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Akai LTA-26C902, Service Manual

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Akai LTA-26C902 Service Manual Download Page 52

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Title

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Revision

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Date:

13-Apr-2005

Sheet    of 

File:

E:\USER\MJ\LP08\YLT-chn\LS08

-CHINA-0923.ddb

辅板

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JK1

CN-4

GND
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SOURCE

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MENU

KK3

VOL++

KK4

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KK5

CH--

KK6

POWER

KK7

CH+

NO KEY PRESS 3V~3.3v

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2.0V

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0.81~1.6v:CH--

1.61~2.6v:VOL+

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2.67V

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0.81~1.6v:VOL--

1.61~2.3v:MENU

2.3~3.0:source

Summary of Contents for LTA-26C902

Page 1: ...www akai ru Models LTA 26C902 LTA 32C902 LTA 37C902 ...

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Page 4: ...computer terminal display equipment Legerity convenience low power consumption Digital Photo Album Function Only for CHD W260F8P CHD W270F8P CHD W320F8P CHD W370F8P Built in DVD Module Only for CHD TD260F8 CHD TD270F8 CHD TD320F8 CHD TD370F8 Entirely Compatible to DVD SVCD VCD CD MP3 Compatible to PAL NTSC Discs High quality digital audio coaxial input enable you to feel as if sit in the theatre w...

Page 5: ...of transforming outer signal into the uniform digital signal identified by LCD display with use of System Control IC TV and AV signals input from TV Board are decoded by UOCIII to transport RGB signal which is to be transformed by TDA8759 modulus to transport 24bit RGB digital signal then it is to be transformed by GM1601 GM1501 to produce LVDS signal displayed on the screen in addition signals in...

Page 6: ...TV conveniently and know its current working status simply with a remote control 4 Built in Power Board Assembly It can transform AC 220V into DC for ICs including 24V 12V 5V and 5VS power supply in standby mode 5 K Board Assembly It consists of 7 function buttons by which users can operate the TV freely 6 Screen Assembly Screens for LS08 have the built in adverse transformer which change DC into ...

Page 7: ...700 GM1501 BD Video processor 11 U201 TDA15063H N1B06557 AV decoder 12 U402 SAA7115HL V1 Sub channel video decoder 13 U305 SM5302AS G ET High definition signal filter 14 U400 TDA8759HV 8 C1 Video signal modulus transformer 15 U5 TDA9178T N1 Video signal picture amendment 16 U600 MT46V2M32LG 4 Frame buffer ICs FUNCTION INTRODUCTION IN DETAILS Main Tuner TMI4 C22P2RW Pin Definition Description 1 AGC...

Page 8: ...ge catch process and clock display It integrates high velocity AD converter PLL high reliability DVI receiver X86 series miccontrol and LCDS inverter See the features as below Main Features High quality image zoom function Analog RGB signal input interface Intelligent output signal auto identification Integrated high power PLL output High reliable self adaptive DVI input interface 4 4 4 4 2 2 CCR6...

Page 9: ...8 B10 RX0 RX2 RX0 RX2 DVI input port B11 REXT Exterior exit resistance C6 C11 DVI 3 3 DVI 3 3V power supply D6 D8 D10 DVI 1 8 DVI 1 8V power supply A7 A11 B5 B7 C7 D7 D11 DVI GND DVI ground Low Bandwidth ADC Port C13 LBADC 33 ADC3 3Vpower supply A12 B12 C12 LBADC_IN1 LBADC_IN3 ADC analog input channel D12 LBADC_RETURN Channel analog ground D13 LBADC GND Power supply voltage analog ground OCM IC Po...

Page 10: ...Pr signal input B23 B24 B25 A24 A25 C23 C24 D24 VBLU7 VBLU0 Blue signal or U Cb Pb signal input Screen Control Port A26 PPWR Screen power control B26 PBIAS Screen bias control D26 C25 C26 PWM2 PWM0 Pulse width modulation output AC7 DCLK Pels clock output AC16 OEXTR Connect external LVDS bias resistance LVDS Port AE14 AE16 AE19 AE23 AF13 AF16 AF19 AF23 AF11 A0 A3 A0 A3 B0 B3 B0 B3 Low voltage diffe...

