Akai LCT2016 Service Manual
Akai LCT2016 - 20 Inch LCD TV Manual
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UPC - 827935511018
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Akai LCT2016 manual content summary:
- Akai LCT2016 | Service Manual - Page 1
SERVICE MANUAL Model: LCT2016 Safety Instructions 1-2 Production specification 3-5 Block Diagram 6-6 Circuit Diagram 7-24 Main IC Specification 25-25 Mechanical Dimensions 26-26 Disassembly 27-28 Spare parts list 29-29 V-chip password and software upgrade 30-32 This manual is the latest - Akai LCT2016 | Service Manual - Page 2
compo nents (tran sformers, power cords, n oise blo cking capacitors servicing this TV receiver, read the X-RAY RADIATION PRECAUTION, SAFETY INSTRUCTION part o f the service record, It is important to u se an accurate and reliable high voltage meter. 2. The only source of X-RAY RADIATION in this TV - Akai LCT2016 | Service Manual - Page 3
meta llic parts of th e cabine t, such as anten nas, termin als, screw heads, meta l overlay, control shafts, etc power cord plug prong s with th e power switch "ON". The resi stance should be mo re tha n 6M o hms. AC VOLTMETER PRODUCT SAFETY NOTICE Many e lectrical an d mechanica l parts in this TV - Akai LCT2016 | Service Manual - Page 4
Technical Specification Product Model: Screen Size: Screen Area: Aspect Ratio: External Size: Net Weight: Resolution: Color: Gray Scale: Brightness(Peak Value): Contrast(Dark Room): TV System: Power Supply: Power Consumption: Input Terminals: Agent System: LCT2016 20" diagonal 408mm(H) x 306mm(V) - Akai LCT2016 | Service Manual - Page 5
Support the Signal Mode A. D-Sub Mode (VGA) NO. Resolution 1 640 x 480 2 640 x 480 3 640 x 480 4 640 x 480 5 720 x by the Display exceeds the allowed range, a warning message "INPUT NOT SUPPORTED" shall appear on the screen. - You can confirm the input signal format from the on-screen. 4 - Akai LCT2016 | Service Manual - Page 6
R 4.3 Remote Control Ⱝ Power ( ): Press to turn on and off. Ⱟ Mute ( ): Press to mute the sound. Press twice, then press ⰵ other 0~9 number buttons; the channel changes after 2 seconds. ⰷ ⰹ ⰳ SOURCE: Press to select the signal source, such as TV, VIDEO, ⰻ ⰽ S-VIDEO, COMPONENT or VGA. ⰵ - Akai LCT2016 | Service Manual - Page 7
VI_3_A VI_3_B VI_3_C CVBS/Y VI_4_A ADC1 ADC2 ADC3 ADC4 Composite and S-Video Processor CVBS/Y C Y/C Separation Y Luma Processing 5-line Adaptive C Chroma Processing Comb YCbCr M U X Y/G Component Processor Pb/B Color YCbCr Pr/R Gain/Offset Space Conversion Output Formatter - Akai LCT2016 | Service Manual - Page 8
0805 5VCC + 1C2 1C3 1R3 100uF/16V 100nF 10K 1R4 1R1 100 NC 1 2 3 4 S S S G D D D D 8 7 6 5 1U1 FDS9435 SOP08 VCC5-TV + 1C1 1C4 100uF/16V 100nF 1C5 100nF TV_PW TV-PW 1R22 4.7K 1R2 10K/0 3 1 1Q1 2N3904/NC 2 VCC5 A A 1C24 1C25 1C26 1C27 1C28 1C29 1C30 1C31 1C32 - Akai LCT2016 | Service Manual - Page 9
