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Philco 7M31B, Service Manual

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Skyworth RGB R&D Centre

Technical Document

1/60

SERVICE MANUAL

Design and specifications are subject to change without prior notice. (Only for Reference)

Description:

SERVICE MANUAL 7M31B

Version:V0.00

Prepared By: Hanweiwei Date: 2019-03-06
Checked By:

Date:

Approved By:

Date:

Summary of Contents for 7M31B

Page 1: ...Document 1 60 SERVICE MANUAL Design and specifications are subject to change without prior notice Only for Reference Description SERVICE MANUAL 7M31B Version V0 00 Prepared By Hanweiwei Date 2019 03 0...

Page 2: ...y 3 1 Technical Specification 4 2 System Block 6 3 List of key parts 7 4 IC General Description 10 5 Software Upgrade 39 6 Setting Hotle Mode Menu 40 7 Wiring Diagram 41 8 PCB Silkscreen 42 9 Schemati...

Page 3: ...Skyworth RGB R D Centre Technical Document 3 60 Revision History Version Number Revision Data Description of changes V0 00 2018 03 06 Initial release...

Page 4: ...kdeg 1 8 Video Noise Limited Sensitiv ity S N 30dB 51 dBu VHF 54 dBu UHF 1 9 Video Input Level 75 ohm 1 Vp p 2 Signal Receiving System 2 1 ATV Receiving System ATV Receiving System 2 1 1 NTSC M No 2...

Page 5: ...for both analogue and digital Yes 2 3 3 Antenna Input port 2 1 air 1 Cable No 2 3 4 Type of Antenna Input Port IEC169 24 Male 2 3 5 Receiving Frequency range ATV 54MHz 864MHz 2 3 6 Receiving Frequenc...

Page 6: ...Skyworth RGB R D Centre Technical Document 6 60 2 System Block...

Page 7: ...Skyworth RGB R D Centre Technical Document 7 60 3 List of key parts 3 1 Part of Mainboard...

Page 8: ...TF Z MPS 2A 18V STEP DOWN CO NVERTER SOT563 476A M16520 0060 U4P1 SMD IC MP1653GTF Z MPS 3A 17V STEP DOWN CONVERTE R SOT563 476A M16530 0060 U4P6 SMD IC MP1652GTF Z MPS 2A 18V STEP DOWN CONVERTE R SOT...

Page 9: ...5 VDE 40015248 X Capacitors CX0D6 Wuxi Jinlida Elec tronics Co Ltd MKP series Max 0 47 F 275VAC 10 5 X2 IEC 60384 14 EN 60384 14 VDE 40041383 X Capacitors CX0D3 Wuxi Jinlida Elec tronics Co Ltd MKP s...

Page 10: ...Skyworth RGB R D Centre Technical Document 10 60 4 IC General Description IC IC IC 4 1 Main IC MSD6683BQHT 8 00II...

Page 11: ...Skyworth RGB R D Centre Technical Document 11 60...

Page 12: ...Skyworth RGB R D Centre Technical Document 12 60...

Page 13: ...Skyworth RGB R D Centre Technical Document 13 60...

Page 14: ...Skyworth RGB R D Centre Technical Document 14 60...

Page 15: ...Skyworth RGB R D Centre Technical Document 15 60...

Page 16: ...Skyworth RGB R D Centre Technical Document 16 60...

Page 17: ...Skyworth RGB R D Centre Technical Document 17 60 4 2 Amplifier TPA3138D2PWPR...

Page 18: ...Skyworth RGB R D Centre Technical Document 18 60...

Page 19: ...Skyworth RGB R D Centre Technical Document 19 60 4 3 RF controller SI2151 A10...

Page 20: ...Skyworth RGB R D Centre Technical Document 20 60...

Page 21: ...Skyworth RGB R D Centre Technical Document 21 60 4 4 Earphone AMP NA 4 5 5V_STB 3 3V_STB MP1652GTF Z...

Page 22: ...Skyworth RGB R D Centre Technical Document 22 60...

Page 23: ...Skyworth RGB R D Centre Technical Document 23 60...

Page 24: ...Skyworth RGB R D Centre Technical Document 24 60 4 6 1 0V_VDDC MP1653GTF Z...

Page 25: ...Skyworth RGB R D Centre Technical Document 25 60...

Page 26: ...Skyworth RGB R D Centre Technical Document 26 60...

Page 27: ...Skyworth RGB R D Centre Technical Document 27 60 4 7 1 5V_DDR TPS562201DDCR...

Page 28: ...Skyworth RGB R D Centre Technical Document 28 60...

Page 29: ...Skyworth RGB R D Centre Technical Document 29 60...

Page 30: ...Skyworth RGB R D Centre Technical Document 30 60 4 8 EMMC THGBMNG5D1LBAIL...

Page 31: ...Skyworth RGB R D Centre Technical Document 31 60 4 9 DDR H5TQ2G63GFR TEC...

Page 32: ...Skyworth RGB R D Centre Technical Document 32 60...

Page 33: ...Skyworth RGB R D Centre Technical Document 33 60...

Page 34: ...Skyworth RGB R D Centre Technical Document 34 60...

Page 35: ...Skyworth RGB R D Centre Technical Document 35 60 4 10 POWER IC OZ5311GN A2 0 TR...

Page 36: ...Skyworth RGB R D Centre Technical Document 36 60...

Page 37: ...Skyworth RGB R D Centre Technical Document 37 60 4 11 Backlight IC OZ560EGN B1 0 TR...

Page 38: ...Skyworth RGB R D Centre Technical Document 38 60...

Page 39: ...o the USB socket enter MENU FUNCTION Software Update USB p ress ENTER OK button to begin update TV set will restart when finish Note you nee d to restart the TV set again by AC power NOTE Some other s...

Page 40: ...0 100 Set the max volume value you can adjust Power On Source AV ATV DVB C DVB T T2 HDMI1 HDMI2 Allow select which source TV will be set ever y time POWER ON Power On Volume 0 100 Set the default vol...

Page 41: ...Skyworth RGB R D Centre Technical Document 41 60 7 Wiring Diagram...

Page 42: ...Skyworth RGB R D Centre Technical Document 42 60 8 PCB Silkscreen 8 1 Silkscreen top...

Page 43: ...Skyworth RGB R D Centre Technical Document 43 60 8 2 Silkscreen bottom...

Page 44: ...Skyworth RGB R D Centre Technical Document 44 60 9 Schematic Circuit Diagram Page0 Power Tree...

Page 45: ...ndby AVDD_DDR_A STANDBY ON 5V_PCMCIA 160mA ME2345A 2A 60mA 300mA 40mA 2 8A eMMC AVDD3P3_MHL3 220mA ME2345A Title Size Docu Date Custom Wed 50mA 1 0V_VDDC_CPU AVDD_NODIE 50mA 40mA 1470mA 12V_PWR 50mA 2...

Page 46: ...R4P2 10K DC DC C9P7 100nF 16V 6 EN DC OFF VDDC VDDP 3 3V Normal 10ms PWR ON OFF L0P8 10uH R1P14 NC 0 C0P5 10uF 16V 3 3V_Normal R4P1 100K MARK1 MARK C4P59 NC 100nF 16V C3P35 2 2uF 6 3V 1 0V_VDDC_CPU C2...

Page 47: ...AUVRM IC FB6A2 100 100MHz C6A12 1uF 16V C6A08 220nF 16V L C6A21 220nF 50V R6A23 10 R6A21 10K VDD_AMP C6A07 330pF 50V C6A06 220nF 50V C6A14 220nF 50V F6A01 F3A L32V R C6A30 2 2nF 50V C6A13 1nF 50V R6A...

Page 48: ...4 B10 NC15 B11 NC16 B12 NC17 B13 NC18 B14 NC19 C1 NC20 C3 NC21 C7 NC22 C8 NC23 C9 NC24 C10 NC25 C11 NC26 C12 NC27 C13 NC28 C14 NC29 D1 NC30 D2 NC10 D3 NC31 L1 NC32 D4 NC33 D12 NC34 D13 NC35 D14 NC36 E...

Page 49: ...MSPI_DI 31 IFAGC 7 GND 26 VDD33 27 NC 6 TS_CLK 34 TS_D 7 35 TS_D 6 36 TS_D 5 37 TS_D 4 38 TS_D 3 39 TS_D 2 40 TS_D 1 41 TS_D 0 42 TS_VLD 43 TS_SY NC 44 VDD33 45 GND 22 VDD 47 I2CS_SDA 48 I2CS_SCL 1 GN...

Page 50: ...SHELL 11 SHELL 12 5V_Normal C2U3 10nF 50V 5V_Normal Q0U1 KMBT3904 1 2 3 1D D USB3_D RV3J3 ESD USB1_5V1 C2U2 10uF 6 3V WIFI_DM W1 WIFI_ON_BOARD BT_WAKE 1 WIFI_WAKE 2 GND 3 GND 4 D 5 D 6 3 3V 7 CTR 8 GN...

Page 51: ...1 Tuner R0T2 100 U1T4 SI2151 A10 GPIO2 1 SDA 2 SCL 3 AGC2 4 AGC1 5 GND 6 VDDH 9 LIF_N 10 VDDL 7 GND 8 LIF_P 11 XOUT 12 XTAL_I 13 XTAL_O 14 VDDH 15 GND 16 VDDH 17 NC 18 RF_REF 19 RF_P 20 GND 21 RF_IN 2...

Page 52: ...HDMI SOCKET DATA2 1 DATA2 SHIELD 2 DATA2 3 DATA1 4 DATA1 SHIELD 5 DAT1A 6 DATA0 7 DATA0 SHIELD 8 DATA0 9 CLK 10 CLK SHIELD 11 CLK 12 CEC 13 NC 14 SCL 15 SDA 16 DDC CEC GND 17 5V POWER 18 HOT PLUG 19...

Page 53: ...A2 A1P 12V_Panel I2C SCL A0 LVA1N1 LVA3P1 LVA3N1 LVA3N1 C0L8 220nF 50V A1 LVA1P1 Q1P11 ME2345A 1 2 3 LVA2P1 PANEL_ON OFF R3L6 0 ACLKN LVA2P1 A3 C0L9 NC 100nF 16V LVA3P1 LVA1N1 Q0L2 KMBT3904 1 2 3 12V...

Page 54: ...M WP USB2_D 10 MDI_TN 7 EMMC D3 5 PWR ON OFF 1 13 HDMI2 RX0N 8 A0 6 3 3V_Normal BRI_ADJ 1 PWR_OFF_CTR UART GND R244 1K IRIN R81 4 7K A3 HDMI1 RX2N 8 PWM SAR GPIO Vx1 LVDS PM_GPIO U1D MSD6683 SAR0 E4 S...

Page 55: ...A_DDR3 ODT A_DDR3_A10 RM91 1K CM188 100nF 16V A_DDR3_DQ2 RM21 10K AVDD_DDR0_S A_DDR3 A13 A_DDR3_A7 A_DDR3 A13 A_DDR3 RASZ A_DDR3_BA1 A_DDR3_A4 CM184 NC 100nF 16V CM180 100nF 16V A_DDR3_A15 A_DDR3_DQS0...

Page 56: ...2 NC ESD R7J21 100 2017 05 03 C1J05 33pF 50V WIFI_DM NC CN M CN1J3 1 2 3 4 5 6 7 8 9 10 11 Q1S02 KMBT3904 B 1 E 2 C 3 R7J20 470 WIFI_DP R G LED3 RED GREEN 3 1 2 4 IR NC CN F CN1J2 1 2 3 4 5 6 7 8 9 10...

Page 57: ...Skyworth RGB R D Centre Technical Document 57 60 10 Key Power Check Point U6A01 AMP VCC 12V U4P7 5V_STB U0P3 1 5V_DDR U4P1 1 0V_VDDC Q1P11 PANEL_VCC 12V U4P6 3 3V_STB U3P6 1 8V_EMMC...

Page 58: ...Skyworth RGB R D Centre Technical Document 58 60 11 Trouble Shooting 11 1 No Display 11 2 Has BackLight but no Image...

Page 59: ...Skyworth RGB R D Centre Technical Document 59 60 11 3 Has Video but no Sound 11 4 Has Main power but no BackLight...

Page 60: ...Skyworth RGB R D Centre Technical Document 60 60 11 5 No main power 12V_NOR...

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