Toshiba DR-150-SB Service manual

FILE NO. 810-200576

SERVICE MANUAL

DIGITAL VIDEO

DVD VIDEO RECORDER

D-R150-SB

OPEN/CLOSE

ON/STANDBY

456

CLEAR

INPUT SEL.

TIME SLIP

DVD TV

TV VOL

T.SEARCH

PROGRESSIVE

TOP MENU

SKIP FWDSKIP REV

STOP

PLAY

ADJUST

E A

NAV

PAU

ENTER

INSTANT

REPLAY

SKIP

CHP

QUICK

DIVIDE

DISPLAY

SUBTITLE

REC

REC MODE

ZOOM ANGLE

TV/DVR

AUDIO

SEP. 2005 S

CONTENTS

1. Precautions

2. Product Specification

3. Software Update

4. Disassembly and Reassembly

5. Troubleshooting

6. Exploded View and Parts List

7. Electrical Parts List

8. Block Diagrams

9. Wiring Diagram

10. PCB Diagrams

11. Schematic Diagrams

12. Operating Instructions

13. Circuit Operating Descriptions

14. Reference Information

1. Precautions

1-1 Safety Precautions

1-1

1) Before returning an instrument to the customer, always make a safety check of the entire instrument, including, but not limited to, the following items:

(1) Be sure that no built-in protective devices are

defective or have been defeated during servicing. (1)Protective shields are provided to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2)When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including, but not limited to, nonmetallic control knobs, insulating fish papers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or permit it to be operated without all protective devices correctly installed and functioning.

(2) Be sure that there are no cabinet openings through

which adults or children might be able to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, excessively wide cabinet ventilation slots, and an improperly fitted and/or incorrectly secured cabinet back cover.

(3) Leakage Current Hot Check-With the instrument

completely reassembled, plug the AC line cord directly into a 230V(220V ~ 240V) AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 1270 (40.7). With the instrument’s AC switch first in the ON position and then in the OFF position, measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal parts of the instrument (antennas, handle brackets, metal cabinets, screwheads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis.

Any current measured must not exceed 0.5mA. Reverse the instrument power cord plug in the outlet and repeat the test. See Fig. 1-1.

Any measurements not within the limits specified herein indicate a potential shock hazard that must be eliminated before returning the instrument to the customer.

Fig. 1-1 AC Leakage Test

(4) Insulation Resistance Test Cold Check-(1) Unplug

the power supply cord and connect a jumper wire between the two prongs of the plug. (2) Turn on the power switch of the instrument. (3) Measure the resistance with an ohmmeter between the jumpered AC plug and all exposed metallic cabinet parts on the instrument, such as screwheads, antenna, control shafts, handle brackets, etc. When an exposed metallic part has a return path to the chassis, the reading should be between 1 and 5.2 megohm. When there is no return path to the chassis, the reading must be infinite. If the reading is not within the limits specified, there is the possibility of a shock hazard, and the instrument must be repaired and rechecked before it is returned to the customer. See Fig. 1-2.

Fig. 1-2 Insulation Resistance Test

DEVICE UNDER

TEST

2-WIRE CORD

ALSO TEST WITH

PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED)

TEST ALL

EXPOSED METER

SURFACES

LEAKAGE CURRENT

TESTER

(READING SHOULD

NOT BE ABOVE

0.5mA)

EARTH

GROUND

Antenna Terminal

Exposed Metal Part

ohm

ohmmeter

Precautions

1-2

2) Read and comply with all caution and safety related notes on or inside the cabinet, or on the chassis.

3) Design Alteration Warning-Do not alter or add to the mechanical or electrical design of this instrument. Design alterations and additions, including but not limited to, circuit modifications and the addition of items such as auxiliary audio output connections, might alter the safety characteristics of this instrument and create a hazard to the user. Any design alterations or additions will make you, the servicer, responsible for personal injury or property damage resulting therefrom.

4) Observe original lead dress. Take extra care to assure correct lead dress in the following areas: (1) near sharp edges, (2) near thermally hot parts (be sure that leads and components do not touch thermally hot parts), (3) the AC supply, (4) high voltage, and (5) antenna wiring. Always inspect in all areas for pinched, out-of-place, or frayed wiring, Do not change spacing between a component and the printed-circuit board. Check the AC power cord for damage.

