Sanyo LCD-23XL2 User manual

SERVICE MANUAL LCD Television
N2RV
FILE NO.
Model No. LCD-23XL2
(Argentina)
Give complete “SERVICE REF. NO.” for parts
order or servicing.It is shown on the rating label
at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television
transmission system and power source
differ from the design specifications. Refer
to the specification table.
Product Code:111374316
Original Version
Chassis Series: UE1-B
Service Ref. No. LCD-23XL2-00
Contents
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chassis Block Diagrams . . . . . . . . . . . . . . . . . . . . . . 4-5
CPU Port Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Option Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
On-screen Service Menu System . . . . . . . . . . . . . . 8-10
Service Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 11
Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mechanical Disassembly . . . . . . . . . . . . . . . . . . . 13-17
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 18-19
Chassis Electrical Parts List . . . . . . . . . . . . . . . . . 20-26
Printed Wiring Board . . . . . . . . . . . . . . . . . . . . . . 27-29

Safety Notice
-2-
Safety Precautions
The following precautions must be observed.
1: Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the
cabinet or on the chassis.
2: When replacing a chassis in the cabinet, always be certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers or shields, barriers, etc..
DO NOT OPERATE THIS TELEVISION WITHOUT THE PROTECTIVE SHIELD IN POSITION AND PROPERLY
SECURED.
3: Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts or
tools have been left inside.
Before returning any television to the customer, the service personnel must be sure that it is completely safe to
operate without danger of electrical shock.
Product Safety Notice
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by mark in the parts list and the schematic diagram designate components in which
safety can be of special significance. It is particularly recommended that only parts designated on the parts list
in this manual be used for component replacement designated by mark . No deviations from resistance
wattage or voltage ratings may be made for replacement items designated by mark .
[ Details of Dimensions ]
580 81 176
106
514
333 257
290
178
444
480
(Unit=mm)

Specifications
-3-
Power Source Monitor: DC24V
AC Adaptor: AC100-240 Volts, 50/60Hz, Output DC24V
Receiving System PAL-N/N/, PAL-M/M, NTSC-M/M
Channel Coverage ANTENNA mode
VHF: CH02 - CH13
UHF: CH14 - CH69
CATV mode
VHF band: CH01-CH13
MID band: CH14-CH22
SUPER band: CH23-CH36
HYPER band: CH37-CH64
ULTRA band: CH65-CH94 and CH100-CH125
Low MID band: CH95-CH99
Aerial Input Impedance 75 Ω
LCD Panel
Screen Size (Measured Diagonally):23 inch (58.4 cm)
Picture Resolution: WXGA 1280 (Horiz.) x 720 (Vert.) pixels
Viewing Angles: Horiz. 176˚, Vert. 176˚
Contrast Ratio: 800:1
Brightness: 550 cd/m2
Audio Output (RMS) 5W + 5W
Speaker 5 cm x 9 cm x 2 pcs.
AV Input Terminals
AV1 (Video): Composite Video Input x 1
AV1 (Audio): L/R Stereo Input x 1 set
AV2 or DVD (Video): Composite / Component-Y, CB, CRInput x 1 set
AV2 S-Video: SeparatedY/C DIN Jack Input x 1
AV2 (Audio): L/R Stereo Input x 1 set
AV3 (Video): Composite Video Input x 1
AV3 (Audio): L/R Stereo Input x 1 set
Output Terminal
Mini Stereo Headphone Jack x 1
Dimensions 580 (W) X 480 (H) X 257 (D) mm (Included Swivel Stand)
Weight Approx. 9.4 Kg (Included Swivel Stand)
Specifications subject to change without notice.

-4-
Chassis Block Diagrams (Video Signal Lines)
ASSY, PWB,
SIDE AV
K23 / K24
IF
A101A
TUNER
SAW
FILTER
X121A
IC201
IF/VIDEO/CHROMA/CPU/
SCALER/CAPTION/AUDIO CONTROL
IF
IC4001
FLASH MEMORY
IC2001
PICTURE IMPROVEMENT
Y/U/V
Y/U/V
F26/T25/T26 B14/A15/B15
6/8/9 16/17/19
Y23/Y24/Y25
RGB
N3/R3/U3
IC801
MEMORY
6
5
SCL
AC19 AD19
SDA
LCD PANEL
(WXGA)
K7H
LVDS0N LVDS0P LVDS1N LVDS1P LVDS2N LVDS2P LVDS_CLKN LVDS_CLKP LVDS3N LVDS3P
V
COMPISITE VIDEO IN (AV3)
B21
(AV3)
D2901
LED
A2901 RC RECEIVER
TOP CONTROL
KEYS
SW2951~ SW2957
RC-IN
ASSY,PWB, LED
ASSY, PWB, SIGNAL
KX
K29X
K29A
ASSY,PWB, KEY
KA
K29C
KC
AA25
AE20
STAND-BY & POWER INDICATOR
AE25
AE22
POWER KEY IN
KEY IN
COMPISITE VIDEO IN
B19
V23
V24
U23
D18
C18
S-VIDEO C-IN
S-TERMINAL
(AV2)
S-VIDEO Y-IN
COMPONENTY or COMPISITE VIDEO IN
COMPONENT CRIN
COMPONENT CBIN
AV1TERMINAL
(K1002)
AV2TERMINAL
(K1004/K1005)
CVBS/Y IN
Y IN
CBIN
CRIN