Page 11: ...4 EXTCLK External clock input Frame Storage Interface U24 U23 FSCLKp FSCLKn Fine storage clock output V24 V25 FSRAS FSCAS Address output V26 FSWE Write enable port W26 FSCKE Read enable port J24 FSVREF Reference voltage input K26 FSVREFVSS Reference voltage ground W25 FSVREF Reference voltage input W24 FSVREFVSS Reference voltage ground L26 FSDQS Data filter F24 F26 G23 G26 H24 H26 J25 J26 R24 R26...

Page 12: ...ply K12 K13 K14 K15 L10 L12 L13 L14 L15 L17 M10 M11 M12 M13 D_GND Power ground A1 AC D5 AC17 K3 F1 NO_CONNECT NC GM1501Internal Diagram TDA8759 TDA8759 is a triple 8 bit video converter interface The IC converts a RGB analog signal into a 24bit RGB or YUV or YCbCr digital signal or converts a YUV or YCbCr analog signal into a YUV or RGB digital signal with a sampling rate up to 81 Msps The IC supp...

Page 13: ...h temperature Output format RGB 4 4 4 YUV 4 4 4 YUV 4 2 2 CCIR 656 or YUV 4 2 2 semi planar standard on output bus I C bus control Programmable clock phase adjustment cells Amplifier bandwidth of 100 MHz Integrated PLL divider Power Downmode TDA8759 Internal Diagram Pin Description Pin Name Description 1 HREF Horizontal reference output 2 VCLK Video clock output 3 13 21 29 37 45 164 VDDO Video por...

Page 14: ... on green brightness channel input 77 REFR Pr Red red chrominance channel reference input 80 79 78 R Pr1 R Pr3 Red red chrominance channel analog input 89 92 97 101 112 121 122 124 125 160 163 TST0 TST17 Reserved for test 93 PD Power down control input 94 OE Output enable input 96 A0 I C bus address control input 102 COAST PLL control input 103 GAIN Gain input 104 CLAMP Clamp input 105 107 VSYNC1 ...

Page 15: ... Description 26 30 AGND Analog ground for digital analog cells in core 33 AVCC High voltage analog power supply 8 14V 29 AVDD 5V regulated output capable of 100mA output 7 AVDDREF Reference 5V output 13 BSLN 24 BSLP Bootstrap I O left channel 48 BSRN 37 BSRP Bootstrap I O right channel 28 COSC I O for charge discharge currents onto capacitor for ramp generator triangle wave 6 LINN 5 LINP Negative ...

Page 16: ...nput for right channel 27 ROSC Current setting resistor for ramp generator Nominally equal to 1 8 44 45 40 41 ROUTN ROUTP Class D 1 2 H bridge negative output for right channel ROUTP 40 41 O Class D 1 2 H bridge positive output for right channel 1 SD Shutdown signal for IC low shutdown high operational TTL logic levels with compliance to VCC 9 VARDIFF DC voltage to set the difference in gain betwe...

Page 17: ... difference and phase difference values Main Features supply voltage 5V 10 _DC voltage level restore sync clamp function Output buffer gain switching function 0 6dB input to output AC signal gain Channel to channel gain difference 0 5dB 5 supply voltage variation Channel to channel phase difference 3 5 degree Output signal harmonic distortion all channels 1 5 Cutoff frequency 5 8 to 37MHz variable...

Page 18: ...set input 9 DISABLE Power save function Built in pull down resistor 10 13 16 19 GND Ground 11 BOUT VOUT B V signal output 14 GOUT UOUT Analog 5V supply 17 ROUT YINB R Y signal output 12 15 18 24 VCC Analog 5V supply 20 RFC LPF lowpass filter cutoff frequency setting resistor connection 21 VFC LPF lowpass filter cutoff frequency setting voltage input 22 MUXSEL Input select signal 23 SYNCIN Filter c...

Page 19: ...ors Two improved 9 Bit CMOS analog to digital converter in differential CMOS style Automatic Clamp Control ACC for CVBS Y and C Enhanced Horizontal and vertical Sync Detection PAL delay line for correcting PAL phase errors Automatic TV VCR detection SAA7115 Internal Diagram Pin Function Pin Name Description 1 8 11 17 23 25 33 43 51 58 68 75 83 93 VDD Supply voltage port 2 TDO Test Data Output for ...