2Y1 11.0592MHZ 2C2 2C3 22P 2R10 100K 22P INT INT REMOTE 2R5 reset pulse Minimum 100us, 101 active low 2R6 TV_PW VEDIO_RESET TV_PW 101 5146_RESET STBY TUNER_RST AN7522_STBY 3415_RST SCL 35 EA/VP 21 XTAL1 20 XTAL2 10 RESET 14 15 16 17 INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3 - Akai LCT2016 | Service Manual - Page 10
GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND 98 97 96 95 94 93 92 91 90 1 9 20 21 37 42 45 51 57 59 76 81 89 100 101 112 113 125 130 140 141 152 A 5 AGNDM DGND A 656D7 656D6 656D5 656D4 - Akai LCT2016 | Service Manual - Page 11
100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF INPUT JACK VCC5-TV 4C36 4C37 33pF 33pF 4R3 100K VCC33A 4Y1 14.31818MHz VCC18A 4R6 -RI 18 VI_3C 19 CH3_A33GND Y_9 43 DGND 42 656D[7..0] 656D[7..0] 20 CH3_A33VDD DVDD 41 21 CH4_A33VDD 22 CH4_A33GND 23 VI_4A 24 CH4_A18GND 25 CH4_A18VDD - Akai LCT2016 | Service Manual - Page 12
.1 46 P1.0 45 5C4 22pF TXT-VCC3 9 P3.0/ADC0 VDDP 44 VCC5-TV TXT-VCC3 10 P3.1/ADC1 RESET 43 5C5 47uF/16V 5Y1 12MHz 5R3 100K TXT-R 5R16 5R17 0/330 330/0 T-FB T-R T-FB T-R 5R13 22K 5L3 8.2uH 5C10 5C11 20 P0.6 G 33 TXT-G 5R18 330/0 T-G T-G 5R10 470 5R11 10K 150pF 100nF 21 P0 - Akai LCT2016 | Service Manual - Page 13
= 35 dB EXT_VIDEO_R 6CON3 1 2 3 EXT_VIDEO_L EXT_A_L 6FB2 50/0805 6R27 1K 6C42 101P TV-A-R TV-A-L 6FB1 50/0805 6FB7 50/0805 6CON4 PC_AUDIO 1 2 3 4 5 PC AUDIO INPUT LOUD_L TREB_R TREB_L LOUD_R ROUT RIN AGND 23 24 22 6C43 104 21 6C44 104 20 6C45 104 19 6C47 104 18 6EC8 2.2U/16V 17 12 4 3 7 - Akai LCT2016 | Service Manual - Page 14
23 B 7C33 1nF 7C31 1uF 7C32 1uF 7C34 1nF + + TV-A-L TV-A-R TV-A-L TV-A-R 12 I2C_CL 13 I2C_DA 14 I2S_CL 15 I2S_WS 16 I2S_DA_OUT 17 I2S_DA_IN1 18 ADR_CL 19 DVSUP 20 DVSS 21 I2S_DA_IN2 22 RESETQ VCC5-TV 7R5 100 7U2 MSP34x5G QFP44-6 VCC5-TV 7R10 10K/NC 7R6 100 7R4 NC 7R12 4.7K 3 7R9 - Akai LCT2016 | Service Manual - Page 15
10 9 H_SYNCO 12 11 14 13 16 15 RXE0RXE0+ 18 17 RAO6 RXE1- 20 19 RAO4 RXE1+ 22 21 RAO3 24 23 RAO1 RXE2- 26 25 RXE2+ 10K/NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 VDD VDD GND GND RX0RX0+ GND RX1RE1+ GND RX2RX2+ GND RXCLKRXCLK+ GND RX3RX3+ GND D-MAP-S CON 1 2 - Akai LCT2016 | Service Manual - Page 16
5 4 3 2 1 D D 2 4 6 9J1C 5 YUV-Cr 9J1B 3 YUV-Cb 9J1A 1 YUV-Y PB Y PR 9L10 FB/0805 9L9 FB/0805 9L1 FB/0805 2 3 1 2 3 1 2 3 1 9D2 9D3 9D4 BAV99 BAV99 BAV99 5VCC 9C24 9C27 9C28 9R7 NC 9R8 NC 9R9 NC 75 75 75 9R6 101 9R5 101 9R4 101 9R13 101 9R14 101 9R15 101 9C3 473 9C2 473 - Akai LCT2016 | Service Manual - Page 17
1 10Q4 2 10R8 470 10C55 100nF 1 0805 10L12 10C56 FB 10uF VCC5-TV 2 10C4 100nF 10R25 100K 10C23 47uF 1 10D1 1N4148 10C66 100nF 10C44 4700pF 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 2 FB 10C18 100nF 10C3 10C27 10C19 100nF 100nF 100nF 10C1 100uF 1 10L14 - Akai LCT2016 | Service Manual - Page 18
