3. TECHNICAL BRIEF
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3.2.2 Block Description
GAM Controller(GAMCON)
The GAM Controller (GAMCON) is responsible for clock gating and distribution within the GAM
module. GAMCON receives the HCLK from SYSCON and distributes to GRAPHCON, GRAM, PDI and
CDI. GAMCON also distributes the GAM reset signal to GRAPHCON, GRAM, PDI and CDI. The reset
signals CIRES_N and PDIRES_N are distributed from GAMCON to the camera and display module
respectively, see Figure. The CIPCLK is used to clock the received data into the camera data
interface. The CIPCLK can be in the range of 100 kHz to 16 MHz.
Graphics RAM (GRAM) Block
GAM includes 160 kB of graphics memory (GRAM) in order to support display screen sizes of QCIF +
alfa display size and three frame buffers when decoding QCIF video.
The GRAM can be accessed in 8, 16 or 32-bit mode. Write access takes a single AHB clock cycle.
Non-sequential read and the first access of a sequential read access takes two AHB clock cycles.
Subsequent sequential read access take a single AHB clock cycle.
The GRAM contains both frame buffer and temporary data. There are three image areas with one
used for normal MMI graphics and the other two areas used for still images, video frames or camera
frames. The three image areas can be combined into one frame buffer.
GRAM is required to transfer a VGA (640 by 480 pixels) image from the camera data interface (CDI)
over DMA at 100 MBit/s, within a 50 ms timeframe. The GRAM is used as a buffer, but the average
transfer bandwidth required is approximately 3 Mword/s (32-bit word), that is 12 MByte/s.
Graphics Controller (GRAPHCON) Block
GRAPHCON is controlled by the application CPU and can perform operations on pixels and image
areas. Images can be moved and merged with other images and text.
The GRAPHCON block receives graphical objects from GRAM and performers the appropriate
graphical manipulation. The resulting data is transfers to the display interface (PDI). GRAPHCON can
receive images from the camera data interface (CDI) and send them to the PDI automatically.
GRAPHCON performs conversion from YUV to RGB and can scale (zoom) still or video images.
Programmable Display Interface (PDI) Block
The programmable display interface (PDI) is designed to interface both parallel and serial display
modules. The display data is transferred from the 32 word FIFO on GAMCON to the display module
via the PDI block. The PDI block is built around a micro controller and executes 16-bit instruction
words to individually control the I/O ports. It has a 128 byte program memory, programmable by the
CPU, which can store up to 64 instructions.
The CPU transfers all set-up and control data to the display. Data is transferred to PDI as 32-bit words,
which in turn writes 8-bit data to the display. The programmable PDI block is configured at the
software build stage, to support either parallel interface such as PPI or serial interface such as SSI or
I2C.
Содержание U8138
Страница 1: ...Service Manual Model U8138 Service Manual U8138 P N MMBD0042101 Date November 2004 Issue 1 0 ...
Страница 49: ...3 TECHNICAL BRIEF 50 3 3 LCD Module Figure LCD Module Block Diagram Figure Main Sub LCD Driver ...
Страница 52: ...3 TECHNICAL BRIEF 53 Figure Audio Section scheme ...
Страница 62: ...3 TECHNICAL BRIEF 63 Figure TJATTE2 Block Diagram ...
Страница 90: ...4 TROUBLE SHOOTING 91 4 1 Power ON Trouble 4 TROUBLE SHOOTING ...
Страница 91: ...4 TROUBLE SHOOTING 92 Main Board Bottom side Main Board Top side ...
Страница 92: ...4 TROUBLE SHOOTING 93 4 2 USB Trouble ...
Страница 95: ...4 TROUBLE SHOOTING 96 4 5 Camera Trouble Camera control signals are generated by Marita ...
Страница 96: ...4 TROUBLE SHOOTING 97 Camera control signals are generated by Marita ...
Страница 97: ...4 TROUBLE SHOOTING 98 4 6 Main LCD Trouble LCD control signals are generated by Marita ...
Страница 98: ...4 TROUBLE SHOOTING 99 4 7 Sub LCD Trouble ...
Страница 99: ...4 TROUBLE SHOOTING 100 4 8 Keypad Backlight Trouble ...