Page 20: ...or backward compatibility do not use for new applications 30 RESON RESet Output Not signal 31 SCL IIC serial clock line with inactive output path 32 SDA IIC serial data line 34 RTS0 35 RTS1 real time status or sync information controlled by subaddr 11h and 12h RTS1 35 O real time status or sync information controlled by subaddr 11h and 12h 36 RTCO Real time control output 37 AMCLK Audio master clo...

Page 21: ...O expansion port 95 XDQ data qualifier I O expansion port 96 XRDY task flag or read signal from scaler controlled by XRQT subaddr 83H 97 TRSTN Test ReSeT Not for Boundary Scan Test with internal pull up for board design without Boundary Scan connect TRSTN to ground 1 98 TCK Test Clock for Boundary Scan Test with internal pull up 2 99 TMS Test Mode Select for Boundary Scan Test or Scan Test with in...

Page 22: ...can be demodulated For the QIP90 versions this is valid only for the stereo versions Built in adaptable brightness delay circuit switchable brightness signal transmission rate Pin Description Pin Name Description 1 2 12 18 28 40 68 81 89 92 95 101 121 125 VSS GND ground 3 4 45 69 82 88 90 91 93 94 96 100 110 117 118 124 VDD Power supply 5 VREF_POS_LSL 6 VREF_NEG_LSL HPL 7 VREF_POS_LSR HPR 8 VREF_N...

Page 23: ...voltage TV processor 5 V 48 IFVO SVO CVBSI video output selected CVBS output CVBS 49 AUDIOIN4L 50 AUDIOIN4R audio 4 input left signal audio 4 input right signal 51 CVBS4 Y4 CVBS Y input 52 C4 chroma 4 input 53 AUDIOIN2L SSIF 54 AUDIOIN2R 56 AUDIOIN3L 57 AUDIOIN3R 30 AUDOUTLSL 61 AUDOUTLSR 62 AUDOUTHPL 63 AUDOUTHPR Audio input 58 CVBS3 Y3 CVBS Y input 59 C2 C3 chroma 2 3 input 55 CVBS2 Y2 CVBS Y in...

Page 24: ...upt 0 or port 0 5 4 mA current sinking direct drive of LEDs 98 99 102 109 111 116 119 120 122 123 126 128 P0 0 P0 4 P1 0 P1 7 P2 0 P2 5 P3 0 P3 3 Data port UOCⅢ Internal Diagram CHAPTER THREE SIGNAL FLOW ANALYSIS AND KEY POINT MEASURE DATA The chapter mainly introduces the receipt and dispose of the AV signal the power supply system and system control process of this TV Signal Flow Analysis 1 Vide...

Page 25: ...ng sound intermediate frequency signal SIF is sent into UOC for demodulation and sound dis Ⅲ posal then the output audio signal is zoomed in by D class TPA3002D2PHPR and is sent into the speaker at last AV companying sound the audio signal input by AV is directly disposed by UOC and zoomed in Ⅲ by TPA3002D2PHPR then transported to the speaker After the companying sound of PC DVI YPbPr are selected...

Page 26: ...26 The composition and distribution of the TV power supply please see the next page ...

Page 27: ...7 3 3V 0 3 3 5 3 3 UP6 LM2596 5 0 24 5 0 5 0 U405 LM1117 3 3 0 3 3 5 3 3 U3 78M08 12 0 8 U403 LM1117 1 8V 0 1 8 5 1 8 U503 LM1806 3 3 0 3 3 5 3 3 U505 LM1117 2 5 0 2 5 5 2 5 U506 LM1117 3 3 0 3 3 5 3 3 U501 LM2596 5 0 12 5 0 5 U502 LM2596 5 0 24 5 0 5 0 U504 LM1117 1 8V 0 1 8 5 1 8 Main Components and Socket Locations and Definitions ...