-5-
Chassis Block Diagrams (Audio Signal Lines)
ASSY, PWB,
SIDE-AV
(AV3)
K23 /K24
IF
A101
TUNER
SAW
FILTER
X121A
IF
IC801
MEMORY
6
5
SCL
AC19 AD19
SDA
R
A20
D1901
LED
A1901 RC RECEIVER
TOP CONTROL
KEYS
SW2951~ SW2957
RC-IN
ASSY,PWB, LED
ASSY, PWB, SIGNAL
KX
K29X
K29A
ASSY,PWB, KEY
KA
K29C
KC
AA25
AE20
STAND-BY & POWER INDICATOR
AE25
AE22
POWER KEY IN
KEY IN
IC001
AUDIO AMP.
C17 D17
AUDIO L
AUDIO R
42812
SP902
SP901
K001
HEADPHONE JACK
AUDIO R-OUT
AUDIO L-OUT
R-OUT
L-OUT
KF K29F
ASSY, PWB,
SIDE-AV
L
B20
EXT. AUDIO R-IN (AV3)
EXT. AUDIO L-IN (AV3)
R-IN
L-IN
IC201
IF/VIDEO/CHROMA/CPU/
SCALER/CAPTION/AUDIO CONTROL
F24
EXT. AUDIO IN-R (AV1)
A23
C21
EXT. AUDIO IN-L (AV1)
EXT. AUDIO IN-R (AV2)
EXT. AUDIO IN-L (AV2) F25
AV1TERMINAL
(K1002)
AV2TERMINAL
(K1005)

CPU Port Functions (IC201)
-6-
Pad No. Function Name Pad Name Description
163 (AE9) A16 INT_N/GPIO10/A16 Interrupt request output, general purpose I/O
273 (G3) SCL SCL/GPIO12 I2C clock HS-I2C 3.4MHz, general purpose I/O
189 (F2) SDA SDA/GPIO13
272 (H3) Text Reset GPIO9/ACLK General purpose I/O / Analog video clock I/O
349 (H4) LCD-BR GPIO4/PWM1/TCP_TDO General purpose I/O / Pulse width modul. output / Test control
93 (J1) NRESET/FPGA reset KBD0 Keyboard ADC input (Scaler) -Not used-
92 (K1) A17 A17 / GPIO11 Memory address bus, general purpose I/O
185 (K2) Scart-3 8-pin input A17 / GPIO11 Keyboard ADC input (Scaler) -Not used-
91 (L1) UART for test GPIO6 General purpose I/O
346 (L4) Text/RF sw PWM0 Pulse width modulated back light brightness control
81 (AA1) PC VSCL ASCL / GPIO14 DDC clock 400 KHz, general purpose I/O
174 (AA2) PC VSDA ASDA / GPIO15 DDC data 400 KHz, general purpose I/O
97 (E1) LCD-ON GPIO3 / TRST
102 (B3) PC-Det GPIO0 /T0/ TMS -Not used-
352 (E4) Scart-3 sw GPIO1 /T1/ TD1 -Not used-
276 (D3) Scart-3 sw GPIO2 /TCK -Not used-
98 (D1) UART for test RXD/GPIO5
166 (AE6) WE for Flash WR-N / GPI8
313 (AA23) NVM-WE P1.1 / T0 Port 1.1 or Counter Timer 0 input
232 (AA24) Line off input P1.1 / INT1 Port 1.0 or external interrupt 1 -Not used-
143 (AA25) RC input INT0 / P0.5 External interrupt 0 or port 0.5
320 (AC18) Status input P0.2 / I2SDO2 Port 0.2 or I2S digital output 2
319 (AC19) I2C SDA P1.7 / SDA Port 1.7 or I2C bus data line
241 (AD18) Power Error 2 P0.3 / I2SCLK Port 0.3 or I2S clock (Power Error=Low)
240 (AD19) I2C SCL P1.6 / SCL Port 1.6 or I2C clock line
239 (AD20) RGB selector P2.2 / PWM1 Port 2.2 or PWM1 output
238 (AD21) Scart-2 8-pin input P3.1 / ADC1 Port 3.2 or ADC1 input -Not used-
154 (AE18) Power Error 1 P0.4 / I2SWS Port 0.4 or I2S Word Select (Power Error=Low)
153 (AE19) Power-2 ON/OFF P1.3 /T1 LVDS on 20” model only (H=ON)
152 (AE20) Power LED P2.1 / PWM0 Port 2.1 or PWM0 output (H= LED ON)
151 (AE21) Scart-1 8-pin input P3.0 / ADC0 Port 3.0 or ADC0 input -Not used-
150 (AE22) Key input P3.3 / ADC3 Port 3.3 or ADC3 input
149 (AE23) L/L’/AV2 SW P2.5 / PWM4 Port 2.2 or PWM4 output -Not used-
148 (AE24) DM Power Error P1.4 / RX Port 1.4 or UART bus
147 (AE25) Power key input P1.5 / TX Port 1.5 or UART bus
59 (AF18) Power-3 ON/OFF P0.1 / I2SDO1 Panel Power ON 20” model only (H=ON)
58 (AF19) Power-1 ON/OFF P0.0 / I2SDI1/O 3.3V, 5V Panel Power ON (L=ON)
57 (AF20) (118-pin Reset) P2.0 / TPWM Port 2.0 or Tuning PWM output -Not used-
56 (AF21) 50/60 P2.3 / PWM2 Port 2.3 or PWM2 output (23” model only, 50=H, 60=L)
55 (AF22) AGC input for factory P3.2 / ADC2 Port 3.2 or ADC2 input
54 (AF23) Sound mute P2.4 / PWM3 Port 2.4 or PWM3 output
53 (AF24) Scart-1 SW P1.2 / INT2 Port 1.2 or external interrupt-2 -Not used-