5) Components, parts, and/or wiring that appear to have overheated or that are otherwise damaged should be replaced with components, parts and/ or wiring that meet original specifications. Additionally, determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.

6) Product Safety Notice-Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified by shading, an ( )or a ( )on schematics and parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate.

Precautions

1-3

CAUTION : Before servicing units covered by this service manual and its supplements, read and follow the Safety Precautions section of this manual.

Note : If unforseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions. Remember: Safety First.

1-2-1 General Servicing Precautions

(1) a. Always unplug the instrument’s AC power cord

from the AC power source before (1) re-moving or reinstalling any component, circuit board, module or any other instrument assembly, (2) disconnecting any instrument electrical plug or other electrical connection, (3) connecting a test substitute in parallel with an electrolytic capacitor in the instrument.

b. Do not defeat any plug/socket B+ voltage inter-

locks with which instruments covered by this service manual might be equipped.

c. Do not apply AC power to this instrument and

/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed.

d. Always connect a test instrument’s ground lead

to the instrument chassis ground before connecting the test instrument positive lead. Always remove the test instrument ground lead last.

Note : Refer to the Safety Precautions section ground lead last.

(2) The service precautions are indicated or printed on

the cabinet, chassis or components. When servicing, follow the printed or indicated service precautions and service materials.

(3) The components used in the unit have a specified

flame resistance and dielectric strength. When replacing components, use components which have the same ratings. Components identified by shading, by( ) or by ( ) in the circuit diagram are important for safety or for the characteristics of the unit. Always replace them with the exact replacement components.

(4) An insulation tube or tape is sometimes used and

some components are raised above the printed wiring board for safety. The internal wiring is sometimes clamped to prevent contact with heating components. Install such elements as they were.

(5) After servicing, always check that the removed

screws, components, and wiring have been installed correctly and that the portion around the serviced part has not been damaged and so on. Further, check the insulation between the blades of the attachment plug and accessible conductive parts.

1-2-2 Insulation Checking Procedure

Disconnect the attachment plug from the AC outlet and turn the power ON. Connect the insulation resistance meter (500V) to the blades of the attachment plug. The insulation resistance between each blade of the attachment plug and accessible conductive parts(see note) should be more than 1 Megohm.

Note : Accessible conductive parts include metal panels, input terminals, earphone jacks, etc.

1-2 Servicing Precautions

Precautions

1-4

Electrostatically Sensitive Devices (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices(ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.

(1) Immediately before handling any semiconductor

component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.

(2) After removing an electrical assembly equipped

with ESD devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

(3) Use only a grounded-tip soldering iron to solder or

unsolder ESD devices.

(4) Use only an anti-static solder removal devices.

Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ESD devices.

(5) Do not use freon-propelled chemicals. These can

generate electrical charges sufficient to damage ESD devices.

(6) Do not remove a replacement ESD device from its

protective package until immediately before your are ready to install it.(Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive materials).

(7) Immediately before removing the protective ma-

terials from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

CAUTION : Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

(8) Minimize bodily motions when handling unpack-

aged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ESD device).

1-3 ESD Precautions

Power requirement during operation 25W Power requirement at standby 3.1W Power supply 230V AC, 50 Hz Mass 3.5kg External dimension Width 430 x Height 69 x Depth 316mm

System: Frequency synthesizer Channel coverage: PAL I VHF: A-J, 11, 13, E2-E12

Tuner UHF: E21-E69

CATV: X, Y, Z, S1-S41, 1-53 (48MHz to 464MHz, 8MHz steps)

Serial input/output terminal VHF/UHF: 75Ω, IEC Connector Signal system Standard PAL Colour TV system Laser Semiconductor laser, Wavelength: 650nm/780nm

Format

DVD-VR format DVD-Video format

Image recording system MPEG2 Sound recording system Dolby Digital M1

1.0Vp-p (75Ω), Sync signal negative,

VIDEO input Pin jack x 1 system, 1 in front

SCART socket x 2 at rear

1.0Vp-p (75Ω), Sync signal negative,

VIDEO output Pin jack x 1 system, 1 at rear

SCART socket x 2 at rear (Y) 1.0Vp-p (75Ω), Sync signal

S-VIDEO input

S-VIDEO output

Component output (Y,PB, PR)

