There may be multiple versions of this TV model.
The TV version is identified by the letters next to
the model number on the TV's Rating and Model
No. labels. (See illustration).
Use the service manual that matches the version
of the TV.
Speaker(2.54 cm × 6.86 cm) × 2
Antenna TerminalF-type connector, 75Ω unbalanced, coaxial × 1 (VHF/UHF, ATSC / DIGITAL CABLE
Digital InputHDMI 2-row 19pin connector × 2
Component InputRCA pin jack × 3
Video Input1 V (p-p), Positive (Negative sync.), 75 Ω, RCA pin jack × 1
Audio Input500 mV (rms), High impedance, RCA pin jack × 4
PC InputD-sub 15 pin × 1
PC/DVI AUDIO Input3.5 mm stereo mini jack × 1
Digital Audio Coaxial Output0.5 V (p-p) 75Ω terminated, coaxial × 1
Headphone3.5 mm stereo mini jack × 1
Remote Control UnitRM-C1220 (AA/R6 battery × 2)
Design & specifications are subject to change without notice.
(Digital-input terminal is not compatible with picture signals of personal computer)
Supported format (Video): 1080p / 1080i / 720p / 480p / 480i
Supported format (Audio): 2ch L-PCM, 32 / 44.1 / 48 KHz, 16 / 20 / 24 bit
(1) The design of this product contains special hardware,
many circuits and components specially for safety
purposes. For continued protection, no changes should be
made to the original design unless authorized in writing by
the manufacturer. Replacement parts must be identical to
those used in the original circuits. Service should be
performed by qualified personnel only.
(2) Alterations of the design or circuitry of the products should
not be made. Any design alterations or additions will void
the manufacturer's warranty and will further relieve the
manufacturer of responsibility for personal injury or
property damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These
characteristics are often not evident from visual inspection
nor can the protection afforded by them necessarily be
obtained by using replacement components rated for
higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in
the parts list of Service manual. Electrical components
having such features are identified by shading on the
schematics and by ( ) on the parts list in Service
manual. The use of a substitute replacement which does
not have the same safety characteristics as the
recommended replacement part shown in the parts list of
Service manual may cause shock, fire, or other hazards.
(4) Don't short between the LIVE side ground and
ISOLATED (NEUTRAL) side ground or EARTH side
ground when repairing.
Some model's power circuit is partly different in the GND.
The difference of the GND is shown by the LIVE: ( ) side
GND, the ISOLATED (NEUTRAL): ( ) side GND and
EARTH: ( ) side GND.
Don't short between the LIVE side GND and ISOLATED
(NEUTRAL) side GND or EARTH side GND and never
measure the LIVE side GND and ISOLATED (NEUTRAL)
side GND or EARTH side GND at the same time with a
measuring apparatus (oscilloscope etc.). If above note will
not be kept, a fuse or any parts will be broken.
(5) When service is required, observe the original lead dress.
Extra precaution should be given to assure correct lead
dress in the high voltage circuit area. Where a short circuit
has occurred, those components that indicate evidence of
overheating should be replaced. Always use the
manufacturer's replacement components.
(6) Isolation Check (Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an
isolation check on the exposed metal parts of the cabinet
(antenna terminals, video/audio input and output terminals,
Control knobs, metal cabinet, screw heads, earphone jack,
control shafts, etc.) to be sure the product is safe to operate
without danger of electrical shock.
a) Dielectric Strength Test
The isolation between the AC primary circuit and all metal
parts exposed to the user, particularly any exposed metal
part having a return path to the chassis should withstand a
voltage of 3000V AC (r.m.s.) for a period of one second. (.
. . . Withstand a voltage of 1100V AC (r.m.s.) to an
appliance rated up to 120V, and 3000V AC (r.m.s.) to an
appliance rated 200V or more, for a period of one second.)
This method of test requires a test equipment not generally
found in the service trade.
b) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use
a line isolation transformer during this check.). Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal part of the cabinet, particularly
any exposed metal part having a return path to the chassis,
to a known good earth ground (water pipe, etc.). Any
leakage current must not exceed 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).
Alternate Check Method
Plug the AC line cord directly into the AC outlet (do not
use a line isolation transformer during this check.). Use
an AC voltmeter having 1000Ω per volt or more
sensitivity in the following manner. Connect a 1500Ω
10W resistor paralleled by a 0.15µF AC-type capacitor
between an exposed metal part and a known good earth
ground (water pipe, etc.). Measure the AC voltage
across the resistor with the AC voltmeter. Move the
resistor connection to each exposed metal part,
particularly any exposed metal part having a return path
to the chassis, and measure the AC voltage across the
resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Any voltage measured must
not exceed 0.75V AC (r.m.s.). This corresponds to
0.7mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.35V
AC (r.m.s.). This corresponds to 0.3mA AC (r.m.s.).
AC VOLTMETER
(HAVING 1000 /V,
OR MORE SENSITIVITY)
0.15 F AC-TYPE
GOOD EARTH GROUND
1500 10W
PLACE THIS PROBE
ON EACH EXPOSED
ME TAL PAR T
(No.YA791<Rev.002>)1-3
Page 4
1.2ABOUT LEAD FREE SOLDER (PbF)
1.2.1 Distinction of PbF PWB:
PWBs (manufactured) using lead free solder will have a PbF
printing on the PWB. (Please refer to figures.)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1TECHNICAL INFORMATION
2.1.1 MAIN CPU PIN FUNCTION [IC2801
No. Ball NO.PIN NAMEI/ODESCRIPTION
1 T20RESET_NI Reset in
2 T22XIN25I 25MHz XIN
3 T21XOUT25O 25MHz XOUT
4 H2USB_P--- USB P
5 H1USB-N--- USB N
6 H3GPANAIO--- Open (Do not connect any signal).
7 J3RREFEXT--- External resistor
8L1BCKODIIS out
9 M1LRCKOD IIS out
10 M2ADATAO0D IIS out#0
11 M3ADATAO1D IIS out#1
12 L3ACLKD Audio master clock
13 L2SPDIFOD SPDIF out
14 AB22SCISCK0D Multi function timer
15 AB21SCIRXD0D Multi function timer
16 W18SCITXD0D Multi function timer
17 Y10SCLK0D GPIO
18 AB10STXD0D GPIO
19 AA10SRXD0D GPIO
20 AA19SMCLKD GPIO
21 AB19SMDATAD GPIO
22 AA18SMRSTD GPIO
23 Y19TU_I2C_SCLD Serial interface
24 AA20SCITXD1D Serial interface
25 AA20SCIRXD1D Serial interface
26 V19SFCKD Serial flash clock
27 Y21SFTXD Serial flash transmit
28 AA22SFRXD Serial flash Receive
29 AB18SFHO_ND GPIO
30 AA21SFWP_ND Serial flash write protect
: MAIN PWB]
1.2.2 Caution:
• Pb free solder has a higher melting point than standard solder;
Typically the melting point is 86°F - 104°F(30°C - 40°C) higher.
Please use a soldering iron with temperature control and ad-
just it to 650°F ± 20oF (350°C ± 10°C).
In case of using high temperature soldering iron, please be
careful not to heat too long.
• Pb free solder will tend to splash when heated too high (about
1100°F/ 600°C).
• All products with the printed circuit board with PbF printing
must be serviced with lead free solder.
When soldering or unsoldering, completely remove all of the
solder from the pins or solder area, and be sure to heat the soldering points with the lead free solder until it melts sufficiently.
1.2.3 Recommendations
Recommended lead free solder composition is Sn-3.0Ag-0.5Cu.
