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HK758A Trouble Shooting 第一版

HK758A Trouble Shooting 第一版. 二零零 四年十一月十九日. HK758A 维修流程表. 不開機. 不開機. CHK 電池是否插好. NG. 重拔重插 , 無電 更換電池. OK. CHK 是否點亮. No 鍵是否被頂死. NG. 重裝 RUBBER KEY. OK. CHK 是否點亮. CHK MB&FPC 接觸 是否良好. 重新組裝 CNTR. NG. OK. 更換 MB&LB 模塊. OK. KEY NG. KEY NG. CHK RUBBER KEY 是否有卡鍵.

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HK758A Trouble Shooting 第一版

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  1. HK758A Trouble Shooting 第一版 • 二零零四年十一月十九日 HK758A 维修流程表

  2. 不開機 不開機 CHK 電池是否插好 NG 重拔重插,無電 更換電池 OK CHK是否點亮 No鍵是否被頂死 NG 重裝RUBBER KEY OK CHK是否點亮 CHK MB&FPC 接觸 是否良好 重新組裝CNTR NG OK 更換MB&LB 模塊 OK

  3. KEY NG KEY NG CHK RUBBER KEY 是否有卡鍵 重裝RUBBER KEY NG OK CHK KEY DOME 導電部分是否完整 NG 更換KEY DOME OK 更換MB 模塊 OK

  4. 主LCD 無顯示 主LCD 無顯示 CHK FPC是否破損或輿 CN501脫落 NG 重裝和檢查FPC,若有損壞需 更換FPC OK CHK CN802是否虛焊 或短路 NG 重焊且檢查 CHK LCD的 FPC 是否損壞 NG 更換LCD OK 更換LB模塊 OK

  5. 小LCD 無顯示 小LCD 無顯示 CHK 小LCD的FPC 是否断及虚焊 NG 重新焊接 更換小LCD OK OK OK

  6. 七色LED NG LED NG NG 重焊或更换 LED CHK LED OK CHK R433 R434 R435 Q404Q405 Q406 是否空.虛焊 NG 重焊或更换R802.803.804 Q404Q405 Q406 OK CHK FPC&FPC connect 是否有虚焊及空焊 重新焊接或更换 FPC&FPC connect OK 換LB OK

  7. 無網絡 無網絡 CHK 是否在 信號區 NG 移到有信號的地方或CHK 是否與測試儀器有效連結 OK CHK 天線彈片是否 與天線接觸良好 NG 調整及更换彈片,使之與 天線接觸良好 更換MB OK OK

  8. 通話無聲音 通話無聲音 CHK FPC是否破損或輿 FPC 脫落 NG 重裝和檢查FPC,若有損壞需 更換FPC OK CHK FPC是否虛焊 或短路 NG 重焊且檢查 OK CHK RECEIVER是否 損壞 NG 更換RECEIVER OK CHK MIC是否脫出 或連接線斷 NG 重新補焊或更換MIC,注意 反正面 OK 更換MB或LB模塊 OK

  9. 無鈴聲或無Key tone 無鈴聲或無Key tone CHK FPC是否破損或輿 FPC脫落 NG 重裝和檢查FPC,若有損壞需 更換FPC OK CHK FPC是否虛焊 或短路 NG 重焊且檢查 OK CHK SPEAKER是否虛焊 或損壞 NG 重焊或更換 OK 更換LB模塊 OK

  10. BATTERY NG BATTERY NG CHK Battery是否插好 電池線是否斷裂 NG 重插或更換Battery,电池 接口是否損壞 OK 更換MB OK

  11. SRAM NG SRAM NG CHK SRAM是否有短路 虛焊 NG OK 更换MB OK 重 焊

  12. FLASH NG FLASH NG CHK FLASH是否連焊 短路 NG 重焊 OK 更換MB Module OK

  13. Checksum NG Checksum NG 檢查軟件版本是否正確 NG 更換軟件版本 OK 重焊 是否能計算Checksum NG 檢查FLASH是否焊好 NG 更換MB Module OK

  14. RTC NG RTC NG CHK X101是否焊好 重焊或更換 OK 更換MB Module OK

  15. SO Write NG SO Write NG NG CHK 充电connect 是否焊好 重焊 OK 更換MB Module OK

  16. LCD 接 觸不良 LCD 接觸不良 NG CHK RUBBER KEY 是否有卡鍵 重裝RUBBER KEY OK NG CHK FPC是否受損 脫落 重裝或更換FPC OK Check CPU 是否OK OK

  17. 小LCD 接觸不良 小LCD 接觸不良 NG CHK 小LCD FPC 是否有損壞 更換小LCD OK Check Connecter 是否 OK OK

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