Daewoo AMI-225M Service Manual Download Page 3

Safety Precautions

- 2 -

WARNING

: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE 

THIS APPLIANCE TO RAIN OR MOISTURE.

  CAUTION :

TO REDUCE THE RISK IF ELECTRIC SHOCK, DO NOT

REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS 

INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE 

PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE"

 

WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE 

SUFFICIENT  MAGNITUDE TO CONSTITUTE A RISK OF 

ELECTRIC SHOCK TO PERSONS.

THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE

PRESENCE OF IMPORTANT OPERATING  AND MAINTENANCE 

(SERVICING) INSTRUCTIONS IN THE LITERATURE 

ACCOMPANYING THE APPLIANCE.

CAUTION

  TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC    

  PLUG WITH AN EXTENSION CORD, RECEPTACLE  OR OTHER OUTLET  

  UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE 

  EXPOSURE.

LASER SAFETY

  THIS UNIT EMPLOYS A  LASER. ONLY QUALIFIED SERVICE  PERSONNEL 

  SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE 

  DUE  TO POSSIBLE EYE INJURY.

  CAUTION :

 USE OF ANY CONTROLS, ADJUSTMENTS,  OR PROCEDURES 

  OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS

  RADIATION EXPOSURE.

CAUTION :

 TO PREVENT  ELECTRIC SHOCK, MATCH WIDE BLADE OF 

PLUG TO WIDE SLOT, FULLY INSERT.

ATTENTION :

  POUR EVITER  LES CHOCS  ELECTRIQUES, INTRODUIRE 

LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPON-
DANTE   DE LA   PRISE ET  POUSSER JUSQU'AU FOND.

Important Safety Instructions

- All the safety and operating instructions should be read before   

the appliance is operated.

- The safety and operating instructions should be retained for 

future reference.

- All warnings on the appliance and in the operating instructions 

should be adhered to.

- All operating and use instructions should be followed.
1.  Water and Moisture - The appliance should not be

 

used near 

water - for example, near a bathtub, washbowl, kitchen sink,

laundry tub, in a wet basement, or near a swimming pool,
and the like.

2.  Carts and Stands - The appliance

should be used only with a cart or
stand that is recommended by th
manufacturer.

3.  An appliance and cart combination 

should

 

be moved with care.

 

Quick 

stops, excessive force, and uneven

 

surfaces may cause the appliance 
and

 

cart combination to overturn.

4.  Wall or Ceiling Mounting - The appli-

ance

 

should be mounted to a wall or

 ceiling

 

only as recommended by the

 

manufacturer.

5.  Ventilation - The appliance should be situated so

 

that its 

location or position does not interfere with

 

its proper 

ventilation.  For example, the appliance

 

should not be situated 

on a bed, sofa, rug, or

 

similar surface that may block the 

ventilation

 

openings; or, placed in a built-in installation, such

 

as a bookcase or cabinet that may impede the flow

 

of air 

through the ventilation openings.

6.  Heat - The appliance should be situated away from

 

heat 

sources such as radiators, heat registers,

 

stoves, or other 

appliances (including amplifiers) that

 

produce heat.

7.  Power Sources - The appliance should be

 

connected to a 

power supply only of the type

 

described in the operating 

instructions or as marked

 

on the appliance.

8.  Grounding or Polarization - The precautions that

 

should be 

taken so that the grounding or

 

polarization means of an 

appliance is not defeated.

9.  Power - Cord Protection - Power-supply cords

 

should be 

routed so that they are not likely to be

 

walked on or pinched 

by items placed upon or

 

against them, paying particular 

attention to cords at

 

plugs, convenience receptacles, and the 

point where

 

they exit from the appliance.

10.Protective Attachment Plug - The appliance is equipped with 

an attachment plug having overload

 

protection.  This is a 

safety feature.

