Samsung ML-1700 specifications Hvps Circuit Diagram 2/2, 4KV

Page 118

S C H E M ATIC DIAG R A M S

HVPS Circuit Diagram (2/2)

	5V	ZD401	24VS

MHV-sen

MHV-PWM

D401 1N4148

C404		R403
		R403
472		1.5M
472
12	+	14
13		14
13	-

Q401

A708-Y

R404

2.7V			C406
	R407		C406
	R407		103
R406	100K
5.6K
		R408	C405
		470	C405
		470

	IT401	D404	R410
	IT401	4KV	R410
			1/2W 560K
4
2	¡		C409

R413 MHV

1/2W 100K

CON2-19 R401				R402
47K				22K
47K				22K

C401				C402
C401				C402
473			102

U102-D

KA324

C403

D402 331

1N4148

10K

		104
R405
10K
		Q403	C407
		Q403	103
		C2316
			D403
Q402	ZD402		D1NL20U
Q402	ZD402
C945C-Y	2.7V	R409
		1/4W 4.7

	6		3KV 471	R411
5	¡ 7			MGR1/2W 20MF
5	¡ 7
1 ¡				MHV-sen
				MHV-sen
	IT-01
		5V	R412
		5V	30KF
			30KF
				C410
	C408			221
	103		MHV
			20K

R414 MGR1/2W 15MF

OPC

ZD403

130V

5V

C504

ZD501			24VS

BIAS-sen

D501			R503
D501
1N4148	472		330KF
	472
	10	+	8
			8

Q501

A708-Y

2.7V		C506
	R507	103
R506	100K
5.6K

	IT501	D504	R510
	IT501	4KV	R510	R513	SUPPLY
		4KV	1/2W 1.8M
			1/2W 1.8M
	4

BIAS-PWMR502

R501 22K

CON2-20 47K

C501 C502

473 102

24VS

										9	-
											U102-C
											KA324
											KA324

				D502				C503
				D502				C503
				1N4148				681

U103

KA78055V

R504

10K

R505

10K

Q502 C945C-Y

ZD502

2.7V

R508

470 C505

104

Q503	C507
Q503	103
C2316
R509	D503
R509	D1NL20U
1/4W 10

			R511		1/2W 50K
2 ¡			R511	C510
2 ¡	6	C509		C510
	6	C509		3KV 101	ZD503
	¡ 7	3KV 471		3KV 101	ZD503
5	¡ 7				200V
1 ¡
IT-01			MGR1/2W	BIAS-sen	R514	DEV
IT-01

