Samsung DVR-R155, DVR-R156, DVR-R150 Schematic
DVD- RECORDER
Chassis:
Nexus (4th Generation)
BASIC : DVD-R155
Application Models
: DVD-R155 / DVD-R150 /
DVD-R156
Application Areas
: AUS, EUR, XEB, XEC, XEE, XEF,
XEG, XEH, XEN, XEO, XEU, XET
SERVICE
ΠMulti format recording
DVD-RW/ DVD-R
´ Multi format playback
DVD/ DVD-RAM/ DVD-RW/ DVD-R
CD/ CD-R/ CD-RW/ MP3/ JPEG/ VCD
ˇ Recording mode
XP(1Hour)/ SP(2Hour)/ LP(4Hour)/ EP(6~8Hour)
¨ Progressive scan
ˆ DV Input
Ø 49mm Slim Design
∏ Quick Recording
” HDMI Output
High Definition Multimedia Interface out
(Digital AV output)
Manual
DVD-RECORDER Merit & Character regarding Product
SERVICE MANUAL
DVD-R155 / DVD-R150 / DVD-R156
© Samsung Electronics Co., Ltd. FEB. 2007
Printed in Korea
AK82-01085A
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
international and/or domestic law.
Area Web Site
North America URL ; http://service.samsungportal.com
Latin America URL ; http://latin.samsungportal.com
CIS URL ; http://cis.samsungportal.com
Europe URL ; http://europe.samsungportal.com
China URL ; http://china.samsungportal.com
Asia URL ; http://asia.samsungportal.com
Mideast & Africa URL ; http://mea.samsungportal.com
◆ If you want to know additional information which is not included on this
Service Manual, Please refer to the SKP(Samsung Knowledge Portal)
web site.
ELECTRONICS
CONTENTS
1. Precautions 1-1 ~ 1-6
1-1 Safety Precautions (1-1)
1-2 Servicing Precautions (1-3)
1-3 ESD Precautions (1-4)
1-4 Handling the optical pick-up (1-5)
2. Product Specification 2-1 ~ 2-4
2-1 Product Specification (2-1)
2-2 Chassis Product Specification (2-2)
2-3 Option Product Specification (2-3)
3. Software Update 3-1 ~ 3-2
3-1 Drive Firmware Update (3-1)
4. Disassembly and Reassembly 4-1 ~ 4-6
4-1 Cabinet and PCB (4-1)
4-2 PCB Location (4-6)
5. Trouble Shooting 5-1 ~ 5-10
6. Exploded View and Parts List 6-1 ~ 6-8
6-1 Cabinet Assembly (DVD-R150) (6-2)
6-2 Cabinet Assembly (DVD-R155) (6-4)
6-3 Cabinet Assembly (DVD-R156) (6-6)
7. Electrical Parts List 7-1 ~ 7-16
8. Block Diagrams 8-1 ~ 8-6
8-1 All Block Diagram (8-2)
8-2 Internal Block Diagram (8-3)
8-3 S5L3210 Block Diagram (8-4)
8-4 SAA7138 Block Diagram (8-5)
9. Wiring Diagram 9-1 ~ 9-2
10. PCB Diagrams 10-1 ~ 10-8
10-1 Main PCB (10-2)
10-2 Jack PCB (10-4)
10-3 Key PCB (10-7)
10-4 HDMI PCB (DVD-R155, DVD-R156) (10-8)
11. Schematic Diagrams 11-1 ~ 11-20
◆ Block Identification of Main PCB (11-2)
11-1 S.M.P.S (Jack PCB) (11-3)
11-2 System Control (Jack PCB) (11-4)
11-3 Connector (Jcak PCB) (11-5)
11-4 Front AV (Jack PCB) (11-6)
11-5 SCART I/O (Jack PCB) (11-7)
11-6 AV I/O Select (Jack PCB) (11-8)
11-7 NTSC Tuner (Jack PCB) (11-9)
11-8 AV out (Jack PCB) (11-10)
11-9 MPEG CODEC (Main PCB) (11-11)
11-10 DDR_SDRAM (Main PCB) (11-12)
11-11 IEEE1394_PHY (Main PCB) (11-13)
11-12 ARAPI FLASH MEMORY (Main PCB) (11-14)
11-13 Connector (Main PCB) (11-15)
11-14 SAA7138_AV Decoder (Main PCB) (11-16)
11-15 Function-KEY (Function PCB) (11-17)
11-16 HDMI Trammitter (HDMI PCB (DVD-R155, DVD-R156)) (11-18)
11-17 HDMI CEC (HDMI PCB (DVD-R155, DVD-R156)) (11-19)
12. Operating Instructions 12-1 ~ 12-10
CONTENTS
13. Circuit Operating Descriptions 13-1 ~ 13-26
13-1 Power (13-1)
13-2 DVD Processor (13-4)
13-3 SERVO (DVP Multi Drive) (13-20)
13-4 Tuner (13-25)
13-5 IF (13-26)
14. Reference Information 14-1 ~ 14-12
14-1 Introduction to DVD (14-1)
14-2 DVD-Video Format (14-3)
14-3 About IEEE1394 (14-9)
CONTENTS
Samsung Electronics 1-1
1. Precautions
1-1 Safety Precautions
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
(READING SHOULD
NOT BE ABOVE
0.5mA)
EARTH
GROUND
DEVICE
UNDER
TEST
TEST ALL
EXPOSED METER
SURFACES
2-WIRE CORD
ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)
LEAKAGE
CURRENT
TESTER
Antenna
Terminal
Exposed
Metal Part
ohm
ohmmeter
Precautions
1-2 Samsung Electronics
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
Samsung Electronics 1-3
1-2 Servicing Precautions
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.
