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SERVICE MANUAL
COLOUR TELEVISION
4
2006
YA366
AV-29L6SU
BASIC CHASSIS
MR
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5 TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
COPYRIGHT © 2006 Victor Company of Japan, Limited No.YA366
2006/4
SPECIFICATION
Items Contents
Dimensions ( W × H × D ) 67.0 cm × 61.6 cm × 40.4 cm
Mass 40.5 kg
TV RF System CCIR (B/G, I, D/K, L)
Colour System PAL, SECAM, NTSC3.58 / NTSC4.43 (Only EXT mode)
Stereo System A2 (B/G, D/K) / NICAM (B/G, I, D/K, L)
Receiving VHF 47 MHz - 470 MHz
Frequency UHF 470 MHz - 862 MHz
French CATV 116 MHz - 172 MHz
220 MHz - 469 MHz
Intermediate VIF 38.9 MHz (B/G, I, D/K, L)
Frequency SIF 33.4 MHz (5.5 MHz :B/G)
32.9 MHz ( 6.0 MHz:I )
32.4 MHz (6.5 MHz :L, D/K)
Colour Sub PAL 4.43 MHz
Carrier Frequency SECAM 4.40625 MHz / 4.25 MHz
NTSC 3.58 MHz / 4.43 MHz
Teletext System TOP (German system)
FLOF (Fastext)
WST (Standard system)
Power Input AC220 V - AC240 V, 50 Hz
Power Consumption 132 W, Standby : 2.8 W
Picture Tube Visible size : 67.6 cm [measured diagonally] (H : 55.0 cm × V : 41.5 cm)
High Voltage 31.0 kV (+1 kV / -1.5 kV) (at zero beam current)
Speaker 13 cm × 6.5 cm oval type × 2
Audio Power Output 10 W + 10 W
Aerial Input Terminal 75 unbalanced, coaxial
EXT-1 / EXT-2 (Input / Output) 21-pin Euro connector (SCART socket × 2)
EXT-3 (Input) Video 1 V(p-p) 75 , RCA pin jack × 1
Audio (L/R) 500 mV(rms) (-4 dBs), High impedance, RCA pin jack × 2
Headphone Jack 3.5 mm stereo mini jack × 1
Remote Control Unit RM-C1502 (AA/R6 dry cell battery × 2)
Design & specifications are subject to change without notice.
1-2 (No.YA366)
SECTION 1
PRECAUTION
1.1 SAFETY PRECAUTIONS
(1) The design of this product contains special hardware, (8) When service is required, observe the original lead dress.
many circuits and components specially for safety Extra precaution should be given to assure correct lead
purposes. For continued protection, no changes should be dress in the high voltage circuit area. Where a short circuit
made to the original design unless authorized in writing by has occurred, those components that indicate evidence of
the manufacturer. Replacement parts must be identical to overheating should be replaced. Always use the
those used in the original circuits. Service should be manufacturer's replacement components.
performed by qualified personnel only. (9) Isolation Check (Safety for Electrical Shock Hazard)
(2) Alterations of the design or circuitry of the products should After re-assembling the product, always perform an
not be made. Any design alterations or additions will void isolation check on the exposed metal parts of the cabinet
the manufacturer's warranty and will further relieve the (antenna terminals, video/audio input and output terminals,
manufacturer of responsibility for personal injury or Control knobs, metal cabinet, screw heads, earphone jack,
property damage resulting therefrom. control shafts, etc.) to be sure the product is safe to operate
(3) Many electrical and mechanical parts in the products have without danger of electrical shock.
special safety-related characteristics. These a) Dielectric Strength Test
characteristics are often not evident from visual inspection The isolation between the AC primary circuit and all metal
nor can the protection afforded by them necessarily be parts exposed to the user, particularly any exposed metal
obtained by using replacement components rated for part having a return path to the chassis should withstand a
higher voltage, wattage, etc. Replacement parts which voltage of 3000V AC (r.m.s.) for a period of one second. (.
have these special safety characteristics are identified in . . . Withstand a voltage of 1100V AC (r.m.s.) to an
the parts list of Service manual. Electrical components appliance rated up to 120V, and 3000V AC (r.m.s.) to an
having such features are identified by shading on the appliance rated 200V or more, for a period of one second.)
schematics and by ( ) on the parts list in Service This method of test requires a test equipment not generally
manual. The use of a substitute replacement which does found in the service trade.
