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1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
PS-42C91H
Refer to the service manual in the GSPN (see the rear cover) for the more information.
Table of Contents
Chapter 1 Precaution
1-1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-3 Static Electricity Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-4 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Chapter 2 Product Specification
2-1 Product Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Specifications Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Chapter 3 Disassembly & Reassembly
3-1 Overhaul Disassembly & Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Chapter 4 Troubleshooting
4-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4-3 Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Chapter 5 Exploded View & Part List
5-1 PS42C91HX/XEH Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 PS42C91HX/XEH Service Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Chapter 6 Wiring Diagram
6-1 Overall Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Chapter 7 Schematic Diagram
7-1 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7-2 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Product Specification
2. Product Specification
2-1 Product Specification
Features
Block Specification Major IC Remark
RF Tuner TCPS3001PD32S(H) SEMCO
PDP Module Samsung SDI W2A 42"HD/50"HD SAMSUNG SDI
Power Input Voltage: AC 100~240V, 50/60Hz
Scaler
Video MT8202FG MTK
Video Decoder
Sound AMP NTP3000 Neo Fidelity
Sound
Audio CODEC MT8291(IC8002) MTK
Cabinet C9 Design
Specification
Model PS-42C91H PS-50C91H
Screen Size 42 Inches (16:9) 50 Inches (16:9)
Dimensions (WxHxD) 1055 x 775 x 341 mm (With stand) 1227.1 x 861.3 x 341 mm (With stand)
Weight 40.4 kg (With stand) 49.7 kg (With stand)
Voltage AC 100~240V, 50/60Hz
Colour System PAL, SECAM, NTSC4.43, NTSC 3.58
Sound System BG, DK, I, M
PC Resolution 1024 x 768 @ 60/75Hz 1360 x 768 @ 120 Hz
ANTENNA input AIR IN (75 unbalanced)
SCART1, SCART2
AV1, AV2
S-VIDEO
VIDEO input
COMPONENT1 - 480i/480p/720p/1080i
PC
HDMI1/2 (DVI Compatible HDMI) (Option)
SCART1, SCART2
AV1, AV2
S-VIDEO
AUDIO input
COMPONENT1 - 480i/480p/720p/1080i
PC
DVI
Audio Output AUDIO (L/R)
Speaker Output 10W + 10W
Samsung Electronics 2-1
Product Specification
2-2 Specifications Analysis
: application, X: non-application
Model PS-42C91H (Lily-42HD) PS-50C91H (Lily-50HD) PS-42P7HD (Alps-42HD)
Design
Display Type PDP TV PDP TV PDP TV
Built-In Tuner O O O
PC Resolution 1024 x 768 @60Hz 1360 x 768 @120Hz 1024 x 768 @75Hz
PDP Module W2A W2A V5.1
Basic
Screen Size 42 inches 50 inches 42 inches
Aspect Ratio 16 : 9 16 : 9 16 : 9
Dimensions (WxHxD) 1055 x 775 x 341 mm (With stand) 1227.1 x 861.3 x 341 mm (With stand) 1055 x 775 x 341 mm (With stand)
Weight 40.4 Kg (With stand) 49.7 Kg (With stand) 40.4 kg (With stand)
Brightness 1,100 Cd/m2 1,100 Cd/m2 1,100 Cd/m2
Picture Contrast Ratio 10000:1 10000:1 10000:1
Image Enhacer FBE2 FBE2 FBE
Equalizer O O O
Auto Volume O O O
Audio Surround Sound SRS TruSurround SRS TruSurround SRS TruSurround
Speaker Output 10 W + 10 W 10 W + 10 W 15 W + 15 W
Speaker Included Included Included
PIP O O O
Double Screen O O X
Caption O O X
Still Image O O O
Features
My Color Control O O X
Color Weakness X X X
Energy Saving O O O
Screen Burn Protection O O O
Antenna 1 Input 1 Input 1 Input
CVBS 1AV (Rear) 1AV (Rear) 1AV(Rear)
S-Video 1 Input 1 Input 1 Input
Component(Y/PB/PR) 1 Input 1 Input 1 Input
PC(D-SUB) 1 Input 1 Input 1 Input
Connections
DVI O O O
HDMI 2 Input 2 Input 2 Input
Scart 2 Input 2 Input 2 Input
Optical X X X
Coaxial X X X
For the power supply and power consumption, refer to the label attached to the product.
