3-7
ELECTRICAL TROUBLESHOOTING GUIDE
3.
μ
-COM PART CHECK-2
YES
YES
YES
μ
-com part check-2
OK
Check if IC101 Pin 9, 36, 59 are 3.3 V
Check the operation.
X100: 12 MHz, X101: 32.768 kHz
Replace D100, D101.
NO
Check
if output of D100, D101 is
3.3 V.
μ
-com part check-1
Replace IC101.
Check the periphery of IC907.
Replace D102 or IC100.
Replace IC907.
NO
NO
Check
Pin1, Pin3 of IC100
(3.7 V)
Check
Voltage of IC101 Pin49
(3.7 VA)
Check
end voltage of IC907
(3.7 VA)
NO
NO
YES
YES
YES
2.
μ
-COM PART CHECK-1
OK
Summary of Contents for CM2630B
Page 19: ...2 8 A60L A60R 4 SPEAKER SECTION ...
Page 39: ...3 20 5 USB Figure 5 1 USB D D IC501 Pin117 118 D D 26 25 25 26 ...
Page 40: ...3 21 6 CRYSTAL Figure 6 1 12 MHZ CRYSTAL IC101 Pin57 58 XI XO 27 28 27 28 ...
Page 41: ...3 22 MEMO ...
Page 57: ...3 53 3 54 2 MAIN P C BOARD TOP VIEW ...
Page 58: ...3 55 3 56 MAIN P C BOARD BOTTOM VIEW ...
Page 59: ...3 57 3 58 3 VFD TOUCH TOP JACK P C BOARD TOP VIEW ...
Page 60: ...3 59 3 60 VFD TOUCH TOP JACK P C BOARD BOTTOM VIEW ...
Page 61: ...3 61 3 62 MEMO MEMO ...