not have the same safety characteristics as the b) Leakage Current Check
recommended replacement part shown in the parts list of Plug the AC line cord directly into the AC outlet (do not use
Service manual may cause shock, fire, or other hazards. a line isolation transformer during this check.). Using a
(4) Don't short between the LIVE side ground and "Leakage Current Tester", measure the leakage current
ISOLATED (NEUTRAL) side ground or EARTH side from each exposed metal part of the cabinet, particularly
ground when repairing. any exposed metal part having a return path to the chassis,
Some model's power circuit is partly different in the GND. to a known good earth ground (water pipe, etc.). Any
The difference of the GND is shown by the LIVE : ( ) side leakage current must not exceed 0.5mA AC (r.m.s.).
GND, the ISOLATED (NEUTRAL) : ( ) side GND and However, in tropical area, this must not exceed 0.2mA AC
EARTH : ( ) side GND. (r.m.s.).
Don't short between the LIVE side GND and ISOLATED Alternate Check Method
(NEUTRAL) side GND or EARTH side GND and never Plug the AC line cord directly into the AC outlet (do not
measure the LIVE side GND and ISOLATED (NEUTRAL) use a line isolation transformer during this check.). Use
side GND or EARTH side GND at the same time with a an AC voltmeter having 1000 per volt or more
measuring apparatus (oscilloscope etc.). If above note will sensitivity in the following manner. Connect a 1500
not be kept, a fuse or any parts will be broken. 10W resistor paralleled by a 0.15µF AC-type capacitor
(5) If any repair has been made to the chassis, it is between an exposed metal part and a known good earth
recommended that the B1 setting should be checked or ground (water pipe, etc.). Measure the AC voltage
adjusted (See B1 POWER SUPPLY check). across the resistor with the AC voltmeter. Move the
(6) The high voltage applied to the picture tube must conform resistor connection to each exposed metal part,
with that specified in Service manual. Excessive high particularly any exposed metal part having a return path
voltage can cause an increase in X-Ray emission, arcing to the chassis, and measure the AC voltage across the
and possible component damage, therefore operation resistor. Now, reverse the plug in the AC outlet and
under excessive high voltage conditions should be kept to repeat each measurement. Any voltage measured must
a minimum, or should be prevented. If severe arcing not exceed 0.75V AC (r.m.s.). This corresponds to
occurs, remove the AC power immediately and determine 0.5mA AC (r.m.s.).
the cause by visual inspection (incorrect installation, However, in tropical area, this must not exceed 0.3V AC
cracked or melted high voltage harness, poor soldering, (r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
etc.). To maintain the proper minimum level of soft X-Ray
AC VOLTMETER
emission, components in the high voltage circuitry (HAVING 1000 /V,
including the picture tube must be the exact replacements OR MORE SENSITIVITY)
or alternatives approved by the manufacturer of the
complete product.
(7) Do not check high voltage by drawing an arc. Use a high
voltage meter or a high voltage probe with a VTVM. 0.15 F AC-TYPE
Discharge the picture tube before attempting meter
PLACE THIS PROBE
connection, by connecting a clip lead to the ground frame ON EACH EXPOSED
and connecting the other end of the lead through a 10k 1500 10W METAL PART
2W resistor to the anode button. GOOD EARTH GROUND
(No.YA366)1-3
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
ZOOM DIGITAL VNR
This function can change the screen size according to the This function cuts down the amount of noise in the original
picture aspect ratio. picture.
PICTURE MODE DigiPure
This function can adjust the picture settings automatically. This function uses the latest in digital technology to give you a
3D CINEMA SOUND natural-looking picture.
You can enjoy sounds with a wider ambience.