No. Ball NO.PIN NAMEI/ODESCRIPTION
31 Y20SFCS_ND Serial Flash Chip select
32 K3SICL0D Tuner serial interface (clock).
33 K2SIDA0D Tuner serial interface (data).
34 Y18SICL1D Legacy serial interface (clock).
35 W19SIDA1D Legacy serial interface (data).
36 J1IFAGCD Demodulator IFAGC
37 L4RFAGCD GPIO
38 K1SANTD GPIO
39 W17QBLCAD PWM output
40 Y17QBLCBD PWM output
41 R20UARTRXD0D UART
42 R19UARTTXD0D UART
43 U22M32TRST_NI GPIO (Do not drive high during the
system reset)
44 V22M32TCKI GPIO
45 U20M32TMSI GPIO
46 U21M32TDII GPIO
47 T19M32TDOO GPIO
48 P22ASEBRKAK_NO E10A interface
49 R21ASEMD0I E10A interface
50 P19TRST_NI JTAG Interface
51 P20TCKI JTAG Interface
52 N22TMSI JTAG Interface
53 P21TDII JTAG Interface
54 M22TDOO JTAG Interface
55 W20GPIO0D GPIO
56 Y22GPIO1D GPIO
57 U19GPIO2D GPIO
58 V20GPIO3D GPIO
59 W21GPIO4D VBUS control
60 W22GPIO5D VBUS status input
1-4 (No.YA791<Rev.002>)
Page 5
No. Ball NO.PIN NAMEI/ODESCRIPTION
61 V21GPIO6D GPIO
62 M21GPY05D INT
63 M19GPY06D INT
64 N21GPY07D INT
65 L21GPY08D INT
66 L19GPY09D Multi function timer
67 L22GPY10D GPIO
68 K20GPY11D GPIO
69 K22GPY12D Multi function timer
70 K21GPY13D Multi function timer
71 L20GPY14D Multi function timer
72 K19GPY15D Multi function timer
73 J20GPY16D GPIO
74 J19GPY17D GPIO
75 J22GPY18D GPIO
76 P18MODE0I Connect to VSS.
77 AB8SDA12O DDR2 Interface
78 AB5SDA11O DDR2 Interface
79 AB6SDA10O DDR2 Interface
80 AA7SDA9O DDR2 Interface
81 AA5SDA8O DDR2 Interface
82 AA8SDA7O DDR2 Interface
83 AB4SDA6O DDR2 Interface
84 AA6SDA5O DDR2 Interface
85 AA4SDA4O DDR2 Interface
86 AB7SDA3O DDR2 Interface
87 W5SDA2O DDR2 Interface
88 W7SDA1O DDR2 Interface
89 AB3SDA0O DDR2 Interface
90 Y8SDBA2O DDR2 Interface
91 Y6SDBA1O DDR2 Interface
92 W9SDBA0O DDR2 Interface
93 R5SDVREF0P DDR2 Interface
94 V7SDVREF1P DDR2 Interface
95 AA2SDODTO DDR2 Interface
96 Y2SDCLKO DDR2 Interface
97 AA1SDCLK_NO DDR2 Interface
98 W8SDCKEO DDR2 Interface
99 AB2SDRASO DDR2 Interface
100 AA3SDCASO DDR2 Interface
101 W6SDWEO DDR2 Interface
102 Y4SDCSO DDR2 Interface
103 N3SDDM1O DDR2 Interface
104 P2SDDQ15I/O DDR2 Interface
105 N4SDDQ14I/O DDR2 Interface
106 T2SDDQ13I/O DDR2 Interface
107 R4SDDQ12I/O DDR2 Interface
108 P4SDDQ11I/O DDR2 Interface
109 R2SDDQ10I/O DDR2 Interface
110 R3SDDQ9I/O DDR2 Interface
111 R1SDDQ8I/O DDR2 Interface
112 U3SDDM0I/O DDR2 Interface
113 N2SDDQS1I/O DDR2 Interface
No. Ball NO.PIN NAMEI/ODESCRIPTION
114 P1SDDQS1_NI/O DDR2 Interface
115 V1SDDQ7I/O DDR2 Interface
116 T4SDDQ6I/O DDR2 Interface
117 W2SDDQ5I/O DDR2 Interface
118 V4SDDQ4I/O DDR2 Interface
119 W3SDDQ3I/O DDR2 Interface
120 W1SDDQ2I/O DDR2 Interface
121 U4SDDQ1I/O DDR2 Interface
122 V2SDDQ0I/O DDR2 Interface
123 U2SDDQS0I/O DDR2 Interface
124 U1SDDQS0_NI/O DDR2 Interface
125 AA9DD_CLI/O External resistor.
126 AA12LV0CKOPO LVDS clock out+ #0
127 AB12LV0CKOMO LVDS clock out- #0
128 AA11LV0OUT4PO LVDS data out 4+ #0
129 W11LV0OUT3PO LVDS data out 3+ #0
130 W12LV0OUT2PO LVDS data out 2+ #0
131 W13LV0OUT1PO LVDS data out 1+ #0
132 AA13LV0OUT0PO LVDS data out 0+ #0
133 AB11LV0OUT4MO LVDS data out 4- #0
134 Y11LV0OUT3MO LVDS data out 3- #0
135 Y12LV0OUT2MO LVDS data out 2- #0
136 Y13LV0OUT1MO LVDS data out 1- #0
137 AB13LV0OUT0MO LVDS data out 0- #0
138 AA15LV1CKOPO LVDS clock out+ #1
139 AB15LV1CKOMO LVDS clock out- #1
140 AA14LV1OUT4PO LVDS data out 4+ #1
141 W15LV1OUT3PO LVDS data out 3+ #1
142 AA16LV1OUT2PO LVDS data out 2+ #1
143 W16LV1OUT1PO LVDS data out 1+ #1
144 AA17LV1OUT0PO LVDS data out 0+ #1
145 AB14LV1OUT4MO LVDS data out 4- #1
146 Y15LV1OUT3MO LVDS data out 3- #1
147 AB16LV1OUT2MO LVDS data out 2- #1
148 Y16LV1OUT1MO LVDS data out 1- #1
149 AB17LV1OUT0MO LVDS data out 0- #1
150 W14REFRP External resistor.
151 H19MADIN0D Analog input
152 G21MADIN1D Analog input
153 G20MADIN2D Analog input
154 H21MADIN3D Analog input
155 G22MADIN4D Analog input
156 H22MADIN5D Analog input
157 H20MADIN6D Analog input
158 J21MADIN7D Analog input
159 F22EXT_CSI External capacitor
160 J4EXT_CUI External capacitor for USB.
161 A15SSIN1I Video sync slicer input #1
162 C14SSIN2I Video sync slicer input #2
163 A14SSIN3I Video sync slicer input #3
164 H4LPFP Video PLL low pass filter
165 A12VIN1AI Video input
166 C12VIN2AI Video input
(No.YA791<Rev.002>)1-5
Page 6
No. Ball NO.PIN NAMEI/ODESCRIPTION
167 A11VIN3AI Video input
168 A8VIN4AI Video input
169 A10VIN5AI Video input
170 C11VIN6AI Video input
171 C9VIN7AI Video input
172 B6VIN8AI Video input
173 A13YINI Video input
174 B9YOUTI Connect to YIN and SSIN3 through
175 B13VREFAP Video input
176 D11REXTP External capacitor
177 B12VIN1BI Video input
178 A7VIN2BI Video input
179 C8VIN3BI Video input
180 B7VIN4BI Video input
181 C7VIN5BI Video input
182 B11VREFBP External capacitor
183 A6VRPP External capacitor
184 B10VRMP External capacitor
185 D9VIN1CI Video input
186 B8VIN2CI Video input
187 D8VIN3CI Video input
188 A9VREFCP External capacitor
189 B14HSINI H sync in
190 B15VSINI V sync in
191 E3SIFINI SIF input
192 F2IFINPI Demodulator IF input negative
193 F1IFINMI Demodulator IF input negative
194 E2VRPIFP External capacitor
195 E1VRMIFP External capacitor
196 B22RXC0MI HDMI clock in - ch#0
197 B21RXC0PI HDMI clock in + ch#0
198 A22RX00MI HDMI data 0 - ch#0
199 A21RX00PI HDMI data 0 + ch#0
200 D20RX10MI HDMI data 1 - ch#0
201 D19RX10PI HDMI data 1 + ch#0
202 C20RX20MI HDMI data 2 - ch#0
203 C19RX20PI HDMI data 2 + ch#0
204 F20RXC1MI HDMI clock in - ch#1
205 F19RXC1PI HDMI clock in + ch#1
206 E20RX01MI HDMI data 0 - ch#1
207 E19RX01PI HDMI data 0 + ch#1
208 D22RX11MI HDMI data 1 - ch#1
209 D21RX11PI HDMI data 1 + ch#1
210 C22RX21MI HDMI data 2 - ch#1
211 C21RX21PI HDMI data 2 + ch#1
212 B20RXC2MI HDMI clock in - ch#2
213 A20RXC2PI HDMI clock in + ch#2
214 B19RX02MI HDMI data 0 - ch#2
215 A19RX02PI HDMI data 0 + ch#2
216 B18RX12MI HDMI data 1 - ch#2
217 A18RX12PI HDMI data 1 + ch#2
218 B17RX22MI HDMI data 2 - ch#2
219 A17RX22PI HDMI data 2 + ch#2
capacitor.
