![Motorola 880 Скачать руководство пользователя страница 50](http://html.mh-extra.com/html/motorola/880/880_service-manual_242250050.webp)
42
68P09403A50
12/9/97
Dual Band 880/890 (DCS/GSM)
5.
Hinged mouth-
piece does
not go on/off
hook correctly.
b)
Magnet in flip defective.
1. Replace flip assembly with known good
one.
2. Place call to portable phone and verify
ability to answer by opening flip.
3. If fault still present, replace original flip
assembly and proceed to c.
c)
Keypad/Display board
defective.
1. Replace the Keypad/Display board with a
known good one.
2. Place call to portable phone and verify that
the fault has been eliminated.
3. If original Keypad/Display board is at fault,
examine it for improper solder and/or
connections. Likely fail components: J500.
d)
Logic/RF Board Assembly
defective.
1. Replace the Logic/RF board with a known
good one.
2. Place call to phone and verify that the fault
has been eliminated.
3. If original Logic/RF Board Assembly is at
fault, examine it for improper solder and/or
connections.
6.
Vibrator
feature not
functioning.
a)
Vibrator motor defective.
1. Check connections, if OK unsolder the
supply wires to the motor and unclip the
motor from the board.
2. Replace the motor with a known good one.
Reassemble unit.
3. Place call to portable phone and verify
vibrator feature functions.
4. If still at fault, examine it for improper solder
and/or connections. Likely fail components:
J603, Q604, and Q605.
6.
Vibrator
feature not
functioning.
c)
Logic/RF Board Assembly
defective.
1. Replace Logic/RF Board Assembly.
2. Place call to portable phone and verify that
the fault has been eliminated.
3. If Logic/RF Board Assembly is at fault,
examine it for improper solder and/or
connections.
Table 8: GSM Logic/Processing Troubleshooting and Repair Chart
Logic/Processing
Symptom
Probable Cause
Verification and Remedy
Содержание 880
Страница 18: ...10 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM ...
Страница 22: ...14 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM ...
Страница 32: ...24 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM ...
Страница 36: ...28 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM ...
Страница 42: ...34 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM ...
Страница 64: ...56 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM ...
Страница 65: ...12 9 97 68P09403A50 57 Troubleshooting Figure 9 RF Block Diagram ...
Страница 66: ...58 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM Figure 10 GSM Dual BandFunctional Block Diagram ...
Страница 98: ...90 68P09403A50 12 9 97 Dual Band 880 890 DCS GSM ...
Страница 106: ...98 12 9 97 ...
Страница 110: ......
Страница 111: ......
Страница 112: ......
Страница 113: ......
Страница 114: ......
Страница 115: ......
Страница 116: ......
Страница 117: ......
Страница 118: ......
Страница 119: ......
Страница 120: ......
Страница 121: ......
Страница 122: ......
Страница 123: ......
Страница 124: ......
Страница 125: ......
Страница 126: ......
Страница 127: ......
Страница 128: ......
Страница 129: ......
Страница 130: ......
Страница 131: ......
Страница 132: ......
Страница 133: ......
Страница 134: ......
Страница 135: ......
Страница 136: ......
Страница 137: ......
Страница 138: ......
Страница 139: ......
Страница 140: ......
Страница 141: ......
Страница 142: ......
Страница 143: ......
Страница 144: ......
Страница 145: ......
Страница 146: ......
Страница 163: ...Page 1 DUAL BAND 8800 8900_P16 ...
Страница 170: ...Page 2 DUAL BAND 8800 8900_P16 ...
Страница 171: ......