4.11 Key Backlight LED Trouble
SETTING : Connect PIF to the phone, and power on, Enter engineering mode, and set
‘Backlight on’ at Backlight of BB test menu
Checking Flow
START
PIF Power On
Check the soldering R329,R331
Is the Voltage at pin 2 at Q301
about 1.3 V ?
Key backlight LED
Working
No
Check the soldering and
replace LEDs not working
Are all LEDs LD300-LD303,
LD306-LD313 not working
Yes
Replace Q301, and try
again
Yes
Yes
No
- 89 -
4. TROUBLE SHOOTING
Содержание G7100
Страница 20: ...Figure 3 4 Power Amplifier Block Diagram 22 3 TECHNICAL BRIEF ...
Страница 28: ...3 8 Analog Main Processor AD6521 Figure 3 9 AD6521 30 3 TECHNICAL BRIEF ...
Страница 31: ...Figure 3 10a Voice band circuit Diagram 33 3 TECHNICAL BRIEF ...
Страница 32: ...Figure 3 10b Voice band circuit Diagram 34 3 TECHNICAL BRIEF ...
Страница 33: ...Figure 3 10c Voice band circuit Diagram 35 3 TECHNICAL BRIEF ...
Страница 39: ...Figure 3 13 Keypad Switches and Scanning 41 3 TECHNICAL BRIEF ...
Страница 42: ...Figure 3 16a Hands free Headset Jack Interface 44 3 TECHNICAL BRIEF ...
Страница 43: ...Figure 3 16b Hands free Headset Jack Interface 45 3 TECHNICAL BRIEF ...
Страница 49: ...Figure 3 21a CLC344E 51 3 TECHNICAL BRIEF ...
Страница 50: ...Figure 3 21b Sensor connection 52 3 TECHNICAL BRIEF ...
Страница 70: ...Figure 4 12 Test Points 72 4 TROUBLE SHOOTING ...
Страница 79: ...Test Points Receiver part Circuit Diagram Figure 4 16 81 PIN 35 33 4 TROUBLE SHOOTING ...
Страница 83: ...Figure 4 18 Test Points 85 R112 R111 R113 R115 C121 C145 C147 4 TROUBLE SHOOTING ...
Страница 84: ...MIC part Circuit Diagram VINNORP VINNORN 86 4 TROUBLE SHOOTING ...
Страница 90: ...Figure 4 21 Test Points Folder on off part Circuit Diagram 92 U301 R304 U300 R300 4 TROUBLE SHOOTING ...
Страница 92: ...Figure 4 22 Test Points SIM part Circuit Diagram 94 J100 4 TROUBLE SHOOTING ...
Страница 96: ...Earphone part Circuit Diagram 98 4 TROUBLE SHOOTING ...
Страница 97: ...Figure 4 23a Test Points Figure 4 23b 99 U400 C412 C409 U401 R417 R422 U403 J400 4 TROUBLE SHOOTING ...
Страница 101: ...HFK part Circuit Diagram 103 4 TROUBLE SHOOTING ...
Страница 102: ... 104 4 TROUBLE SHOOTING ...
Страница 103: ...Figure 4 24a Test Points Figure 4 24b CN300 105 U400 U401 CN300 4 TROUBLE SHOOTING ...
Страница 106: ...Camera part Circuit Diagram 108 4 TROUBLE SHOOTING ...
Страница 108: ...5 DISASSEMBLY INSTRUCTION 5 1 Disassembly 5 DISASSEMBLY INSTRUCTION 110 ...
Страница 109: ...5 DISASSEMBLY INSTRUCTION 111 ...
Страница 110: ...5 DISASSEMBLY INSTRUCTION 112 ...
Страница 111: ...5 DISASSEMBLY INSTRUCTION 113 ...
Страница 112: ...5 DISASSEMBLY INSTRUCTION 114 ...
Страница 113: ...5 DISASSEMBLY INSTRUCTION 115 ...
Страница 114: ...5 DISASSEMBLY INSTRUCTION 116 ...
Страница 115: ...5 DISASSEMBLY INSTRUCTION 117 ...
Страница 122: ...11 Wait until Sending Block is completed 1 Wait Until Sending Block is completed 6 DOWNLOAD AND CALIBRATION 124 ...
Страница 133: ... 135 9 PCB LAYOUT ...
Страница 134: ... 136 9 PCB LAYOUT ...
Страница 143: ...Figure 11 2 HW test setting Figure 11 3 Ramping profile 11 STAND ALONE TEST 145 ...
Страница 147: ... 149 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 Exploded View ...