No. Ball NO.PIN NAMEI/ODESCRIPTION
220 D18EXT_RESI External resistor.
221 C15PWR0I HDMI PWR in ch#0
222 B16PWR1I HDMI PWR in ch#1
223 C18PWR2I HDMI PWR in ch#2
224 A16DDC0_SCLI HDMI DDC SCL ch#0
225 C16DDC0_SDAI/O HDMI DDC SDA ch#0
226 D15DDC1_SCLI HDMI DDC SCL ch#1
227 D16DDC1_SDAI/O HDMI DDC SDA ch#1
228 D17DDC2_SCLI HDMI DDC SCL ch#2
229 C17DDC2_SDAI/O HDMI DDC SDA ch#2
230 F21PLL_XFC_AP HDMI PLL filter
231 E21PLL_XFC_XP HDMI PLL filter
232 E22PLL_XFC_PP HDMI PLL filter
233 A1VCOM_ADCP External capacitor
234 B3AINRTI Open (Do not connect any signal).
235 C4AINL0I Audio A/D converter in L#0
236 B5AINR0I Audio A/D converter in R#0
237 C3AINL1I Audio A/D converter in L#1
238 B4AINR1I Audio A/D converter in R#1
239 C1AINL2I Audio A/D converter in L#2
240 A2AINR2I Audio A/D converter in R #2
241 C2AINL3I Audio A/D converter in L #3
242 A3AINR3I Audio A/D converter in R #3
243 B2AINL4I Audio A/D converter in L #4
244 A4AINR4I Audio A/D converter in R #4
245 B1AINL5I Audio A/D converter in L #5
246 A5AINR5I Audio A/D converter in R #5
247 G1DA_LOUTO Audio D/A converter out L
248 G2DA_ROUTO Audio D/A converter out R
249 G3DA_VCOMP Audio reference voltage
250 P10PLL1AVCCP PLL 3.3V power
251 V10PLL1DVDDP PLL 1.26V power
252 N10PLL2AVCCP PLL 3.3V power
253 N11PLL2DVDDP PLL 1.26V power
254 P11PLL3AVCCP PLL 3.3V power
255 V11PLL3DVDDP PLL 1.26V power
256 P13PLL4AVCCP PLL 3.3V power
257 N13PLL4DVDDP PLL 1.26V power
258 T18PLL5AVCCP PLL 3.3V power
259 N14PLL5DVDDP PLL 1.26V power
260 K4VDDA33USBP USB 3.3V analog power1
261 J2VDDA33USBP USB 3.3V analog power1
262 K5VDDA33RUP USB 3.3V analog power2
263 L5VSSAUSBG USB analog ground
264 R22VCC33STBP Standby 3.3V power
265 L18VCC33STBP Standby 3.3V power
266 M14VDDSTBP Core 1.26V power2
267 V13VCCQ33P IO 3.3V power
268 V15VCCQ33P IO 3.3V power
269 M4VCCQ33P IO 3.3V power
270 V18VCCQ33P IO 3.3V power
271 W10VCCQ33P IO 3.3V power
272 L10VDD12P Core 1.26V power1
1-6 (No.YA791<Rev.002>)