Option Setting
-7-
After replacing Memory IC (IC801)
The memory IC (IC801), stores the option data of TV set and service adjustments data for each circuit, therefore, when
the memory IC is replaced, it should be programmed to the following settings and “ Service Adjustment” on page 11.
1) How to enter the Option Setting Mode
Press and hold the MUTE on the remote control and press the CHANNEL DOWN (P▼)button on the top
control panel of the TV. The option window will appear on the screen.
P
OPTION
PLUG & PLAY
BASS FEATURE
ON
OFF
OFF
BLUE BACK
AUTO VOLUME
OSD H-POS
BBE&BASS EXPANDER
6
ARG
ON
AV3 ON
COUNTRY
SURROUND
STAND BY
RESET START
Option Setting Mode
2) How to make the Option Setting
Select desired option item by pressing the CHANNEL UP or DOWN button.
To switch the option mode, use the VOLUME + or - button.
The data which is set in the option mode is stored into the memory IC automatically.
The following table shows the available option items and default setting mode.
Option Items Mode Default / Description
OSD H-POS 0 to 15 Default “ 6 ” / OSD horizontal position adjustment.
COUNTRY
ARG, BRA or Default “ARG”(Argentina) / Shipping country selection.
SOUTH AMERICA
PLUG & PLAY ON or OFF Default “ON” / Disable or enable Plug & Play function.
SURROUND ON or OFF Default “ON” / Disable or enable Surround function.
Incase of inactive, the Sound menu will have no “SURROUND” item.
BASS FEATURE
VIRTUAL SUB WOOFER , Default “BBE&BASS EXPANDER” / Bass feature selection. Incase of
BBE&BASS EXPANDER “OFF”, item of Bass feature in Sound menu will be “BASS EXPANDER”.
or OFF
AUTO VOLUME ON or OFF Default “OFF” / Disable or enable “Auto Volume Level” function.
BLUE BACK ON or OFF Default “ON” / Disable or enable AV blue back under the no signal.
AV3 ON or OFF Default “ON” / Disable or enable “AV3”.
RESET START STAND BY start or Default “STAND BY” / Selection of Stand-by or Last Power start.
LAST POWER start
3) Exit from the Option Mode
Press the MENU button or turn off the TV set by pressing the Power ON/OFF button.
The item not displayed exists when a triangular mark is
displayed. Press Por Pbutton to scroll the screen.

-8-
On-screen Service Menu System
General
This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the ser-
vice adjustments.
3) Exit from the Service Menu
Press the MENU button or turn off the TV set by pressing the Power ON/OFF button.
144 White Bal.
SACR
2) How to make the Adjustments:
Press the CHANNEL UP or DOWN button on the remote control hand set to select service menu item.
Use VVOLUME + or - button to adjust the data.The + or - key will increase or decrease the data sequentially.
On-screen Service Menu System
1) How to enter the Service Menu
Press and hold the SOUND MODE button of the remote control and press the CHANNEL DOWN (P▼)button on
the top control panel of the TV
Item No.
Adjustment Item
Adjustment Data
P
17
01110000 00000000
01110000 00101101
10000101 00101101
00011100 00101101
Example of the Service Mode Display
000 GTV 4. 0
UE1B 1. 08
01110010 00000000
01110001 01011101
10000101 00101101
00011110 00101101
Software Version Information
Read Status
Item No.
Section

