Sky Phone SKYF2PRI Feature phone User Manual
Sky Phone LLC Feature phone
User manual
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| Mirror Download [FCC.gov] | |
| Document ID | 4200978 |
| Application ID | yJe0s7xmapWaOwABSbCWng== |
| Document Description | User manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 20.36kB (254513 bits) |
| Date Submitted | 2019-03-14 00:00:00 |
| Date Available | 2019-03-14 00:00:00 |
| Creation Date | 2019-03-14 14:00:29 |
| Producing Software | PDF Printer / www.bullzip.com / FG / Freeware Edition (max 10 users) |
| Document Lastmod | 2019-03-14 14:00:29 |
| Document Title | Microsoft Word - H1822B-Service Manual修改.doc |
| Document Creator | Bullzip PDF Printer (11.6.0.2714) |
| Document Author: | zhh |
Maintenance Manual Service Manual Maintenance Manual Contents 1 H1822B Module Features ..............................................................................................................3 1.1 H1822B.......................................................................................................................................3 1.2 Basic Feature .............................................................................................................................3 1.3 Typical Application .....................................................................................................................3 2 Mainboard overview......................................................................................................................5 3 Detailed Function Circuit ..............................................................................................................7 3.1 Download Module ......................................................................................................................7 3.2 Audio Module .............................................................................................................................8 3.2.1 Micphone Circuit .....................................................................................................................8 3.2.2 Receiver Circuit ......................................................................................................................9 3.2.3 Speaker Circuit .......................................................................................................................9 3.3 FM Module ............................................................................................................................... 10 3.3.1 FM Circuit (built-in) ............................................................................................................... 10 3.4 BT Module ................................................................................................................................ 10 3.5 ATV Module.............................................................................................................................. 11 3.6 WIFI Module ............................................................................................................................. 11 3.7 RF Module ................................................................................................................................ 11 3.8 LCM Module ............................................................................................................................. 12 3.9 CAMERA MODULE ................................................................................................................. 13 3.10 KEYPAD interface ................................................................................................................. 14 4.1 RF Part ..................................................................................................................................... 15 4.2 BB Part .........................................................................................................错误!未定义书签。 Maintenance Manual 1 H1822B Module Features 1.1 H1822B Figure 1.1: H1822B Module 1.2 Basic Feature Table 1-1: Feature Platform MTK MT6250D Band GSM850/GSM900/DCS1800/PCS1900 LCM CAMERA MCP Module 32Mbits Norflash+32Mbits pSRAM BT Module Internal FM RX Module Internal Audio PA Internal SIM Dual SIM I/O Micro USB 5PIN Torch Yes Keypad Yes 1.3 Typical Application Figure 1.3.1: Typical Application with MT6250D Based platform Maintenance Manual Maintenance Manual 2 Mainboard overview Figure 2.11: top Figure 2.12: bottom Maintenance Manual Maintenance Manual 3 Detailed Function Circuit 3.1 Download Module When item U200 (pin N17 KCOL0) status is LOW, program select download mode. Item U200 (pin N17 KCOL0) connects I/O or TEST point (BOOT_L).Program can be download through USB I/O or test point when BOO_L connects GND. Step 1. whether SMD component of D/L Circuit is correct, not damaged and missing; Step 2. whether PCB route is connecting; Step 3. whether IC U200 is damaged. Figure 3.1.1 BB IC D/L interface Figure 3.1.2 USB I/O interface Maintenance Manual 3.2 Audio Module 3.2.1 Micphone Circuit Figure 3.2.1 Micphone circuit Micphone connect U200 pin U1/U2 through CAP(C504/C512) and MICBIAS voltage is about 2.8volt. Step 1. whether SMD component of MIC Circuit is correct, not damaged and missing; Step 2. whether PCB route is connecting; Step 3. whether IC U200 is damaged. Maintenance Manual 3.2.2 Receiver Circuit Figure 3.2.2 Receiver circuit Receiver connect U200 pin T4/U4 Step 1. whether SMD component of Receiver Circuit is correct, not damaged and missing; Step 2. whether IC U200 is damaged. 