Page 7
No. Ball NO.PIN NAMEI/ODESCRIPTION
273 L11VDD12P Core 1.26V power1
274 L12VDD12P Core 1.26V power1
275 L13VDD12P Core 1.26V power1
276 L9VDD12P Core 1.26V power1
277 M13VDD12P Core 1.26V power1
278 L14VDD12P Core 1.26V power1
279 N18VDD12P Core 1.26V power1
280 N19VDD12P Core 1.26V power1
281 M20VDD12P Core 1.26V power1
282 N20VDD12P Core 1.26V power1
283 P9VDD12P Core 1.26V power1
284 V6VDD12P Core 1.26V power1
285 V8VDD12P Core 1.26V power1
286 V16VDD12P Core 1.26V power1
287 AB1VSSG Common ground
288 AB9VSSG Common ground
289 M18VSSG Common ground
290 K10VSSG Common ground
291 K11VSSG Common ground
292 K12VSSG Common ground
293 K13VSSG Common ground
294 K14VSSG Common ground
295 K18VSSG Common ground
296 K9VSSG Common ground
297 M10VSSG Common ground
298 M11VSSG Common ground
299 M12VSSG Common ground
300 M5VSSG Common ground
301 M9VSSG Common ground
302 N12VSSG Common ground
303 N9VSSG Common ground
304 P12VSSG Common ground
305 R18VSSG Common ground
306 P3VSSG Common ground
307 P5VSSG Common ground
308 T3VSSG Common ground
309 U18VSSG Common ground
310 U5VSSG Common ground
311 V12VSSG Common ground
312 V17VSSG Common ground
313 V5VSSG Common ground
314 V9VSSG Common ground
315 W4VSSG Common ground
316 Y3VSSG Common ground
317 Y7VSSG Common ground
318 V14VSSG Common ground
319 Y14VSSG Common ground
320 P14VSSG Common ground
321 N1VCCQ18P DDR2 1.8V power
322 N5VCCQ18P DDR2 1.8V power
323 T1VCCQ18P DDR2 1.8V power
324 V3VCCQ18P DDR2 1.8V power
325 Y1VCCQ18P DDR2 1.8V power
No. Ball NO.PIN NAMEI/ODESCRIPTION
326 Y5VCCQ18P DDR2 1.8V power
327 Y9VCCQ18P DDR2 1.8V power
328 T5VCCQ18P DDR2 1.8V power
329 J10VDD18P Digital 1.8V power
330 J11VDD18P Digital 1.8V power
331 J12VDD18P Digital 1.8V power
332 J9VDD18P Digital 1.8V power
333 E5MIXVDD33P Demodulator 3.3V analog power
334 F4MIXVDD33P Demodulator 3.3V analog power
335 D1MIXVDD33P Demodulator 3.3V analog power
336 D5MIXVDD33P Demodulator 3.3V analog power
337 E4MIXVDD33P Demodulator 3.3V analog power
338 E6MIXVDD33G Demodulator 3.3V analog power
339 F3MIXVDD33G Demodulator 3.3V analog power
340 D6MIXVDD33G Demodulator 3.3V analog power
341 D4RESERVEDG Open (Do not connect any signal).
342 C5RESERVEDG Open (Do not connect any signal).
343 D13VDD18HDMIP HDMI 1.8V power
344 J13VDD18HDMIP HDMI 1.8V power
345 E13VSSHDMIG HDMI ground
346 E16VSSHDMIG HDMI ground
347 F18VSSHDMIG HDMI ground
348 G19VSSHDMIG HDMI ground
349 J14VSSHDMIG HDMI ground
350 H18VSSHDMIG HDMI ground
351 E18VDD33HDMIP HDMI 3.3V power
352 G18VDD33HDMIP HDMI 3.3V power
353 J18VDD33_PLLP HDMI PLL 3.3V power
354 E17VDD33_PLL1P HDMI PLL 3.3V power
355 D14VDD33IOP HDMI digital 3.3V power
356 E15VPPOTPP HDMI digital 1.8V power
357 E14VSSIOG HDMI digital ground
358 E10AVDD18P Analog 1.8V power
359 E12AVDD18P Analog 1.8V power
360 C13AVDD33P Analog 3.3V power
361 C6AVDD33P Analog 3.3V power
362 D10AVDD33P Analog 3.3V power
363 E8AVDD33P Analog 3.3V power
364 D2AVDD33P Analog 3.3V power
365 F5AVDD33AUDP Audio DAC 3.3V power
366 H5AVDD33PLLP Video PLL 3.3V power
367 C10AVSSG Analog ground
368 D12AVSSG Analog ground
369 E7AVSSG Analog ground
370 D7AVSSG Analog ground
371 D3AVSSG Analog ground
372 E11AVSS18G Analog 1.8V ground
373 E9AVSS18G Analog 1.8V ground
374 G5AVSS33AUDG Audio DAC ground
375 G4AVSS33AUDG Audio DAC ground
376 J5AVSS33PLLG Video PLL ground
(No.YA791<Rev.002>)1-7
Page 8
SECTION 3
DISASSEMBLY
3.1REMOVAL OF MECHANICAL PARTS AND P.W. BOARDS
CAUTION
Be careful not to remove the FFC cable forcibly, because
the FFC cable may be damaged.
3.1.1 STAND ASS'Y (Refer to Fig. 3-1)
(1) Remove the 3 screws [A].
(2) Remove the Stand Ass'y in the direction of arrow [a].
3.1.2 REAR COVER (Refer to Fig. 3-1)
(1) Remove the screw [B].
(2) Remove the 3 screws [C].
(3) Remove the Rear Cover in the direction of arrow [b].
3.1.3 MAIN PWB (Refer to Fig. 3-1)
(1) Remove the 2 screws [D].
(2) Remove the 2 screws [E].
(3) Remove the Plate Jack in the direction of arrow [c].
(4) Remove the Shield Jack in the direction of arrow [d].
(5) Disconnect the following connectors: (CP301, CP2201,
CP2804, CP6204, CP6206 and CP6207).
(6) Remove the 3 screws [F].
(7) Remove the Main PWB in the direction of arrow [e].
3.1.4 POWER PWB (Refer to Fig. 3-1)
(1) Remove the 6 screws [G].
(2) Disconnect the following connector: (CP7001).
(3) Remove the Main PWB in the direction of arrow [f].
3.1.5 LCD PANEL UNIT (Refer to Fig. 3-1)
(1) Remove the screw [H].
(2) Remove the Angle Hinge in the direction of arrow [g].
(3) Remove the LCD Panel Unit in the direction of arrow [h].
3.1.6 REMOCON PWB, Operation PWB and LED PWB (Refer to Fig. 3-1)
(1) Remove the Remocon PWB in the direction of arrow [j].
(2) Unlock the 2 supports [J].
(3) Remove the LED PWB in the direction of arrow [k].
(4) Remove the Operation PWB in the direction of arrow [m].
1-8 (No.YA791<Rev.002>)
Page 9
[D]
[D]
[E]
Shield Jack
[c]
[E]
[d]
CP2804
Plate Jack
[F]
[F]
CP6207
CP301
Main PWB
CP6206
Rear Cover
CP6204
[F]
[B]
[C]
[b]
[C]
[H]
[g]
[C]
[G]
[G]
CP7001
Angle Hinge
[G]
[A]
[a]
[A]
[A]
STAND ASS'Y
[G]
[G]
[G]
Power PWB
[f]
[e]
Remocon PWB
[j]
[h]
LED PWB
[k]
[J]
LCD Panel Unit
CP2201
Operation PWB
[m]
Front Cabinet ASS'Y
Fig.3-1
(No.YA791<Rev.002>)1-9
Page 10
3.2REMOVAL AND INSTALLATION OF FLAT PACKAGE IC
3.2.1 REMOVAL
(1) Put Masking Tape (cotton tape) around the Flat Package
IC to protect other parts from any damage. (Refer to Fig.32-1.)
NOTE
Masking is carried out on all the parts located within 10
mm distance from IC leads.
Masking Tape
(Cotton Tape)
IC
Fig.3-2-1
(2) Heat the IC leads using a blower type IC desoldering ma-
chine. (Refer to Fig.3-2-2.)
NOTE
Do not rotate or move the IC back and forth, until IC can
move back and forth easily after desoldering the leads
completely.
(3) When IC starts moving back and forth easily after desolder-
ing completely, pickup the corner of the IC using tweezers
and remove the IC by moving with the IC desoldering machine. (Refer to Fig.3-2-3.)
NOTE
Some ICs on the PWB are affixed with glue, so be careful
not to break or damage the foil of each IC leads or solder
lands under the IC when removing it.
Blower type IC
desoldering machine
Tweezers
Blower type IC
desoldering machine
IC
Fig.3-2-3
(4) Peel off the Masking Tape.
(5) Absorb the solder left on the pattern using the Braided
Shield Wire. (Refer to Fig.3-2-4.)
NOTE
Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.
Braided Shield Wire
IC
Fig.3-2-2
IC pattern
Soldering Iron
Fig.3-2-4
1-10 (No.YA791<Rev.002>)
Page 11
3.2.2 INSTALLATION
(1) Take care of the polarity of new IC and then install the new
IC fitting on the printed circuit pattern. Then solder each
lead on the diagonal positions of IC temporarily. (Refer to
Fig.3-2-5.)
(4) When bridge-soldering between terminals and/or the sol-
dering amount are not enough, resolder using a Thintip
Soldering Iron. (Refer to Fig.3-2-8.)
Soldering Iron
Solder temporarily
Solder temporarily
Fig.3-2-5
(2) Supply the solder from the upper position of IC leads slid-
ing to the lower position of the IC leads. (Refer to Fig.3-2-
6.)
Solder
Soldering Iron
Supply soldering
IC
from upper position
to lower position
Thin-tip Soldering Iron
IC
Fig.3-2-8
(5) Finally, confirm the soldering status on four sides of the IC
using a magnifying glass.
Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If
some abnormality is found, correct by resoldering.
NOTE
When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending
of leads are repaired, the pattern may be damaged. So,
always be sure to replace the IC in this case.
Fig.3-2-6
(3) Absorb the solder left on the lead using the Braided Shield
Wire. (Refer to Fig.3-2-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig.3-2-7
(No.YA791<Rev.002>)1-11
Page 12
SECTION 4
ADJUSTMENT
4.1SERVICE MODE
This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote control for
more than a the standard time in the appropriate condition. (See below chart.)
Set ConditionSet KeyRemocon Key Standard TimeOperations
POWER ON
POWER ON
POWER ON
POWER ON
POWER ON
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
VOL. DOWN
(Minimum)
02 sec.
12 sec.
62 sec.
82 sec.
92 sec.
4.2WHEN REPLACING EEPROM (MEMORY) IC
4.2.1 CONFIRMATION OF CHECK SUM, POWER ON TOTAL HOURS AND MICON VERSION
Initial total of MEMORY IC, POWER ON total hours and MICON VERSION can be checked on the screen. Total hours are displayed
in 16 system of notation.
NOTE
If you set a factory initialization, the total hours is reset to "0"
Please refer to "CONFIRMATION OF INITIAL DATA" when SUM DATA is not corresponding.
Releasing of V-CHIP PASSWORD.
Initialization of factory TV data.
NOTE: If you set factory initialization the memories are reset such as
the channel setting and the POWER ON total hours.
POWER ON total hours are displayed on the screen.
