4. TROUBLE SHOOTING
- 66 -
All LEDs are not working
Any LED is not working
START
ABB is out of order.
Change the Board.
Replace the LED.
It is out of order.
Enter
The Voltage of LEDB signal
is about 0V?
Is there anything that
resistor value across LED
is under 10
Ω
?
Yes
Yes
No
No
into Engineering Mode
and select Keypad On
Keypad Display is OK.
Power off and Measure the
Resistor Value of all LEDs.
Resolder the path
of LED and Resistor.
START
Enter
The path is OK?
Yes
No
into Engineering Mode
and select Keypad On
The LED is out of order.
Change the LED.
Summary of Contents for L1150
Page 1: ...Service Manual Model L1150 Service Manual L1150 P N MMBD0034601 Date June 2004 Issue 1 0 ...
Page 3: ......
Page 18: ...3 H W Circuit Description 17 Figure 1 Receiver Part Block Diagram ...
Page 42: ...3 H W Circuit Description 41 A BaseBand Components Component Side ...
Page 102: ...5 DISASSEMBLY INSTRUCTION 101 5 DISASSEMBLY INSTRUCTION 2 1 1 2 ...
Page 103: ...5 DISASSEMBLY INSTRUCTION 102 1 2 3 ...
Page 104: ...5 DISASSEMBLY INSTRUCTION 103 2 1 1 2 ...
Page 105: ...5 DISASSEMBLY INSTRUCTION 104 3 ...
Page 106: ...5 DISASSEMBLY INSTRUCTION 105 ...
Page 113: ...7 BLOCK DIAGRAM 112 Baseband Part 7 BLOCK DIAGRAM The Block Diagram of the Baseband Part ...
Page 122: ... 121 9 PCB LAYOUT ...
Page 123: ... 122 9 PCB LAYOUT ...
Page 133: ......
Page 134: ... 133 11 EXPLODED VIEW REPLACEMENT PART LIST 11 1 EXPLODED VIEW ...
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