2.2 21-PIN EURO CONNECTOR (SCART) : EXT-1 / EXT-2
Pin No. Signal designation Matching value EXT-1 EXT-2
1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT)
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT)
4 AUDIO GND Used Used
5 GND (B) Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2)
7 B input 700mV(B-W), 75 Used Used
8 FUNCTION SW Low : 0V-3V Used Used
(SLOW SW) High : 8V-12V, High impedance
9 GND (G) Used Used
10 SCL / T-V LINK Not used Used (SCL2 / TV-LINK)
11 G input 700mV(B-W), 75 Used Used
12 SDA Not used Used (SDA2)
13 GND (R) Used Used
14 GND (YS) Used Not used
15 R / C input R : 700mV(B-W), 75 Used (R) Used (C2/R)
C : 300mV(P-P), 75
16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75 Used Used
17 GND (VIDEO output) Used Used
18 GND (VIDEO input) Used Used
19 VIDEO output 1V(P-P) (Negative sync), 75 Used (TV OUT) Used (LINE OUT)
20 VIDEO / Y input 1V(P-P) (Negative sync), 75 Used Used
21 COMMON GND Used Used
(P-P= Peak to Peak, B-W= Blanking to white peak)
[Pin assignment]
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
1-4 (No.YA366)
2.3 TECHNINAL INFORMATION
2.3.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin No. Pin name I/O Function Pin No. Pin name I/O Function
1 T-V LINK_OUT O Data output for T-V LINK 52 DRI5 I Not used
2 MP_SW O External memory pack control [ON = L] 53 DRI4 I Not used
3 SUB MUTE O Not used 54 DRI3 I Not used
4 TCK I Clock for JTAG interface 55 DRI2 I Not used
5 TDO O Data output for JTAG interface 56 DRI1 I Not used
6 TDI I Data input for JTAG interface 57 DRI0 I Not used
7 TMS I Control signal for JTAG interface 58 DGI7 I Not used
8 RESETQ I CPU reset [Reset = L] 59 DGI6 I Not used
9 E3_R I Audio input for EXT-3 60 DGI5 I Not used
10 E3_L I Audio input for EXT-3 61 DGI4 I Not used
11 D_R I Not used 62 DGI3 I Not used
12 D_L I Not used 63 DGI2 I Not used
13 E1_R I Audio input for EXT-1 64 DGI1 I Not used
14 E1_L I Audio input for EXT-1 65 DGI0 I Not used
15 E2_R I Audio input for EXT-2 66 DBI7 I Not used
16 E2_L I Audio input for EXT-2 67 DBI6 I Not used
17 VREFAU I Reference voltage setting 68 DBI5 I Not used
18 VSUP8.0AU I 8V power supply 69 DBI4 I Not used
19 GNDA - GND 70 DBI3 I Not used
20 SGND - GND 71 DBI2 I Not used
21 D_R_OUT O Audio output for EXT-2 72 DBI1 I Not used
22 D_L_OUT O Audio output for EXT-2 73 DBI0 I Not used
23 R_OUT O Audio output for EXT-1 74 GND3.3DRI - GND
24 L_OUT O Audio output for EXT-1 75 VSUP3.3DRI I 3.3V power supply
25 HEADPHONE_R O Not used 76 GND3.3COM - GND
26 HEADPHONE_L O Not used 77 VSUP3.3COM I 3.3V power supply
27 SPEAKER_R O Audio output for speaker/headphone 78 X'TALIN I 20.25MHz oscillation for CPU system clock
28 SPEAKER_L O Audio output for speaker/headphone 79 X'TALOUT O 20.25MHz oscillation for CPU system clock
29 SUBWOOFER O Not used 80 CLKOUT O Not used
30 VREFSIF I Reference voltage setting 81 VSO O Not used
31 SIF_IN+ I SIF for VHF/UHF tuner 82 HSO O Not used
32 SIF_IN- I SIF for VHF/UHF tuner 83 SCL1 O Clock for I2C bus (for various devices)
33 VSUP5.0 I 5V power supply 84 SDA1 I/O Data for I2C bus (for various devices)
34 GNDA - GND 85 GND3.3FL - GND
35 GND3.3DIG - GND 86 VSUP3.3FL I 3.3V power supply
36 VSUP3.3DIG I 3.3V power supply 87 AFC1 I AFT voltage for VHF/UHF tuner
37 SPDIF_OUT O Not used 88 IDTV_POWER O Not used
38 I2S_DA_IN I Not used 89 SCL0 O Clock for I2C bus (for E2PROM)
39 I2S_CL - Not used 90 SDA0 I/O Data for I2C bus (for E2PROM)
40 I2S_WS - Not used 91 AUDIO MUTE O Audio output muting [Muting = H]
41 I2S_DEL_OUT O Not used 92 SLEEP_ON/OFF O Power off by sleep timer [OFF = H]
