CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NO T REMO V E COVER (O R B A C K ). NO US E RSE RVI CEABLE PAR TS INS IDE . REFE R SERV ICI NG TO
QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within
an equilateral triangle, is intended to alert the user
to the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
1 SAFETY INFORMATION
2
Optical pickup :
Type : SF-P200Z
Manufacturer : SANYO ELECTRIC CO., LTD.
Laser output : Less than 0.5 mW on the objective lens
Wavelength : 765 - 815 nm
2 SPECIFICATIONS
MC-DX50i
AMPLIFIER section
Output Power (L+R) 5 W + 5 W
Output Power (Subwoofer) 15 W
Input Sensitivity 300 mV
Frequency Response 50 to 20,000 Hz
TUNER Section (FM)
Frequency Range 87.50 to 108.00 MHz
Sensitivity (S/N30dB) 20 dBμV/m
TUNER Section (AM)
Frequency Range 520 to 1,710 kHz
Sensitivity (S/N20dB) 54 dBμV/m
CD PLAYER Section
Frequency Response 20 to 20,000 Hz (±1 dB)
Signal-to-Noise Ratio 55 dB
Wow and Flutter Unmeasurable
SPEAKER
Type Full range flat type
Impedance 4 ohms
SUBWOOFER
Impedance 8 ohms
GENERAL
Power Requirements 120 V AC, 60 Hz
Power Consumption 80 W
Standby Power Consumption 2.5W
Dimension (W x H x D)
Main Unit 6 3/4” x 10 1/8” x 6 1/8”
(170 x 255 x 155 mm)
L & R Speakers 6” x 10 1/8” x 3 1/4”
(150 x 255 x 81 mm)
Subwoofer 6 3/8” x 9 3/4” x 11 7/8”
(160 x 245 x 300 mm)
Weight
Main Unit 2.1 lbs (1.2 kg)
L & R Speakers 1.6 lbs (640 g) each
Subwoofer 11 lbs (5.0 kg)
Standard Accessories
Standard Accessories
Remote Control Unit (RC-1185) x 1
Battery for Remote Control Unit x 1
Dock adapter x 3
(adapter 60GB (color) + Photo 40GB/60GB premounted)
Subwoofer Cable x 1
Speaker Cable x 2
FM Antenna x 1
AM Antenna x 1
Stereo mini plug cable x 1
Wall mount brackets x 2
Screw x 4
Tapered Plastic Wall Anchor x 4
Template for Wall Mounting x 2
Owner’ Manual x 1
Quick Guide for Connection x 1
Warranty Card x 1
Design and specifications are subject to change without notice.
Weight and dimensions are approximate.
Illustrations may differ slightly from production models.
3
MC-DX50i
3 ADJUSTMENTS AND CHECKS
ALIGNMENT PROCEDURES
AM I.F. ALIGNMENT
1. Set the POWER BUTTON to POWER "ON".
2. Set the Radio and band button to Radio and AM BAND.
3. Connect a SWEEPSCOPE OUTPUT to AM antenna terminal.
4. Connect a SWEEPSCOPE INPUT to pin17 of IC2 through a 1uf capacitor and ground.
STEPSET SIGNALSET DIALADJUSTADJUST FOR
1 4455KHzGANG OPEN T3
AM R.F. ALIGNMENT
1. Connect an RF generator to a standard radiating loop.
2. Connect a SCOPE and VTVM across the speaker output.
STEPSET SIGNALSET DIALADJUSTADJUST FOR
1 515KHz GANG CLOSED L6
2 1640KHz GANG OPENPVC-D
3600KHz1400KHzL4
41400KHz1400KHzPVC-C
5REPEAT STEPS 3 AND 4 TO OBTAIN BEST TRACKING.
CENTER
&MAXIMUM OUTPUT
MAXIMUM
OUTPUT
FM R.F. ALIGNMENT
1. Connect an RF generator to the FM antenna terminal and ground.
2. Connect a SCOPE & VTVM across the speaker output.
STEPSET SIGNALSET DIALADJUSTADJUST FOR
1 76MHz GANG CLOSED L3
2 108MHz GANG OPENPVC-A
390MHz90MHzL2
4106MHz1106MHzPVC-B
5REPEAT STEPS 3 AND 4 TO OBTAIN MAX ADJUST.
MAXIMUM
OUTPUT
CD ALIGNMENT
Auto alignment.
4
MC-DX50i
4 EXPLODED VIEW AND PARTS LIST
EXPLODED VIEW
5
MC-DX50i
EXPLODED VIEW
PARTS LIST
REF.NO. PARTS NO. DESCRIPTION REMARKS
1 56-04DX50I00B10 FRONT CAB (HIPS) 931980 42 8C
2 56-05DX 50I00B10 REAR CAB(HIPS) DAB 93 1980
3 56-07DX 50I10910 BACK LIHGT BRACKET 1 (ABS) WHITE
4 56-07DX 50I30910 REMOTE CONTROL INC EPT BRACKET (ABS) WHT
5 56-07DX 50I40010 LOAD BRACKET (ABS)
6 56-09DX 50I00B10 IPOD BRACKET BOTTOM BOARD (ABS) BLACK
7 56-09DX 50I10B10 IPOD BRACKET BASE (ABS) BLACK
8 56-22DX 50I00B10 CD COVER (ABS) BLACK
9 56-22DX 50I20B10 POWER COVER (ABS) BLA CK
10 56-33DX50I00B10 IPOD BRACKET FIXING (ABS) BLACK
11 56-54DX50I00A10 FUNCTION KNOB GROUP-1(ABS) SI LVER
12 56-54DX50I10A10 FUNCTION KNOB (ABS) BLACK
13 56-54DX50I20A10 FUNCTION KNOB GROUP-2(ABS) SI LVER
14 56-57DX50I30010 CD L ENS (PMMA)
15 56-57DX50I10010 BACK LIGHT LENS 1 (PMMA)
16 56-57DX50I40010 STANDBY LENS (PMMA ) MILK
17 56-69DX50I00000 LOAD ER PLATE -L(ABS)
18 56-69DX50I00100 LOAD ER PLATE -R(ABS)
19 56-69DX50I00200 PCB PLATE (ABS) BLACK
20 56-78DX50I00010 FUNC TION KNOB RING (ABS) ELECTROPLATE
21 57-08DM23000020 PETP PLATE
22 57-26DX50I00020 FILTER SHEET
23 57-47DX50I00020 DISP LAY LENS T=1mm (PC)
24 58-263102300120 RUBB ER FOOT(BLK)(PORON) DIA10mm T=3mm
25 58-26DX50I00021 RUBB ER FOOT (PO RON) 16x15x3mm