Page 28: ...scription 1 JP5 TV plane 2 JP2 Side AV 3 JP6 DVD AV output 4 JP7 Speaker 5 JP8 loudhailer 6 JP4 DVD decode board 7 JP3 outside AV input 8 JP9 Up screen screen inverter input 9 JP10 Up screen screen inverter input 10 JP12 power supply plane GND GND GND 12V 12V 12V ...

Page 29: ...HV 8 C1 Video signal AD converter C U402 SAA7115HL V1 Sub channel video decoder D U600 MT46V2M32LG 4 Frame buffer memorizer E U700 GM1601 GM1501 BD Video processor F U305 SM5302AS G ET HD signal filter G U801 AM29LV800DT 70EC Flash the TV control procedure put in it H U6 TPA3002D2PHPR Audio PA I U5 TDA9178T N1 Video signal image improve J K202 K9352N Sound surface filter K K201 K7262N Sound surfac...

Page 30: ...85 Pin86 Pin87 of U201 output R G B signal wave the E pole wave of Q171 Q172 Q173 3 RF input color stripe signal I C bus clock signal UOCIII_SCL the wave of the 98P th P pin of U201 the 11P th P pin of U5 the 4P th P pin of parent sub RF tuner ...

Page 31: ...he 22th pin of U201 the 105P th P pin of U400 5 RF input color stripe signal UOC vertical sync signal the wave of the 22th pin of U201 the 105P th P pin of U400 RF input color stripe signal UOC vertical sync signal the wave of the 22th pin of U201 the 105P th P pin of U400 ...

Page 32: ...32 6 RF input gray ladder signal the TV signal wave in the 19P th P pin of SAA7115 The wave in the 10P th P of SAA7115 also like this ...

Page 33: ...al input the wave of the 60P th P 61th pin of U201 the wave of the 2th 6P th P pin of U6 also like this 8 The 1KHz sound signal input the wave of 16P th P 17P th P 20P th P 2140P th P 41th 44P th P 45P th P pin of U6 and pins ...

Page 34: ... LM1117 3 3V 0 3 3 5 3 3 UP6 LM2596 5 0 24 5 0 5 0 U405 LM1117 3 3 0 3 3 5 3 3 U3 78M08 12 0 8 U403 LM1117 1 8V 0 1 8 5 1 8 U503 LM1806 3 3 0 3 3 5 3 3 U505 LM1117 2 5 0 2 5 5 2 5 U506 LM1117 3 3 0 3 3 5 3 3 U501 LM2596 5 0 12 5 0 5 U502 LM2596 5 0 24 5 0 5 0 U504 LM1117 1 8V 0 1 8 5 1 8 ...

Page 35: ... 24LC21 Symptom Two No picture but sound on LOGO when turning on the TV background light is bright Reason and Resolve Check the connect line in up screen and connect the line Symptom Three No picture no sound no snowflake in TV mode but AV is normal Reason and Resolve Check the outside of high frequency also bus and power supply there is no problem but no output from high frequency so the tuner is...

Page 36: ...B JUJ7 820 088 1 7 8669300150J JUJ6 693 015 PCB JUJ7 820 103 0 5 8 TV board assembly 8669700040J JUJ6 697 004 PCB JUJ7 820 128 1 9 Remote receive board assembly 8669400180J JUJ6 694 018 PCB JUJ7 820 104 0 5 10 Key press board assembly 8669400190J JUJ6 694 019 PCB JUJ7 820 091 0 5 11 Buttons 8833700110J JUJ8 337 011 0 1 12 Built in power supply module 67128017905 FSP179 4F01 0 1 13 TFT panel 682126...

Page 37: ...289100454B TAD5 C2IP1RW 1 16 Electric speaker 56224605080 Y2929 01 5W 8Ω 2 17 Electric speaker 562D6608082 Y50138 01 8W 8 Ω 2 18 Remote controller KLC5A 1 A k a i L T A 3 7 C 9 0 2 NO Name Assembly Code Assembly Number PCB NO BBreakable Ratio 1 Frame 8807400430J JUJ8 074 043 0 1 2 Back cover 8807400442J JUJ8 074 044 2 0 1 3 Base 8807000160J JUJ8 070 016 0 1 4 Main board assembly 8669000354J JUJ6 6...