42 I2S_DEL_IN I Not used 93 OSDV I V sync for OSD
43 I2S_DEL_CL - Not used 94 OSDH I H sync for OSD
44 I2S_DEL_WS - Not used 95 GND3.3IO1 - GND
45 VSUP3.3RAM I 3.3V power supply 96 VSUP3.3IO1 I 3.3V power supply
46 GND3.3RAM - GND 97 OSDCLK I Not used
47 DVS - Not used 98 OSDSW I Not used
48 DEN - Not used 99 POWER_G I Not used
49 DCLK - Not used 100 PROTECTER I Abnormality detection [Emergent = L]
50 DRI7 I Not used 101 POWER_ON/OFF O Main power on/off control [ON = L]
51 DRI6 I Not used 102 ROTATION O Screen tilt adjustment
(No.YA366)1-5
Pin No. Pin name I/O Function Pin No. Pin name I/O Function
103 OSDB1 O Not used 156 DRO1_7 O Not used
104 OSDB0 O Not used 157 DRO1_8 O Not used
105 ATT SW O Not used 158 DRO1_9 O Not used
106 REMOCON I Remote control sensor input [No input = H] 159 AGC I RF AGC voltage for VHF/UHF tuner
107 OSDG1 O Not used 160 KEY1 I Key scan for front control (CH+/CH-/MENU)
108 OSDG0 O Not used 161 E1_SLOW I EXT-1 SLOW detection
109 POW_LED O POWER ON indication [ON = L] 162 E2_SLOW I EXT-2 SLOW detection
110 LED_G O Not used 163 GND3.3DAC - GND
111 OSDR1 O Not used 164 VSUP3.3DAC I 3.3V power supply
112 OSDR0 O Not used 165 ROUT O R output for CRT
113 GND3.3IO1 - GND 166 GOUT O G output for CRT
114 VSUP3.3IO1 I 3.3V power supply 167 BOUT O B output for CRT
115 TXD O Not used 168 SVMOUT O Y signal for velocity scan modulation
116 RXD I Not used 169 VSUP1.8FE I 1.8V power supply
117 IRQ O Not used 170 VSUP3.3FE I 3.3V power supply
118 IDTV_RST O Not used 171 SC_YS1 I Ys input for EXT-1
119 HS_OUT O H drive 172 SC_B1 I B input for EXT-1
120 VS_OUT O V drive 173 SC_G1 I G input for EXT-1
121 PCLK2 O Not used 174 SC_R1 I R input for EXT-1
122 PCLK1 O Not used 175 SC_YS2 I Ys input for EXT-2
123 GND1.8DIG - GND 176 SC_B2 I B input for EXT-2
124 VSUP1.8DIG I 1.8V power supply 177 SC_G2 I G input for EXT-2
125 DBO1_0 O Not used 178 SC_R2/C I R input for EXT-2
126 DBO1_1 O Not used 179 VIN13 I Not used
127 DBO1_2 O Not used 180 VIN12 I Not used
128 DBO1_3 O Not used 181 D_CV I Not used
129 DBO1_4 O Not used 182 E3_CV I Video input for EXT-3
130 DBO1_5 O Not used 183 VIN8 I Not used
131 DBO1_6 O Not used 184 E1_CV I Video input for EXT-1
132 DBO1_7 O Not used 185 VSUP1.8FE I 1.8V power supply
133 VSUP3.3IO2 I 3.3V power supply 186 GNDA - GND
134 GND3.3IO2 - GND 187 SC_R2/C I C input for EXT-2
135 DBO1_8 O Not used 188 E2_CV/Y I Video/Y input for EXT-2
136 DBO1_9 O Not used 189 VIN3 I Not used
137 DGO1_0 O Not used 190 VIN2 I Not used
138 DGO1_1 O Not used 191 TV_CV I Video input for VHF/UHF tuner
139 DGO1_2 O Not used 192 VSUP3.3VO I 3.3V power supply
140 DGO1_3 O Not used 193 VOUT3 O Not used
141 DGO1_4 O Not used 194 VOUT2 O Not used
142 DGO1_5 O Not used 195 V2_OUT O Video output for EXT-2
143 DGO1_6 O Not used 196 GND3.3IO3 - GND
144 DGO1_7 O Not used 197 VSUP3.3IO3 I 3.3V power supply
145 DGO1_8 O Not used 198 656I0 I Not used
146 DGO1_9 O Not used 199 656I1 I Not used
147 DRO1_0 O Not used 200 656I2 I Not used
148 DRO1_1 O Not used 201 656I3 I Not used
149 GND3.3IO2 - GND 202 656I4 I Not used
150 VSUP3.3IO2 I 3.3V power supply 203 656I5 I Not used
151 DRO1_2 O Not used 204 656I6 I Not used
152 DRO1_3 O Not used 205 656I7 I Not used
153 DRO1_4 O Not used 206 656CLKI I Not used
154 DRO1_5 O Not used 207 656CLKO O Not used
155 DRO1_6 O Not used 208 TV_LINK_IN I Data input from T-V LINK
1-6 (No.YA366)
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE 3.1.8 REMOVING THE SPEAKER
3.1.1 REMOVING THE REAR COVER · Remove the REAR COVER.
(1) Unplug the power cord. · Remove the CHASSIS.
