File name Teac-MCDX25 micro sys.pdfTEAC
MC-DX25
MICRO Hi-Fi SYSTEM
PC board shown are viewed from parts side. The parts with no reference number or no parts number in the exploded views are not supplied. As regards the resistors and capacitors, refer to the circuit diagrams contained in this manual.
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1 SPECIFICATIONS 2 ADJUSTMENT AND CHECKS 3 EXPLODED VIEW AND PARTS LIST 4 PC BOARDS AND PARTS LISTS 5 WIRING DIAGRAM 6 INCLUDED ACCESSORIES
2 3 5 8 16 18
Parts marked with this sign are safety critical
components. they must be replaced with identical components - refer to the appropriate parts list and ensure exact replacement. Parts of [ ] mark can be used only with the version designated.
MC-DX25
1 SPECIFICATIONS
Amplifier Section
Output Power (L+R) 5W + 5W Output Power Subwoofer: 15 W Input Sensitivity 300mV 50 to 20,000 Hz Frequency Response :
Tuner Section (FM)
Frequency Range Sensitivity (S/N30dB) 87.5 MHz to 108.0 MHz 20dBuV
Tuner Section (AM)
Frequency Range Sensitivity (S/N20dB) 522 to 1620 kHz 54dBuV/m
CD Player Section
Frequency Responce Signa-to-Noise Ratio Wow and Flutter 20 to 20,000 Hz (+/-1dB) 55 dB Unmeasurable
SPEAKER SYSTEM Section
L & R speaker : Type : Impedance : Subwoofer: Impedance : Full range flat type 4 ohms 8 ohms
GENERAL
Power Requirements: Power Consumption: Dimension (W x H x D ): AC230V, 50 Hz 80 W (standby: less than 1.4W) Main Unit 160 x 226 x 86 mm
L & R Speaker 140 x 226 x 61mm Subwoofer 160 x 234 x 330mm
Weight: (net)
Main Unit Subwoofer
1.15 kg 5.4 kg
L & R Speaker 0.6 kg(each)
Standard Accessories:
Remote Control Unit x 1 Subwoofer Cable x 1 Speaker Cable x 2 FM Antenna x 1 AM Antenna x 1 Battery for Remote Control x 1 Wall Mount Adaptor x 3 Wall Mount screw x 10 Tape Plastic Wall Anchor x 10 Template for Wall Mounting x 1 Owner s Manual x 1 Warranty Card x 1
Design and specifications are subject to change without notice. Illustrations may differ slightly from production models. Weight and dimensions are approximate.
2
MC-DX25
2 ADJUSTMENTS AND CHECKS
2-1 TUNER SECTION
Use a screwdriver with a plastic or ceramic grip for all adjustment.
2-1-1 FM adjustment
1. Set the function switch to the FM position. 2. Connect the signal generator output through a 75 ohm dummy antenna to "ANT" on MAIN PCB. 3. Connect the oscilloscope to the speaker terminal. 4. Set the signal generator as listed in the alignment chart.
2-1-2 AM adjustment
1. Set the function switch to the AM position. 2. Connect the test loop antenna across the output of the signal generator. 3. Connect the oscilloscope to the speaker terminal. 4. Set the signal generator as listed in the alignment chart.
2-2 Adjustment and Test Points
T205
T203 L201
SVC201
T206
L202
T204
SVC202
MC-DX25 MAIN(TUNER) PCB
3
MC-DX25
2-2-1 FM/AM alignment chart
ITEM
SG SETTING
TUNER SETTING
ADJUSTMENT POINT
ADJUSTMENT
FM
1.IFT adjustment
10.7 MHz 1kHz, +/-22.5kHz dev.
87.5MHz 1kHz, +/-22.5kHz dev.
108MHz
T205
With 10.7 MHz at zero crossover
2. FM band
87.5MHz
L202
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