17 - Akai LCT2016 | Service Manual - Page 19
AINOPR AINVGR AGND ++ TPD1e6l Parts TP15 YPBPR1_R YPBPR1_L CE110 CE111 10uF DOUT 13 14 15 16 17 18 19 20 21 22 23 24 ADCLRC DGND DVDD MODE TWO WIRE SERIAL CONTROL DEVICE ACDDORDEHSSPO0UxT34Lh COD_VOUTR 220uF/16v HPOUTL R233 47k 1 Title LCD TV - MediaTek MT8205 Solution Size Doc Number - Akai LCT2016 | Service Manual - Page 20
11 AN4 12 AP4 13 14 AN5 15 AP5 16 17 AN6 18 AP6 19 CLK2- 20 CLK2+ 21 AN7 22 AP7 23 3 24 25 26 27 LVDSVDD 28 LVDSVDD 29 082uH L/IND/SMD/0603 C154 33pF C155 33pF BLU_OUT GND C 1 Title LCD TV - MediaTek MT8205 Solution Size Doc Number B LVDS/CRT OUT Rev V0.1 Date: - Akai LCT2016 | Service Manual - Page 21
UP3_1 UP3_1 6,8 PANEL INVERTER POWER 4 OBO0 OBO1 OBO2 OBO0 L81 OBO1 L82 OBO2 L83 POWER OONB/OO3FF L84 OBO4 L85 OBO5 L86 LED_RED LED_GRN UP1_2 R81 0 FB TV/AV FB MENU FB VOLFB /SMD/1206 R. ANGLE 2 2 1 1 Title LCD TV - MediaTek MT8205 Solution Size Doc Number C BACK_LIGHT - Akai LCT2016 | Service Manual - Page 22
GNDS GNDS GNDS TU_CVBS 2 3 TU_CVBS 1R1 1 2 18 12 1 1R21 1R3 56 1R41 FB2 0 2 GNDS AV , TUNER I/O 20 TV 20 TV_GND TU_VCC TU_12V SDA SCL SIF1_OUT AF1_OUT TV_GND TV FB1 0 1J1 1 2 3 4 5 6 7 8 9 10 11 12 CON12 1 2 GNDS 4 5 M1 9 8 7 6 9 8 7 6 NC 2 3 4 5 2 3 4 5 GND HOLE M2 - Akai LCT2016 | Service Manual - Page 23
1 10uH 2 1 D3 MBRS130LTR C33 470NF FILM 2 C39 1 2 1000UF/25V 1 22 1 B R20 10 C35 100NF X7R A Title Size B Date: File: 5 Number Revision 2-Sep-2005 Sheet of D LCD TV\LCD TV.DdbDrawn By: 6 - Akai LCT2016 | Service Manual - Page 24
rca2 1 2 6 MUTEC C37 1UF X5R Q3 2 R29 1K 2N3904 5% D 1 MUTE AGND C B 2 1 R61 47K 5% AGND 23 4 A Title Size B Date: File: 5 Number Revision 2-Sep-2005 Sheet of D LCD TV\LCD TV.DdbDrawn By: 6 - Akai LCT2016 | Service Manual - Page 25
C20 50V 22UF Q3 BC327 STTH3L06 1 L3 2 D3 NTC1 400UH 3 PQ32-20 4 STTH8R06 2.5R R13 R6 68K $0.28 8 VCC 2 C6 25V 1U 9 +24V1A 7 12 +24V4A 10 11 +12V 8 9 +24V1A 7 GND 16 STBY 6 5 7 2 4 LCD-TV 200W SMPS SPEC: 1. +5V 2. +5VS 3. +12V 4.+24V 5. +24VA 4A 1A (Standby 5V) 2A 4A 1A 6.8K - Akai LCT2016 | Service Manual - Page 26
[0] 5 GB[1] 6 GB[2] 7 GB[3] 8 GND 9 VDDP 10 GB[4] 11 GB[5] 12 GB[6] 13 GB[7] 14 RB[0] 15 RB[1] 16 RB[2] 17 RB[3] 18 VDDC 19 GND 20 GND 21 VDDP 22 RB[4] 23 RB[5] 24 RB[6] 25 RB[7] 26 NC 27 NC 28 DDC_DAT 29 DDC_CLK 30 DDCROM_CLK 31 DDCROM_DAT 32 HWRESET - Akai LCT2016 | Service Manual - Page 27
Min. Nom. Max. Min. Nom. Max. A - - 3.40 - - 0.134 A1 0.25 - - 0.010 - - A2 2.50 2.72 2.90 0.098 0.107 0.114 D 31.20 1.228 D1 28.00 1.102 D2 25.35 0.998 E 31.20 1.228 E1 28.00 1.102 E2 25.35 0.998 R1 0.13 - - 0.005 - - R2 0.13 - 0.30 0.005 - 0.012 Symbol Millimeter - Akai LCT2016 | Service Manual - Page 28