Can be checked of the INITIAL DATA of MEMORY IC. Refer to the
"WHEN REPLACING EEPROM (MEMORY) IC".
Check of the SUM DATA and MICON VERSION on the screen.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
(1) Turn on the POWER and set to the ALL mode.
(2) Set the VOLUME to minimum.
(3) Press both VOL.DOWN button on the set and Channel button (8) on the remote control for more than 2 seconds.
(4) After the confirmation of each check sum, turn off the power.
NOTE
The each item value might be different according to each set.
Initial setting data check sum.
POWER ON total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure
correct data settings while making reference to INITIAL SETTING TABLE (Attached "INITIAL DATA").
(1) Turn on the POWER, and set to the ALL mode.
(2) Set the VOLUME to minimum.
(3) Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds.
ADDRESS and DATA should appear as FIG 4-2.
NOTE
No need to set data other position than 0200~0F79.
ADDRESSDATA
INIT :0001 0087
DTV : CA3BI04271
EEPROM : K3AQ13WM00
Fig.4-2
(4) ADDRESS is now selected and should "blink". Using the CH. UP/DOWN button on the remote, step through the ADDRESS until
required ADDRESS to be changed is reached.
(5) Press LEFT/RIGHT button to select DATA. When DATA is selected, it will "blink".
(6) Again, step through the DATA using CH. UP/DOWN button until required DATA value has been selected.
(7) Pressing LEFT/RIGHT button will take you back to ADDRESS for further selection if necessary.
(8) Repeat steps 4 to 6 until all data has been checked.
(9) When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
After the data input, set to the initializing of shipping.
(10) Turn on the Power.
(11) Set the VOLUME to minimum.
(12) Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
(13) After the finishing of the initializing of shipping, the unit will turn off automatically.
The unit will now have the correct DATA for the new MEMORY IC.
(No.YA791<Rev.002>)1-13
Page 14
4.3ADJUSTMENT PROCEDURE
Read and perform these adjustments when repairing the circuits
or replacing electrical parts or PWB assemblies.
CAUTION
• Use an isolation transformer when performing any service
on this chassis.
• When removing a PWB or related component, after unfastening or changing a wire, be sure to put the wire back in its
original position.
• When you exchange IC and Transistor with a heat sink, apply silicon grease (YG6260M) on the contact section of the
heat sink. Before applying new silicon grease, remove all the
old silicon grease. (Old grease may cause damages to the
IC and Transistor).
4.3.1 Prepare the following measurement tools for electrical adjustments.
(1) Pattern Generator
4.3.2 On-Screen Display Adjustment
(1) Set the VOLUME to minimum.
(2) Press the VOL. DOWN button on the set and the channel
button (9) on the remote control for more than 2 seconds to
display adjustment mode on the screen as shown in Fig. 4-
3.
NO. FUNCTIONNO. FUNCTION
03 R DRIVE(N) 35 TINT
04 R CUTOFF(N) 36 SHARP H1 MAX
05 G DRIVE(N) 37 SHARP H1 MIN
06 G CUTOFF(N) 38 SHARP H2 MAX
07 B DRIVE(N) 39 SHARP H2 MIN
08 B CUTOFF(N) 40 SHARP H3 MAX
09 R DRIVE(C) 41 SHARP H3 MIN
10 R CUTOFF(C) 42 SHARP H4 MAX
11 G DRIVE(C) 43 SHARP H4 MIN
12 G CUTOFF(C) 44 SHARP H5 MAX
13 B DRIVE(C) 45 SHARP H5 MIN
14 B CUTOFF(C) 46 SHARP V1 MAX
15 R DRIVE(W) 47 SHARP V1 MIN
16 R CUTOFF(W) 48 SHARP V2 MAX
17 G DRIVE(W) 49 SHARP V2 MIN
18 G CUTOFF(W) 50 CONTRAST CENTER
19 B DRIVE(W) 51 CONTRAST MAX
20 B CUTOFF(W) 52 CONTRAST MIN
29 BAK LIGHT CENT 53 COLOR CENTER
30 BAK LIGHT MAX 54 COLOR MAX
31 BAK LIGHT MIN 55 COLOR MIN
32 BRIGHTNESS CENT 58 CONTRAST 40
33 BRIGHTNESS MAX
34 BRIGHTNESS MIN
TV
Full
03R DRIVE(N)11
Function
Step No.
Fig.4-3
(3) Use the CH. UP/DOWN button or Channel button (0-9) on
the remote control to select the options shown in Fig. 4-4.
(4) Press the MENU button on the remote control to end the
adjustments.
(5) To display the adjustment screen for TV, AV, COMPO-
NENT, HDMI and PC mode, press the INPUT SELECT
button on the remote control.
(6) Receive the DIGITAL broadcasting.
(7) To display the adjustment screen for DTV mode, select the
digital channel.
(8) Press the VOL.DOWN button on the set and the channel
(9) on the remote control for more than 2 seconds.
Fig.4-4
4.4 BASIC ADJUSTMENTS
4.4.1 WHITE BALANCE
(1) Place the set in Aging Test for more than 15 minutes.
(2) Receive the gray scale pattern from the Pattern Generator.
(3) Press the INPUT SELECT button on the remote control to
set to the AV mode.
(4) Using the remote control, set the brightness and contrast to
normal position.
(5) Activate the adjustment mode display of Fig.4-3 and press
the channel button (03) on the remote control to select "R
DRIVE(N)".
(6) Press the CH. UP/DOWN button on the remote control to
(7) Adjust the LEFT/RIGHT button on the remote control to
whiten the "R DRIVE(N)", "R CUTOFF(N)", "B DRIVE(N)",
"B CUTOFF(N)", "R DRIVE(C)", "R CUTOFF(C)", "B
DRIVE(C)", "B CUTOFF(C)", "R DRIVE(W)", "R CUTOFF(W)", "B DRIVE(W)" and "B CUTOFF(W)" at each step
tone sections equally.
(8) Perform the above adjustments 6 and 7 until the white color
is achieved.
1-14 (No.YA791<Rev.002>)
Page 15
4.4.2 BRIGHTNESS CENT
(1) Place the set in Aging Test for more than 15 minutes.
(2) Receive the color bar pattern. (RF Input)
(3) Using the remote control, set the brightness and contrast to
normal position.
(4) Activate the adjustment mode display of Fig.4-3 and press
the channel button (32) on the remote control to select
"BRIGHTNESS CENT".
(5) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "121".
(6) Check if the picture is normal.
(7) Receive the color bar pattern. (VIDEO Input)
(8) Using the remote control, set the brightness and contrast to
normal position.
(9) Press the INPUT SELECT button on the remote control to
set to the AV mode.
(10) Activate the adjustment mode display of Fig.4-3 and press
the channel button (32) on the remote control to select
"BRIGHTNESS CENT".
(11) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "128".
(12) Check if the picture is normal.
(13) Receive the color bar pattern. (COMPONENT Input)
(14) Using the remote control, set the brightness and contrast to
normal position.
(15) Press the INPUT SELECT button on the remote control to
set to the COMPONENT mode.
(16) Activate the adjustment mode display of Fig.4-3 and press
the channel button (32) on the remote control to select
"BRIGHTNESS CENT".
(17) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "127".
(18) Check if the picture is normal.
(19) Receive the color bar pattern. (HDMI Input)
(20) Using the remote control, set the brightness and contrast to
normal position.
(21) Press the INPUT SELECT button on the remote control to
set to the HDMI mode.
(22) Activate the adjustment mode display of Fig.4-3 and press
the channel button (32) on the remote control to select
"BRIGHTNESS CENT".
(23) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "128".
(24) Check if the picture is normal.
4.4.3 CONTRAST MAX
(1) Place the set in Aging Test for more than 15 minutes.
(2) Receive the color bar pattern. (RF Input)
(3) Using the remote control, set the brightness and contrast to
normal position.
(4) Activate the adjustment mode display of Fig.4-3 and press
the channel button (51) on the remote control to select
"CONTRAST MAX".