-9-
On-Screen Service Menu System
On-screen Service Menu
Important Note: All data except in gray box area is fixed. Do not change for correct operating. Data in gray box
area is initial. Can be set according to adjustment information on page 11.
No. Title Explanation Initial Value
000 UE1B GTV software version information -
001 Init TV Initialize TV 0
002 ISP Mode Enter ISP mode 0
003 Sedna version Sedna version information 4
004 PWT Power time 0
005 DCXO DCXO scanning control center 48
006 DCXO Auto DCXO auto adjustment 0
007 WSS Zoom option 1
008 WPR White point Red 20
009 WPG White point Green 20
010 WPB White point Blue 20
011 BLOR Black level offset Red 20
012 BLOG Black level offset Green 20
013 WPR-SECAM SECAM offset for WPR 0
014 WPG-SECAM SECAM offset for WPG 0
015 WPB-SECAM SECAM offset for WPB 0
016 BLOR-SECAM SECAM offset for BLOR 0
017 BLOG-SECAM SECAM offset for BLOG 0
018 Reserved Not used -
019 Reserved Not used -
020 RGB Bright RGB brightness 29
021 CapBri MIN Caption brightness min. 6
022 CapBri MID Caption brightness mid. 16
023 CapBri MAX Caption brightness max. 31
024 BR RF PN Offset Brightness RF PAL/NTSC 245
025 BR AV Offset Brightness AV PAL/NTSC 245
026 BR DVD Offset Brightness DVD 243
027 Reserved Not used -
028 CN RF PN Offset Contrast RF PAL/NTSC 0
029 CN AV Offset Contrast AV PAL/NTSC 0
030 CN RGB Offset Contrast AV RGB 254
031 Reserved Not used -
032 SH RF PN Offset Sharpness RF PAL/NTSC 0
033 SH AV Offset Sharpness AV PAL/NTSC 0
034 SH RGB Offset Sharpness AV RGB 0
035 Reserved Not used -
036 CL RF P Offset Colour RF PAL 0
037 CL AV P Offset Colour AV PAL 0
038 CL N Offset Colour NTSC 0
039 Reserved Not used -
040 CL DVD Offset Colour DVD 8
041 PV-BR-DY Preset Movie Brightness 40
042 PV-CL-DY Preset Movie Colour 50
043 PV-CT-DY Preset Movie Contrast 63
044 PV-SH-DY Preset Movie Sharpness 32
045 PV-BR-ST Preset Sport Brightness 32
046 PV-CL-ST Preset Sport Colour 50
047 PV-CT-ST Preset Sport Contrast 45
048 PV-SH-ST Preset Sport Sharpness 32
049 PV-BR-EC Preset Weak Signal Brightness 22
050 PV-CL-EC Preset Weak Signal Colour 50
051 PV-CT-EC Preset Weak Signal Contrast 32
052 PV-SH-EC Preset Weak Signal Sharpness 32
053 CLO SECAM Center frequency of cloche filter 0
054 DTR SECAM Chroma trap mode 1
055 YSECAM Y-delay adjustment 2
056 YNTSC Y-delay adjustment 0
057 YPAL Y-delay adjustment 4
058 YAV Y-delay adjustment 4
059 ACL Automatic colour limiting 0
060 MUS NTSC matrix 1
061 PWLDAC Peak White limiting 8
062 CB CB default 1
063 CB RF-NT CB for RF NTSC 1
064 BPS Bypass of chroma base-band delay line 0
065 FCO Forced colour-on 0
066 PeakFreqPAL443 Peaking center frequency and delay 3
067 PeakFreqPALM Peaking center frequency and delay 3
068 PeakFreqPALN Peaking center frequency and delay 3
069 PeakFreqNTSC443 Peaking center frequency and delay 3
070 PeakFreqNTSCM Peaking center frequency and delay 3
071 PeakFreqSECAM Peaking center frequency and delay 3
072 PeakFreqAV Peaking center frequency and delay 3
073 UOC Tint Def Base-band tint control 32
074 UOC Tint NT Tint for NT 0
075 Blackstretch Black stretch 1
076 Bluestretch Blue stretch 0
077 Whitestretch Gamma control and white stretch setting 0
078 GAM Gamma control 0
079 PWL Peak White limiting 0
No. Title Explanation Initial Value
080 BSD Black stretch Depth 0
081 AAS Black stretch Area Selection 0
082 PeakRatioOvShot Ratio of positive and negative peak 0
083 RatioPreAftShot Ratio pre and after shoot 0
084 CRAO Coring on SCAVEM 0
085 DL Sets the Interlace 0
086 Tint NTSC Current baseband tint 31
087 OSO Switch-off in vertical overscan 0
088 FSL Forced slicing level for vertical sync. 0
089 HP2 Synchronization of OSD TEXT display 0
090 SoftClipLevel Soft clipping level 0
091 FO Phase 1 0
092 Picture booster Option of TDA9178 1
093 AMS Luminance amplitude input 1
094 LDH Luminance histogram 1
095 FHS Line frequency selection 0
096 WLB Window letterbox format 1
097 DEM Demodulation mode on/off 0
098 CD2-O Chroma delay 0
099 OSP Overrule smart peaking 0
100 WPO White point stretch off 0
101 DSK Dynamic skintone on/off 1
102 ASK Dynamic skintone angle 0
103 WSK Dynamic skintone width 0
104 SSK Dynamic skintone size 1
105 DGR Green enhancement on/off 1
106 GGR Green enhancement gain 0
107 WGR Green enhancement width 0
108 SGR Green enhancement size 1
109 DBL Blue stretch on/off 0
110 GBL Blue stretch gain 0
111 SBL Blue stretch size 0
112 BON Black offset on/off 0
113 BT5-0 Adaptive black stretch 0
114 NL5-0 Non linearity amplifier 0
115 VG5-0 Variable gamma 32
116 9178 CFS-RF Contour filter section for RF 1
117 9178 VDC-RF Video dependent coring on/off for RF 1
118 9178 CDS-RF Colour sharpness on/off for RF 0
119 9178 CTI-RF Colour transient improvement on/off for RF 1
120 9178 PK-RF Peaking amplitude for RF 35
121 9178 SP-RF Steepness correction for RF 32
122 9178 CR-RF Coring Level for RF 32
123 9178 LW-RF Line width for RF 32
124 UOC COR-RF Video dependent coring (peaking) for RF 3
125 UOC PeakFreq-RF Peaking control for RF 3
126 SCA Lit H Flt-RF Sharpness Horiz. Filtering for RF 30
127 SCA Lit V Flt-RF Sharpness Vert. Filtering for RF 27
128 9178 CFS-AV Contour filter section for AV 1
129 9178 VDC-AV Video dependent coring on/off for AV 1
130 9178 CDS-AV Colour sharpness on/off for AV 0
131 9178 CTI-AV Colour transient improvement on/off for AV 1
132 9178 PK-AV Peaking amplitude for AV 35
133 9178 SP-AV Steepness correction for AV 32
134 9178 CR-AV Coring Level for AV 20
135 9178 LW-AV Line width for AV 32
136 UOC COR-AV Video dependent coring (peaking) for AV 3
137 UOC PeakFreq-AV Peaking control for AV 3
138 SCA Lit H Flt-AV Sharpness Horiz. Filtering for AV 38
139 SCA Lit V Flt-AV Sharpness Vert. Filtering for AV 27
140 HPOS50 Horizontal position for 50Hz 425
141 VPOS50 Vertical position for 50Hz 14
142 HPOS60 Horizontal position for 60Hz 396
143 VPOS60 Vertical position for 60Hz 16
144 SACR ADC Clamp Red 17
145 SACG ADC Clamp Green 17
146 SACB ADC Clamp Blue 17
147 SAGR ADC Gain Red 31
148 SAGG ADC Gain Green 31
149 SAGB ADC Gain Blue 31
150 Reserved Not used -
151 Reserved Not used -
152 Reserved Not used -
153 Reserved Not used -
154 Reserved Not used -
155 OP AUDIO CONFIG Not used 2
156 OP DUB DBE DBE/DUB/BBE control for study 0
157 AVL-LEV AVL reference level 5
158 AVL-WGT AVL weighting filter 0
159 AVL-MOD AVL decay time 3