Sync signal negative, Pin jack PB, PR output (blue, red), 0.7Vp-(75Ω), Pin jack x 1 system each (R) 0.7Vp-p (75Ω)

RGB output

(G) 0.7Vp-p (75Ω) (B) 0.7Vp-p (75Ω) SCART socket x 1 at rear (AV1

2.0V (rms), 50kΩ or below, pin

AUDIO input

(L, R) x 1 system 1 in front SCART socket x 2 at rear

2.0V (rms), 200Ω or above, pin

AUDIO output

(L, R) x 1 system 2 at rear SCART socket x 2 at rear

2-1

2. Product Specification

Product Specification

2-2

DIGITAL AUDIO OUT(COAXIAL terminal) 0.5Vp-p (75Ω), pin jack x 1 system Remote control Wireless remote control (SE-R0208)

Operating conditions

Temperature: 5°C ~ 35°C, Position: Horizontal

Clock display 24 hour digital display Clock accuracy Quartz (monthly deviation: approximately ±30 seconds)

Remote control ....................................................... 1

Batteries (R6) .......................................................... 2

Coaxial cable .......................................................... 1

Supplied Accessories Video/Audio cable .................................................. 1

OWNER’S MANUAL (INSTALLATION GUIDE) ........ 1

OWNER’S MANUAL (OPERATIONS)........................ 1

Quick Reference ...................................................... 1

• This model complies with the specifications above.

• Designs and specifications are subject to change without notice.

• This model may not be compatible with features and/or specifications that may be added in the future.

• The screen illustrations used in this Operating Guide are for reference purposes only. Because the screen illustrations

used in this Operating Guide are simplified for easy recognition, they may vary slightly from the unit’s actual screen displays.

Product Specification

2-4

MEMO

3-1

3. Software Update

3-1-1 Introduction

Toshiba will often support software update to improve the performance of DVD Recorder to the latest status.

3-1-2 How to make Main-Board(Back-end)

! Power on.

@ Disc tray open.

# Insert update CD.

$ Tray close. Set loads update-data in CD.

When update is starting normally, LED-display displays "V-UP".

% Wait until update is finished. After update is finished, LED-display displays "MP" for a moment.

And opening tray, set turns stand-by mode automatically.

It is very important : please read the below notice before updating your unit. The following events may interrupt the update process and MAY RESULT IN PERMANENT DAMAGE TO THE UNIT WHILE UPDATING

! The power cord unplugged. @ Power Outage. # Dirt or Scratches on the disc. $ Opening a disc tray during processing.

Caution

3-2

Software Update

MEMO

4-1

4. Disassembly and Reassembly

4-1 Cabinet and PCB

4-1-1 Top Cabinet Removal

1) Remove 5 Screws Œ.

2) Lift up the Top Cabinet in direction of arrow.

Fig. 4-1 Top Cabinet Removal

Note : Reassembly in reverse order.

5 SCREWS

4-2

Disassembly and Reaasembly

Fig. 4-2 Ass’y Front-Cabinet Removal

4-1-2 Ass’y Front-Cabinet Removal

1) Release 5 Hooks Œ, ´, ˇ and Ass’y Front-Cabinet ¨.

1 HOOK

3 HOOKS

1 HOOK

ASS'Y FRONT-CABINET

Disassembly and Reaasembly

4-3

4-1-3 Ass’y LOADER Removal

1) Remove 3 Screws Œ, from the Ass’y LOADER ´ and lift it up.

Fig. 4-3 Ass’y LOADER Removal

3 SCREWS

ASS'Y-LOADER

4-4

Disassembly and Reaasembly

Fig. 4-4 Main PCB and S.M.P.S. PCB Removal

4-1-4 Main PCB and S.M.P.S. PCB Removal

1) Remove 4 Screws Œ, from the Main PCB ´ and lift it up.

2) Remove 4 Screws ˇ, from the S.M.P.S. PCB ¨ and lift it up.

