Document
DVD Micro System
MCD122
TABLE OF CONTENTS
Location of PC Boards ............................................. 1-1 Electronic Specification ............................................. 1-2 Measurement Setup ................................................ 1-3 Service Aids............................................................... 1-4 Instruction On CD Playability ........................... 1-5 to 1-6 Software Version Check & Upgrade ........................ 2-1 Malfuction Check Chart ............................................. 2-2 Disassembly Diagram................................................ 3-1 Block Diagram ......................................................... 4-1 Wiring Diagram ......................................................... 4-2 Small Board .................................................................. 5
Circuit diagram ...................................................... 5-1 Layout diagram ...................................................... 5-1 LCD Display Board ...................................................... 6 Circuit diagram ...................................................... 6-1 Layout diagram ...................................................... 6-2 Power Board ............................................................... 7 Circuit diagram ............................................. 7-1 to 7-2 Layout diagram ...................................................... 7-3
ReWritable
Recordable
Decoder Board ............................................................ 8 Circuit diagram ............................................. 8-1 to 8-4 Layout diagram ...................................................... 8-5
Exploded View ......................................................... 9-1 Service Partlist .......................................... 10-1 to 10-3 Factory Partlist ...................................................... 11-1
2009
SW1044
Version 1.2
3141 785 34132
http://www.Datasheet4U.com
Location of PC Boards
1-1
Scart Board Decoder Board
LCD Display Board
AMP/Power Board
USB/Headphone Board
VERSION VARIATIONS :
Type /Versions:
Board in used:
Service policy
LCD DISPLAY BOARD HEADPHONE BOARD POWER BOARD DECODER BOARD SCART BOARD
MCD122
/05 /12 /37 /51 /58 /77 /79 /93 /94 /96 /98
CC
M/C C
MM MM M
M/C M/C M/C M/C M/C M/C
M MM M MM
C M/C
M M M
Type /Versions:
MCD122
Features
Feature diffrence /05 /12 /37 /51 /58 /77
RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK
TDS
* TIPS : C -- Component Lever Repair. M -- Module Lever Repair -- Used
/79 /93
/94 /96 /98
Electronic Specification
AMPLIFIER
Rated Output Power ......................... 2X20W RMS Signal-to-noise ratio ...................................≥65dBA Frequency response ............... 20Hz--20kHz ±3dB Aux Input ................................... 1V/ RMS 16kohm
DISC
Laser Type .................................... Simeconductor Disc Diameter ....................................... 12cm/8cm Support Disc ...............................................CD-DA, CD-R,CD-RW,MP3,DVD,DVD-RW,DVD+RW Audio DAC .....................................................1KHz Total Harmonic Distortion .............................. < 1% Frequency Response ..................... 20Hz ~ 20KHz S/N Ration ..................................................>65.d.BA
TUNER
FM Tuning Range .......................... 87.5--108 MHz Tuning grid ........................................ 100K/50KHz
Sensitivity
– Mono, 26dB S/N Ratio ................................. 5. uV – Stereo, 46dB S/N Ration .......................... 100uV Selectivity ................................................... ˚33dB Image Rejection ......................................... ˚25dB Total Harmonic Distortion ................................. 3% Signal to Noise Ration .............................. ≥50dBA
1-2
SPEAKERS
Speaker Impedance ............................................ 2.x8ohm Speaker Driver, base .....................................................4” Speaker Driver, tweeter ....................................... Buzzer Frequency Response ................. 100Hz +5dB+/-5 15KHz
GENERAL INFORMATION
Total Output power ...........................................40W RMS AC Power ......................................................220V / 50Hz Operation Power Consumption ................................ 40W Standby Power Consumption ................................. ˘6W Eco Standby Power Consumption .......................... ˘1W Headphone Output .................................. 500mV 32. ohm USB Direct ..................................................... Version 2.0
Dimensions
– Main unit (w x h x d) ............................ 220x90x240mm – Speaker box (w x h x d) .................... 100x220x160mm – SUBwoofer(w x h x d) ...............................................NA
Weight
– With Packing .......................................................... 6KG – Main Unit ..............................................