-10-
On-Screen Service Menu System
No. Title Explanation Initial Value
160 LOUD-NA Main loudness none attack volume level 3
161 LOUD-CH Main loudness filter characteristic 0
162 BBE-CONT BBE contour value 10
163 BBE-PROC BBE process value 10
164 OP CLIP Clip management 0
165 ADC-AV-L Level adjust ADC 16
166 DEC-LEV Level adjust DEC 16
167 MONO-LEV Level adjust MONO 10
168 NIC-LEV Level adjust NICAM 16
169 SAP-LEV Level adjust SAP 16
170 E2D Audio output signal on the AUDEEM pin. 0
171 FFI Value of the last set in video signal
process 0
172 MR VOL L Master volume Low 63
173 MR VOL H Master volume High 4
174 L HI CUT Equalizer MAIN channel band 5 (8000Hz) 26
175 ASD SC1 THR 16
176 AGN Gain FM demodulator 0
177 OVMADAPT FM over modulation adaptation 1
178 OVMTHR Over modulation level threshold relative
to nominal 3
179 CHSE PAL/NTSC ident sensitivity 3
180 NLEL NICAM lower error limit 100
181 NUEL NICAM upper error limit 200
182 DSG Gai audio in out 1
183 FMWS Window size for FM demodulator 1
184 CV2 CVBS2 input signal selection 0
185 PA-BA-MU 48
186 PA-TR-MU 45
187 PA-BA-TK 28
188 PA-TR-TK 40
189 PA-BA-NR 32
190 PA-TR-NR 32
191 BEEP-VOL Alarm beeper volume 25
192 BEEP-FRQ Alarm beeper frequency 4
193 AGC Speed IF AGC speed 1
194 AGC Take over AGC take over 23
195 OIF Offset IF demodulator 32
196 VA Video output signal amplitude 0
197 VAI System I output signal amplitude correction 0
198 SVO Function of IFVO/SVO/CVBS1 pin 0
199 GD Group delay on CVBS1 signal 1
200 BPB Bypass of sound bandpass filter
at mono mode 0
201 BPB2 Bypass of sound bandpass filter section 2 1
202 OSD-H-POS On-screen Display Horizontal position 6
203 CL Cathode drive level 0
204 PGR Preset Gain Red 45
205 PGG Preset Gain Green 45
206 PGB Preset Gain Blue 45
207 Back Light Back-light 63
208 BL PWMMin Back-light PWM Min. control 0
209 BL PWMMax Back-light PWM Max. control 255
210 BL PWMFreq Back-light PWM Frequency control 240
211 GAMMA Ganma 32
212 BRIFE Brightness control 52
213 SATBE Saturation control 23
214 CONBE 40
215 PANEL (Not used) 0
216 LPG RGB gain preset 1
217 EGL Enable gain loop in the CCC system 0
218 RBL RGB blanking 0
219 OffsetMid 16
220 OffsetMin 48
221 OffsetMax 41
222 Interval 2
223 Wait-OffMid 8
224 Wait-OffMin 8
225 Wait-Next 8
226 Wait-Step 4
227 Wait Time 30
228 Judge Width 1
229 Scan Time Auto Scan Time/Min. value=0 x 04 6
230 Phi1 Phase 1 time constant (Should be very slow.) 2
231 Reserved Not used -
232 Reserved Not used -
233 Reserved Not used -
234 Reserved Not used -
235 Reserved Not used -
236 Reserved Not used -
237 Reserved Not used -
238 Reserved Not used -
239 CC-VPos Closed Caption Vertical Position 0
240 CC-HPos Closed Caption Horizontal Position 14
241 HSyncDelay 4
242 POS change Post Video & Sound mute time POS
change to with ident channel 1
243 POS chg no sig Post Video & Sound mute time POS 1
change to with no ident channel
244 Zoom or Text Post Video & Sound mute time at zoom 96
mode change and text mode
245 NICPLIM DCXO scaling control limit 96
246 CC-Wait 0
247 CC-LINE 21