(5) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "172".
(6) Check if the picture is normal.
(7) Receive the color bar pattern. (VIDEO Input)
(8) Using the remote control, set the brightness and contrast to
normal position.
(9) Press the INPUT SELECT button on the remote control to
set to the AV mode.
(10) Activate the adjustment mode display of Fig.4-3 and press
the channel button (51) on the remote control to select
"CONTRAST MAX".
(11) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "143".
(12) Check if the picture is normal.
(13) Receive the color bar pattern. (COMPONENT Input)
(14) Using the remote control, set the brightness and contrast to
normal position.
(15) Press the INPUT SELECT button on the remote control to
set to the COMPONENT mode.
(16) Activate the adjustment mode display of Fig.4-3 and press
the channel button (51) on the remote control to select
"CONTRAST MAX".
(17) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "141".
(18) Check if the picture is normal.
(19) Receive the color bar pattern. (HDMI Input)
(20) Using the remote control, set the brightness and contrast to
normal position.
(21) Press the INPUT SELECT button on the remote control to
set to the HDMI mode.
(22) Activate the adjustment mode display of Fig.4-3 and press
the channel button (51) on the remote control to select
"CONTRAST MAX".
(23) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "144".
(24) Check if the picture is normal.
(No.YA791<Rev.002>)1-15
Page 16
4.4.4 CONTRAST CENTER
(1) Place the set in Aging Test for more than 15 minutes.
(2) Receive the color bar pattern. (RF Input)
(3) Using the remote control, set the brightness and contrast to
normal position.
(4) Activate the adjustment mode display of Fig.4-3 and press
the channel button (50) on the remote control to select
"CONTRAST CENTER".
(5) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "135".
(6) Check if the picture is normal.
(7) Receive the color bar pattern. (VIDEO Input)
(8) Using the remote control, set the brightness and contrast to
normal position.
(9) Press the INPUT SELECT button on the remote control to
set to the AV mode.
(10) Activate the adjustment mode display of Fig.4-3 and press
the channel button (50) on the remote control to select
"CONTRAST CENTER".
(11) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "106".
(12) Check if the picture is normal.
(13) Receive the color bar pattern. (COMPONENT Input)
(14) Using the remote control, set the brightness and contrast to
normal position.
(15) Press the INPUT SELECT button on the remote control to
set to the COMPONENT mode.
(16) Activate the adjustment mode display of Fig.4-3 and press
the channel button (50) on the remote control to select
"CONTRAST CENTER".
(17) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "103".
(18) Check if the picture is normal.
(19) Receive the color bar pattern. (HDMI Input)
(20) Using the remote control, set the brightness and contrast to
normal position.
(21) Press the INPUT SELECT button on the remote control to
set to the HDMI mode.
(22) Activate the adjustment mode display of Fig.4-3 and press
the channel button (50) on the remote control to select
"CONTRAST CENTER".
(23) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "96".
(24) Check if the picture is normal.
4.4.5 CONTRAST 40
(1) Place the set in Aging Test for more than 15 minutes.
(2) Receive the color bar pattern. (RF Input)
(3) Using the remote control, set the brightness and contrast to
normal position.
(4) Activate the adjustment mode display of Fig.4-3 and press
the channel button (58) on the remote control to select
"CONTRAST 40".
(5) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "164".
(6) Check if the picture is normal.
(7) Receive the color bar pattern. (VIDEO Input)
(8) Using the remote control, set the brightness and contrast to
normal position.
(9) Press the INPUT SELECT button on the remote control to
set to the AV mode.
(10) Activate the adjustment mode display of Fig.4-3 and press
the channel button (58) on the remote control to select
"CONTRAST 40".
(11) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "129".
(12) Check if the picture is normal.
(13) Receive the color bar pattern. (COMPONENT Input)
(14) Using the remote control, set the brightness and contrast to
normal position.
(15) Press the INPUT SELECT button on the remote control to
set to the COMPONENT mode.
(16) Activate the adjustment mode display of Fig.4-3 and press
the channel button (58) on the remote control to select
"CONTRAST 40".
(17) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "126".
(18) Check if the picture is normal.
(19) Receive the color bar pattern. (HDMI Input)
(20) Using the remote control, set the brightness and contrast to
normal position.
(21) Press the INPUT SELECT button on the remote control to
set to the HDMI mode.
(22) Activate the adjustment mode display of Fig.4-3 and press
the channel button (58) on the remote control to select
"CONTRAST 40".
(23) Press the LEFT/RIGHT button on the remote control until
the contrast step No. becomes "117".
(24) Check if the picture is normal.
1-16 (No.YA791<Rev.002>)
Page 17
4.4.6 Confirmation of Fixed Value (Step No.)
Please check if the fixed values of each of the adjustment item is set correctly referring below. (TV/AV/COMPONENT/HDMI/PC/DTV)
NO.FUNCTIONTV
03R.DRIVE (N)**************
04R CUTOFF (N)**************
05G DRIVE (N)00000000000000
06G CUTOFF (N)00000000000000
07B DRIVE (N)**************
08B CUTOFF (N)**************
09R.DRIVE (C)**************
10R CUTOFF (C)**************
11G DRIVE (C)00000000000000
12G CUTOFF (C)00000000000000
13B DRIVE (C)**************
14B CUTOFF (C)**************
15R.DRIVE (W)**************
16R CUTOFF (W)**************
17G DRIVE (W)00000000000000
18G CUTOFF (W)00000000000000
19B DRIVE (W)**************
20B CUTOFF (W)**************
29 BAK LIGHT CENT5454545454545454545454545454
30 BAK LIGHT MAX100100100100100100100100100100100100100100
NOTE: For the step no. with * mark, please adjust it according to the situation of the set.
1-18 (No.YA791<Rev.002>)
Page 19
5.1LCD SECTION
POWER DOES NOT TURN ON
SECTION 5
TROUBLESHOOTING
No
Is there voltage at
pin 6 of IC501 21V?
Yes
Change POWER PWB.
Yes
No
Change F501.Is F501 broken?
Check IC501 and peripheral
circuit.
(No.YA791<Rev.002>)1-19
Page 20
No
THE PICTURE APPEARS,
BUT THE AUDIO DOES NOT
APPEARS. (AT RF MODE)
Is SPEAKER WIRE
CONNECTOR
connected?
Yes
Is there signal at pins
1 and 4 of CP301?
No
Is there signal at pins 2
and 4 of IC301?
Is there signal at pins
G1 and G2 of IC2801?
No
No
Yes
Yes
Yes
Connect SPEAKER WIRE
CONNECTOR.
Change SPEAKER
Check IC301 and peripheral
circuit.
Check Q303, Q304 and
peripheral circuit.
RF MODE
Is there signal at pin 14
of TU5800? And Is
there signal at pin 15,16
of TU5800?
Change TU5800.
CVBS/COMPONENT/HDMI(DVI)/PCMODE
Yes
No
Check INPUT JACK
CONNECTOR and
peripheral circuit.
ChangeIC2801
(Change Digital PWB).
Change IC2801
(Change Digital PWB).
1-20 (No.YA791<Rev.002>)
Page 21
THE PICTURE DOES NOT
No
APPEAR
Does backlight shine?
Yes
Is CD2801 connected?
Yes
Is there voltage at pins
Vcc of CP2804 5V?
Yes
Is there signal at pins
4,5,7,8,10,18,20,21,23,
24 of CP2804?
Change DIGITAL PWB.
NoNo
No
No
Yes
Is there voltage at pin
3 of IC7001 12V?
Yes
Connected CD2801.
Check Q3008 and
peripheral circuit.
Change V2801(PANEL).
Is Q7001 broken?
Yes
Change Q7001.
No
Check IC501, T501 and
peripheral circuit.
(No.YA791<Rev.002>)1-21
Page 22
THE COLOR DOES NOT
APPEAR
Is setting of color
normal?
