- 2-20 -
PLAY MODE CHECK
IC201 46Pin VCC CHECK
VOLTAGE CHECK LIST
YES
NO
Deck Mecha CHANGE
NO
IC201 3,6 Pin Signal Output CHECK
Muting SECTION CHECK
Deck Mecha MOVE CHECK
YES
NO
IC201 CHANGE
YES
REC CHECK (Q202,Q252 ON:R220,270 HIGH)
IC203 2,8Pin INPUT SIGNAL CHECK
Q202,Q252 Base "Low"CHECK
YES
NO
IC203 3,7 Pin OUT
IC202 6(12V),4 Pin High check
IC203 6Pin VCC volt check
YES
NO
IC203 Troubleshooting
NO
Q202,Q252 CHANGE
YES
L201 2,3PIN check
Power Check,IC202 Troubleshooting
YES
NO
VOLTAGE CHECK LIST
NO
DECK CHANGE
C227(+)INPUT VOLT CHECK
YES
NO
Q205 Base 0.6V CHECK
YES
IC203 Troubleshooting
NO
Q205 Collector Low
YES
Q205 CHANGE
NO
Q204 CHANGE
YES
L201 CHANGE
NO
OK
YES
Summary of Contents for LX-U550A
Page 6: ... 1 6 ...
Page 27: ... 2 21 INTERNAL BLOCK DIAGRAM of ICs NJW1190 BLOCK DIAGRAM ...
Page 28: ... 2 22 PIN FUNCTION SSOP44 ...
Page 29: ... 2 23 PIN FUNCTION QFP48 P1 ...
Page 33: ... 2 27 PIN DESCRIPTION ...
Page 34: ... 2 28 ...
Page 35: ... BLOCK DIAGRAM 2 29 2 30 ...
Page 36: ...2 31 2 32 WMA USB BLOCK DIAGRAM ...
Page 37: ...2 33 2 34 SCHEMATIC DIAGRAMS MAIN SCHEMATIC DIAGRAM ...
Page 38: ...2 35 2 36 FRONT SCHEMATIC DIAGRAM ...
Page 39: ...2 37 2 38 POWER SCHEMATIC DIAGRAM ...
Page 40: ...2 39 2 40 DECK SCHEMATIC DIAGRAM ...
Page 41: ...2 41 2 42 CD SCHEMATIC DIAGRAM ...
Page 42: ...2 43 2 44 USB SCHEMATIC DIAGRAM ...
Page 43: ...2 45 2 46 WIRING DIAGRAM ...
Page 44: ...2 47 2 48 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD ...
Page 45: ...2 49 2 50 FRONT P C BOARD ...
Page 46: ...2 51 2 52 CDP P C BOARD COMPONENT SIDE ...
Page 47: ...2 53 2 54 CDP P C BOARD SOLDER SIDE ...
Page 48: ...2 55 2 56 LINEAR POWER ...
Page 49: ......
Page 54: ... 4 2 ...