2-2 Samsung Electronics
Product Specification
2-3 Accessories
Accessories Item Item code Remark
Remote Control BN59-00609A
Batteries 4301-000103
Power Cord 3903-000145
Owner's Instructions BN68-01171P
Supplied Accessories
Registration Card AA68-03575A
Safety Guide Manual AA68-03242E
Samsung Service center
Cloth-Clean BN63-01798A
Ferrite Core for
3301-001110
Earphone/Power Cord
Ferrite Core for
3301-001305
S-VIDEO/Power Cord
Cover-Bottom BN63-03055A
Screws (2ea) 6003-001621
S-VIDEO Cable
BN39-00149A
1200mm
Accessories that can be purchased
HDMI Cable
BN39-00641A
3000mm
additionally
HDMI/DVI cable Electronics Store/
BN39-00643A
3000mm Internal shopping mall
Component Cables (RCA)
BN39-00279A
1500mm
Scart Cable None
Samsung Electronics 2-3
Product Specification
Accessories Item Item code Remark
Accessories that can be purchased
PC Cable
BN39-00115A
1830mm
additionally
PC Audio Cable Electronics Store/
BN39-00061B
2000mm Internal shopping mall
Antenna Cable
BN39-00333A
3000mm
2-4 Samsung Electronics
Wiring Diagram
6. Wiring Diagram
6-1 Overall Wiring
<42" Overall Wiring>
CN5401
Y-MAIN SCAN
CN810
4
CN5402
CN4002
CN5407 CN4701
CN809 5
CN5707
SMPS
CN808
CN5403
X-DRIVE
CN5408 6
Y-DRIVE CN800 CN801 CN807
CN5501 CN4001
CN5409 CN4004
11 7
CN2006 CN2001 CN2000
CN5412
CN5502 CN5701 CN2002 CN2003
?
LOGIC BOARD
2 CN2028 CN2004 1
CN5503 AC-INLET
E-BUFFER CN2509 CN2500 CN2600 CN2609 F-BUFFER
CN2510 CN2610
CN1002 CN1001 CN901
CN101 TEST
FUNCTION CN1 CN601 TEST
10 CN104_P MAIN BOARD
CN101
CN3 CN8001 CN301_OP
CN102
3 SIDE AV
POWER SW 8 9
SPEAKER
Samsung Electronics 6-1
Wiring Diagram
<50" Overall Wiring>
CN5401
Y-MAIN SCAN(HIGH)
4
CN810
CN5402
CN5707 CN4002
CN809 5 CN4701
CN5407
SMPS
CN808
CN5403 CN4001
X-DRIVE
CN5412
Y-DRIVE CN800
CN801 CN807
CN5501 CN4000
CN4004
CN5507 7
11 2 CN2001 CN2000
CN2006
CN2003
CN5502 CN5701 CN2002
LOGIC BOARD
CN2005 6
1
Y-MAIN SCAN(LOW) CN2004
CN5503 AC-INLET
CN2509 E-BUFFER CN2500 CN2600 F-BUFFER CN2609
CN2510 CN2610
CN1002 CN1001 CN901
CN101 TEST
FUNCTION CN1 CN601 TEST
10 CN104_P MAIN BOARD
CN101
CN3 CN8001 CN301_OP
CN102
3 SIDE AV
POWER SW 8 9
SPEAKER
6-2 Samsung Electronics
Wiring Diagram
The code number of cable(Lead-connector) can be changed, see "5. Exploded View & Part List."