(2) Remove the 9 screws [A] and 5 screws [B]. (1) Remove the 4 screws [G].
(3) Withdraw the REAR COVER toward you. (2) Remove the SPEAKER.
(3) Remove the opposite SPEAKER by the same method.
3.1.2 REMOVING THE AV TERMINAL BOARD
· Remove the REAR COVER 3.1.9 CHECKING THE PW BOARD
(1) Remove the 2 screws [C]. · To check the backside of the PW Board.
(2) Remove the ANTENNA TERMINAL. (1) Pull out the CHASSIS. (Refer to REMOVING THE CHASSIS).
(3) Withdraw the AV TERMINAL BOARD toward you. (2) Remove the CONTROL BASE.
(3) Front side is turned down and a chassis is stood perpendicularly.
The check by the side of the solder side of the MAIN PWB and
3.1.3 REMOVING THE CHASSIS AC PWB is possible.
· Remove the REAR COVER
(1) Slightly raise the both sides of the CHASSIS by hand and CAUTION:
remove the 2 claws under the both sides of the CHASSIS · When erecting the CHASSIS, be careful so that there will be
from the front cabinet. no contacting with other PW Board.
(2) Withdraw the CHASSIS backward.(If necessary, take off · Before turning on power, make sure that the wire connector is
the wire clamp, connectors etc.) properly connected.
· When conducting a check with power supplied, be sure to confirm
that the CRT EARTH WIRE (BRAIDED ASS'Y) is connected to
3.1.4 REMOVING THE POWER SW PWB the CRT SOCKET PW board.
· Remove the REAR COVER.
· Remove the CHASSIS.
(1) Remove the 2 screws [D]. 3.1.10 WIRE CLAMPING AND CABLE TYING
(2) Remove the CONTROL BASE with the POWER SW PWB (1) Be sure to clamp the wire.
and FRONT CONTROL PWB. (2) Never remove the cable tie used for tying the wires together.
(3) Remove the POWER SW PWB from the CONTROL BASE. Should it be inadvertently removed, be sue to tie the wires
with a new cable tie.
3.1.5 REMOVING THE FRONT CONTROL PWB
· Remove the REAR COVER.
· Remove the CHASSIS.
(1) Remove the 2 screws [D].
(2) Remove the CONTROL BASE with the POWER SW PWB
and FRONT CONTROL PWB.
(3) Remove the 2 screws [E].
(4) Remove the FRONT CONTROL PWB from the CONTROL BASE.
3.1.6 REMOVING THE MAIN PWB
· Remove the REAR COVER.
· Remove the CHASSIS.
(1) Remove the 4 screws [F].
(2) Remove the MAIN PWB.
3.1.7 REMOVING THE AC PWB
· Remove the REAR COVER.
· Remove the CHASSIS.
(1) Remove the 2 claws.
(2) Remove the AC PWB.
(No.YA366)1-7
FRONT COVER
D
POWER SW PWB
CONTROL BASE
CRT SOCKET
PWB
E
FRONT CONTROL
PWB F
CLAW
SIGNAL PWB
SPEAKER AC PWB
C
MAIN PWB
G CLAW
CHASSIS
REAR COVER
ANTENNA TERMINAL
AV TERMINAL BOARD
POWER CORD
A
B
1-8 (No.YA366)
3.2 MEMORY IC REPLACEMENT
· This model uses the memory IC.
· This memory IC stores data for proper operation of the video and drive circuits.
· When replacing, be sure to use an IC containing this (initial value) data.
3.2.1 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Switch off the power and disconnect the power plug from the SERVICE MENU
AC outlet.
1.IF 2.V/C
2. Replace the memory IC
3.AUDIO 4.DEF
Be sure to use the memory IC written with the initial setting 5.VSM PRESET 6.STATUS
values. 7.SHIPPING(OFF)
3. Power on 1-7: SELECT i:EXIT
Connect the power plug to the AC outlet and switch on the
power.