Page 38: ...de menu After entering into factory mode menu sign of the factory menu M will appear factory menu and setup 1 factory menu display is below M Index 1 HWUC_BRI 0x1F The M denotes entering into factory mode now the figures of index denotes the index number now the HWUC_BRI denotes the name of adjusting item now the 0X1F denotes the numerical value 2 Each adjusting item have only one index number the...

Page 39: ...f not necessary please do not adjust it the items of index number 1 2 3 4 5 6 are not necessary to adjust Adjustment methods for factory menu 1 Select the adjusting item You can skip to the adjusting items by pressing the number key also can select the adjusting item in the order of P P when pressing the number key if the adjusting item is 1 9 input the corresponding number keys and press down OK ...

Page 40: ... AutoColor 2 White balance color temperature adjustment Requisite Meter CHROMA 7120 color analyze instrument or same function instrument contain color coordinate chroma diversion card one White balance adjusting frock request the video output range 0 1V is adjustable 750hm load one Prepare A connect all equipments switch the condition of LCD TV to AV B Set the picture of LCD TV for standard condit...

Page 41: ...lor temperature and color coordinate are contented for above request you should judge the exist of color windage phenomenon namely the value of Δuv is 0 or not If Δuv is not 0 readjust R G B value to 0 and meet color coordinate request ...

Page 42: ...19 VGA_SCL MSTR_SCL SVCLK FSCLK FSCAS RXC OCMDATA 0 7 GREEN ITRU 7 0 RED MSTR_SDA BLUE BLUE ROM_CS RX1 PBIAS DVI_SCL FSWE RX1 DVI_SDA FSCKE VGA_SDA FSDQS RX2 FSBKSEL1 FSCLK RX2 FSBKSEL0 FSDATA 0 31 RX0 AVS RX0 PPWR RED SOG FSDQM 0 3 OCM_RE FSADDR 0 11 VGA_CAB DVI_CAB PWM3 VCLK VVS VHS SEC_SDA SCRT2 FSEL CC_INT1 RGB YPbPr_SEL POWER_OFF VRED 7 0 VGRN 7 0 VBLU 7 0 ITRU 7 0 SVCLK Set_tristate2 Set_tri...

Page 43: ...gnal SPDIF Scart1_R Scart1_G Scart1_B Scart1VideoIN To GM1601 Board ToUOCIII TunerBoard Tuner_IF UOC_SW1 UOC_SW2 AGC UOCIII_SDA UOCIII_SCL UOC_SW1 UOC_SW2 MM_SCL MM_SDA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 JP5 SDA 7166102050 UOCIII_SDA UOCIII_SCL 5VB AVS2 SC2_RIN AVS1 FBLIN1 12V_dc SC1_BIN SC1_G...

Page 44: ...V47uF L202 10uH C214 10nF L213 10uH C231 10V47uF R221 390 C273 50V220nF C247 0 1uF C217 0 1uF C223 0 1uF C220 10V47uF R217 1K L209 10uH R235 100 C256 0 1uF C260 0 1uF C252 2 2uF R236 100 L204 10uH C224 0 1uF L210 10uH C230 10V47uF C225 0 1uF C279 10V10uF C280 0 1uF C278 0 1uF L216 10uH R213 47K C240 50V220nF C241 2 2uF C236 2 2uF C281 22pF C282 22pF C264 0 1uF C266 10V100uF C261 0 1uF R205 100 C23...

Page 45: ... indicate output is set to tristate Set_tristate1 ChannelSel2 ChannelSel1 GND COMB 3 NO0B 1 GND 8 NO3B 4 VEE 7 NO2B 5 Inhibit 6 NO1B 2 ADDA 9 ADDB 10 NO3A 11 NO0A 12 COMA 13 NO2A 14 NO1A 15 VCC 16 U308 NLAS4052 Teltext_HS Teltext_VS GND Sel_HsVs Low Select VGA HS VS High Select TeltextHSVS 1 2 3 4 5 6 7 8 CN303 CON8 1 2 3 4 5 6 7 8 CN304 CON8 Tel_SCL Tel_SDA Teltext_MUTE Teltext_R Teltext_G Teltex...