Yes
Is the color signal
received?
Yes
Is there color signal
at IC2801?
Yes
Change DIGITAL PWB.
No
No
No
Adjust the color.
Receive the color signal.
Check IC2801 and peripheral
circuit.
Victor Company of Japan, Limited
Home Entertainment Business Division Home Theater Operation 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
(No.YA791<Rev.002>)
Printed in Japan
VSE
Page 23
SCHEMATIC DIAGRAMS
LCD COLOR TELEVISION
LT-19E610/AAR
There may be multiple versions of this TV model.
The TV version is identified by the letters next to
the model number on the TV's Rating and Model
No. labels. (See illustration).
Use the service manual that matches the version
of the TV.
The components identified by thesymbol and shading are
critical for safety. For continued safety replace safety ciritical
components only with manufactures recommended parts.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1)Input signal: Colour bar signal
(2)Setting positions of
each knob/button and
variable resistor
(3)Internal resistance of tester
(4)Oscilloscope sweeping time
(5)Voltage values
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
Capacitance value
1 or higher: [pF]
less than 1
Withstand voltage
No indication: DC50[V]
Others: DC withstand voltage [V]
AC indicated
Electrolytic Capacitors
47/50[Example]: Capacitance value [µF]/withstand voltage[V]
: [kΩ]
: [MΩ]
: Carbon resistor
: Oxide metal film resistor
: Metal film resistor
: Metal plate resistor
: Uninflammable resistor
: Fusible resistor
: [µF]
: AC withstand voltage [V]
(7)Ground symbol
: LIVE side ground
: ISOLATED(NEUTRAL) side ground
: EARTH ground
: DIGITAL ground
5.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be
taken for the following points.
(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. if the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from
the receptacle when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected, a fuse or any parts will be broken.
Since the circuit diagram is a standard one, the circuit and
circuit constants may be subject to change for improvement
without any notice.
NOTE
Due improvement in performance, some part numbers show
in the circuit diagram may not agree with those indicated in
the part list.
When ordering parts, please use the numbers that appear
in the Parts List.
OM RMetal Oxide Film ResistorPP CAP.Polypropylene Capacitor
CMF RCoating Metal Film ResistorPS CAP.Polystyrol Capacitor
UNF RNon-Flammable ResistorTF CAP.Thin Film Capacitor
CH V RChip Variable ResistorMPP CAP.Metalized Polypropylene Capacitor
CH MG RChip Metal Glazed ResistorTAN. CAP.Tantalum Capacitor
COMP. RComposition ResistorCH C CAP.Chip Ceramic Capacitor
LPTC RLinear Positive Temperature Coefficient ResistorBP E CAP.Bi-Polar Electrolytic Capacitor
CH AL E CAP.Chip Aluminum Electrolytic Capacitor
CH AL BP CAP.Chip Aluminum Bi-Polar Capacitor
CH TAN. E CAP.Chip Tantalum Electrolytic Capacitor
CH AL BP E CAP. Chip Tantalum Bi-Polar Electrolytic Capacitor
RESISTORS
FGJ KMNRHZP
±1%±2%±5%±10%±20%±30%
+30%
-10%
+50%
-10%
+80%
-20%
+100%
-0%
(No.YA791<Rev.002>)3-1
Page 50
CONTENTS
USING P.W. BOARD & REMOTE CONTROL UNIT ................................................................................................... 3-2
EXPLODED VIEW PARTS LIST ................................................................................................................................. 3-3
WIRING PARTS LIST .................................................................................................................................................. 3-6
PRINTED WIRING BOARD PARTS LIST ................................................................................................................... 3-7
MAIN P.W. BOARD ASS'Y (X-A3AQ13WF40) .................................................................................................. 3-7
POWER P.W. BOARD ASS'Y (X-A3AQ08W240) ............................................................................................ 3-10
PACKING PARTS LIST ............................................................................................................................................. 3-12
103X-7A7040118ASTAND ASSY
103AX-704WPA0161STAND BASE
103BX-800SRA0002CUSHION LEG(x4)
104X-769WSA0022VESA SHAFT
105X-704WPA0164STAND FRAME
106X-706WPA0031CONNECTOR COVER
107X-709WPA0051WIRE HOLDER
108X-722538A075SHEET RATING
109X-723000E594SHEET JACK 2
110X-723000E603SHEET JACK 1
111X-723538A017POP LABEL
112X-752WSA0775SHIELD (JACK)
113X-759WNA0008SHEET PC
114X-761WPA0627PLATE JACK
115X-761WSA0804ANGLE HINGE
116X-7290000210DOUBLE FACE TAPE
117X-723000E371ENERGY STAR LABEL
118X-752WSA0778SHIELD DIGITAL
201X-8109I30A0USCREW3x10
202X-8110K2660USCREW2.6x6(x2)
203X-8107K2660USCREW2.6x6
204X-810722660USCREW2.6x6(x10)
205X-810722680USCREWM2.6x8(x2)
206X-8109230A0USCREW3x10(x8)
300X-A3AQ13W360LCD PANEL UNIT
SPX-070Y433010SPEAKER2pcs in 1set
C301NCB31AK-105XC CAPACITOR1uF 10V B
C303NCB31AK-105XC CAPACITOR1uF 10V B
C304X-E7EPU2101ME CAPACITOR100uF 16V
C305X-CS0PCH4Q2JC CAPACITOR470pF 50V CH
C306X-CS0PCH4Q2JC CAPACITOR470pF 50V CH
C307X-E7EPU5100ME CAPACITOR10uF 50V
C309X-E7EPT2471ME CAPACITOR470uF 16V
C310X-E7EST2471ME CAPACITOR470uF 16V
C311X-E7EST2471ME CAPACITOR470uF 16V
C319X-E7EPU5100ME CAPACITOR10uF 50V
C323X-E7EPU54R7ME CAPACITOR4.7uF 50V
C325X-CS0UB0N16KC CAPACITOR1uF 10V B
C326NCBA1EK-153WC CAPACITOR0.015uF 25V B
C327X-CS0UB03Q3KC CAPACITOR0.0047uF 25V B
C328X-CS0UB0N16KC CAPACITOR1uF 10V B
C329X-CS0UB0N16KC CAPACITOR1uF 10V B
C330X-CS0UB0N16KC CAPACITOR1uF 10V B
C331X-CS0UB0N16KC CAPACITOR1uF 10V B
C2801NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2803NCBA1CK-103WC CAPACITOR0.01uF 16V B
C2804NCB31AK-474XC CAPACITOR0.47uF 10V B
C2805NCBA1CK-103WC CAPACITOR0.01uF 16V B
C2807X-CS0UCH4H1JC CAPACITOR22pF 50V CH
C2808X-CS0UCH4K1JC CAPACITOR27pF 50V CH
C2809NCBA1HK-102WC CAPACITOR0.001uF 50V B
C2811NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2812NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2813NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2814NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2815NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2816NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2817NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2818NCBA1AK-104WC CAPACITOR0.1uF 10V B
Ref No.Part No.Part NameDescription Local
C2819NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2820NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2821NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2822X-CS0UB0N16KC CAPACITOR1uF 10V B
C2823X-CS0UB0N16KC CAPACITOR1uF 10V B
C2824X-CS0UB0N16KC CAPACITOR1uF 10V B
C2825NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2826NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2827NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2828NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2829NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2830NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2831NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2832NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2833NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2834NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2835NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2836NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2837NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2838NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2839NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2840NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2842X-CS0UB0N16KC CAPACITOR1uF 10V B
C2843NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2844NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2845NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2846NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2847NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2848X-CS0UB0N16KC CAPACITOR1uF 10V B
C2851X-E7EPU0101ME CAPACITOR100uF 6.3V
C2854NCB31EK-104XC CAPACITOR0.1uF 25V B