4. System constant check and setting Fig.1
* It must not adjust without signal.
(1) Press the [INFORMATION] key and the [MUTING] key
SYETEM CONSTANT SET
of the REMOTE CONTROL UNIT simultaneously.
(2) The SERVICE MENU screen will be displayed (Fig. 1). MODEL=MR EURO(0.37)
(3) While the SERVICE MENU is displayed, press the E2PROM=V0.14
[INFORMATION] key and [MUTING] key simultaneously,
and the SYSTEM CONSTANT SET screen will be 1.DESTINATION:EU
displayed (Fig. 2). JVC MR EURO V00
(4) Check the setting values of the SYSTEM CONSTANT VCTP
SET. If the value is different, select the setting item with - + OK:STORE i:EXIT
the [FUNCTION / ] key, and set the correct value
with the [FUNCTION / ] key. Fig.2
(5) Press the [OK] key to memorize the setting value.
(6) Press the [INFORMATION] key twice, and return to the
normal screen. MUTING
5. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS and set the
receive channels (Channels Preset) as described.
6. User settings
Check the user setting items according to the given in page
later. Where these do not agree, refer to the OPERATING
INSTRUCTIONS and set the items as described. INFORMATION
7. SERVICE MODE setting OK
Verify what to set in the SERVICE MODE, and set whatever is FUNCTION
/
necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for
setting. FUNCTION
/
3.2.2 SYSTEM CONSTANT SETTING
Setting item Setting content Setting value
1.DESTINATION EU / EK / EI EU
2.PICTURE TILT YES / NO YES
(No.YA366)1-9
3.2.3 SETTINGS OF FACTORY SHIPMENT
3.2.3.1 BUTTON OPERATION 3.2.3.2 REMOTE CONTROL DIRECT OPERATION
Setting item Setting position Setting item Setting position
POWER Off CHANNEL PR1
CHANNEL PR1 VOLUME 10
VOLUME 10 ZOOM AUTO
3D CINEMA SOUND OFF
3.2.3.3 REMOTE CONTROL MENU OPERATION
(1) PICTURE SETTING (3) FEATURES
Setting item Setting position Setting item Setting position
PICTURE MODE BRIGHT SLEEP TIMER OFF
COLOUR TEMP. COOL CHILD LOCK OFF
FEATURES BLUE BACK ON
DIGITAL VNR AUTO
(4) SET UP
DigiPure AUTO
Setting item Setting position
COLOUR CREATION ON
AUTO PROGRAM TV channel automatically set
COLOUR SYSTEM TV : According to preset CH
EDIT/MANUAL PRESET CH only
EXT : AUTO
The others : BLANK
(2) SOUND SETTING LANGUAGE ENGLISH
Setting item Setting position PICTURE TILT Middle
BASS Centre DECODER(EXT-2) OFF
TREBLE +6 EXT SETTING
BALANCE Centre ID BLANK
HYPER SOUND OFF S-IN BLANK
3D CINEMA SOUND DUBBING TV EXT-2
SURROUND MID
BASS BOOST MID
(5) VSM PRESET TABLE
Setting value
Variable
Item PICTURE MODE COLOUR TEMP.
