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Toshiba SD-4900 BLOCK, DIAGRAMS, Overall, Diagram Block, IC201, IC501, POWER, BOARD, MT1379E

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DISC

				DVD:RF0,A,B,C,D
PICK				CD:RF0,A,B,C,D,E,F
				MDI1
	UP			LD01,LD02, IOA, V2.0

DECK	APC
DECK
MECHANISM	SLED
	(FEEDING)
	MOTOR
	M
	F+,F

DV33

DV33

DV33

IC5A1

IC502

IC503

IC506

M12L16161A

M12L16161A

M12L64164A

29LV800TA-70

512K

512K

1M

1M

2Banks

2Banks

4Banks

8BIT

16BIT

16BIT

16BIT

FLASH ROM

SDRAM

SDRAM

SDRAM

A[00:19]

PCE#

AD[0:7]

MA[00:10]

PRD#

BA0

PWR#

DCLK

DQ[00:15]

DQM[0:1]

DQ[16:31]

DQM[2:3]

MA11,BA1

RAS#

DCKE

CS#

CAS#

WE#

TXD

DV33

J6

RXD

RS232

Overall .1	BLOCK
Diagram Block	DIAGRAMS

-3

LOAD+,LOAD-	SL+,SL-	SP+,SP-	-,T+,T-		RVCC
LOAD+,LOAD-	SL+,SL-	SP+,SP-	-,T+,T-	LIMIT
				TROUT,TRIN		IC201
				STBY,TRCLOSE		IC201
				STBY,TRCLOSE

RFON,RFOP,FEO,RFL,CSO

TEO,BDO,RFRP,HTRC,V2P8

SCLK,SDEN,SDATA

IC501

	V33
SCL		IC505
SDA	KS24C021CS
		EEPROM
		MIC_DETC

24

V1P4	°‹	MT1336E
IC202		RF
LA6560		RF
MOTOR
DRIVER

VCC/+8V

TROPEN,TRSO,FOSO,DMSO,FMSO

PWMOUT2MT1379E

DSP/MPEG

	AMDAT		VCC
	AMDAT			IC5K1
	ACLK			IC5K1
	ACLK		CS5331A(ADC) MIC_IN
	ABCLK		CS5331A(ADC) MIC_IN
	ALRCK			IC5K2
				IC5K2
			KA741(OP-AMP)

			VCC/DV33/3V3M
				IC601
			CS4391(2DAC)

ADIN

				VF+
				VF-
				-27VA
				5V2A
				5V	VCC
	AC 90V~240V	POWER			RVCC
	AC 90V~240V				AVCC
DV7800M'S TOSHIBA	50HZ/60Hz				AVCC
		BOARD		12V	+12V
		BOARD		DV33
					AV33
					3V3M
				+P8V	V25


					VFD_SCK
	URST				VFD_TXD
	URST	S_REQ	IC510		M_REQ
PWRCTL		VFD_RXD	VCC		M_REQ
PWRCTL			BUFFER IC
			BUFFER IC
			74HCT244

VCC

IC901

DIG901GMS81C2012(Hynix)

FLD DISPLAY

FrontMicom

6MHz X-TAL

27MHz X-TAL

IC903

RESET IC

RC901

REMOCON RECEIVER

IC451

VRST#

PCM1603(6DAC)

ASPECT

Y[1:6]

ASPDIF

MUTE

ASDAT[0:3]