4 SCREWS

MAIN PCB

4 SCREWS

SMPS PCB

Disassembly and Reaasembly

4-5

4-1-5 Jack PCB Removal

1) Remove 6 Screws Œ, ´, ˇ, ¨ from the Jack PCB ˆ and lift it up.

Fig. 4-5 Jack PCB Removal

2 SCREWS

JACK PCB

1 SCREW 1 SCREW

1 SCREW

4-6

Disassembly and Reaasembly

4-1-6 DC FAN Removal

1) Remove 2 Screws Œ, from the DC Fan ´ and lift it up.

Fig. 4-6 DC FAN Removal

DC FAN

2 SCREWS

Disassembly and Reaasembly

4-7

4-2 PCB Location

Fig. 4-7 PCB Location

JACK PCB

MAIN PCB

S.M.P.S. PCB

4-8

Disassembly and Reaasembly

MEMO

5-1

5. Troubleshooting

NO Power Detected

(Stand by LED OFF)

The signal at PCON2

pin 10 is high?

The connection between

Jack and key PCB is correct?

Soldering

condition of MIC01, MIC03 is OK?

(cold soldering or short)

Yes

Check fuse

Check connection between

Jack and Key PCB

Check soldering condition and

MIC01, MIC03 peripheral

componenents.

Regulator ICs in SMPS are OK?

(Output voltage)

Yes

Change SMPS Board

Check regulator ICs and if

IC is dead change IC

Troubleshooting

5-2

CVBS(Video) output error

1 pin and 5 pin in CN03 of Jack PCB has normal level

Yes

Analog signals are

inputed normally

VIC05 (Pin 2, Pin 6)

Yes

Power is

normal(5V) at VIC05(pin1,34)?

Yes

Pin 3 in VIC05 is

in high state?

Replace the Main B/D

Check the connection between 1 pin and 5 pin in CON03 of JACK PCB and VIC05

Check the connection between

VIC05(pin1,34) and power line

(PD102, PL102).

Check the connection between

VIC05(pin3) and VR156.

Yes

Video signal of About

P-P 2V appears at Output jack?

(without Connection to TV)

Yes

Check the RCA cable

# IF Recorder is under PSO(progressive scan output) MODE, it does not

CVBS(Color-bar)

output the CVBS& S-Video, RGB signal.

Check the connection between

VIC05 and output jack

Troubleshooting

5-3

Component (Y, Cb, Cr) output error

2/6/10 Pin in C0N3 of

Jack PCB has normal level?

Yes

Analong signals are

inputted normally

VIC05(Pin 12/14/16)

Yes

Power is normal (5V) at

VIC05 (Pin 1, 34)?

Yes

Pin 15 in VIC05 is

in high state?

Replace the Main B/D

Check the connection between

2/6/10 pin in C0N3 of JACK PCB

and VIC05

Check the connection between

VIC05 (Pin 1, 34) and Power line

(7,8 pin of CON05)

Check the connection between

VIC05 and MIC01 56 pin.

Yes

Video signal of

About P-P 2V appears at Output Jack?

(without connection to TV)

Yes

Check the RCA cable

# IF Recorder is under PSO(progressive scan output) MODE, or it does not

Y(Color-bar)

output the CVBS& S-Video signal.

Check the connection between

VIC05 and output jack

Pb(Color-bar) Pr(Color-bar)

Troubleshooting

5-4

S-Video output error

1 pin and 5 pin in CON03 of

jack PCB has normal level?

Yes

Analog signals are

inputted normally

VIC05( pin 2,6)

Yes

Power is normal (5V)

at VIC05(pin 1,34)?

Yes

Pin 3 in VIC05 is

In high state?

Yes

Replace the Main B/D

Check the connection between 1 pin and

5 pin in CON03 of JACK PCB and VIC05

Check the connection between VIC05 (pin 1,34) and power line

(7, 8 pin of CON03).

Check the connection between

VIC05 (pin 3) and VR156.

Check VIC1 peripheral circuit.

Video signals of about

P-P 2V appears at output jack?

(without connection to TV)

Yes

Check the S-Video cable

Y(Color-bar)

Check the connection between

VIC05 and output jack

C(Color-bar)

Troubleshooting

5-5

AV1 (RGB) Output Error

2, 6 and 10 pin in CON03

of jack PCB

Yes

Analog signals are

inputted normally

VIC05(pin 10, 14, 15)

Yes

Power is

normal at VIC05 1,34?

