 NF2 4 10 1 13 MIX IF AMP DET IC201 POWER AMP IC202 MIC AMP ALC IC101 TRANSMITTER SECTION RECEIVER SECTION MIX IN OSC IN N DET MIX OUT IF IN MIXER LOCAL OSC IF AMP L P F POWER AMP REGULATOR MIC AMP DET FILTER NOISE AMP NOISE DET QUADRATURE DET 16 3 AF OUT 9 FIL IN 8 5 CF201 455kHz CF202 455kHz RV202 VOLUME MIC101 MIC 7 6 5 B COMPARATOR I...

Page 9: ...tages and waveforms are dc with respect to ground under no signal conditions no mark TX Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path O TX Waveforms 1 Q103 EMITTER CH A T...

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Page 12: ...orms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path N RX IC Block Diagrams IC201 TA31136FN LOCAL OSCILLATION RSSI QUADRATURE DETECTION 1 2 3 4 5 6 7 8 9 10 16 15 14 13 12 11 NOISE AMP FILTER AMP IF AMP BUFFER MIXER DETECTOR NOISE COMPARATOR MIX IN GND N REC N DET RSSI IF OUT QUAD AF OUT OSC IN OSC OU...

Page 13: ... 6 11 2 1 7 D102 12 not supplied 1 3 033 237 01 CABINET FRONT TX 2 3 033 239 01 PANEL TX 4 3 033 240 01 COVER ANTENNA TX 5 3 033 243 01 COVER ANTENNA 6 7 685 136 14 SCREW P 2 6X12 TYPE2 NON SLIT 7 3 033 241 01 KNOB TX 8 A 3663 228 A TX BOARD COMPLETE Ref No Part No Description Remark Ref No Part No Description Remark 2 RECEIVER SECTION 63 A 3663 231 A RX BOARD COMPLETE 64 1 535 804 21 SNAP BATTERY...

Page 14: ...l resistors are in ohms METAL Metal film resistor METAL OXIDE Metal oxide film resistor F nonflammable Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when order ing these items SEMICONDUCTORS In each case u µ for example uA µA uPA µPA uPB µPB uPC µPC uPD µPD CAPACITORS uF µF COILS uH µH The components identified by mark or dotted li...

Page 15: ...1 216 099 00 METAL CHIP 120K 5 1 10W R219 1 216 097 00 RES CHIP 100K 5 1 10W R220 1 216 093 00 RES CHIP 68K 5 1 10W R221 1 216 107 00 METAL CHIP 270K 5 1 10W R222 1 216 097 00 RES CHIP 100K 5 1 10W R223 1 216 097 00 RES CHIP 100K 5 1 10W R224 1 216 073 00 METAL CHIP 10K 5 1 10W R225 1 216 109 00 METAL CHIP 330K 5 1 10W R226 1 216 097 00 RES CHIP 100K 5 1 10W R227 1 216 073 00 METAL CHIP 10K 5 1 10...

Page 16: ... COIL L101 1 416 990 11 COIL L102 1 414 141 11 INDUCTOR 0 82uH L103 1 414 141 11 INDUCTOR 0 82uH L104 1 414 141 11 INDUCTOR 0 82uH L105 1 411 808 11 COIL RF L106 1 419 113 11 COIL CHOKE TRANSISTOR Q101 8 729 800 15 TRANSISTOR 2SC2839TP D Q102 8 729 800 15 TRANSISTOR 2SC2839TP D Q103 8 729 800 15 TRANSISTOR 2SC2839TP D Q104 8 729 119 78 TRANSISTOR 2SC403SP 51 Q105 8 729 011 92 TRANSISTOR 2SC2001TP ...

Page 17: ...4 45 LED SLR 56MG3F GRN POWER BATT SP201 1 503 616 11 SPEAKER ACCESSORIES PACKING MATERIALS 1 473 646 11 ADAPTOR AC AC 902 3 865 983 11 MANUAL INSTRUCTION ENGLISH FRENCH SPANISH E 3 865 983 21 MANUAL INSTRUCTION ENGLISH US The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified TX Sony Corporation Personal A V Products Company 9 92...

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