Page 46: ..._3 3 Y4 D_GND T14 D_GND K15 D_GND N15 D_GND T15 D_GND M16 D_GND N16 D_GND R16 D_GND R12 D_GND K13 D_GND P13 D_GND U13 D_GND M14 D_GND R14 FS_2 5 H23 FS_2 5 J23 FS_2 5 M23 FS_2 5 P23 FS_2 5 L23 FS_2 5 T23 FS_2 5 V23 FS_2 5 R23 FS_2 5 Y23 FS_2 5 AA23 FS_2 5 AB23 FS_2 5 AC23 FS_2 5 W23 FS_2 5 F23 D_GND P11 D_GND M10 D_GND M17 D_GND P17 D_GND R17 D_GND P10 D_GND L17 LVDSB_3 3 AC12 LVDSB_3 3 AD12 LVDSB...

Page 47: ...5 NC Scart2_CIn Scart2_VideoIn Video1_C_IN Video1_Y_IN SubchannelTV Strapping I2C Slave ITRU0 ITRU1 ITRU2 ITRU3 ITRU4 ITRU5 ITRU6 ITRU7 ITRU 0 7 ITRU 0 7 TCK 98 TMS 99 TDI 3 TRSN 97 TDO 2 VDDA0 23 VDDA1 17 VDDA2 11 VDDE 1 VDDE 25 VDDE 51 VDDE 75 V D D I 33 V D D I 43 V D D I 58 V D D I 68 V D D I 83 V D D I 93 VXDD 8 HPD0 72 HPD1 71 HPD2 70 HPD3 69 HPD4 67 HPD5 66 HPD6 65 HPD7 64 TEST3 77 TEST4 78...

Page 48: ...V 3 3V_ADC 1 8V_ADC 2 5V_DDR 5V 5V GND 3 3V_ADC 1 8V GND 3 3V 5V GND 1 8V GND 3 3V_ADC 3 3V_DVI 1 8V_CORE GND 3 3V_PLL 3 3V_DIG 1 8V_DVI GND 5V GND Panel_Power 3 3V_SW GND GND GND 5V_ANG 3 3V_LVDS 3 3V_LVDSA 3 3V_I O_BGA 3 3V_ADC 3 3V_LVDSB 3 3V_ADC 3 3V_LBADC 5V_SW 3 3V_ADC 3 3V_ADC 3 3V_ADC 1 8V 3 3V_ADC 3 3V_ADC 3 3V Leave1sqinch exposedcopperareaattachedtoTabofU903 Leave1sqinch exposedcopperar...

Page 49: ... 10n CA36 0 1u CA41 10n CA50 1u RA54 120K CA52 220P CA51 100n CA10 10u CA34 0 1u CA49 1u CA39 10n LA1 33uH CA25 0 1uF CA24 0 1uF CA38 10n LA2 33uH 1 2 JP7 CON2 LA4 33uH CA28 0 1uF CA26 0 1uF LA3 33uH 1 2 JP8 CON2 CA35 0 1u CA55 0 1u CA37 220uF 16V CA33 0 1u 12V_AUDIO 12V_AUDIO 12V_AUDIO 12V_AUDIO MOL MOR CA42 0 47uF CA43 0 47uF MUTE MUTE 12V_AUDIO 5VE BYP 1 GND 2 SD 3 IN2 4 VO2 5 AVDD 6 VO1 7 IN1 ...

Page 50: ...3 BA0 22 BA1 23 RAS 19 CAS 18 CS 20 WE 17 CLK 68 CKE 67 NC 14 NC 21 DQ16 31 DQ17 33 DQ18 34 DQ19 36 DQ20 37 DQ21 39 DQ22 40 DQ23 42 DQ24 45 DQ25 47 DQ26 48 DQ27 50 DQ28 51 DQ29 53 DQ30 54 DQ31 56 DQM0 16 DQM1 71 DQM2 28 DQM3 59 VDDQ 55 VDDQ 75 VDDQ 81 VDD 43 VSSQ 52 VSSQ 78 VSSQ 84 VSS 44 U601 MT48LC2M32B2TG 5 C608 0 1uF R603 150 140 C622 0 1uF CKE 53 CLK 55 CS 28 CAS 26 RAS 27 WE 25 DM0 23 DM1 56...

