TEAC |
MC-DX25
MICRO Hi-Fi SYSTEM
PC board shown are viewed from parts side. |
1 |
SPECIFICATIONS |
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The parts with no reference number or no parts number |
2 |
ADJUSTMENT AND CHECKS |
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in the exploded views are not supplied. |
3 |
EXPLODED VIEW AND PARTS LIST |
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As regards the resistors and capacitors, refer to the |
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circuit diagrams contained in this manual. |
4 |
PC BOARDS AND PARTS LISTS |
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! Parts marked with this sign are safety critical |
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WIRING DIAGRAM |
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components. they must be replaced with identical |
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6 |
INCLUDED ACCESSORIES |
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components - refer to the appropriate parts list and ensure exact replacement.
Parts of [ ] mark can be used only with the version designated.
MC-DX25
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1 SPECIFICATIONS |
Amplifier Section |
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Output Power (L+R) |
5W + 5W |
Output Power Subwoofer: 15 W |
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Input Sensitivity |
300mV |
Frequency Response : |
50 to 20,000 Hz |
Tuner Section (FM) |
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Frequency Range |
87.5 MHz to 108.0 MHz |
Sensitivity (S/N30dB) |
20dBuV |
Tuner Section (AM) |
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Frequency Range |
522 to 1620 kHz |
Sensitivity (S/N20dB) |
54dBuV/m |
CD Player Section |
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Frequency Responce |
20 to 20,000 Hz (+/-1dB) |
Signa-to-Noise Ratio |
55 dB |
Wow and Flutter |
Unmeasurable |
SPEAKER SYSTEM Section
L & R speaker :
Type :
Impedance :
Subwoofer:
Impedance :
GENERAL
Power Requirements:
Power Consumption:
Dimension (W x H x D ):
Weight: (net)
Standard Accessories:
Full range flat type 4 ohms
8 ohms
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 |
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Subwoofer |
160 x 234 x 330mm |
Main Unit |
1.15 kg |
L & R Speaker 0.6 kg(each) |
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Subwoofer |
5.4 kg |
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 |
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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 |
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FM |
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1.IFT adjustment |
10.7 MHz |
108MHz |
T205 |
With 10.7 MHz at |
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1kHz, +/-22.5kHz dev. |
zero crossover |
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2. FM band |
87.5MHz |
87.5MHz |
L202 |
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1kHz, +/-22.5kHz dev. |
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90MHz |
90MHz |
L201 |
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1kHz, +/-22.5kHz dev. |
Adjust for max. output |
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3. Tracking |
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and best waveform. |
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106MHz |
106MHz |
SVC201 |
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1kHz, +/-22.5kHz dev. |
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Repeat step 3 |
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AM |
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1. IF adjustment |
455kHz |
1620kHz |
T203 |
Center for max. output. |
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1kHz, 30% mod |
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2. AM band |
522kHz |
522kHz |
T206 |
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1kHz, 30% mod |
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600kHz |
600kHz |
AM ant coil (T204) |
Adjust for max. output |
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1kHz, 30% mod |
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3. Tracking |
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and best waveform. |
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1400kHz |
1400kHz |
SVC202 |
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1kHz, 30% mod |
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Repeat step 3 |
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2-3 CD SECTION
Auto alignment.