Страница 101: ...4 TROUBLE SHOOTING 102 4 9 Folder ON OFF Trouble ...
Страница 102: ...4 TROUBLE SHOOTING 103 Be sure that magnet is here ...
Страница 103: ...4 TROUBLE SHOOTING 104 4 10 Camera Detection Trouble ...
Страница 104: ...4 TROUBLE SHOOTING 105 ...
Страница 105: ...4 TROUBLE SHOOTING 106 4 11 Camera Flash Trouble ...
Страница 106: ...4 TROUBLE SHOOTING 107 ...
Страница 108: ...4 TROUBLE SHOOTING 109 ...
Страница 109: ...4 TROUBLE SHOOTING 110 ...
Страница 110: ...4 TROUBLE SHOOTING 111 Measured 1khz Sine Wave Signal Measured 1khz Sine Wave Signal ...
Страница 112: ...4 TROUBLE SHOOTING 113 ...
Страница 113: ...4 TROUBLE SHOOTING 114 ...
Страница 114: ...4 TROUBLE SHOOTING 115 Measured 1khz Sine Wave Signal ...
Страница 116: ...4 TROUBLE SHOOTING 117 ...
Страница 117: ...4 TROUBLE SHOOTING 118 ...
Страница 118: ...4 TROUBLE SHOOTING 119 Measured Some Noise Signal ...
Страница 119: ...4 TROUBLE SHOOTING 120 D Headset Receiver Voice call Video Telephony MP3 ...
Страница 120: ...4 TROUBLE SHOOTING 121 E Headset MIC Voice call Video Telephony ...
Страница 121: ...4 TROUBLE SHOOTING 122 ...
Страница 123: ...4 TROUBLE SHOOTING 124 Figure 14 Trouble Shooting Charging ...
Страница 124: ...4 TROUBLE SHOOTING 125 Figure 15 Main Board I O connector and FET ...
Страница 127: ...4 TROUBLE SHOOTING 128 4 15 Procedure to check ...
Страница 128: ...4 TROUBLE SHOOTING 129 4 16 Checking Common Power Source Block Figure 4 3 Common Source Block Bottom ...
Страница 132: ...4 TROUBLE SHOOTING 133 4 16 4 Step 4 Figure 4 7 WCDMA PAM Block 3 3 Figure 4 7 1 PAM Power Source ...
Страница 133: ...4 TROUBLE SHOOTING 134 Step 4 Check R1631 in WCDMA PAM block ...
Страница 134: ...4 TROUBLE SHOOTING 135 Figure 4 8 Power for Radio ASIC ...
Страница 135: ...4 TROUBLE SHOOTING 136 4 16 5 Checking Regular Part Figure 4 10 Regular Circuit Diagram Figure 4 9 Regulator Block ...
Страница 140: ...4 TROUBLE SHOOTING 141 ...
Страница 141: ...4 TROUBLE SHOOTING 142 4 18 Checking Ant SW Module Block Figure 4 20 Antenna Switch Block Bottom ...
Страница 142: ...4 TROUBLE SHOOTING 143 4 19 Checking Antenna Switch Block input logic 4 19 1 Mode Logic by TP Command ...
Страница 145: ...4 TROUBLE SHOOTING 146 A EGSM Rx Mode Figure 4 21 EGSM Rx Mode ...
Страница 146: ...4 TROUBLE SHOOTING 147 B EGSM Tx Mode Figure 4 22 EGSM Tx Mode ...
Страница 147: ...4 TROUBLE SHOOTING 148 C DCS Rx Mode Figure 4 23 DCS Rx Mode ...
Страница 148: ...4 TROUBLE SHOOTING 149 D DCS Tx Mode Figure 4 24 DCS Tx Mode ...
Страница 149: ...4 TROUBLE SHOOTING 150 E WCDMA Mode Figure 4 25 WCDMA Mode ...
Страница 150: ...4 TROUBLE SHOOTING 151 4 20 Checking WCDMA Block ...
Страница 152: ...4 TROUBLE SHOOTING 153 Figure 4 30 Connection for Checking Control Signal ...
Страница 153: ...4 TROUBLE SHOOTING 154 Figure 4 30 Control signal ...