range
BRIGHT STANDARD SOFT COOL NORMAL WARM
1.CONTRAST -16~+16 +16 +5 -3 --- --- ---
2.BRIGHT -16~+16 0 0 0 --- --- ---
3.SHARP -16~+16 0 0 0 --- --- ---
4.COLOUR -16~+16 0 0 0 --- --- ---
5.HUE -16~+16 0 0 0 --- --- ---
1.DRIVE R -64~+63 --- --- --- -5 0 +6
2.DRIVE G -64~+63 --- --- --- -5 0 0
3.DRIVE B -64~+63 --- --- --- 0 0 0
1-10 (No.YA366)
3.2.4 SERVICE MODE SETING ITEMS
Setting item Setting value Setting item Setting value
1. IF --- 4. DEF 1. V-SHIFT
2. V/C 1. RGB BLK 2. V-SIZE
2. CUTOFF R 3. H-CENT
3. CUTOFF G 4. H-SIZE
4. CUTOFF B 5. TRAPEZ
5. DRIVE R 6. EW-PIN
6. DRIVE G 7. COR-UP
7. DRIVE B 8. COR-LO
8. BRIGHT 9. COR-UP-S
9. CONT. 10. COR-LO-S
10. COLOUR 11. ANGLE
11. HUE 12. BOW
12. SHARP 13. V-S.CR
13. SC ADJ 14. V-LIN
15. UP VLIN
16. LO VLIN
17. H COMP
18. PIN COMP
19. HC PARA DC
3. AUDIO 1. ERROR RATE 5. VSM PRESET BRIGHT/SOFT/STANDARD
[Do not adjust] 2. A2 IDNET 1. CONTRAST
3. STD RESULT 2. BRIGHT
4. SPATIAL EFFECT 3. SHARP
5. VIRTUAL EFFECT 4. COLOUR
6. BASS EFFECT 5. HUE
7. AMP LIMIT
8. HARMONIC COOL/WARM/NORMAL
9. LPF 1. DRIVE R
10. HPF 2. DRIVE G
11. HYPER EFFFECT H 3. DRIVE B
12. HYPER EFFFECT L
6. STATUS ---
[Do not adjust]
7.SHIPPING (OFF) ---
[Do not adjust]
(No.YA366)1-11
3.3 REPLACEMENT OF CHIP COMPONENT
3.3.1 CAUTIONS
(1) Avoid heating for more than 3 seconds.
(2) Do not rub the electrodes and the resist parts of the pattern.
(3) When removing a chip part, melt the solder adequately.
(4) Do not reuse a chip part after removing it.
3.3.2 SOLDERING IRON
(1) Use a high insulation soldering iron with a thin pointed end of it.
(2) A 30w soldering iron is recommended for easily removing parts.
3.3.3 REPLACEMENT STEPS
1. How to remove Chip parts 2. How to install Chip parts
[Resistors, capacitors, etc.] [Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers and (1) Apply solder to the pattern as indicated in the figure.
alternately melt the solder at each end.
(2) Grasp the chip part with tweezers and place it on the
solder. Then heat and melt the solder at both ends of the
chip part.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
[Transistors, diodes, variable resistors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
(1) Apply extra solder to each lead.
solder.
(3) First solder lead A as indicated in the figure.
SOLDER SOLDER
A
(2) As shown in the figure, push the part with tweezers and
B
alternately melt the solder at each lead. Shift and remove
the chip part.
C
(4) Then solder leads B and C.
A
B
NOTE :
After removing the part, remove remaining solder from the C
pattern.
1-12 (No.YA366)
SECTION 4
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION 4.3 MEASURING INSTRUMENT AND FIXTURES
(1) There are 2 ways of adjusting this TV : One is with the (1) DC voltmeter (or digital voltmeter)
REMOTE CONTROL UNIT and the other is the (2) Oscilloscope
conventional method using adjustment parts and (3) Signal generator
components. (Pattern generator : PAL / SECAM / NTSC)
(2) The adjustment using the REMOTE CONTROL UNIT is (4) Remote control unit
made on the basis of the initial setting values. The
setting values which adjust the screen to the optimum 4.4 ADJUSTMENT ITEMS
condition can be different from the initial setting CHECK ITEM
values. · B1 VOLTAGE check
(3) Make sure that connection is correctly made AC to AC · HIGH VOLTAGE check
power source. · IF VCO check
(4) Turn on the power of the TV and measuring instruments for
warming up for at least 30 minutes before starting FOCUS
adjustments. · FOCUS adjustment
(5) If the receive or input signal is not specified, use the most DEFLECTION CIRCUIT.