4
3. EXPLODED VIEWS AND PARTS LIST
EXPLODED VIEW - 1
MC-DX25
5
MC-DX25
EXPLODED VIEW-1
REF. NO |
PARTS NO. |
DESCRIPTION |
REMARKS |
1-1 |
56-04DX0150A030 |
FRONT CABINET |
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1-2 |
56-05DX0150A020 |
REAR CABINET |
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1-3 |
56-07DX01539000 |
CD BRACKET |
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1-4 |
56-07DX0154A000 |
FULL WALL PLATE-UNIT |
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1-5 |
56-07DX0155A000 |
FULL WALL PLATE-SPEAKER |
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1-6 |
56-14DX0150A050 |
CD DOOR |
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1-7 |
56-24DX01500000 |
CD DOOR GEAR |
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1-8 |
56-24DX01510000 |
STRAP GEAR |
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1-9 |
56-53DX0150A010 |
CD DOOR OPEN KNOB |
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1-10 |
56-53DX0151A000 |
CD KNOB |
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1-11 |
56-54DX0151A010 |
POWER KNOB-UNIT |
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1-12 |
56-57DX01510000 |
CD DOOR LENS |
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1-13 |
56-57DX01532000 |
REMOTE LENS |
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1-14 |
56-57DX01540010 |
DISPLAY LENS |
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1-15 |
56-57DX01559000 |
KNOB RING-L |
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1-16 |
56-57DX01569000 |
KNOB RING-R |
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1-17 |
56-760000000020 |
DOOR MOTOR PULLY |
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1-18 |
56-57DX0151A000 |
CD DOOR CHROME RING |
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1-19 |
56-07DX01569000 |
REMOTE BRACKET |
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1-20 |
56-07DX01579000 |
DISPLAY BRACKET |
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1-21 |
56-07DX01589000 |
RUBBER HOLDER |
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1-22 |
56-22DX0151B000 |
LIGHT COVER |
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1-23 |
56-57DX01520000 |
BACK LIGHT LENS-UNIT |
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1-24 |
57-262392590020 |
FILTER SHEET |
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1-25 |
58-262982300020 |
RUBBER FOOT-UNIT |
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1-26 |
58-43DX01500020 |
DRIVE BELT DIA31X1MM |
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1-27 |
58-44DX01500420 |
MOTOR 3V |
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1-28 |
58-58DX01500420 |
RUBBER RING DIA5.4X3X1MM |
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1-29 |
! 45-114200510008 |
AC CORD BS PLUG VDE APP CORD |
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1-30 |
58-61EX0M108120 |
SHOCK ABSORBER (GREY) |
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1-31 |
58-61MC23500020 |
SHOCK ABSORBER (GREY) |
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1-32 |
58-61MC23500120 |
SHOCK ABSORBER (BLACK) |
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1-33 |
61-11DX01500021 |
FERRUM PLATE (SCREW HOLE) |
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1-34 |
61-11DX01500121 |
FERRUM PLATE (HOLE) |
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1-35 |
61-11DX01500321 |
MOTOR BRACKET |
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1-36 |
61-11DX01500420 |
FERRUM PLATE - C |
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1-37 |
61-11DX01500520 |
FERRUM PLATE - D |
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1-38 |
61-68DX01500020 |
CD ALUM COVER |
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1-39 |
61-80DX01500020 |
FERRUM SHAFT 155X3MM |
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1-40 |
66-120226210321 |
MACHINE SCREW MS/BH 2.6X10MM |
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1-41 |
66-120320130321 |
MACHINE SCREW MS/PH 2X3MM |
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1-42 |
66-120526160311 |
MACHINE SCREW MS/KH 2.6X6MM |
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1-43 |
66-140220160321 |
SELF-TAPPING SCREW TA/BH 2X6MM |
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1-44 |
66-140226180321 |
SELF-TAPPING SCREW TA/BH 2.6X8MM |
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1-45 |
66-140226210321 |
SELF-TAPPING SCREW TA/BH 2.6X10MM |
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1-46 |
66-140520170121 |
SELF-TAPPING SCREW TA/KH 2X7MM |
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1-47 |
66-140326180321 |
SELF-TAPPING SCREW TA/BH 2.6X8MM |
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1-48 |
66-140526210321 |
SELF-TAPPING SCREW TA/KH2.6X10MM |