Yes

RGB control signal

level is 4V at 16 pin of

SCART 1 (AV1JACK)?

Check Main PCB

Check the connection between 2,6 and

10 pin in CON03 of Jack PCB and VIC05

Check the connection between

1, 34 of VIC05 and power

Check the connection between

13pin of SIC01 and AV1 jack

Yes

RGB Video signal

appears at 7, 11, 15 pin of

AV1 output jack?

Yes

Check the RCA cable

# IF Recorder is under Component mode (in OSD setup menu),

it does not output RGB out put.

Check the connection between

VIC05 and output jack

Troubleshooting

5-6

AV1, AV2 (CVBS) output error

1 pin and 5 pin in CON03 of

jack PCB has normal

level?

Yes

Analog signal are Inputted normally

5pin of SIC05

Yes

Analog signal are

out normally

SIC01-29(AV2),30(AV1)

Yes

Check the connection between

SIC01 and SCART Jack

-AV1 ; 30 pin of SIC02 and 19 pin of AV1

-AV2 : 29 pin of SIC02 and 40 pin of AV2

Check Main PCB

Check the connection between 1 pin

and 5 pin of CON03 in Jack PCB and SIC01

Check the power

supply to 2, 4, 6pin of SIC01?

Yes

Check the I2C lin2

(between SIC01-32, 33

and MIC01(Pin 16,18)

Check the SMPS

(AL5.8V)

Troubleshooting

5-7

LINE CVBS Video Input Error

Pin 15 in VIC01

has normal level?

Yes

Pin 3 in VIC01(Input MUX)

has normal level?

Yes

CON02-5 of

jack PCB has normal level?

Check the connection between

pin15 in VIC01 and LINE pin-jack

Check the connection between

VIC01-9, 10, 11 and MIC01(pin 29,30,32)

Control signal of pic9, 10, 11 in

IC201 is as below.

LINE Input : L/H/L

AV2 Input : H/H/H

AV1 Input : L/H/H

PROG Input : L/L/L

Check the connection between CON02-5

of jack PCB and pin 3 in VIC01

Yes

Change Main PCB

Troubleshooting

5-8

Tuner Video Out Abnormal

Tuner input line signal

is OK? (Jack PCB)

Yes

Supplied power for

tuner is OK?

pin1, 3 : 5V pin16 : 33V

Yes

I2C signal pin 7, 8 of

tuner is OK?

Yes

Video output signal of Tuner is OK?

(jack PCB)

Tuner Video

Tuner line connect TV directly

Check SMPS (AL5.8V and 33V)

Check between pin 7, 8 of tuner

and MIC01.

Replace TM (tuner) block.

Yes

Refer to LINE Video line error

Troubleshooting

5-9

There's no Digital Audio Out

Check Current Digital Audio

Setting is PCM.

Yes

Check Digital Audio data

at CON03 pin 6.

Yes

Check 5V at AIC08 pin 14

Yes

Check the Cable

Check the A/V Receiver

can Decode Current

Set the Bitstream

Bit-Steam

Yes

Replace MAIN PCB

Check the AIC08 peripheral circuits.

Troubleshooting

5-10

Audio input/output error

The powers supplied to each

Audio ICs are normal?

Yes

Refer to

Audio block diagram, check

whether there is no soldering problem

each IC surrounding parts

in block.

Yes

If there is no soldering problem, check each

IC's waveform and change the IC that have problem

or check the peripheral circuits.

Check the power of Audio block

Troubleshooting

5-11

Tuner Audio Out Abnormal

Tuner line signal is OK?

Yes

Supplied power

for TIC1 (5V, 33V)is OK?

(jack PCB)

Yes

The signal from 11 pin

of tuner is OK?

Yes

Does AY101 make

18.432 Mhz signal? (Jack PCB)

Tuner line connect TV directly.

Check its power line or around elements

Check the SIF signal of tuner

Check AY101 or around elements

Yes

If Audio R/L signal (30,31pin of TIC1)

is normal, check audio line out blocks.

+ 161 hidden pages