 

See Instruction Manual for replacement or 

resetting of

 

protective device. If replacement of the plug is 

required, be sure the

 

service technician has used a 

replacement plug

 

specified by the manufacturer that has the 

same overload protection as the original plug.

11.Cleaning - The appliance should be cleaned only as

 

recommended by the manufacturer.

12.Power Lines - An outdoor antenna should be located

 

away 

from power lines.

CAUTION

RISK OF ELECTRIC SHOCKS

DO NOT OPEN

PORTABLE CART 

Figure 2

Summary of Contents for AMI-225M

Page 1: ...Service Manual MINI COMPONENT SYSTEM Model DAEWOO ELECTRONICS CO LTD AMI 225M MU AMI 325M MU...

Page 2: ...225M MU 325M MU 1 SAFETY PRECAUTIONS 2 ADJUSTMENTS 4 EXPLODED VIEW AND PARTS LIST 6 WIRING DIAGRAM 8 BLOCK DIAGRAM 9 SCHEMATIC DIAGRAM 10 POWER AMP 10 CD 12 TUNER 13 TAPE 14 CONTROL 15 PCB PATTERN LAY...

Page 3: ...should be used only with a cart or stand that is recommended by th manufacturer 3 An appliance and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause...

Page 4: ...that objects do not fall and liquids are not spilled into the enclosure through openings 16 Damage Requiring Service The appliance should be serviced by qualified service personnel when a The power su...

Page 5: ...26dBuV Modulation Audio 1kHZ 75kHz Deviation FM RF SSG 75 ohm Coaxal Level 1 2 0 3Vp p RF Signal Waveform VOLT DIV 200mV TIME DIV 50ns Traverse Waveform A B 0V Check Point Confirm No Adjustment OPTION...

Page 6: ...Counter Output Level Measurement Point Set Forward Side Reverse Side Adjust with Frequency Counter Connected L CH Peak R CH Peak Screw Angle Output Level within 1 dB within 1 dB L CH Peak R CH Peak S...

Page 7: ...Exploded View and Mechanical Parts List 6 Model No AMI 225M MU 325M MU...

Page 8: ...00 1 24 1 HEAT SINK 1 9CD4404500 1 OPTION 25 CHASSIS BOTTOM 9CD0608000 1 26 COVER SIDE L 9CD04115L0 1 27 COVER SIDE R 9CD04115R0 1 28 COVER BACK 9CD0409801 1 29 COVER TOP 9CD0411400 1 30 PLATE EON 9CD...

Page 9: ...8 AMI 225M MU 325M MU A3 A3 CASETTE DECK M M FRONT PCB ASSY S N MAIN PCB ASSY S N POWER TRANS Pick Up FUSE PCB ASSY S N M M CD MECHA ASS Y M M AC CORD WIRING DIAGRAM...

Page 10: ...BLOCK DIAGRAM...

Page 11: ...Schemetic Diagram 10 Model No AMI 225M MU Ass y Name POWER AMP...

Page 12: ...11 AMI 325M MU POWER AMP Schemetic Diagram...

Page 13: ...12 AMI 225M MU 325M MU CD Schemetic Diagram...

Page 14: ...2 VCC Vtg V 13 1 FM 3 7 AM 0 3 FM 3 7 AM 0 5 FM 0 AM 2 4 7 VT Vtg V Name E 1 IC201 Pin No 13 14 Name Pin No Vtg V 1 2 2 1 4 8 15 3 2 1 4 2 1 5 6 7 8 9 10 11 12 GND 2 9 16 17 18 19 20 21 22 23 24 2 1...

Page 15: ...Schemetic Diagram 14 Model No AMI 225M MU 325M MU Ass y Name TAPE...

Page 16: ...Schemetic Diagram 15 Model No AMI 225M MU 325M MU Ass y Name CONTROL...

Page 17: ...16 P C B Pattern Layout Model No AMI 225M MU 325M MU Ass y Name POWER AMP TUNER...

Page 18: ...P C B Pattern Layout 17 Model No AMI 225M MU 325M MU Ass y Name CD...