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1-49 |
20-70CMSM93B000 |
CD MECHANISM |
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1-50 |
05-01DX01500100 |
MAIN(TUNER) PCB ASSY |
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6
MC-DX25
EXPLODED VIEW-1
REF. NO |
PARTS NO. |
DESCRIPTION |
REMARKS |
1-51 |
05-05DX01500020 |
KEY/DISPLAY PCB ASSY |
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1-52 |
05-09DX01500010 |
HP/AUX PCB ASSY |
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1-53 |
05-30DX01510100 |
CD(MP3) PCB ASSY |
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1-54 |
19-50DX25M00000 |
SPEAKER BOX UNIT-R |
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1-55 |
19-50DX25M00001 |
SPEAKER BOX UNIT-L |
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1-56 |
56-58EX0M118000 |
LOGO BADGE - TEAC |
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1-57 |
58-262702250020 |
RUBBER FOOT SPK DIA7X2.5MM |
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1-58 |
56-57DX02509000 |
LIGHT LENS - SUBWOOFER BOX |
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1-59 |
48-16DX01500221 |
LED PCB ASSY |
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1-60 |
56-85DX0250A000 |
SUBWOOFER PANEL |
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1-61 |
56-87DX02508000 |
PLASTIC TUBE |
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1-62 |
58-263253150020 |
RUBBER FOOT DIA 25MM |
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1-63 |
58-73DX02500020 |
SUBWOOFER BOX |
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1-64 |
! 18-205DX0150120 |
H/TRANSFORMER EI66 230V/50HZ |
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1-65 |
19-021153300120 |
SPEAKER 8 OHM / 5W |
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1-66 |
41-172111000310 |
SWITCH |
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1-67 |
43-500000002020 |
AC CORD BUSHING |
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1-68 |
56-22DX01508000 |
PCB COVER |
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1-69 |
58-58DX01500320 |
CUSHION 106X40X1MM |
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1-70 |
61-11V600000020 |
PCB BRACKET |
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1-71 |
61-11V820010020 |
PCB FIX BRACKET - B |
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1-72 |
61-33DX02500020 |
SUB. REAR PANEL |
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1-73 |
61-48DX01500020 |
HEATSINK - A |
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1-74 |
61-48DX01500120 |
HEATSINK - B |
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1-75 |
66-140230210321 |
SELF-TAPPING SCREW TA/BH 3X10MM |
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1-76 |
66-141136216121 |
SELF-TAPPING SCREW TA/RH 3.6X16MM(BLK) |
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1-77 |
66-141430212121 |
SELF-TAPPING SCREW TA/BWH 3X12MM(BLK) |
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1-78 |
66-120240212121 |
MACHINE SCREW MS/BH4X12MM (BLK) |
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1-79 |
66-140230212121 |
SELF-TAPPING SCREW TA/BH 3X12MM (BLK) |
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1-80 |
66-140230214121 |
SELF-TAPPING SCREW TA/BH 3X14MM (BLK) |
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1-81 |
66-150230180123 |
HARDEN SCREW TTB 3X8MM AB (BLK) |
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1-82 |
66-120230160121 |
MACHINE SCREW MS/BH 3X6MM (BLK) |
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1-83 |
67-021400000020 |
NUT M4MM |
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1-84 |
68-112403101000 |
METAL WASHER 4X10X1MM |
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1-85 |
05-03DX01500000 |
STANDBY PCB ASSY |
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1-86 |
05-07DX01500010 |
SUBWOOFER POWER PCB ASSY |
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1-87 |
05-08DX01500010 |
RCA/D-S JACK PCB ASSY |
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1-88 |
56-43DX0150A000 |
REMOTE FRONT CABINET |
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1-89 |
56-43DX01518000 |
REMOTE REAR CABINET |
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1-90 |
56-44DX01508000 |
REMOTE BATTERY DOOR |
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1-91 |
57-33DX01500220 |
REMOTE PLATE (TEAC-RC970) |
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1-92 |
05-13DX01500000 |
REMOTE PCB ASSY |
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1-93 |
48-23DX0150022A |
CLOSE SW PCB ASSY |
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1-94 |
48-23DX01500220 |
OPEN SW PCB ASSY |
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7
MC-DX25
4 PC BOARDS AND PARTS LIST
MAIN (TUNER)PCB ASSY
REF. NO |
PARTS NO. |
DESCRIPTION |
REMARKS |
