Samsung BD-P1000XEU, BD-HD950XEU Schematic

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 120V AC outlet. (Do not use an iso­lation transformer 110-240V 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 110-240~50/60Hz

Power consumption 51Watts

General

Weight 4.2Kg

Dimensions 430(W)x79(H)x35(D) mm

Operating Temperature Range +5°C to 35°C

Operating Humidity Range 10 % to 75 %

BD Reading Speed : 4.917m/sec

DVD Reading Speed : 3.49 ~ 4.06 m/sec.

(Digital Versatile Disc) Approx. Play Time (Single Sided, Single Layer Disc) : 135 min.

Disc CD : 12cm Reading Speed : 4.8 ~ 5.6 m/sec.

(COMPACT DISC) Maximum Play Time : 74 min.

CD : 8cm Reading Speed : 4.8 ~ 5.6 m/sec.

(COMPACT DISC) Maximum Play Time : 20 min.

Composite Video 1 channel : 1.0 Vp-p (75 Ω load)

Y : 1.0 Vp-p (75 Ω load)

Component Video

Pr : 0.70 Vp-p (75 Ω load)

Pb : 0.70 Vp-p (75 Ω load)

Blu-ray Disc : 1080i, 720p, 576p/480p, 576i/480i DVD : 576p/576p/480p, 576i/480i

S-Video

Luminance Signal : 1.0 Vp-p (75 Ω load)

Chrominance Signal : 0.3 Vp-p (75 Ω load)

HDMI

576p/576p/576p/480p, 720p, 1080i. 1080p

PCM multichannel audio, bitstream audio, PCM audio

2 Channel L(1/L), R(2/R)

5.1 Channel F/L, F/R, R/L, R/R, C/T, S/W

Digital Audio Output Optical/Coaxial

*Frequency Response 48 kHz Sampling : 4 Hz to 22 kHz

96 kHz Sampling : 4 Hz to 44 kHz

*S/N Ratio 110 dB

*Dynamic Range 100 dB

*Total Harmonic Distortion 0.004%

2. Product Specification

2-1 Product Specification

Video

Output

Video/Audio

Audio

Output

* : Nominal specification

Product Specification

2-2 Samsung Electronics

2-2 Chassis Product Specification

General Features BD-P1000/XEU HD950/XEU

CVBS Output 1CH 1CH
S-Video Output 1CH 1CH
YPbPr Output 1CH 1CH
HDMI O O
Digital Audio Output(Optical/Coaxial) O/O O/O
A0nalog Audio Output (2ch/5.1ch) 1/1 1/1
Anynet X O
Video Decoder(Maker : DAC) ADV7322 ZR36778
Video DAC 14bit 10bit
Audio DAC 24bit 192kHz 24bit 192kHz
BD-ROM O X
BD_RE X X
DVD-RAM O X
DVD-RW O O
DVD-ROM O O
DVD-R O O
DVD+R X O
DVD+RW X O
CD-ROM O O
CD-R O O
CD-RW O O
BD-ROM O X
BD-RE X X
DVD-Video O O
DVD-Audio X O
DVD-VR O X
Not finalized DVD-V Mode X X
VCD 1.1/2.0 X O
SVCD/CVD X O
CD-DA O O
DTS CD O O
HDCD X X
SACD X O
SACD CD Layer O O
Picture CD O O
DiVX X X
Front Display VFD LCD
Screen capture X X
Closed Caption pass through from disc

O O

Main Menu (including Setup Menu) O O

Input / Ouput

Chassis

Audio/Video

Decoder

Loader

Miscellaneous

A/V Playable

Media

EZEZ VIEWVIEW

DVDVD -HD850-HD850

Product Specification

Samsung Electronics 2-3

2-3 Option Product Specification

Description Fig Description Parts No Remark

Remote

Control

Batteries for

Remote Control

AK59-000057C

4301-001035

Model Standard of

BD-P1000/XEU

Model Standard of

BD-P1000/XEU

S.N.A

Model Standard of

BD-P1000/XEU

Model Standard of

BD-P1000/XEU

S.N.A

Model Standard of

BD-P1000/XEU

AK68-01229A

AK68-01230A

AK68-01231A

MD39-00107A

User’s Manual

Quick Guide

Component Cable

Model Standard of

BD-P1000/XEU

MF39-00274A

Composite Audio

L/R Cable

Model Standard of

BD-P1000/XEU

_

Bundle Disc

Product Specification

2-4 Samsung Electronics

MEMO

Samsung Electronics

3-1

3. Software Update

3-1 Firmware Update

3-1-1 Main F/W Update Method (for Blu-ray Disc Logical Problem)

Fig. 3-1

1) Insert update CD and close the tray.

4) When Finished, tray opened automatically, then power goes

off.

2) Press Yes if the update CD you insert is a later one than

before.