C2855NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2856NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2857NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2858NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2859NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2860NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2861NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2862NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2863NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2864NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2865NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2866NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2867NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2868NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2869NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2870X-CS0UB0N16KC CAPACITOR1uF 10V B
C2871X-CS0UB0N16KC CAPACITOR1uF 10V B
C2872NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2873NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2874NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2875NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2876NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2877NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2878X-CS0UB0N16KC CAPACITOR1uF 10V B
C2879NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2880NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2881NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2882NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2883NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2884NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2885NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2886NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2887NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2888NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2889NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2891NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2894X-E61UMQ331DE CAPACITOR330uF 4V
C2895NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2897NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2898X-CS0UB0N16KC CAPACITOR1uF 10V B
C2899X-CS0UB0N16KC CAPACITOR1uF 10V B
C2902X-CS0UB0N16KC CAPACITOR1uF 10V B
C2903X-CS0UB0N16KC CAPACITOR1uF 10V B
C2904NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2905NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2906X-CS0UB0N16KC CAPACITOR1uF 10V B
C2907X-CS0UB0N16KC CAPACITOR1uF 10V B
C2908X-CS0UB0N16KC CAPACITOR1uF 10V B
C2909NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2911NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2912NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2913NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2914NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2915X-CS0UB0N16KC CAPACITOR1uF 10V B
C2916NCBA1AK-104WC CAPACITOR0.1uF 10V B
(No.YA791<Rev.002>)3-7
Page 56
Ref No.Part No.Part NameDescription Local
Ref No.Part No.Part NameDescription Local
C2917NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2918NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2919X-CS0UB0N16KC CAPACITOR1uF 10V B
C2921NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2923NCB31AK-105XC CAPACITOR1uF 10V B
C2925NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2926NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2927NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2928NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2929NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2930NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2931NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2932NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2933NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2934NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2935NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2936NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2937NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2939NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2940NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2944NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2945NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2946NCB31AK-105XC CAPACITOR1uF 10V B
C2948NCB31AK-105XC CAPACITOR1uF 10V B
C2950NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2951NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2952NCB31AK-105XC CAPACITOR1uF 10V B
C2953NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2954NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2955NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2956NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2957NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2958NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2959X-E7EXU2220DE CAPACITOR22uF 16V
C2960NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2961NCBA1HK-102WC CAPACITOR0.001uF 50V B
C2962NCBA1HK-102WC CAPACITOR0.001uF 50V B
C2963NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2964NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2966NCJ21AK-106X-AC CAPACITOR10uF 10V B
C2972NCB31AK-105XC CAPACITOR1uF 10V B
C2974NCB31AK-105XC CAPACITOR1uF 10V B
C2976NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2979NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2980NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2981NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2982NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2986X-E61UMQ331DE CAPACITOR330uF 4V
C3003NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3004NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3008NCBA1HK-102WC CAPACITOR0.001uF 50V B
C3009NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3011NCB31AK-105XC CAPACITOR1uF 10V B
C3012NCBA1AK-104WC CAPACITOR0.1uF 10V B
C3014NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3015NCBA1AK-104WC CAPACITOR0.1uF 10V B
C3020NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3022NCBA1EK-153WC CAPACITOR0.015uF 25V B
C3023X-CS0UB0NH5KC CAPACITOR0.22uF 10V B
C3024NCBA1EK-103WC CAPACITOR0.01uF 25V B
C3025NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3027NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3029X-CS0UB04H4KC CAPACITOR0.022uF 50V B
C3031X-E71GMM151DE CAPACITOR150uF 2V
C3032NCBA1AK-104WC CAPACITOR0.1uF 10V B
C3035NCBA1EK-103WC CAPACITOR0.01uF 25V B
C3039NCBA1EK-153WC CAPACITOR0.015uF 25V B
C3045NCJ21AK-106X-AC CAPACITOR10uF 10V B
C3057X-E71GMQ101DE CAPACITOR100uF 4V
C3059X-CS0UB03Q4KC CAPACITOR0.047uF 25V B
C3062NCBA1AK-104WC CAPACITOR0.1uF 10V B
C3064NCJ30JK-475X-AC CAPACITOR4.7uF 6.3V B
C3065NCJ21CK-475X-AC CAPACITOR4.7uF 16V B
C3601NCBA1AK-104WC CAPACITOR0.1uF 10V B
C3602NCBA1AK-104WC CAPACITOR0.1uF 10V B
C3607NCBA1CK-103WC CAPACITOR0.01uF 16V B
C3608NCBA1HK-222WC CAPACITOR0.0022uF 50V B
C3609NCBA1AK-104WC CAPACITOR0.1uF 10V B
C3610NCJ30JK-475X-AC CAPACITOR4.7uF 6.3V B
C3613NCBA1EK-223WC CAPACITOR0.022uF 25V B
C3627NCBA1AK-104WC CAPACITOR0.1uF 10V B
C4230NCBA1AK-104WC CAPACITOR0.1uF 10V B
C4236X-CS0UB0N16KC CAPACITOR1uF 10V B
C4240NCBA1AK-104WC CAPACITOR0.1uF 10V B
C4247X-CS0UCH412JC CAPACITOR100pF 50V CH
C5801NCBA1AK-104WC CAPACITOR0.1uF 10V B
C5805X-CS0UCH4Q1JC CAPACITOR47pF 50V CH
C5808NCBA1AK-104WC CAPACITOR0.1uF 10V B
C5809X-CS0UCH4Q1JC CAPACITOR47pF 50V CH
C5816X-CS0UCH4L1JC CAPACITOR33pF 50V CH
C5818NCBA1AK-104WC CAPACITOR0.1uF 10V B
C5819NCBA1AK-104WC CAPACITOR0.1uF 10V B
C5822X-CS0UCH4L1JC CAPACITOR33pF 50V CH
C5823X-CS0UCH4N1JC CAPACITOR39pF 50V CH
C5829X-CS0PB02L5KC CAPACITOR0.33uF 16V B
C5832NCBA1AK-104WC CAPACITOR0.1uF 10V B
C5838X-E7EPU0471ME CAPACITOR470uF 6.3V
C5844NCJ21AK-106X-AC CAPACITOR10uF 10V B
C6201X-CS0UB0215KC CAPACITOR0.1uF 16V B
C6202X-CS0UB0215KC CAPACITOR0.1uF 16V B
C6209X-E7EPU0101ME CAPACITOR100uF 6.3V
C6210X-CS0UB0P14KC CAPACITOR0.01uF 6.3V B
C6213NCB31AK-105XC CAPACITOR1uF 10V B
C2201NCBA1AK-104WC CAPACITOR0.1uF 10V B
C2202NCBA1EK-223WC CAPACITOR0.022uF 25V B
C2203NCBA1EK-223WC CAPACITOR0.022uF 25V B
C2204NCBA1EK-223WC CAPACITOR0.022uF 25V B
C2205NCBA1EK-223WC CAPACITOR0.022uF 25V B
C2206NCBA1EK-223WC CAPACITOR0.022uF 25V B
C2207NCBA1EK-223WC CAPACITOR0.022uF 25V B
C2209NCBA1EK-223WC CAPACITOR0.022uF 25V B
2X-076R0SF01AREMOTE CONTROL UNITR56-2235
3X-791WHA0173FILM BAG
4X-7G769A002APAD ASSY
5X-723000E664CARTON LABEL4pcs in 1set
6X-791WHA0189FILM BAG
7X-792WHA0814CUSHION TOP
8X-792WHA0815CUSHION BOTTOM
9X-793WCDE423PACKING CASE
10X-8905000013SCREW
11X-JA5N0001POLYBAG
12X-J3AI0802AWARRANTY CARD
13X-J3AI0817AREGISTRATION CARD
14X-J3AQ1321AINSTRUCTION BOOK
15X-795WCA0735PAD(x2)
3-12(No.YA791<Rev.002>)
Page 61
Victor Company of Japan, Limited
Home Entertainment Business Division Home Theater Operation 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
(No.YA791<Rev.002>)
Printed in Japan
VSE
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