3.2.3 Speaker Circuit Figure 3.2.3: Speaker circuit Internal Audio PA(Class AB) is built-in BB IC chipset, which output power is no more than 0.7W. Step 1. whether SMD component of SPK Circuit is correct, not damaged and missing; Step 2. whether PCB route is connecting; Step 3. whether IC U200 is damaged. Maintenance Manual 3.3 FM Module 3.3.1 FM Circuit Figure 3.3.1 FM circuit (built-in) Step 1. whether SMD peripheral component of FM is correct, not damaged and missing; Step 2. whether PCB route is connecting; Step 3. whether IC U200 is damaged. 3.4 BT Module Internal BT module ,this module built-in U200-baseband chipset. Figure 3.4.1 BT circuit Bluetooth poor performance of the function, not active, not find BT device, next to match the circuit in normal circumstances, poor bluetooth antenna can lead to poor. Step 1. whether BT antenna is correctly placed according to guide; Step 2. whether SMD component of BT Circuit is correct, not damaged and missing; Step 3. whether PCB route is connecting; Step 4. whether IC U200 is damaged. 10 Maintenance Manual 3.5 ATV Module NONE 3.6 WIFI Module NONE 3.7 RF Module RF Module, type HS8269L, item U101 Figure 3.7.1 RF Front-end Module RF PA is the probability of the most original failure, common faults include: no network, no signal, the signal is weak, only dial emergency calls, etc. Step 1. whether GSM antenna is correctly placed according to guide; Step 2. whether SMD peripheral component of RF PA is correct, not damaged and missing; Step 3. whether PCB route is connecting;; Step 5. whether PA IC U101 SMD is OK; Step 4. whether IC U200 is damaged. 11 Maintenance Manual 3.8 LCM Module Figure 3.8.1 24PIN_ LCM interface LCM interface is a channel connecting the motherboard and the screen, generally will not be bad, only when improper welding operation. Note that control iron welding temperature. 12 Maintenance Manual 3.9 CAMERA MODULE Figure 3.9.1 CAMERA CAMERA interface is connected to the motherboard and the camera position when welding OK, then, will not cause camera failure Note that the temperature control soldering iron. 13 Maintenance Manual 3.10 KEYPAD interface Figure 3.9.1 14 KEYPAD Maintenance Manual 4 Fault Maintenance 4.1 RF Part Refer to function circuit Part 3.7 4.2 BB Part Refer to function circuit FCC Statement 1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. SAR Information Statement Your wireless phone is a radio transmitter and receiver. It is designed and manufactured not to exceed the emission limits for exposure to radiofrequency (RF) energy set by the Federal Communications Commission of the U.S. Government. These limits are part of comprehensive guidelines and establish permitted levels of RF energy for the general population. The guidelines are based on standards that were developed by independent scientific organizations through periodic and thorough evaluation of scientific studies. The standards include a substantial safety margin designed to assure the safety of all persons, regardless of age and health. The exposure standard for wireless mobile phones employs a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit set by the FCC is 1.6 W/kg. * Tests for SAR are conducted with the phone transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR level of the phone while operating can be well below the maximum value. This is because the phone is designed to operate at multiple power levels so as to use only the power required to reach the network. In general, the closer you are to a wireless base station antenna, the lower the power output. Before a phone model is available for sale to the public, it must be tested and certified to the FCC that it does not exceed the limit established by the government adopted requirement for safe exposure. The tests are performed in positions and locations (e.g., at the ear and worn on the body) as required by the FCC for each model. The highest SAR value for this model phone when tested for use at the ear is 0.509W/Kg and when worn on the body, as described in this user guide, is 0.560W/Kg(Body-worn measurements differ among phone models, depending upon available accessories and FCC requirements). While there may be differences between the SAR levels of various phones and at various positions, they all meet the government requirement for safe exposure. The FCC has granted an Equipment Authorization for this model phone with all reported SAR levels evaluated as in compliance with the FCC RFexposure guidelines. SAR information on this model phone is on file with the FCC and can be found under the Display Grant section of http://www.fcc.gov/ oet/fccid after searching on FCC ID: 2ABOSSKYF2PRI Additional information on Specific Absorption Rates (SAR) can be found on the Cellular Telecommunications Industry Asso-ciation (CTIA) web-site at http://www.wow-com.com. * In the United States and Canada, the SAR limit for mobile phones used by the public is 1.6 watts/kg (W/kg) averaged over one gram of tissue. The standard incorporates a sub-stantial margin of safety to give additional protection for the public and to account for any variations in measurements. Body-worn Operation This device was tested for typical body-worn operations. To comply with RF exposure requirements, a minimum separation distance of 15mm must be maintained between the user’s body and the handset, including the antenna. Third-party belt-clips, holsters, and similar accessories used by this device should not contain any metallic components. Body-worn accessories that do not meet these requirements may not comply with RF exposure requirements and should be avoided. Use only the supplied or an approved antenna. 15
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