Precautions
1-4 Samsung Electronics
1-3 ESD Precautions
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).
Precautions
Samsung Electronics 1-5
1-4 Handling the optical pick-up
The laser diode in the optical pick up may suffer electrostatic breakdown because of potential static electricity from clothing and your body.
The following method is recommended.
(1) Place a conductive sheet on the work bench (The
black sheet used for wrapping repair parts.)
(2) Place the set on the conductive sheet so that the
chassis is grounded to the sheet.
(3) Place your hands on the conductive sheet(This
gives them the same ground as the sheet.)
(4) Remove the optical pick up block
(5) Perform work on top of the conductive sheet. Be
careful not to let your clothes or any other static
sources to touch the unit.
◆ Be sure to put on a wrist strap grounded to the
sheet.
◆ Be sure to lay a conductive sheet made of copper
etc. Which is grounded to the table.
Fig.1-3
(6) Short the short terminal on the PCB, which is in-
side the Pick-Up ASS’Y, before replacing the PickUp. (The short terminal is shorted when the PickUp Ass’y is being lifted or moved.)
(7) After replacing the Pick-up, open the short termi-
nal on the PCB.
WRIST-STRAP
FOR GROUNDING
1M
THE UNIT
1M
CONDUCTIVE SHEET
Precautions
1-6 Samsung Electronics
MEMO
Samsung Electronics 2-1
Power requirements AC 220-240V, 50Hz
Power consumption 21Watts
General
Weight 2.6 kg
Dimensions 430mm(W) x 240mm(D) x 49mm(H)
Operating temp +5°C to +35°C
Other conditions Keep level when operating. Less than 75% operating humidity
Video Composite Video : 1.0 V p-p at 75ohm load, sync negative
Audio Max. Audio input level : 2Vrms
Input DV Input IEEE 1394(4p) compatible jack
Receivable Channels PAL B/G, D/K, I
Scart Jack AV2 (Scart Ext) Video : Composite, RGB Audio : analogue
Audio
Analogue output jacks X 2
Optical/coaxial digital audio output
Composite Video : Video output jack X 1
Output
Video S-Video output X 1 (Y: 1.0Vp-p, C:0.286Vp-p at 75 ohm load)
Component output X 1 (Y: 1.0Vp-p ,Pb:0.70Vp-p, Pr:0.70Vp-p at 75ohm load)
HDMI/DVI output x 1 (576p, 720p, 1080i)
Scart Jack AV1 (Scart TV) Video : Composite, RGB Audio : analogue
Picture compression format MPEG-II
Audio compression format Dolby digital 2ch/256kbps, MPEG-II
Recording
Recording Quality
XP (about 8 Mbps), SP (about 4 Mbps), LP (about 2 Mbps),
EP (about 1,2 Mbps or about 0,8 Mbps)
Audio frequency characteristics 20 Hz ~ 20 KHz
2. Product Specification
2-1 Product Specification
General Model Name DVD-R135 DVD-R155 DVD-R150
INPUT SELECT(DV/AV1/AV2/AV3/PR) DV/AV1/AV2/AV3/PR DV/AV1/AV2/AV3/PR DV/AV1/AV2/AV3/PR
Scart Jack-1 A/V Input/Output Rear AV1 AV1 AV1
Scart Jack-2 A/V with RGB Input Rear AV2 AV2 AV2
CVBS Output - RCA Jack Rear x1 x1 x1
Audio Output -RCA Jack Rear x2 (L,R) x2 (L,R) x2 (L,R)
S-Video Output Rear x1 x1 x1
Component Video out Rear x1(Y,Pb,Pr) x1(Y,Pb,Pr) x1(Y,Pb,Pr)
Digital Audio Out (Optical) Rear x1 x1 x1
Digital Audio Out (Coaxial) Rear x1 x1 x1
Rear - - Front x1(AV3) x1(AV3) x1(AV3)
Rear - - -
Front x1 ( L,R / AV3) x1 ( L,R / AV3) x1 ( L,R / AV3)