Use LVDS 31P-30P POWER 24P SIDE
42" - BN39-00859A
Code BN39-00881A -
50" - BN39-00817A
Photo
Use Y Drive X Drive Address
Code - - -
Photo
Use Logic Front SPEAKER
Code - - -
Photo
Use FUNCTION AC_INPUT
42" - 2901-001378
Code -
50" - 2901-001340
Photo
Samsung Electronics 6-3
Wiring Diagram
CN1401(MAIN B'D) CN2010(LOGIC B'D) CN101(MAIN B'D) CN801(SMPS)
Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal
1 RxIN0- 16 NC 1 PS_ON 13 5V
2 RxIN0+ 17 GND 2 N/C (Auto_V) 14 5V
3 RxIN1- 18 WP 3 STBY 15 5V
4 RxIN1+ 19 SCL 4 GND_STBY 16 5V
5 RxIN2- 20 SDA 5 GND_18V AMP 17 GND_12V
6 RxIN2+ 21 LVDS Opt 6 GND_18V AMP 18 GND_12V
7 RxINCLK- 22 DCC Opt 7 18V AMP 19 12V
8 RxINCLK+ 23 GND 8 18V AMP 20 GND_12V
9 RxIN3- 24 GND 9 GND_5V 21 12V
10 RxIN3+ 25 GND 10 GND_5V 22 12V
11 NC 26 Vdd 11 GND_5V 23 N.C(FAN_ON)
12 NC 27 Vdd 12 GND_5V 24 N.C(FAN_DET)
13 NC 28 Vdd
14 NC 29 Vdd
15 NC 30 Vdd
CN1804(MAIN B'D) CN105(SIDE AV)
Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal
1 GND 12 TXC- 23 NC 34 VIDEO_SR_IN
2 TX2+ 13 GND 24 NC 35 VIDEO_SL_IN
3 TX2- 14 MICOM_CEC 25 GND 36 HP_IDENT
4 GND 15 GND 26 SVHS_IDENT 37 HP_OUT_R
5 TX1+ 16 TSCL 27 SVHS_Y 38 HP_OUT_L
6 TX1- 17 TSDA 28 GND 39 USB_VCC
7 GND 18 LSCL 29 SVHS_C 40 B1.8V
8 TX0+ 19 HDMI3_5V 30 GND 41 B3.3V
9 TX0- 20 HPD_SIL9185 31 VIDEO_IDENT
10 GND 21 DDC_WP 32 VIDEO_CVBS
11 TXC+ 22 GND 33 GND
6-4 Samsung Electronics
Wiring Diagram
CN805(SMPS) CN804(SMPS) CN806/CN807(SMPS) CN803(SMPS) CN1701(MAIN B'D)
CN5015(Y B'D) CN4000(X B'D) CN2501(E-BUFFER) CN2036(LOGIC B'D) POWER&IR
Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal
1 Vg 1 Vg 1 Va 1 STBY 1 IR
2 GND 2 GND 2 GND 2 VS_ON 2 GND
3 GND 3 GND 3 5.3V 3 N/C 3 A5V_1
4 GND 4 Vs 4 PS_ON 4 LED_STB
5 Vs 5 Vs 5 RTN 5 BUZZER
6 Vs 6 5.3V 6 KEY_INPUT1
7 RTN 7 KEY_INPUT2
8 RTN 8 GND
9 5.3V 9 B5V
10 5.3V 10 LED_CTRL
CN1201(MAIN B'D) CN1702(MAIN B'D) CN800(SMPS)
SPEAKER FUNCTION AC INLET
Pin No. Signal Pin No. Signal Pin No. Signal
1 R+_OUT 1 KEY_INPUT1 1 AC Neutral
2 R-_OUT 2 KEY_INPUT2 2 N/C
3 L+_OUT 3 GND 3 AC Live
4 L-_OUT
Samsung Electronics 6-5
Wiring Diagram
6-1-1 Connector role
42" Loc. No. 50" Loc. No. Description
CN5401 CN5401 Module and Y-Main Scan Connect
CN5402 CN5402 Module and Y-Main Scan Connect
CN5403 CN5403 Module and Y-Main Scan Connect
- CN5412 Y-Main Scan(High) and Y-Main Scan(Low) Connect
CN5501 CN5501 Module and Y-Main Scan Connect
CN5502 CN5502 Module and Y-Main Scan Connect
CN5503 CN5503 Module and Y-Main Scan Connect
CN5407 CN5407 Y-Drive and Y-Main Scan Connect
CN5408 CN5408 Y-Drive and Y-Main Scan Connect
CN5409 CN5409 Y-Drive and Y-Main Scan Connect
CN5412 CN5412 Y-Drive and Y-Main Scan Connect
CN5707 CN5707 Y-Drive and SMPS Connect
CN5701 CN5701 Y-Drive and Logic Board Connect
CN810 CN810 Y-Drive and SMPS Connect
CN809 CN809 X-Drive and SMPS Connect
CN808 CN808 SMPS and F-Buffer Connect
CN807 CN807 SMPS and Logic Board Connect
CN801 CN801 SMPS and Main Board Connect
CN800 CN800 SMPS and AC-Inlet Connect
CN4701 CN4701 SMPS and X-Drive Connect
CN4004 CN4004 Logic Board and X-Drive Connect
CN4002 CN4002 Module and X-Drive Connect
CN4001 CN4001 Module and X-Drive Connect
- CN4000 Module and X-Drive Connect
CN2000 CN2000 SMPS and Logic Board Connect
CN2001 CN2001 Main Board and Logic Board Connect
CN2002 CN2002 Y-Drive and Logic Board Connect
CN2004 CN2004 Logic Board and F-Buffer Connect
CN2028 CN2028 Logic Board and E-Buffer Connect
CN2500 CN2500 Logic Board and E-Buffer Connect
CN2510 CN2510 E-Buffer and F-Buffer Connect