-11-
Service Adjustments
Important Notice:
Do not attempt to adjust service adjustments not listed below otherwise it may cause loss of performance and for
correct operation.
DCXO Adjustment
This adjustment is required when the crystal oscillator
(X201 or X4001) is replaced.
1. Input PAL-N color bar signal from the AV1 input terminal .
Set the brightness and contrast to normal.
2. Enter the service mode, and select item No.006 DCXO
Auto with ▲ or ▼ key.
3. Press VOLUME + key, and the adjustment will start,
then adjustment data will be changed automatically as
follows;
“0” --> “1” --> “0”
(Oscillation frequency adjustment will be completed
automatically.)
AGC Adjustment
1. Receive PAL-N color bar pattern.
(ANT Input Level: 62dBµV, 75 ohms terminated)
2. Connect a Digital Volt Meter to Tuner-AGC terminal and
the ground.
3. Enter the service mode, and select item No.194 AGC
Take over with ▲ or ▼ key.
4. Adjust voltage of Tuner-AGC to become 3.2V±0.3V DC
with VOLUME + or - key.
White Balance Adjustment
Note: This adjustment should be made 10 minutes after
the TV is turned on.
[ Setting ]
1. Connect a colour-bar generator to the external video
(composite) input terminal (AV1 or AV3 terminal), and
input a White Pattern (90%) signal.
2. Set the television to following conditions:
Screen Size: FULL
Picture Mode: DYNAMIC
[ White Balance Adjustment ]
1. Enter the Service Mode.
Adjustment Item:
No. 147 SAGR (ADC Gain Red)
No. 148 SAGG (ADC Gain Green)
No. 149 SAGB (ADC Gain Blue)
2. Decide a fixed item which is maximum value “31”.
(Example, let 31 of No. 147 SAGR be maximum
value), select item of other 2 colours (Example, No.
148 SAGG or No. 149 SAGB) with ▲ or ▼ key, and
adjust to produce a normal black and white picture in
highlight areas with VOLUME + or - key.
After adjustment, confirm white balance again by
normal picture.
Note: Adjusted data is less than the fixed data.
Black Balance Adjustment
Note: This adjustment should be made 10 minutes after
the TV is turned on.
[ Setting ]
1. Connect a colour-bar generator to the external video
(composite) input terminal (AV1 or AV3 terminal), and
input a dark gray pattern (20% white).
2. Set the television to following conditions:
Screen Size: FULL
Picture Mode: DYNAMIC
[ Black Balance Adjustment ]
1. Enter the Service Mode.
Adjustment Item:
No. 144 SACR (ADC Clamp Red)
No. 145 SACG (ADC Clamp Green)
No. 146 SACB (ADC Clamp Blue)
2. Decide the fixed item which is maximum value “17”.
(Example, let 17 of No. 144 SACR be maximum
value), select item of other 2 colours (Example, No.
145 SACG or No. 146 SACB) with ▲ or ▼ key, and
adjust to produce a normal black and white picture in
dark gray areas with VOLUME + or - key.
After adjustment, confirm white balance again by
normal picture.
Note: Adjusted data is less than the fixed data.

-12-
Protection Circuit
This TV set has a built-in power supply protection circuit.
It is provided to protect the TV set in case of a power supply circuit malfunctions.When something abnormality occurs
during TV reception, the TV set goes to the stand-by mode.
Releasing the protective circuit and restoring power supply
To release the protective circuit and restore power supply, disconnect the AC cord or AC adaptor for a short time.This
will work only if the power supply trouble was temporary.If there is permanent trouble such as a damaged circuit, power
cannot be restored and the circuit will have to be repaired.
When operating the Protection Circuit, the Stand-by and Power Indicator will blink.
The number of blinks will be determined by the type of failure detected as shown below.
1. One time blinks: Power failure of Video Decoder in IC 201.
2. Two times blinks: Scaler error of IC 201.
3. Three times blinks:Power failure of 2.5 V DecDig supply in IC 201.
(In case of 2.5V falls less than 2.0V for 1 second).
4. Four times blinks: Power failure of 5V supply in IC 201. (In case of 5V falls less than 4.0V for 1 second).
5. Five times blinks :Power fail-1 (Pad-154 AE18 of IC201).
Detected “5V_PANEL POWER”, “1V8_SW”, “5VCPU”, “5V_SW”, “3V3_SW” and “3V3STB”.
(Normal=High, Failure=Low)
6. Six times blinks: Power fail-2 (Pad-241 AD8 of IC201).
Detected “8V” (for IC2001) and “14V_AUDIO”. (Normal=High, Failure=Low)