S-Video Input Rear - - DV Input Front x1 x1 x1
HDMI Output Rear x1 x1 HDMI-CEC Yes Yes DVD-RAM Yes Yes Yes
DVD-RW Yes Yes Yes
DVD-R Yes Yes Yes
DVD+RW Yes Yes DVD+R Yes Yes DUAL LAYER RECORDING -R -R -R
MODE XP/SP/LP/EP/SEP XP/SP/LP/EP/SEP XP/SP/LP/EP/SEP
Drive Speed x2 x2 x2
MPEG2 (XP/SP/LP/EP) 1/2/4/8 1/2/4/8 1/2/4/8
EZ REC - Yes Yes
Broadcast System PAL,SECAM -B/G,D/K,I PAL,SECAM -B/G,D/K,I PAL,SECAM -B/G,D/K,I
Auto CH Sorting & Mapping Yes Yes Yes
Station Name Display Auto Detect Auto Detect Auto Detect
Back-Up Type & Time EEPROM / Permanent EEPROM EEPROM / Permanent
Auto Clock Setting Yes Yes Yes
Accessory HDMI - HDMI Cable Yes - -
Product Specification
2-2 Samsung Electronics
2-2 Chassis Product Specification
TERMINALS
(Input/Output)
CVBS Input - RCA Jack
Audio Input - RCA Jack
RECORDING
Disc Media
TUNER
CLOCK
RECORDING
TIME/MODE
CHASSIS
Product Specification
Samsung Electronics 2-3
2-3 Option Product Specification
Description Fig Description Parts No Remark
Remote
Control
Batteries for
Remote Control
AK59-00061A
4301-001035
Model Standard of
DVD-R155/XEU
Model Standard of
DVD-R155/XEU
S.N.A
Model Standard of
DVD-R155/XEU
Model Standard of
DVD-R155/XEU
S.N.A
Model Standard of
DVD-R155/XEU
Model Standard of
DVD-R155/XEU
AK68-01273A
AK68-01277A
AC39-42001R
AC39-00017A
User’s Manual
Quick Guide
Video/Audio
Cable
RF Cable
Product Specification
2-4 Samsung Electronics
MEMO
Samsung Electronics
3-1
3. Software Update
3-1 Drive Firmware Update
3-1-1 Introduction
When you can not record and play on specific recording media (especially on newly available DVD-RAM, DVD-RW or DVD-R).
3-1-2 How to make an update disc
• Write the downloaded file onto a blank CD-R or CD-RW disc, using the following settings :
1) Download the software update file from the samsung internet site. (www.samsung.com)
2) Write the file to disc using the CD-RW of your computer.
• Recommended Application Program
- Nero Burning / Easy CD Creator ..etc
• Option
- Extension name : “*.SMD”
- Multisession : No Multisession
- File name lenght : Max. of 11 = 8 + 3
- Format : Mode 1
- Character set : ISO 9660 or Joliet Format
- CD Close & Dise at once
N O T E
It is very important : please read the below notice below before upditang your unit.
The followong events may interrupt the update process and MAY RESULT IN PERMANENT DAMAGE TO THE UNIT WHILE UPDATING
! Unplugging the power cord.
@ Power Outage.
# Dirt or Scratches on the disc.
$ Opening a disc tray during processing.
WARNING
3-2
Software Update
Samsung Electronics
Fig. 3-2
* If you don’t see the message above, try another disc. Generally, this is caused by disc quality and by disc creating problem.
4) Press the OK button on the remote control (Fig. 3-1).
Fig.3-3
5) It takes about 1~2 minutes to complete the update.
The message below will be displayed in the screen after update is completed and the tray will open automatically.
Fig. 3-4
6) After removing the update disc, turn off the unit with power button.
And there after turn on the unit with power button and then the will be closed.