case of trouble,etc.Necessitating disassemble,please disassemble in the order shown in the illustrations. 1.Removal of the Back Cover. 2.Removal of the MAIN PCB. a.Remove the screws. b.slide out the LCD chassis slightly;pull up the connector of AC cord from PCB;pull up the LCD PCB from LCD. c.Remove - Akai LCT2016 | Service Manual - Page 29
DESCRIPTION 1 FRONT_CAB_ASS_LCD2016 2 KEY_PCB_ASS_LCD2016 3 F_KEY_L2016 4 SELF TAPPING SCREW 5 20PANEL_ASS 6 BKT_2016 7 MACH_SCREW 8 SOCKET_PVC_PLATE 9 SEAT_ASS 10 MACH SCREW PART NO QTY 1 1 1 2 1 1 6 1 1 2 TYPE ASSEMBLY PART PART PART ASSEMBLY PART PART PART ASSEMBLY PART REMARK 28 - Akai LCT2016 | Service Manual - Page 30
-01 20 TI-L20160020-01 Part Description Usage Unit / unit 20.1" LCD Panel 1 piece Front Plastic Cabinet with Remote 1 piece Lens Plastic Back Cover with wall 1 piece mount bracket Plastic Base Cover 1 piece Rubber Foot 6 piece Main PCBA 1 piece Inverter PCBA 1 piece Control PCBA - Akai LCT2016 | Service Manual - Page 31
an omnipotence Password. - Press MENU button to confirm and your can select "CHANGE PASSWORD". - Suggest: Change to your familiar Password again. Software upgrade - Connect the RS-232C input jack to an external control device (such as a computer) and software upgrade. Type of connector; D-Sub - Akai LCT2016 | Service Manual - Page 32
10 11 12 13 14 15 Software upgrade Process - Power Switch OFF. - Connect the serial port of the control device to the VGA jack on the LCD-TV back panel. -VGA connection cables are not supplied with the LCD-TV. - Power Switch ON. The power indicator on the front of the panel should now display green - Akai LCT2016 | Service Manual - Page 33
- Select the file which will be update. - Press "ConNect" button - Waiting for the upgrader programing, when it is finished, the bar will display "program OK". - After the upgrader is finished, shut down the power switch, take out the VGA connection 32
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LCT2016
Safety Instructions
........................................................................
1-2
Production specification.
..............................................................
3-5
Block Diagram
................................................................................
6-6
Circuit Diagram
..............................................................................
7-24
Main IC Specification
...................................................................
25-25
Mechanical Dimensions
...............................................................
26-26
Disassembly
.............................................................................
27-28
Spare parts list
............................................................................
29-29
V-chip password and software upgrade
.....................................
30-32
Model:
SERVICE MANUAL
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing,
by the constant improvement of product.