CN2610 CN2610 E-Buffer and F-Buffer Connect
CN2600 CN2600 Logic Board and F-Buffer Connect
CN2609 CN2609 SMPS and F-Buffer Connect
CN1101 CN1101 SMPS and Main Board Connect
CN2202 CN2202 Main Board and Logic Board Connect
CN1605 CN1605 Function Assy and Main Board Connect
CN1404 CN1404 Side AV Assy and Main Board Connect
6-6 Samsung Electronics
Wiring Diagram
42" Loc. No. 50" Loc. No. Description
CN1606 CN1606 Power SW Assy and Main Board Connect
CN1203 CN1203 Speaker and Main Board Connect
CN101 CN101 Side AV Assy and Main Board Connect
CN1 CN1 Function Assy and Main Board Connect
CN3 CN3 Power SW Assy and Main Board Connect
Samsung Electronics 6-7
MEMO
6-8 Samsung Electronics
Schematic Diagram
7. Schematic Diagram
7-1 Circuit Description
Logic Board Y Main Board X Main Board
Display Row PDP Panel
DRAM Data Driver 42" - 1024x768 Pixels
Input 1024x768x3 Cells (R,G,B) X-Pulse
Data 50" - 1360x768 Pixels
Data Display Generator
Controller Driver 1360x768x3 Cells (R,G,B)
Processor Timing Y-Pulse
Timing
Controller Generator
Scan
Timing
Address Buffer
SMPS Board
LVDS
Main SMPS
Main Board
LVDS Image Audio
Deinterlacer
Trans Enhancer Processor
Image CPU Video Speaker
Decoder Decoder Out
AC Power
Scaler RF
Tuner Source
Splitter
TMDS A/D Video
Converter S/W Micom
Recever
SMPS Board
The SMPS used for the PDP has been designed to be efficient, compact and lightweight. For VS and VA outputs, a LLC converter
has been used. For the other outputs, a Flyback converter has been used.
LOGIC Board
The logic circuit consists of a Logic Main Board and an Address Buffer Board. The Logic Main Board decodes the video signal
encoded by the Video Board, outputs the ADDRESS data signal for each pattern and generates X and Y drive signals. The
Address Buffer Board buffers and transfers the ADDRESS data output signal using TCP IC.
- LVDS with built-in video signal processing (W/L, error diffusion, APC, FCR, etc.) applied and 1 ASIC chip.
- Outputs the address Drive IC control and data signals to the Buffer Board.
- Outputs the control signal for the X and Y Drive Boards.
- Monitors major drive voltages (Micom Circuit Block); detects if a surge voltage has been applied and protects the Drive Circuit.
- Temperature Adaptive Operating Mode (Low Temperature/Room Temperature/High Temperature); Discharge optimization for
each temperature level.
X-MAIN Board
Connects to the X terminal block, 1) provides maintaining voltage waveform (including ERC), and 2) maintains the Ve bias in the
Scan section.
Y-MAIN Board
Connects to the Y terminal block, 1) provides maintaining voltage waveform (including ERC), 2) provides Y Rising, Falling Ramp
waveforms, and 3) maintains the Vscan bias.
Address Buffer Board
It delivers the data signal and control signal to the TCP.
Samsung Electronics 7-1
MEMO
7-2 Samsung Electronics
Schematic Diagram
7-2 Schematic Diagram
7-2-1 POWER_ETC
This Document can not be used without Samsung's authorization.
Function
Power B12V B9V
Video IC101
BA178M09FP TP101
POWER
1 3 1
IN OUT
Audio G ND
2
C105
100uF
16V
C104 C101 C102 C103
100uF 100nF 10nF 100nF
16V PGND VCC_PANEL XREF
A5V_1 B5V_VCCA BD111
CIC21J601NE XREF
IR
IC102_CPT IC103 KEY_INPUT1
XREF
G78D12AT45U TP119 FDS9933A A5V A5V_1 KEY_INPUT2
1
IN OUT
3 1 1 8 A5V
2 7 Q101_DE
D109 KSC1623-Y TP126
GND 3 6 PMLL4148
C109 R157
C107_CPT 4 5 1
C
E
2 0ohm 1.5Kohm
22uF 22uF C106
16V
B
16V 100nF C110 C114
R101_DE
MMBD4148SE
MMBD4148SE
MMBD4148SE
R102 1uF
2
1
2
1
2
1
100nF
TP133 100Kohm 10V C 111
3
C112
D101
D102