3) Wait about 10 minutes.

Fig. 3-2

Fig. 3-3

Fig. 3-4

Verifying Main F/W

!

Main F/W Update

!

Do you want to update Main F/W?
Version:MMDD.xx -> MMDD.xx

Yes

No

!

Main F/W is successfully updated

Main F/W Update

!

Now, processing...
Please, do not turn off the power.

3-2

Software Update

Samsung Electronics

3-1-2 Sub F/W Update Method

(for DVD Logical Problem)

1) Insert update CD and close the tray.

4) When Finished, tray opened automatically, then power goes

off.

2) Press Yes if the update CD you insert is a later one than

before.

3) Wait about 2~3 minutes.

Fig. 3-5

Fig. 3-6

3-1-2 Loader F/W Update Method

(for Disc Physical Problem)

1) Insert update CD and close the tray.

2) Press Yes if the update CD you insert is later one than before.

3) Wait about 1~2 minutes.

Fig. 3-7

Fig. 3-8

4) When Finished, tray opened automatically, then power goes

off.

Fig. 3-9

Sub F/W Update

!

Do you want to update Sub F/W?
Version:MMDD.xx -> MMDD.xx

Yes

No

Loader F/W Update

!

Do you want to update Loader F/W?
Version:X.XX (before)

Yes

No

Sub F/W Update

!

Now, processing...
Please, do not turn off the power.

Loader F/W Update

!

Now, processing...
Please, do not turn off the power.

!

Loader F/W 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.

´ 1 SCREW

(3 x 10 Y)

Π3 SCREW

(3 x 10 Y)

ˇ 1 SCREW

(3 x 10 Y)

¨ TOP 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 7 Hooks Œ, ´, ˇ, ¨ and Ass’y Front-Cabinet ˆ.

Π1 HOOK

¨ 2 HOOK

ˇ 3 HOOK

´ 1 HOOK

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

Π2 SCREW

(3 x 10 Y)

´ 2 SCREW

(3 x 10 Y)

4-4

Samsung Electronics

Disassembly and Reaasembly

Fig. 4-4 SMPS PCB Removal

4-1-4 SMPS PCB Removal

1) Remove 6 Screws Œ, from the SMPS PCB ´ and lift it up.

Π6 SCREW

(3 x 8 Y)

´ SMPS PCB

Disassembly and Reaasembly

Samsung Electronics

4-5

4-1-5 Main PCB Removal

1) Remove 11 Screws Œ, ´ from the Main PCB ˇ and lift it up.

Fig. 4-5 Main PCB Removal

Π6 SCREW

(3 x 6 Y)

ˇ Mian PCB

´ 5 SCREW

(3 x 10 B)

4-6

Samsung Electronics

Disassembly and Reaasembly

4-1-6 Memory Card and FAN Removal

1) Remove 4 Screws Œ from the Memory Card ´ and lift it up.

Fig. 4-6 Memory Card and FAN Removal

´ Memory Card

Π2 SCREW

(3 x 6 Y)

ˇ 2 SCREW

(3 x 14 W)

¨ FAN

Disassembly and Reaasembly

Samsung Electronics

4-7

4-2 PCB Location

Fig. 4-7 PCB Location

MAIN PCB

SMPS PCB

4-8

Samsung Electronics

Disassembly and Reaasembly

MEMO

Samsung Electronics 5-1

5. Trouble Shooting

NO Power Detected

(Stand by LED OFF)

F01 is normal?

Yes

C10 voltage

is normal voltage?

Switching operation

of IC01,IC02 is normal?

Replace IC01, IC02

Yes

No

No

No

Yes

Change fuse

Change BD01

Check 2st voltage

Trouble Shooting

5-2 Samsung Electronics

There's no Digital Audio Out

Check Current Digital Audio

Setting is PCM.

Yes

Check the Audio Data at

AIC3 pin4 (BD) or
AIC3 pin13 (DVD)

Yes

ChecK Digital Audio data

at pin 7 of AIC3

(MAIN PCB)

Yes

No

No

No

Check the A/V Receiver

can Decode Current

Bit-Steam

Yes

Replace Main PCB

Replace the AIC3

No

Set to Bitstream

Check 5V at AIC2 pin14

Yes

Replace the Main PCB

No

AUDIO

DATA

Check the power cable

Trouble Shooting

Samsung Electronics 5-3

There is no Audio Output

Check he audio signal

at AIC 6,7,8

No

Check all the signal at

R518,516,514,512

No

Check the audio signal

at pin2,4,6,8, of AIC5

Yes

Check digital clock

at pin 12,14,16,18,of AIC4

Yes

Yes

No

No

Check the passive parts around
Audio Jack pin

Check the AIC1

Replace Main PCB

Replace MAIN PCB

Yes

Check the power cable

AUDIO

DATA

Trouble Shooting

5-4 Samsung Electronics

Disc Ioading error

Are Main and deck

power OK?