The drive firmware is now completed.
Atfer checking old and new version, select “Yes” or “No”
with “ ” or “ ” on the remote control.
* The Version is indicated by “XX.X modelname”
You will see “LOAD” on FLT Display.
Fig. 3-5
1) Press OPEN/CLOSE to open the disc tray.
2) Insert the update CD-R disc with the software update, label
facing up.
3) Press OPEN/CLOSE to close the disc tray.
* It takes about 1~2 minites before the mesage below appears.
Fig. 3-1 Remote Control
Drive Update
Do you want to update drive-firmware?
Version : Xx.X.R155 -> XX.X.R155
Yes
No
Drive Update
Now, processing...
Please, do not turn off the power.
Drive Update
Drive Firmware is successfully
updated.
Samsung Electronics
4-1
4. Disassembly and Reassembly
4-1 Cabinet and PCB
4-1-1 Top Cabinet Removal
1) Remove 5 Screws Œ, ´, ˇ.
2) Lift up the Top Cabinet in direction of arrow.
Fig. 4-1 Top Cabinet Removal
Note : Reassembly in reverse order.
Π3 SCREWS
(3 x 10 B)
´ 1 SCREW
(3 x 10 B)
ˇ 1 SCREW
(3 x 10 B)
CABINET
4-2
Samsung Electronics
Disassembly and Reaasembly
Fig. 4-2 Ass’y Front-Cabinet Removal
4-1-2 Ass’y Front-Cabinet Removal
1) Release 6 Hooks Œ, ´, ˇ, ¨ and Ass’y Front-Cabinet ˆ.
´ 1 HOOK
Π1 HOOK
¨ 2 HOOKS
¨ 2 HOOKS
ˆ ASS’Y FRONT-CABINET
Disassembly and Reaasembly
Samsung Electronics
4-3
4-1-3 Ass’y Deck Removal
1) Remove 4 Screws Œ, ´ from the Ass’y Deck ˇ and lift it up.
Fig. 4-3 Ass’y Deck Removal
ˇ ASS’Y DECK
´ 2 SCREWS
(3 x 10 Y)
Π2 SCREWS
(3 x 8 W)
4-4
Samsung Electronics
Disassembly and Reaasembly
Fig. 4-4 HDMI PCB and Main PCB Removal
4-1-4 HDMI PCB and Main PCB Removal
1) Remove 2 Screws Œ, from the HDMI PCB and Main PCB ´,ˇ and lift it up.
ˇ MAIN PCB
Π2 SCREWS
(3 x 10 W)
´ HDMI PCB
Disassembly and Reaasembly
Samsung Electronics
4-5
4-1-5 Jack PCB Removal
1) Remove 7 Screws Œ, ´, ˇ ,¨from the Jack PCB ˆ and lift it up.
Fig. 4-5 Jack PCB Removal
ˆ JACK PCB
ˇ 4 SCREWS
(3 x 6 W)
¨ 1 SCREW
(3 x 6 W)
´ 1 SCREW
(3 x 8 W)
Π1 SCREW
(3 x 6 W)
4-6
Samsung Electronics
Disassembly and Reaasembly
4-2 PCB Location
Fig. 4-6 PCB Location
HDMI PCB
MAIN PCB
JACK PCB
Samsung Electronics 5-1
5. Trouble Shooting
NO Power Detected
(Stand by LED OFF)
PAFT1 is normal?
Is there
voltage at PQIZ1[Pin 5]?
(Over 10V)
PVDL1,PSDZ1,
PVZL1 SHORT and OPEN
Are normal?
Check feed back PQIZ1[PIN 3]
Is 5.8V
Change fuse
Change short circuited or
opened parts
Change PQIZ1 IC
No
No
No
Yes
Yes
Yes
Operation of PQIZ1 is
Normal?
Replace PQIZ1
No
Yes
Trouble Shooting
5-2 Samsung Electronics
Yes
There's no Digital Audio Out
Check Current Digital
Audio Setting is PCM.
AUDIO DATA (SJACK5)
Check the Cable
Check the A/V
Receiver can Decode Current
Bit-Steam
Set audio setting to
Bitstream in customer
menu.
No
No
Yes
Replace Main PCB
No
Yes
Replace AVJ5
No
Yes
ChecK Digital
Audio data at pin 2 of CON3
(MAIN PCB)
Check 5V SJACK5
Trouble Shooting
Samsung Electronics 5-3
Check Pin 35 in IC216
of input power(5V).
Check the connection between
Pin 8,10,12 in IC216 and Pin-Jack.
