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PDF Contains
Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
KMD-6527
COMPONENTS DESCRIPTION
� SUB-CIRCUIT UNIT (X16-2510-10)
Ref. No. IC1 IC2 IC3 IC4 Q1 Q2,3 Q4 Q6 Q7,9 Q8,10 Q11,12 Application / Function Panel µcom 3.3V Regulater Remote Control IC Buffer IC FL BLK SW FL+B SW SW5V � LED SW Red LED SW Green LED SW Blue LED SW It is change into 3.3V from 5V VFD is turned on when Q1�s base level goes �H� FL+B (VDD2) is turned on when Q2�s base level goes �H� The power supply of IC3 is turned on when Q4�s base level goes �L� � LED is turned on when Q6�s base level goes �H� RED LED is turned on when Q7�s base level goes �L� GREEN LED is turned on when Q8�s base level goes �L� BLUE LED is turned on when Q11�s base level goes �L� The power supply of IC and VFD (Logic) which are driven by 3.3V Operation / Condition / Compatibility
� SUB-CIRCUIT UNIT (X16-2520-00)
Ref. No. PH1 Application / Function MD Disk Det Operation / Condition / Compatibility When base voltage is set to �L�, they are those with a disk.
� ELECTRIC UNIT (X34-3012-72)
Ref. No. IC1 IC2 IC3 IC4 IC7 IC10 IC11 IC12 Application / Function System µCOM E.Vol & N.C.MPX A8V Ref Power Supply Power IC SW Regulator Muting logic IC Reset IC RDS decoder IN Panel mecha IN1 L IC13 Panel mecha motor driver Panel mecha control L H H IC14 IC20 Q1,2 Q3,4 Level meter Buffer SW Regulator B.U.5V AVR SW5V H L H OPEN CLOSE STOP IN2 L WAIT Operation / Condition / Compatibility Controls FM/AM tuner, the changer, CD/MD mechanism, Panel, volume and tone. Controls the source, volume, tone and FM multiplex detector Output 1.27V Amplifies the front L/R and the rear L/R to 50W or 47W maximum. Power Supply for mp3 Controls logic for muting. �L� when detection voltage goes below 3.6V or less.
The signal of IC2 is sent to Panel µcom Power Supply for VFD While BU is applied, BU5V AVR outputs +5V. When Q4�base goes Hi, SW5V outputs +5V.
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