(5v, 12v)

Yes

Is the 40pin

FFC cable(between main & deck)

inserted correctly?

Yes

Is the wavefrom

of U10-pin24 normal?

(MAIN PCB)

Yes

No

No

No

U10-pin24

Check the power

Reinsert FFC cable correctly

Change the Main board

Change the deck

Trouble Shooting

Samsung Electronics 5-5

Remote control does not work

Remocon battery

OK?

Yes

Is the FFC cable(between

Front panel&Main) OK?

Yes

U16(Pin5)

Signal OK?

Yes

Check the Power of U16 (Pin51)

or change the Main PCB

No

No

No

Change the battery

Re-insert FFC cable correctly

Check the U16, R379 or change
the Front panel PCB

Trouble Shooting

5-6 Samsung Electronics

No Picture

Logo screen is OK ?

Yes

BD playback picture is OK ?

Yes

DVD playback picture is OK ?

Yes

Clock and data output from

U14 ? (R391, R37,R86)

No

No

No

No

NO LOGO

BD

DVD

U14, X1 check for soldering error

Yes

Change the Main PCB

Trouble Shooting

Samsung Electronics 5-7

NO LOGO Screen(HDMI)

Video selection set properly

accords with cable connection

and TV mode ?

Yes

Clock, data and

SYNC output from U1 ?

(EL1, VRN1~6,

VR30,31)

Yes

Clock, data and

SYNC from U601 ?

(R2956, FRN1~6,

R605,606)

Yes

pin2 of HD6 is High ?

(2.0~5.0V)

No

No

No

No

Check the Video select, cable
connection, TV input mode

U1 check for soldering error

Check U601 power input, X600
oscillation, Memory interface

Check HD6 power input and HDMI
cable connection

Yes

data output from HIC1 ?

(pin26,27,29,30,32,33,35,36)

Yes

Defective HDMI cable

No

Check the HIC1 power input and
peripheral devices

Trouble Shooting

5-8 Samsung Electronics

NO LOGO Screen

(Component 1080i, 720p, 575p/480p)

Video selection

accords with cable

connection and TV mode ?

Yes

Clock, data and
SYNC output from U1 ?
(EL1, VRN1~6, VR30,31)

Yes

SYNC output from U707 ?

(pin34,33)

Yes

Clock, data and

SYNC from U601 ?

(R2956, FRN1~6, R605,606)

No

No

No

No

Check the Video select, cable
connection, TV mode

U1 soldering error

Check U707 power, Clock (pin18) and
SYNC(pin8,9) input

Check U601 power input, X600
oscillation, Memory interface

Yes

Y,Pb,Pr signals

output from VIC4 ?

(pin39,38,37)

Yes

Y,Pb,Pr signals

output from VIC4 ?

(pin25,21,17)

Yes

Y,Pb,Pr signals are OK from

VIC4 to J5 ?

Yes

Component cable error

No

No

No

Check VIC4 power and Reset
(pin33; ‘High’) input

Check VIC4 power input

Check soldering of
peripheral devices

Trouble Shooting

Samsung Electronics 5-9

NO LOGO Screen(Component 480i)

Video selection

accords with cable connection

and TV mode ?

Yes

Clock, data and

SYNC output from U1 ?

(EL1, VRN1~6, VR30,31)

Yes

Y,Pb,Pr signal output from

VIC7 ? (pin39.38.37)

Yes

Y,Pb,Pr signal output from VIC3 ?

(pin25,21,17)

No

No

No

No

Check the Video select, cable
connection, TV mode

U1 soldering error

Check VIC7 power and
Reset(pin33; ‘High’) input

Check VIC3 power input

Yes

Y,Pb,Pr signal is OK from

VIC3 to J5 ?

Yes

Defective Component cable

Pr(Color-bar)

No

Pb(Color-bar)

Check soldering of peripheral
devices

Y(Color-bar)

Trouble Shooting

5-10 Samsung Electronics

NO LOGO Screen(Video, S-Video)

Video selection accords

with cable connection

and TV mode ?

Yes

Clock, data and

SYNC output from U1 ?

(EL1, VRN1~6, VR30,31)

Yes

Video and S-Video signal output

from VIC7 ? (pin44,43,42)

Yes

Video and S-Video output
from VIC2 ? (pin13,10,15)

No

No

No

No

Check the Video select, cable
connection, TV mode

U1 soldering error

Check VIC7 power and Reset
(pin33; ‘High’) input

Check VIC2 power input

Y,Pb,Pr signal is OK from

VIC2 to J4 ?

Video/S-Video cable error

Y(Color-bar)

Yes

Yes

No

C(Color-bar)

Check soldering of peripheral
devices

CVBS(Color-bar)