-13-
Mechanical Disassembly
1. Stand Removal
1. Position TV face down on a padded or cushioned surface to protect the screen and finish.
2. Remove one screw and remove a stand cover.
3. Remove 3 screws to take the stand off.
CAUTION: Hold the stand firmly as you remove the last screw.
Stand Cover
Screw
Screws

-14-
Mechanical Disassembly
2. Cabinet Back Removal
1. Remove side cover.
2. Remove 13 screws and take the Cabinet Back off.
Note: Cabinet Back can be removed even if it does not remove a stand.
Remove side cover

-15-
Mechanical Disassembly
3. Chassis Removal
1. After removing Cabinet Back and Stand, remove Top Cover, Side Frame and Cabinet Bottom.
[ Location of Circuit Board and Electrical Parts ]
ASSY, PWB, KEY
ASSY, PWB,
SIDE-AV
Speaker Speaker
INVERTER
UNIT
Chassis Frame
ASSY, PWB, LED Cabinet Bottom
Top Cover
Side Frame
LCD Panel Module
ASSY, PWB, SIGNAL

-16-
Mechanical Disassembly
2. Remove 2 screws in the upper part of chassis frame, remove Shield Cover, disconnect each connectors and the
chassis can be taken out.
Chassis Frame
ASSY, PWB, KEY
ASSY, PWB, SIDE-AV
ASSY, PWB, LED
Remove 2 screws to take the chassis out
LCD Panel Module
ASSY, PWB, SIGNAL
For Gasket
The gasket is provided to prevent exposure of interference for other radio and television receptions.
The gasket should be replaced on previous positions after servicing.

-17-
Mechanical Disassembly
4. LCD Panel Removal
Remove 6 screws to take LCD Panel (Module) off.
Panel Holder
Screw
LCD Panel Module
Panel Holder
Screw
Screw Panel Holder
= Appendix =
How to Remove Flat Cable
There are following kinds of the connectors of flat cable. Be careful not to damage a connector in the case of removal of
a flat cable or attachment.
Type-A For removal of flat cable, lift up
the hook of both sides.
For insert and fixing, hold down
the hook after inserting the flat
cable.
Cable
Type-B For removal of flat cable, slide
the hook of both sides.
For insert and fixing, slide the
hook to previous position after
inserting the flat cable.
Cable
Type-C
Cable
For removal of flat cable, pull off only.
For fixing, insert into the socket.
Type-D
Cable
For removal of flat cable, hold
down the hook.
For insert and fixing, lift up the
hook after inserting the flat cable.

P
MENU
OK
-18-
7
Cabinet Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions.
1 610 324 8714 CABINET FRONT-N2RV
2 610 324 8998 BUTTON UNITED-N2RV
3 610 324 8721 COVER TOP-N2RV
4 610 324 1081 DEC IND-N2RC
5 610 325 6726 COVER USB SHEET-N2RV
6 610 324 8622 CABINET BACK-N2RV
7610 324 8943 CABINET BOTTOM-N2RV
8 610 321 1831 HANDLE-N2RJ
9 610 324 8844 LID SIDE-N2RV
10 610 324 9001 FRAME SIDE-N2RV
11 610 324 8813 COVER SHAFT TOP-N2RV
12 610 324 8882 COVER SHAFT-N2RV
13 610 322 3278 DEC STAND-N2RC
or 610 322 5289 DEC STAND-N2RY
14 610 321 8328 STAND TOP-N2RC
Key No. Part No. Description Key No. Part No. Description
9
1
6
2
12
13
5
8
14
4
3
10
11

-19-
Cabinet Parts List
20
16
17
18
19
15 610 317 2033 PAD RUBBER-N2RA
or 610 322 7832 PAD RUBBER-N2RY
16 645 072 9782 ASSY,REMOCON JXMTF
17 610 297 9879 RC-BATTERY LID-JXMTA
18 645 081 2705 CORD,POWER-2.0MK-ARG
19 645 075 9666 ADAPTOR,AC-DC
20 645 082 5941 PLUG,ADAPTOR ANT(PAL)
or 652 001 7528 PLUG,ADAPTOR ANT(PAL)
610 324 8004 INSTRUCTION MANUAL-N2RV
(Spanish)
Key No. Part No. Description Key No. Part No. Description
15