VSCK

FL

RL

CENTER

VSDA

L/R FR

RR WOOFER

ASTB

VCC

+12V

IC604

IC602/IC302/IC303/IC304

MM1623XFBE

NJM4580

VIDEO BUFFER

OP-AMP

CVBS

Y

R/Pr

G/Y

B/Pb

FL

RL

CENTER

C

COAX

OPTICAL L/R FR

RR

WOOFER

KEY Input

Contents

Page SECTION SUMMARY OWNER’S MANUAL(SD-4900) PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS OWNER’S MANUAL 3DSuroundSound Safety Precautions CAUTION IMPORTANT SAFETY INSTRUCTIONS Table of Contents Introduction Preparation Operation Reference Before Use Playable Discs Disc-relatedterms Types of video CDs Before Use (Continued) Precautions Handling the unit Cleaning the unit Notes on Discs Front Panel and Display Window Remote Control Remote Control Operation Range Remote control battery installation Rear Panel Connections Connecting to a TV Video connection (Good) Progressive Scan (ColorStream®Pro) connection S-Videoconnection (Better) Connections (Continued) Connecting to Optional Equipment Digital Multi-channelsound Before Operation General Explanation On-ScreenDisplay On-screendisplay operation Temporary Feedback Field Icons Before Operation (Continued) On-ScreenDisplay (Continued) PREPARATION Initial Settings Initial Settings General Operation Language Disc Language DVD-V DVD-A Menu Language Sound Digital Audio Output Sample Frequency 5.1 Speaker settings DVD-V DVD-A Page Parental Control Rating DVD-V Area Code DVD-V Changing the 4-digitcode If you forget your 4-digitcode Operation with DVD and Video CD Playing a DVD and Video CD Playback Setup If a menu screen is displayed General Features General Features (continued) Still Picture and Frame-by-frameplayback Slow Motion Random Repeat A-B Selecting the sound enhancement Zoom Marker Search Special DVD Features DVD-V DVD-A Checking the contents of DVD Video discs: Menus DVD Audio Discs DVD-A Moving to another GROUP Viewing another PAGE Playing an Audio CD and MP3/WMA Disc Operation with Audio CD and MP3/WMA Disc (Continued) Moving to another Track CD MP3 Repeat Track/All/Off CD MP3 WMA Changing the Audio Channel CD Operation with JPEG Disc Viewing a JPEG disc JPEG Moving to another File Still Picture To flip the picture Programmed Playback Programmed Playback with Audio CD and MP3/WMA Disc Programmed Playback with Video CD Repeat Programmed Tracks Erasing a Track from Program List Additional Information Screen Saver Dimmer Function Video Mode Setting Detailed Description of each Video Mode Speaker Settings Speaker selection Volume Size Distance Troubleshooting Language Code List REFERENCE Area Code List Specifications General System LIMITED WARRANTY DVD VIDEO PLAYER LIMITED WARRANTY DVD VIDEO PLAYER (Continued) OTHERS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS SERVICING PRECAUTIONS CABINET & MAIN CHASSIS 1. EXPLODED VIEWS EXPLODED VIEWS 1. Cabinet and Main Frame Section 2. Packing Accessory Section OPTIONAL PARTS ELECTRICAL ELECTRICAL TROUBLESHOOTING GUIDE DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING BLOCK DIAGRAMS CIRCUIT DIAGRAMS ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow 2. System operation flow 3. Test & debug flow Page Page Page Page Page DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 3) RS232 waveform during procedure(Downloading) 4) Flash R/W enable signal during download(Downloading) 2.SDRAM CLOCK 3.TRAY OPEN/CLOSE SIGNAL 1)Tray open/close waveform 2) Tray close waveform 3) Tray open waveform 4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) 5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) 6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION) 7. DISC TYPE JUDGEMENT WAVEFORM Page 8. FOCUS ON WAVEFORM 9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) 10. TRACKING CONTROL RELATED SIGNAL(System checking) 11. RF WAVEFORM 12. MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT (ASPDIF) 13.MT1379 VIDEO OUTPUT WAVEFORM 1) Full colorbar signal(CVBS) 2) Y 3) C 14.AUDIO OUTPUT FROM AUDIO DAC 1) Audio L/R 2) Audio related Signal Overall BLOCK Diagram Block DIAGRAMS IC201 MT1379E 2. Power(SMPS) Block Diagram TRANS AC90~240V DV7800M'S RFOP,RFON IC201 IC501 Diagram Block SERVO PICK M/D 4. MPEG & MEMORY Block Diagram (MPEG + DSP) MT1379 DV7800M'S TOSHIBA A/V JACK 5.1CH BOARD Diagram Block AUDIO & VIDEO Page CIRCUIT DIAGRAMS 1. POWER(SMPS) CIRCUIT DIAGRAM VF(+) Power Dead F102 is defective VF(-)Power Dead 2. SYSTEM CIRCUIT DIAGRAM 3. RF & SERVO CIRCUIT DIAGRAM 4. TIMER, 5.1CH, SCART, KARAOKE CIRCUIT DIAGRAM '03. 3. 10 R14603B TOSHIBA 5. AV/JACK CIRCUIT DIAGRAM • CIRCUIT VOLTAGE CHART Page Page 2. KEY P.C.BOARD 3. TIMER P.C.BOARD Page SECTION 4 MECHANISM OF DVD PART Gear Assembly Middle DECK MECHANISM PARTS LOCATION • Top View (With Tray) • Top View (Without Tray) • Bottom View Note DECK MECHANISM DISASSEMBLY 1.Holder Clamp (Fig. 4-1) 1-1.Clamp Assembly Disc 2.Tray Disc (Fig. 4-2) 3.Base Assembly Sled (Fig. 4-3) 3-3.Gear Assembly Rack 4. Rubber Rear (Fig. 4-3) Gear Assembly Feed Gear Assembly Middle 5. Frame Assembly Up/Down (Fig. 4-4) 6. Belt Loading(Fig. 4-4) 7. Gear pulley (Fig. 4-4) 8.Gear Loading (Fig. 4-4) 9.Guide Up/Down (Fig. 4-4) Page 1. Deck Mechanism Exploded View Page SECTION 5 REPLACEMENT PARTS LIST