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05-01DX01500100 |
MAIN(TUNER) PCB ASSY |
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48-01DX01500224 |
MAIN(TUNER) PCB |
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BT201 |
31-058880000110 |
BAND PASS FILTER #GFMB3-SE |
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CF201,204 |
31-028107000120 |
FILTER LT10.7MA5 |
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CF203 |
31-026450010110 |
FILTER SFU450B |
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CF205 |
31-038107020120 |
FILTER JT10.7MG46-A |
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CF206 |
31-046456000220 |
RESONATOR ZTB456F15 |
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CN1 |
43-462103003320 |
D-S TERMINAL #DSW-31 |
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CN201,504 |
43-012200180120 |
WAFER 2MM 8 PIN |
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CN203 |
43-022250120120 |
WAFER 2.5MM 2PIN |
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CN501,505A,702 |
43-012200130120 |
WAFER 2MM 3 PIN |
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CN503 |
43-012200150120 |
WAFER 2MM 5 PIN |
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CN505B |
43-012200140120 |
WAFER 2MM 4 PIN |
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CN703 |
43-012250120120 |
WAFER 2.5MM 2PIN |
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D8 |
12-1N5822000021 |
RECTIFIER DIODE 1N5822 |
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D201-204,705 |
12-1N4148000021 |
DIODE 1N4148 |
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D601,602,708 |
12-1N4001000021 |
DIODE 1N4001 |
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IC202 |
16-LA1832000021 |
IC - LA1832 |
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IC203 |
16-LC7213100021 |
IC - LC72131 |
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IC204 |
16-BU1924F00021 |
IC - BU1924F |
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IC501 |
16-LC7534200021 |
IC - LC75342 |
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IC702 |
16-MC34063A0021 |
IC - MC34063A |
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IC703 |
16-SC1308000021 |
IC - SC1308-01 |
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JK201 |
43-421000003210 |
COAXIAL JACK IF-01A |
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L204 |
38-014100050020 |
AXIAL INDUCTOR 100UH |
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L205,404,406 |
38-013100050220 |
AXIAL INDUCTOR 10UH #EC-36 |
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L206, R241 |
38-013100050120 |
AXIAL INDUCTOR 10UH #EC24 |
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L701 |
38-104230050020 |
CHOKE COIL 230UH |
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L702 |
38-103200050020 |
CHOKE COIL 20UH |
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Q201-203,501,502,11-9014C0000021 |
TR - 9014C |
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Q705,706,715 |
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Q204,207,701 |
11-9015C0000021 |
TR - 9015C |
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Q205 |
11-9018F0000021 |
TR - 9018F |
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Q401,208,716 |
11-8050C0000021 |
TR - 8050C |
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Q703 |
11-KSD882Y00021 |
TR - KSD882Y |
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Q704 |
11-KSB772YS0021 |
TR - KSB772SY |
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Q712,713 |
11-8550C0000021 |
TR - 8550C |
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RF201 |
37-09A150000020 |
TUNER #FE450-G11 |
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SVC202 |
27-501802201020 |
TRIMMER 20PF |
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T203 |
40-02A049004020 |
IFT 7MM A049 - YELLOW |
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T204 |
40-023120000020 |
IFT 7MM 312A - BLACK |
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T206 |
40-02660R002020 |
IFT 7MM 660R - RED |
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VD203,204 |
12-SVC321SPA021 |
VARICAP DIODE SVC321SPA |
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X201 |
31-017450002030 |
CRYSTAL 4.5 MHZ |
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X202 |
31-017433202020 |
CRYSTAL 4.332MHZ |
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ZD202 |
12-011620320121 |
ZENER DIODE 6.2V |
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ZD401 |
12-011470320121 |
ZENER DIODE 4.7V |
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ZD701 |
12-012110320121 |
ZENER DIODE 11V |
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ZD702 |
12-011910320121 |
ZENER DIODE 9.1V |
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