Page 51: ...W0 UOC_SW1 AGC SubchannelTV CIN YIN Y Pb Pr YPbPr_L YPbPr_R RIN LIN AV_VOUT VIN AVOUTL AVOUTR 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 J1B 50PIN_12 2 3 7 6 1 4 5 JPY1 AV 1 3PKA AVOUTL AVOUTR RA38 12k RA34 6 8k RA37 12k RA40 6 8k 12V_dc CA28 100uF CA29 0 1uF RA39 1k RA35 1k CA26 10uF CA27 10uF CA24 10uF CA25 10uF RA36 100 12V_PORT LOUT ROUT 12V_dc RA51 10K AV_VOUT ...

Page 52: ...hn LS08 CHINA 0923 ddb 辅板 Drawn By R1 27K R2 10K R4 4 7K R6 1K R3 10K R5 4 7K R7 1K 1 2 3 4 JK1 CN 4 GND GND KK1 SOURCE KK2 MENU KK3 VOL KK4 VOL KK5 CH KK6 POWER KK7 CH NO KEY PRESS 3V 3 3v 0 3V 1 2V 2 0V 0 0 8v CH 0 81 1 6v CH 1 61 2 6v VOL 0 3V 1 2V 2 0V 2 67V 0 0 8v STANDBY 0 81 1 6v VOL 1 61 2 3v MENU 2 3 3 0 source ...

Page 53: ...mber Revision Size B Date 13 Apr 2005 Sheet of File E USER MJ LP08 YLT chn LS08 CHINA 0923 ddb 辅板 Drawn By CK2 0 1UF CK1 16V 47U LK1 22UH 1 2 3 GREEN RED L1 LIGHT 1 2 3 4 5 JK2 CN 5 3 3V_DIG GND 2 OUT 3 Vs 1 UK1 HS0038A2M3V 3 3V_DIG LED2 IRDATA LED1 ...

Page 54: ...R3 82 C6 330pF L2 3 3uH SVIDEO C IN R13 10k R14 10k R21 330 R4 82 R6 10K R9 10K R8 10k R2 82 R16 1K R18 1K C13 0 1uF 5VOUT 5VOUT R7 10k R17 1K R11 10K EARPHONE L EARPHONE R PH SW 5VOUT AUDIO L IN AUDIO R IN R10 10K AUDIO L IN AUDIO R IN R22 47 Q1 2SC2712C Q4 2SC2712C Q5 2SC2712C Q2 2SC2712C Q3 2SC2712C C8 16V 10U C7 16V 10U C12 16V100U 5V 5V 5V 5V 5V 2 3 7 6 1 4 5 12 C 8 9 10 Y 11 K 13 S J3 AVW133...

Page 55: ...JP9 CON 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 JP10 CON 14 24V_4A 24V_4A Backlight_on_off CP26 0 1uF For panel supply ForGM1601Boardsupply 5V_4A 1 2 3 4 5 6 7 8 J171 NC State SDA IRDATA SCL CP13 470uF CP4 0 1uF Backlight_on_off Backlight_on_off DVD_On Off IRDATA SCL State SDA RP2 22k RP6 nc RP5 nc 5VB GND 1 OUT 2 VIN 3 4 4 UP7 LM1117 1 8V CP23 0 1uF GND V1_8ANA GND 5VB CP20 0 1uF GND CP22 47uF GND P_...

Page 56: ...LOW 11 LOW set all display output to 0 17 LOW 8bit bus with OCM access external ROM 13 LOW disable serial interface debug 15 LOW 18 HIGH 12 LOW 10 LOW Use TCLK 14 LOW BOOTSTRAP HEADER OPEN 1 SHUNTED 0 16 HIGH use crystal 8 bit_flash1 8 bit_flash3 INT_OSC 8 BIT_FLASH2 Custom1 Custom2 Serial Interface Debug1 Serial Interface Debug2 Serial Interface Debug3 OCMADDR 0 19 OCMDATA 0 7 1 2 3 4 5 6 7 8 RN8...

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