SMD PCB Motherboard Kho Khoom Siv

Tsis Siv Neeg SMD PCB Motherboard Kho Khoom

1.Application Ntawm Tsis Siv Neeg SMD PCB Motherboard Kho Khoom

Solder, reball, desoldering ntau hom chips: BGA, PGA, POP, BQFP, QFN, SOT223, PLCC, TQFP, TDFN, TSOP,

PBGA, CPGA, LED nti.

	5300W
Lub tshuab cua sov sab saum toj	Cua kub 1200W
Hauv qab rhaub	Cua kub 1200W.Infrared 2700W
Fais fab mov	AC220V ± 10% 50/60Hz
Dimension	L530 * W670 * H790 hli
Qhov chaw	V-groove PCB kev txhawb nqa, thiab nrog rau sab nraud universal fixture
Kev tswj qhov kub thiab txias	K hom thermocouple, kaw voj tswj, ywj siab cua sov
Kub qhov tseeb	± 2 degree
PCB loj	Max 450 * 490 mm, Min 22 * ​​22 mm
Workbench fine-tuning	± 15mm rau pem hauv ntej / rov qab, ± 15mm sab xis / sab laug
BGAchip	80 * 80-1 * 1 hli
Yam tsawg kawg ntawm nti sib nrug	0.15 hli
Temp Sensor	1 (yeem)
Net nyhav	70kg ua

4.Structures ntawm Infrared CCD Lub Koob Yees Duab Tsis Siv Neeg SMD PCB Motherboard

Kho khoom siv

2. Vim li cas cov cua kub reflow Tsis Siv Neeg SMD PCB Motherboard Kho Khoom Siv yog qhov koj xaiv zoo tshaj?

3.Certificate of Optical Alignment Automatic SMD PCB Motherboard Kho Khoom

UL, E-MARK, CCC, FCC, CE ROHS daim ntawv pov thawj. Lub caij no, txhawm rau txhim kho thiab ua kom zoo dua qhov system zoo,

Dinghua tau dhau ISO, GMP, FCCA, C-TPAT ntawm qhov chaw kuaj ntawv pov thawj.

4.Packing & Shipmen

 

5.Shipment rauSplit Vision Tsis Siv Neeg SMD PCB Motherboard Kho Khoom

DHL / TNT / FEDEX. Yog tias koj xav tau lwm cov nqe lus shipping, thov qhia rau peb. Peb yuav txhawb koj.

6. Tiv tauj peb rau Automatic SMD PCB Motherboard Kho Khoom Siv

Email: john@dh-kc.com

MOB/WhatsApp/Wechat: +8615768114827

Nyem qhov txuas ntxiv kuv WhatsApp:

https://api.whatsapp.com/send?phone=8615768114827

7. Kev paub txog kev siv tsis siv neeg SMD PCB Motherboard Kho Khoom Siv

Basic Phone Failures thiab Solutions:

Kauj Ruam 1: Khau raj Failure Analysis

1, Me me khau raj tam sim no (txog 5-15mA)- Qhov laj thawj tseem ceeb yog tias CPU tsis ua haujlwm.

• Lub moos moos ua haujlwm tsis zoo (13M thiab 32.768K) ​​- Tshawb xyuas qhov hluav taws xob, AFC, thiab zaus.
• Lub moos siv lead ua puas lawm – Hloov cov siv lead ua.
• Lub moos siv lead ua tsim cov teeb liab, tab sis nws tsis ncav cuag CPU - Tshawb xyuas qhov sib txuas ntawm cov khoom siv lead ua thiab CPU.
• Lub moos siv lead ua hluav taws xob yog qhov txawv txav - Tshawb xyuas lub hwj chim lossis lub siv lead ua lub zog hluav taws xob.
• Lub reset voltage yog txawv txav - Lub reset Circuit Court tej zaum yuav tsis ua hauj lwm zoo (xyuas lub hwj chim mov Circuit Court los yog ib tug cais reset tube).
• CPU fais fab mov tsis ua haujlwm - Feem ntau tshwm sim los ntawm lub hwj chim IC tsis tso tawm VCC voltage lossis lub zog hluav taws xob tsis ua haujlwm.
• CPU nws tus kheej puas lawm - Hloov CPU.

2, pib tam sim no nyob ib ncig ntawm 30-60mA- Lub logic circuit malfunctioning.

• font Circuit Court tsis ua haujlwm.
• Teeb meem kev siv hluav taws xob.
• Pib dua teeb meem (lub hwj chim-on pib dua los yog rov pib dua Circuit Court tsis ua hauj lwm).
• Chip xaiv teeb meem.
• Cov ntaub ntawv kab lossis kab chaw nyob ua haujlwm tsis zoo.
• Kev puas tsuaj rau font (hauv chaw cia lossis lub tsev qiv ntawv font puas).
• CPU kev puas tsuaj (sab hauv CPU tawg lossis tswj tsis ua haujlwm, ua rau tuag tam sim no ntawm 80-150mA hauv MOBLINK series CPUs).
• Qhov kev pab cuam font yog corrupted.

3, Siab khau raj tam sim no (200-600mA)- Ua los ntawm cov khoom siv hluav taws xob thauj khoom xau ua rau kev pib ua haujlwm ntau dhau.

• Txhawm rau kho qhov tsis raug, nws yog qhov yuav tsum tau nkag siab txog lub Circuit Court thiab motherboard cov khoom thiab cov khoom siv hluav taws xob. Cov capacitors loj feem ntau yog nyob ze ntawm cov khoom no, thiab cov terminals zoo ntawm cov capacitors txuas nrog lub hwj chim mov. Tshawb xyuas qhov rov qab ua haujlwm ntawm lub Circuit Court kom paub tseeb tias muaj lub zog hluav taws xob xau.

4, Tam sim no loj thaum lub hwj chim- Qhov no yog hais txog lub zog hluav taws xob luv luv ntawm lub motherboard qhov zoo thiab qhov tsis zoo, feem ntau tshwm sim los ntawm kev puas tsuaj rau cov khoom siv roj teeb xws li lub hwj chim amplifier Circuit Court, fais fab mov Circuit Court, fais fab mov raj, charging Circuit Court, los yog cov khoom me me txuas nrog. hauv av ntawm txoj kab hluav taws xob.

Nqe 2: Tsis Muaj Peev Xwm Txheej

Yog hais tias lub xov tooj tuaj yeem qhib thiab ua haujlwm ib txwm tab sis tsis tuaj yeem muab tua, qhov teeb meem feem ntau yog nyob rau hauv lub kaw lus kaw:

• Cheebtsam puas nyob rau hauv lub shutdown Circuit Court.
• CPU puas.
• Lub kaw lus kaw ntawm lub motherboard raug txiav tawm (lub hwj chim rau CPU lossis lub kaw lus kaw tau cuam tshuam).
• Fais fab IC puas.

Ntu 3: Pib Pib

Tsis siv neeg booting tuaj yeem tshwm sim hauv ob txoj hauv kev: khau raj qib siab thiab khau raj qis.

• High-qib khau raj: Ib qho kawg ntawm cov kab siab khau raj raug yuam mus rau hauv lub xeev siab. Qhov kev ua txhaum feem ntau yog tshwm sim los ntawm lub hwj chim IC, khau raj Circuit Court, los yog tail plug circuit.
• Qib qis khau raj: Cov kab khau raj yog rub mus rau lub xeev qis, feem ntau tshwm sim los ntawm kev ua txhaum ntawm lub voj voog khau raj, lub hwj chim Circuit Court, los yog tus Tsov tus tw plug Circuit Court (vim qee lub xov tooj muaj lub taub hau ntsaws taub hau). Them mloog mus rau varistor nyob rau hauv lub khau raj Circuit Court.

Agere chipset tsis siv neeg fais fab tuag: Agere chipset xov tooj tuaj yeem pom lub sijhawm tswb yuam kev. RTC_ALARM teeb liab txuas nrog VRTC qhov hluav taws xob los ntawm kev tawm tsam tshaj 300K. Yog tias qhov hluav taws xob tsis zoo, RTC_ALARM teeb liab mus qis, thiab 32.768KHz moos Circuit Court tsis ua haujlwm. Qhov no ua rau lub pob ua tsis tiav vim cov keyboard scan Circuit siv 32.768KHz pw tsaug zog moos. Hloov lub roj teeb thaub qab daws qhov teeb meem.

Kauj Ruam 4: Tsis siv neeg kaw

Yog hais tias lub xov tooj powers rau ib txwm tab sis kaw cia li:

• Lub xov tooj tsis tuav lub teeb liab, ua rau lub hwj chim mov tsis ruaj khov thiab kaw vim tsis muaj peev xwm tswj tau qhov hluav taws xob ruaj khov.

 

Yam khoom: