Hena MM7619 Manuel utilisateur
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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MM7619 Service Manual
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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Prepared: 王永、熊华兵
Verified: 熊华兵
Approved: 蒋江林
Version: V1.0
Date: 2015/7/9
Product Spec. Introduction······························································································································································· - 3 -
Exploded View·····················································································································································································- 4 -
Disassembly··························································································································································································- 5 -
Assembly······························································································································································································ - 6 -
System block diagram········································································································································································- 8 -
Troubleshooting················································································································································································ - 10 -
Upgrading Guide·············································································································································································· - 13 -
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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Product Spec. Introduction
CPU: MTk8127 (ARM Cortex-A7 up to 1.3GHz)
RAM: 1GB DDR3
Internal: 8GB Flash
Removable: Micro SDHC card slot (Max 32GB)
OS: Android 4.2
Panel: 6.98" (16:9,540*960)
Touch screen: G+P
Camera: 2MP +5MP
Video: 1080P
Wifi:802.11b/g/n
Battery: 3.7V, 2300mAh
Adapter: 5V,1.5A
Accessory: USB Cable, User manual, Power adapter
Size: 8.6*98.8*188mm
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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Exploded View
了
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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Disassembly
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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Assembly
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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stem block diagram
1.1. Block diagram:
1.2. Layout diagram:
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD.
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Troubleshooting
1) NO POWER ON: ⑴Check the VPROC_PMU,VSYS_PMU,VIO18_PMU;
⑵Upgraded the software;
⑶checked the MTK8127 & DDR3 solder.
VPROC_PMU:
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