-20-
N2RV
OUT OF CIRCUIT BOARD
MISCELLANEOUS
EL901 645 075 4999 LCD(V230W1-L02 REVC1)
645 079 1192 LCD(V230W1-L02 REVC2)
K7H-PN 610 322 7009 CORD 20P 1.25MM(LVDS)
SP1101 652 001 4466 SPEAKER,8
652 001 4831 SPEAKER,8
SP1102 652 001 4466 SPEAKER,8
652 001 4831 SPEAKER,8
610 325 3190 ASSY,PWB,SIDE-AV, N2SV
1AA0B10N135BA
CAPACITOR
C2403 403 157 3611 CERAMIC 100P J 50V
C2404 403 157 3611 CERAMIC 100P J 50V
C2406 403 157 3611 CERAMIC 100P J 50V
C2407 403 157 3611 CERAMIC 100P J 50V
C2413 403 149 9218 CERAMIC 0.01U Z 50V
C2414 403 149 9218 CERAMIC 0.01U Z 50V
C2415 403 149 9218 CERAMIC 0.01U Z 50V
C2416 403 149 9218 CERAMIC 0.01U Z 50V
C2417 403 397 8612 NP-ELECT 10U M 16V
C2418 403 397 8612 NP-ELECT 10U M 16V
RESISTOR
R2401 401 105 0712 MT-GLAZE 100K JA 1/16W
R2402 401 105 7919 MT-GLAZE 0.000 ZA 1/16W
R2403 401 105 2815 MT-GLAZE 2.2K JA 1/16W
R2404 401 105 0712 MT-GLAZE 100K JA 1/16W
R2406 401 105 2815 MT-GLAZE 2.2K JA 1/16W
R2407 401 105 0712 MT-GLAZE 100K JA 1/16W
R2414 401 151 1817 MT-GLAZE 150 JA 1/2W
R2415 401 151 1817 MT-GLAZE 150 JA 1/2W
COIL
L2402 645 004 0344 INDUCTOR,10U K
L2403 645 004 0344 INDUCTOR,10U K
L2404 645 036 3894 INDUCTOR,220 OHM
L2405 645 036 3894 INDUCTOR,220 OHM
L2406 645 036 3894 INDUCTOR,220 OHM
MISCELLANEOUS
K2401 645 070 3973 JACK,RCA-3
K2402 645 006 4791 JACK,PHONE D3.6
610 325 3206 ASSY,PWB,KEY,N2SV
1AA0B10N135BB
RESISTOR
R2951 401 105 0415 MT-GLAZE 100 JA 1/16W
R2952 401 105 0514 MT-GLAZE 1K JA 1/16W
R2953 401 105 5915 MT-GLAZE 560 JA 1/16W
R2954 401 105 4512 MT-GLAZE 390 JA 1/16W
R2955 401 105 3218 MT-GLAZE 270 JA 1/16W
!
Chassis Electrical Parts List
Ref. No. Part No. Description Ref. No. Part No. Description
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by a mark in this parts list and the circuit diagram show components whose value have
special significance to product safety. It is particularly recommended that only parts specified on the following parts
list be used for components replacement pointed out by the mark.
!
Note: Parts order must contain Service Ref. No., Part No., and descriptions.
Read description in the Capacitor and Resistor as follows:
CAPACITOR
CERAMIC 100P K 50V
Rated Voltage
Tolerance Symbols:
Less than 10pF
A : Not specified B : ±0.1pF C : ±0.25pF
D : ±0.5pF F : ±1PF G : ±2pF
R : ±0.25-0pF S : ±0-0.25pF E : +0-1pF
More than 10pF
A : Not specified B : ±0.1% C : ±0.25%
D : ±0.5% F : ±1% G : ±2%
H : ±3% J : ±5% K : ±10%
L : ±15% M : ±20% N : ±30%
P : +100-0% Q : +30-10% T : +50-10%
U : +75-10% V : +20-10% W : +100-10%
X : +40-20% Y : +150-10% Z : +80-20%
Rated value: P=pico farad, U=micro farad
Material:
CERAMIC...........Ceramic
MT-PAPER.........Metallized Paper
POLYESTER......Polyester
MT-POLYEST.....Metallized Polyester
POLYPRO..........Polypropylene
MT-POLYPRO....Metallized Polypropylene
COMPO FILM.....Composite film
MT-COMPO........Metallized Composite
STYRENE...........Styrene
TA-SOLID...........Tantalum Solid
AL-SOLID...........Aluminium Solid
ELECT................Electrolytic
NP-ELECT..........Non-polarised Electrolytic
OS-SOLID.......... Aluminium Solid with Organic Semiconductive Electrolytic
DL-ELECT..........Double Layered Electrolytic
RESISTOR
CARBON 4.7K J A 1/4W Rated Wattage
Performance Symbols:
A: General B: Non flammable Z: Low noise
Other: Temperature coefficient
Tolerance Symbols:
A: ±0.05% B: ±0.1% C: ±0.25% D: ±0.5%
F: ±1% G: ±2% J: ±5% K: ±10%
M: ±20% P: +5-15%
Rated value, ohms:
K: 1,000, M: 1,000,000
Material:
CARBON........... Carbon
MT-FILM............ Metal Film
OXIDE-MT......... Oxide Metal Film
SOLID................ Composition
MT-GLAZE.........Metal Glaze
WIRE WOUND...Wire Wound
CERAMIC RES.. Ceramic
FUSIBLE RES....Fusible
NOTES: