SPECIFICATION LCD MONITOR Description Condition Unit Limit Nominal Headphone1 Output 1KHz 0dB 3±2 Headphone2 Output 1KHz 0dB 3±2 Headphone1 Noise No Signal <1mV <1mV Headphone2 Noise No Signal <1mV <1mV 1KHz 0dB 600±100 SPK MAX Output 1KHz 0dB 600±100 1KHz 0dB 600±100 SPK MAX Output(AV IN) 1KHz 0dB...
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Description Condition Unit Limit Nominal Video Signal Level Vp-p 0.7±0.1 75% color SYNC Level Vp-p 0.3±0.1 bar/75ohm Video out level Vp-p 1.0±0.2 Video out level(Unload) 75% color bar Vp-p 2.0±0.2 1KHz/0dB/10K 2.0±0.2 Audio out level 2.0±0.2 1KHz/0dB/10K ≤±3 20Hz ≤±3 FREQ RESP (DVD) 125Hz (20Hz~20KHz)
GENERAL ALIGNMENT INSTRUCTION The Main PCB of Monitor Modification: 1. Input voltage is 6.8V-16V, input signal is test circuit BY 5418. 2. Adjust VRB1 to get test point: 15720Hz.. 3. Adjust VRB2 to get horizontal phase shift. 4. Adjust VR1 to get good performance. 5.
TROUBLESHOOTING SYMPTOM CAUSE REMEDY LCD MONITOR PART & Defective capacitor (C201) & Replace capacitor C201. 1) Picture distortion & Defective IC (D3031). & Replace IC D3031. 2) No Picture & Defective Q7, Q8. & Replace Q7, Q8. 3) No Picture, Picture no Good &...
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SYMPTOM CAUSE REMEDY DVD PART & Power source is not correct. & Replace power source. 1) No Power & Change the position of The positive and negative does not match the unit. positive and negative. & Power button defective. & Replace power button. &...
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IC BLOCK DIAGRAM & LEAD DESCRIPTION IC201 D3031 -14-...
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IC201 D3031 B OUT SYNC OUT B DC DET SYNC SEP G OUT EXT B IN G DC DET EXT G IN R OUT EXT R IN R DC DFT CONTRAST Vcc1 F AD J V C0 OUT CLAMP APC FILTER AGC FILTER Vc0 IN AGC OUT...
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Name Description Remark Vertical reset signal for source driver Scan clock to gate driver Gate driver Scan output enable control Gate driver scan output enable control Gate driver scan output enable control default=1 Vertical start pulse 1 for gate driver (UDC=1, OUT) Vertical start pulse 1 for gate driver (UDC=1, OUT) default=1 Up/down scan direction select pin...
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IC4 M5237 INPUT OUTPUT (V1) (V0) V IN Protrction CIRCUIT THERMAL PROTECTION CIRCUIT ADJUGT Voliage START Gemrator CIRCUIT CIRCUIT Oven-currfnt PROTECTION CIRCUIT GROUND PIN NAME V IN GROUND ADJUST -19-...
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ICP1 A8430 95mV REF F Driver 1.25V Ramp Generator Enable 1.2MHz Oscillator Characteristics Symbol Test Conditions Min. Typ. Max. Units Input Voltage Range Active: ILOAD=15mA Supply Current ISUP VLOAD=12V µA Shutdown (EN=0V) Feedback Reference Voltage VREF Feedback Input Current Switch Current Limit ISWLIM Switch Frequency Switch Maximum Duty Cycle...
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U701 OZ970 1=6uA 1=3uA Soft Start Irys. CTIMR COMP ACTIVE NDR_B NDR_B "HIGH" Protectlon Irys. COMP PDR_A PDR_A POFF IBIAS & POFF HF OSC Reference 2.75V OPLAMP Phase-Shift Controller PDR_C PDR_C NDR_D NDR_D PIN NAME PIN NAME NDR_D ENA ACTIVE “HIGH” PDR_C PDR_A NDR_B...
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U10 AT24C02 START SERIAL STOP H.V. PUMP/TIMING CONTROL LOGIC LOGIC LOAD DATA RECOVERY COMP DEVICE ADDRESS COMPARATOR LOAD DATA WORD EEPROM ADDR/COUNTER Y DEC SERIAL MUX D out/ACK LOGIC V C C S C L S D A A T 2 4 C 0 2 G N D NAME NAME...
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U2 TDA2822 + Vs LREE CONTROL 5,8,12,13 INPUT INPUT IN P U T + (2 ) IN P U T + (1 ) N .C . N .C . IN P U T - (2 ) IN P U T - (1 ) G N D G N D G N D...
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U18 AT5654 PIN No Pin Name Function VINFC Focus drive input CFCerr1 For connection of capacitor for the error amp filter CFCrr2 For connection of capacitor for the error amp filter VINSL+ Op-amp input (+) for the sled driver VOMSL- Op-amp input (-) for the sled driver VOSL Op-amp output for the sled driver...
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U5 A29L800 Pin No. Description A0 – A18 Address Inputs – I/O Data Inputs/ Outputs Data Input/ Output, Word Mode (A-1) LSB Address Input, Byte Mode Chip Enable Write Enable Output Enable RESET Hardware Reset BYTE Selects Byte Mode or Word Mode Ready/BUSY –...
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BATTERY CHARGER CIRCUIT CON1 FUSE 2.5A SMD SI2307 JACK9 SK34 0.1uF R2 2K IN4001 PIN9 CON2 CON3 B1184 B1184 FUSE 1.25A SI2307 10uF 150K TO: DVD TO: TV PORT CON4 C945 78L05 0.1uF PIN4 100K 0.47uF 0.47uF R19 10M S3C9444 LM358 RES1 100K...
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DVD Part Page 1-6 DV33_V 0.1uF/0805 SC-A MO NITO R_C DCIN ON/OFF_+9V G ND MONITO R_Y (VIDEO ) MO N ITO R_C MO N ITO R_W IDE/NOR TO MONITOR MO N ITO R_CONTROL AV-IN/OUT_SW BOARD(1)CON1 AV-IN/OUT_SW AVIN/O UT_SW [ 1,6 ] MO NITO R_CO NTROL 3904 O N/OFF_+9V...
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Page 3-6 MONITOR_Y(VIDEO) MONITOR_Y(VIDEO) [ 7 ] AVC M VOUT ADCIN I/O_L AIN/OUT_L ON/OFF_DCIN AVC M AIN/OUT_R I/O_R VIDE O_+5V AVC M AUDIO IN/OUT SC-A 47pF ON/OFF_+9V DCIN [ 1 ] ON/OFF_+9V LCD_ON/OFF [ 1 ] LCD_ON/OFF ON-DCIN ON/OFF_+9V [ 1,7 ] ON-DCIN AVC M VIDE O_+5V...
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Page 4-6 [ 2,3,4,5,6,7 ] DV33 DV 33 [2,3,4 ] V 25 V 25 ON/OFF_DC [ 3 ] UR ST UR ST [ 2,3 ] ON/OFF_DCIN ON/OFF_DCIN ON-DC IN AV-IN/OU T_S W AV-IN/OU T_SW [ 6,7 ] ON-DC IN ON-DC IN [ 6,7 ] LCD _O N/OFF LCD _O N/OFF [ 6 ] DC IN...
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Page 5-6 M DI1 V1.7 RESET# RGB_SW ITC H P CE# P WR# HS YN C# VSY NC# M UTE_D AC UR ST# Y[3..6] V 20 AV CC 1 VIDEO INTERFAC E A [0..21] AD[0..7] P RD# P WR# P CE# M DI1 FLASH M A[0..11]...