Yes
AV1,AV2,AV3 CVBS Video Input Error
Pin 8,10,12 In IC216
Has about p-p 1V level?
No
No
Yes
Pin 35 In IC216
Has about p-p 1V signal?
VIC1 of Main PCB Clock (Pin72)
VIC1 of Main PCB DATA (Pin75~84)
A
Trouble Shooting
5-4 Samsung Electronics
Check the RCA Cable
Check the connection between
VIC1(PIN5) and IC601(PIN89).
Check VIC1 peripheral circuit.
# IF Recorder is under PSO (progressive scan output) MODE, it does
not output the CVBS& S-Video signal.
No
Yes
Check the connection between
VIC1 and output jack.
CVBS(Color-bar) (Pin17 of IC216)
Check the connection between
10Pin in CN3 Of JACK PCB and VIC1
Check the connection between
VIC1[pin1] and Power line (VL6, PPIF1).
Check the DIC1 on MAIN PCB
No
Yes
Pin5 in VIC1 is
In high state?
Video signal of
About P-P1V appears at
Output Jack?
Yes
CVBS (Video) output error
Video signal of
about 1Vp-p appears at
pin 17 of IC216.
No
No
Yes
No
Yes
Analog signals
are Inputted normally
VIC1[pin4]
Power is
Normal(5v) at VIC1[pin1]?
A
Trouble Shooting
Samsung Electronics 5-5
Check the RCA cable
# Nomal level of IC216
: Pin21 is 1Vpk-pk
pin19 is 0.28V on color burst
# IF Recorder is under PSO (progressive scan output) MODE, it does
not output the CVBS& S-Video signal.
Check the connection between
IC216 and output jack.
Check the connection between
Pin10 and Pin8 in CN3 Of JACK PCB
and VIC1
Check the connection between
IC216 and Power line (VL6, PPIF1).
Check the DIC1 on MAIN PCB
No
Yes
Video signal of
About P-P1V appears at
Output Jack?
Yes
S-Video output error
Pin7 and
Pin9 in MCN2 of Jack PCB or
CN2 of Main PCB has *
normal level?
No
No
Yes
No
Yes
Analog signals
are Inputted normally IC216
(Pin”31”,”33”)?
Power is
Normal(5v) at IC216
(Pin”34”,”30”,”11”)?
Y(Color-bar) (Pin21)
C(Color-bar) (Pin19)
Trouble Shooting
5-6 Samsung Electronics
Check the RCA cable
Check the connection between
IC216 and output jack.
# Nomal level
: pin25 is 1Vpk-pk
pin 23,24 is + 0.35V
Check the connection between
Pin2/4/6 in CN3 Of JACK PCB
and IC216(pin27/28/29)
Check the connection between
IC216(pin30) and Power line (VL6, PPIF1).
Check the DIC1 on MAIN PCB
No
Yes
Video signal of
About 1V pk-pk appears at
Output Jack?
Yes
Component output error
Pin2/4/6 in CN3 of
Jack PCB or CN2 of Main PCB
has * normal level?
No
No
Yes
No
Yes
Analog signals
are Inputted normally
IC216(pin27/28/29)
Power is Normal(5v)
at IC216(pin30)?
Y(Color-bar) (IC216 pin25)
Pb(Color-bar) (IC216 pin23)
Pr(Color-bar) (IC216 pin24)
Trouble Shooting
Samsung Electronics 5-7
Replace MAIN PCB
No
Yes
Check SMPS
Replace Main PCB
Check the Low state pin6 of the
Front Micom FIC1(Jack PCB)
Check digital clock
and data pin102,103,104,105 of VIC1
(MAIN PCB)
Check the passive parts
arond Jack pin.
Yes
There is no Audio Output
Check audio signal
of 37,38 pin in IC216.
No
No
Yes
No
Yes
Check all the
9V pin36 of IC216
(Jack PCB)
Check the audio
signal pin106 pin110 of VIC1
(MAIN PCB)
AUDIO DATA (VIC1 pin105)
Trouble Shooting
5-8 Samsung Electronics
Reinsert FFC cable correctly
Change the Main board
Replace Jack Assy
Change the deck
Yes
Disc Ioading error
PZWZ1 pin1
and pin4 deck power OK?
(5v, 12v)
No
No
Yes
No
Yes
Is the 40pin FFC cable
(between DVD loader & Main Assy)
inserted correctly?
Is the wavefrom
of DIC3 pin26 normal?
(MAIN PCB)
DIC3-Pin26
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