![background image](http://html.mh-extra.com/html/lg/lm-u360/lm-u360_service-manual_215934031.webp)
- 2-24 -
CONNECTOR LOCKING CHECK
( PN803, PN804, PN814 )
CHECK POWER SUPPLY CIRCUIT ( PN805, CN806)
CN806 PIN1:12V, PIN2:6.3V, PN805 PIN8:+5V_AD
DEFECTIVE MAIN POEWR SUPPLY
CHECK VOLTAGE CHANGE OF OPEN CLOSE IC803 INPUT VOLTAGE
PIN6:12V, PIN7:6.3V (PN805 PIN2:BTL_MUTE, 23:OPEN, 22:CLOSE)
CHECK VOLTAGE CHANGE LO+, LO- OF
IC803 (PN805 PIN23:OPEN, PIN22:CLOSE)
DEFECTIVE MECHANISM
DEFECTIVE MICOM
DEFECTIVE IC803
■
OPEN CLOSE NG
Summary of Contents for LM-U360
Page 7: ... 1 6 ...
Page 20: ... 2 13 INTERNAL BLOCK DIAGRAM of ICs UTC MC4580 PIN CONFIGURATION TEST CIRCUIT ...
Page 21: ... 2 14 FAN8082D Internal Block Diagram ...
Page 22: ... 2 15 BU2090 Block diagram ...
Page 23: ... 2 16 BA3308 BA3308F BLOCK DIAGRAM BA3308 BA3308F ...
Page 24: ... 2 17 HT1200 4 SYSTEM BLOCK DIAGRAM ...
Page 25: ... 2 18 HT1200 4 FUNCTIONAL BLOCK DIAGRAM ...
Page 26: ... 2 19 CS5340 BLOCK DIAGRAM BU4052 BLOCK DIAGRAM ...
Page 27: ... 2 20 HA12237F BLOCK DIAGRAM ...
Page 28: ... 2 21 PT6324 BLOCK DIAGRAM ...
Page 43: ......
Page 53: ...2 54 2 55 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD TOP VIEW ...
Page 54: ...2 56 2 57 MAIN P C BOARD BOTTOM VIEW ...
Page 55: ...2 58 2 59 FRONT P C BOARD ...
Page 56: ...2 60 2 61 SMPS P C BOARD DECK P C BOARD BOTTOM VIEW TOP VIEW ...
Page 57: ...2 62 2 63 CD P C BOARD TOP VIEW ...
Page 58: ...2 64 2 65 CD P C BOARD BOTTOM VIEW ...
Page 59: ......
Page 65: ... 3 10 ...