Summary of Contents for Hena MM7619
- Page 1 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. MM7619 Service Manual - 1 -...
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Page 2: Table Of Contents
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. 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··············································································································································································... -
Page 3: Product Spec. Introduction
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. 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... -
Page 4: Exploded View
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. Exploded View 了 - 4 -... -
Page 5: Disassembly
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. Disassembly - 5 -... -
Page 6: Assembly
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. Assembly - 6 -... - Page 7 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. - 7 -...
- Page 8 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. stem block diagram 1.1. Block diagram: 1.2. Layout diagram: - 8 -...
- Page 9 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. - 9 -...
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Page 10: Troubleshooting
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. Troubleshooting NO POWER ON: ⑴ Check the VPROC_PMU, VSYS_PMU, VIO18_PMU; ⑵ Upgraded the software; ⑶ checked the MTK8127 & DDR3 solder. VPROC_PMU: - 10 -... - Page 11 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. VSYS_PMU: 1.2V VIO18_PMU voltage: 1.8V - 11 -...
- Page 12 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. Measured LCD_VB voltage: the same as LCD no Display: battery voltage; VCC_LCD: 24.8v Checked the L710, D505 is damaged Checked the LCM_RST: 2.8V; 3.3V_TROUT: 3.3V; IO28_PMU: 2.8V No touch: checked the U200, whether colder solder; then checked TP, whether damaged.
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Page 13: Upgrading Guide
HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. WIFI not work: Changed the WIFI antenna; or changed the WIFI MODEL. No charger: Checked U8, whether damaged. Upgrading Guide Install driver: Shut down MID， press the volume + button， then connect MID to PC， then press power button ，the PC will popup the install driver。... - Page 14 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. Then choose the driver base your OS of PC Update Software - 14 -...
- Page 15 HENA DIGITAL TECHNOLOGY (SHEN ZHEN) CO. LTD. First you should confirm your MID have shut down。 Connect the computer automatically after upgrade We suggest connect the USB of PC that can supply bigger current。 - 15 -...
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