Страница 154: ...4 TROUBLE SHOOTING 155 4 20 4 Checking RF TX Level Figure 4 31 Test Point RF TX Level ...
Страница 155: ...4 TROUBLE SHOOTING 156 Figure 4 32 Connection for Checking RF TX Level ...
Страница 156: ...4 TROUBLE SHOOTING 157 To verify that the phone fulfils requirements on maximum output power ...
Страница 162: ...4 TROUBLE SHOOTING 163 Figure 4 36 RX I Q signal ...
Страница 164: ...4 TROUBLE SHOOTING 165 ...
Страница 165: ...4 21 Checking GSM Block 4 TROUBLE SHOOTING 166 ...
Страница 168: ...4 TROUBLE SHOOTING 169 ...
Страница 169: ...4 21 5 Checking RF Tx Path A GSM Tx path Level 4 TROUBLE SHOOTING 170 Figure 4 40 GSM DCS Tx Path Level ...
Страница 170: ...4 TROUBLE SHOOTING 171 Figure 4 41 Test Point of GSM DCS Tx path ...
Страница 172: ...4 TROUBLE SHOOTING 173 C GSM RF Transceiver IN OUT Signal Check Figure 4 43 GSM Tx MODE signal ...
Страница 173: ...D GSM PAM Check 4 TROUBLE SHOOTING 174 Figure 4 44 GSM DCS Tx control signal ...
Страница 174: ...4 TROUBLE SHOOTING 175 4 21 6 Checking RF Rx Path A GSM Rx path Level Figure 4 45 GSM DCS Rx Path Level ...
Страница 176: ...4 TROUBLE SHOOTING 177 B GSM I Q Signal Check Figure 4 46 Herta IQ data and DCLK Figure 4 47 Ingela IQ signal ...
Страница 178: ...4 TROUBLE SHOOTING 179 C GSM RF Level Check Figure 4 49 GSM DCS Rx Path ...
Страница 179: ...5 1 GSM WCDMA RF Block 5 BLOCK DIAGRAM 180 5 BLOCK DIAGRAM Figure 5 1 RF Block Diagram ...
Страница 181: ...5 2 Interface Diagram 5 BLOCK DIAGRAM 182 Figure 5 2 Interface Diagram 1 ...
Страница 183: ...5 3 Detailed Interface Signal 5 BLOCK DIAGRAM 184 Figure 5 3 Interface Diagram 2 ...
Страница 184: ...5 BLOCK DIAGRAM 185 Figure 5 4 Power Diagram ...
Страница 185: ...6 DISASSEMBLY INSTRUCTION 186 6 DISASSEMBLY INSTRUCTION ...
Страница 186: ...6 DISASSEMBLY INSTRUCTION 187 ...
Страница 187: ...6 DISASSEMBLY INSTRUCTION 188 ...
Страница 188: ...6 DISASSEMBLY INSTRUCTION 189 ...
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Страница 190: ...6 DISASSEMBLY INSTRUCTION 191 ...
Страница 191: ...6 DISASSEMBLY INSTRUCTION 192 ...
Страница 192: ...6 DISASSEMBLY INSTRUCTION 193 ...
Страница 196: ...7 DOWNLOAD 197 U81X0 Download 3 Phone Model Selection 1 Press Button for Model 2 Select Model to download images ...
Страница 204: ...7 DOWNLOAD 205 U81X0 Download 11 Connect Download While Downloading After Downloading finished ...
Страница 230: ...8 CALIBRATION 231 Figure 8 11 Production Loader Downloading Figure 8 12 ITP Start Complete Window ...
Страница 232: ...8 CALIBRATION 233 Figure 8 14 Calibration FAIL Message Window Figure 8 15 Calibration Result from OUTPUT Tab View ...
Страница 233: ...8 CALIBRATION 234 Figure 8 16 Calibration Result from STATUS Tab View ...
Страница 243: ... 244 10 PCB LAYOUT ...
Страница 244: ... 245 10 PCB LAYOUT ...
Страница 245: ... 246 10 PCB LAYOUT ...
Страница 246: ... 247 10 PCB LAYOUT ...
Страница 247: ... 248 11 EXPLODED VIEW REPLACEMENT PART LIST 11 1 EXPLODED VIEW ...
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Страница 271: ...Memo 272 ...