Page 19: ...P C B Pattern Layout 18 Model No AMI 225M MU 325M MU Ass y Name FRONT...

Page 20: ...MPER W581GY1005 AWG22 1 0 65 SN 10 AUTO o o o o 36 PCB FRONT AS JW735 736 WIRE JUMPER W581GY6095 AWG22 1 0 65 SN 6 AUTO o o o o 37 PCB FRONT AS JW737 WIRE JUMPER W581GY1005 AWG22 1 0 65 SN 10 AUTO o o...

Page 21: ...ACT 5S50101008 KPT 1105V 1C 1P o o o o 104 PCB FRONT AS SW721 SW TACT 5S50101001 KPT 1105A 1C 1P o o o o 105 PCB FRONT AS SW722 SW TACT 5S50101001 KPT 1105A 1C 1P o o o o 106 PCB FRONT AS XC701 X TAL...

Page 22: ...MF Z o o o o 174 PCB MAIN AS CC519 C CERA CCXB1H331K 50V B 330PF K TAPPING o o o o 175 PCB MAIN AS CC520 C CERA CCXF1H103Z 50V F 0 01MF Z TAPPING o o o o 176 PCB MAIN AS CC521 522 C CERA CCXB1H472K 50...

Page 23: ...CB MAIN AS CE601 602 C ELECTRO CEXF1E470V 25V RSS 47MF 5X11 TP o o o o 244 PCB MAIN AS CE603 604 C ELECTRO CEXF1H100V 50V RSS 10MF 5X11 TP o o o o 245 PCB MAIN AS CE605 C ELECTRO CEXF1E470V 25V RSS 47...

Page 24: ...IN AS D610 611 DIODE DZN4148 1N4148 AUTO 52MM o o o o 315 PCB MAIN AS D801 802 DIODE DZN4148 1N4148 AUTO 52MM o o o o 316 PCB MAIN AS D901 902 DIODE DKN4002A 1N4002A AUTO 26MM o o o o 317 PCB MAIN AS...

Page 25: ...AUTO o 384 PCB MAIN AS JW561 563 WIRE JUMPER W581GY6095 AWG22 1 0 65 SN 6 AUTO o o o 385 PCB MAIN AS JW561 563 WIRE JUMPER W581GY7595 AWG22 1 0 65 SN 7 5 AUTO o 386 PCB MAIN AS JW564 WIRE JUMPER W581...

Page 26: ...98Y KTC3198Y 1815Y AUTO o o o o 454 PCB MAIN AS Q621 TR TZTA1273Y KTA1273Y 966Y o o o o 455 PCB MAIN AS Q801 802 TR TZTD1302Y KTD1302Y AUTO o o o 456 PCB MAIN AS Q801 802 TR TZTC3198Y KTC3198Y 1815Y A...

Page 27: ...ARBON FILM RD AZ220J 1 6 22 OHM J o o o o 524 PCB MAIN AS R511 R CARBON FILM RD AZ824J 1 6 820K OHM J o o o o 525 PCB MAIN AS R512 R CARBON FILM RD AZ100J 1 6 10 OHM J o o o o 526 PCB MAIN AS R513 R C...

Page 28: ...6 180K OHM J o o o o 594 PCB MAIN AS R627 628 R CARBON FILM RD AZ151J 1 6 150 OHM J o o o o 595 PCB MAIN AS R629 630 R CARBON FILM RD AZ224J 1 6 220K OHM J o o o o 596 PCB MAIN AS R631 632 R CARBON FI...

Page 29: ...o o o 642 PCB MAIN AS R827 WIRE JUMPER W581GY1005 AWG22 1 0 65 SN 10 AUTO o o o 643 PCB MAIN AS R829 WIRE JUMPER W581GY1005 AWG22 1 0 65 SN 10 AUTO o o o 644 PCB MAIN AS R831 832 R CARBON FILM RD AZ47...

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