		5V		R512	1/2W 50K
				R512	1/2W 50K
				30KF
	C508			R515
	C508			R515
	103		DEV	MGR1/2W 15MF
			10MF
			20K

C112	+
50V 10uF
50V 10uF

IN OUT

GND

+ C113 25V 47uF

Service Manual

11-14

Samsung Electronics

Image 118

Contents Troubleshooting PrecautionsSpecifications Block DiagramElectronics 2003 Precautions Precaution related noxious material Precaution related electric shock or firePrecaution related handling the machine Precaution when assembly/disassemblyESD Precautions Tool for Troubleshooting DCUDiagnostic Control Unit DriverAcronyms and Abbreviations LSUSample Pattern for the Test 1 A4 5% Pattern2 A4 2% Pattern 3 A4 IDC Pattern Samsung Electronics Specifications General SpecificationsElectrical Specification Controller SpecificationEnvironmental Range Paper Handling Specifications Toner Cartridge DeveloperSpecifications Printer Components Front ViewRear View Inside ViewOn Line/Error and Toner Save LEDs Control PanelCancel button Printing demoSystem Layout FuserDriver Ass’y Feeding PartTransfer Ass’y Fixing PartFuserSafety Relevant Facts LSU Laser Scanner UnitToner Cartridge Main Pbaspl Model Sdram Asic JupiterFlash Memory Sensor input circuitCover Open Sensing Paper Feeding, Toner Cartridge SensingPaper Exit Sensing DC FAN / Solenoid DrivingMain PBA PCL Model Sdram Regulator Clock Generator Buffer Motor DriveML-1710 ML-1510 ML-1750 AsicSPGPm MemorySPGPm Internal Block Diagram AHB BUSSmps & Hvps HVPSHigh Voltage Power Supply Consumption Power SMPSSwitching Mode Power SupplyRated Power Output Length of Power Cord 1830 ± 50mm Power Switch UseFuser AC Power Control Transfer Engine F/WDrive FeedingHeat Lamp Method FusingPID Method What is the Q-PID Method? 5 LSUReleasing Plastic Latches General Precautions on DisassemblyWhenever servicing the machine, you must perform as follows Top Cover Fuser FuserHeat Lamp TypeFuserQ-PID Type Unplug Thermister Harness from the Fuser cover Exit Roller LSUFan Driver Ass’yEngine Shield Ass’y Main PBASmps Transfer Roller Feed Roller Pick Up Roller & Solenoid How to use DCU DCU SetupCode Error CodeNormal Code Self Diagnostic Mode Code Description13 THV+ TRIGGER. ALL HV Self Test Button Functi on Enter Up/ Dow n Stop Remar kPaper Path Paper OutFace UpClearing Paper Jams Paper Exit Area JAM2Paper Feed Area JAM0 Around the Toner Cartridge JAM1Tips for Avoiding Paper Jams Sample Pattern Printing a DemoPrinting a cleaning sheet Consumables and Replacement Parts LED Status Display by Each ErrorPeriodic Defective Image Roller Defective image Typical defectSamsung Electronics Vertical Black Line and Band Bad imageVertical White Line Horizontal Black Band Black/White SpotLight Image Dark Image or a BlackUneven Density BackgroundGhost Satins on the Face Satins on Back Blank Page Print outWrong Print Position Bad discharge2 JAM 3 JAM 4 JAMMulti-Feeding Paper rolled in the FuserPaper rolled in the Toner Cartridge OPC Drum All LEDs blinking Scan Error All LEDs blinking Fuser ErrorMalfunction Paper Empty Not function of the gear of the fuser due to melting awayPaper Empty without indication No lamp on when the cover is open Cover OpenNo Power Defective motor operationVertical Line Getting Curved Service for the Life of Toner Cartridge Toner Cartridge ServicePrecautions on Safe-keeping of Toner Cartridge Redistributing TonerSigns and Measures at Poor toner cartridge ImageFault Signs Cause & Check Solution White Black spot Bad Environment of The Software Printer is not workingUtilities program Abnormal Printing Spool Error How to delete the data in the spool managerExploded Views and Parts List 11-1 11-2 11-3 Main Assembly Parts List Unit Assembly Frame Unit Assembly Parts List Frame Unit Assembly Parts ListCont Drive Unit Assembly Drive Unit Assembly Parts ListCassette Unit Assembly Cassette Unit Assembly Parts List Fuser Unit Assembly Fuser Unit Assembly Parts List Samsung Electronics 9Block Diagram 9.1 PCL Model SPL Model Motor DR PART’SConnection Diagram PCL ModelComputer Schematic Diagrams PCL Main Circuit Diagram 1/7PCL Main Circuit Diagram 2/7 PCL Main Circuit Diagram 3/7 PCL Main Circuit Diagram 4/7 PCL Main Circuit Diagram 5/7 PCL Main Circuit Diagram 6/7 PCL Main Circuit Diagram 7/7 SPL Main Circuit Diagram 1/5 SPL Main Circuit Diagram 2/5 SPL Main Circuit Diagram 3/5 SPL Main Circuit Diagram 4/5 SPL Main Circuit Diagram 5/5 Hvps Circuit Diagram 1/2 THVHvps Circuit Diagram 2/2 4KVSmps Circuit Diagram 110V 1/2 Smps Circuit Diagram 110V 2/2 CON2-14MANUAL CON2-25EXIT