appropriate signal for adjustment. · V. POSITION adjustment
(6) Never touch the parts (such as variable resistors, · V. SIZE adjustment
transformers and condensers) not shown in the adjustment · H. POSITION adjustment
items of this service adjustment. · H. SIZE adjustment
· SIDE-PIN adjustment
4.2 PRESET SETTING BEFORE ADJUSTMENT · TRAPEZIUM adjustment
Unless otherwise specified in the adjustment items, preset the · UPPER/LOWER CORNER PIN adjustment
following functions with the REMOTE CONTROL UNIT. · PARALLELOGRAM(TILT) adjustment
· BOW adjustment
Item Preset value · V. S-SHAPE CORRECTION & V.LINEARITY adjustment
PICTURE MODE STANDARD VIDEO CIRCUIT
CONTRAST / BRIGHT / SHARP / COLOUR / HUE Centre · WHITE BALANCE adjustment
· SUB BRIGHT adjustment
COLOUR TEMP NORMAL
· SUB CONTRAST adjustment
DIGITAL VNR AUTO · SUB COLOUR adjustment
BASS / TREBLE / BALANCE Centre · SUB HUE adjustment
· COLOUR DECODER VCO adjustment
HYPER SOUND OFF
VSM PRESET SETTING
ZOOM REGULAR · VSM PRESET setting
SLEEP TIMER OFF
(No.YA366)1-13
4.5 ADJUSTMENT LOCATIONS
FRONT CONTROL PWB TOP POWER SW PWB FRONT
(SOLDER SIDE)
POWER LED
H B
F
W
FUSE RT
B
A
PW POWER SW
POWER CORD ROTATION COIL
SPEAKER(R)
SPEAKER(L)
DEG COIL
CN0SR
MAIN PWB
T K CN00T
CN0SL
DEG
FRONT FRONT
CN00H
W
AC PWB
CN00K
A
SIGNAL
PWB R
DEF. YOKE
CN002
TUNER
HV
F
HVT
CRT SOCKET PWB (SOLDER SIDE) CN001
IC701
X
TP-47B 5
TP-E CN00G
MEMORY IC 1
FOCUS
G SCREEN
R TOP 1 : TP-91(B1)
2 : NC
3 : X-RAY1
4 : X-RAY2
5 : TP-E ( )
1-14 (No.YA366)
4.6 TOOL OF SERVICE MODE OPERATION
Operate the SERVICE MODE with the REMOTE CONTROL UNIT.
4.6.1 SERVICE MODE ITEMS
With the SERVICE MODE, various adjustment can be made, and they are broadly classified in the following items of settings.
1.IF : This mode adjusts the setting values of the IF circuit.
2.V/C : This mode adjusts the setting values of the VIDEO circuit.
3.AUDIO : This mode adjusts the setting values of the MULTI-SOUND circuit. [Do not adjust]
4.DEF : This mode adjusts the setting values of the DEFLECTION circuit.
5.VSM PRESET : This mode adjusts the setting values of COOL, NORMAL and WARM. (VSM : Video Status Memory)
6.STATUS : This mode is shows the monitor of SOFT, TELETEXT, ASPECT, PROTECT, FLASH. [Do not adjust]
7.SHIPPING (OFF) : This mode is set at shipping. [Do not adjust]
4.6.2 BASIC OPERATION IN SERVICE MODE
4.6.2.1 HOW TO ENTER THE SERVICE MODE 4.6.2.2 SELECTION OF SUB MENU SCREEN
Press the [INFORMATION] key and [MUTING] key of the Press one of the CHANNEL number key with the remote control
REMOTE CONTROL UNIT simultaneously. Then SERVICE unit, and select the SUB MENU SCREEN from SERVICE
MODE screen will be displayed as shown figure. MODE.
SERVICE MENU 4.6.2.3 SETTING METHOD
1.IF
1.IF 2.V/C
[1. VCO] : It must not adjust without signal
3.AUDIO 4.DEF
5.VSM PRESET 6.STATUS (1) [1] key
7.SHIPPING(OFF) Select 1.IF.
(2) Check the arrow position between the ABOVE REF. and
1-7: SELECT i:EXIT BELOW REF.
(3) [INFORMATION] key
Return to the SERVICE MODE main manu screen.
Fig.1
2.V/C, 4.DEF and 5.VSM PRESET
(1) [2], [4] and [5]key
Select one from 2.V/C, 4.DEF, 5.VSM PRESET.
MUTING (2) [FUNCTION / ] key
Select setting items.
(3) [FUNCTION / ] key
Set the setting values of the setting items.
(4) [OK] key
Memorize the setting value.
(Before storing the setting values in memory, do not
press the CH, TV, POWER ON / OFF key. if you do, the
values will not be stored in memory.)
INFORMATION (5) [INFORMATION] key
OK Return to the SERVICE MODE main manu screen.
FUNCTION
3.AUDIO, 6.STATUS and 7.SHIPPING (OFF)
/
It is not requirement to adjustment.
FUNCTION
/ 4.6.2.4 MEMORIZE THE ADJUSTMENT DATA
When adjustment is completed, press the [OK] key to memorize
the adjustment value. If not to do it, adjustment data is not
memorized to the memory IC. And if exit the adjustment mode
before memorize the data, the adjustment value which you
change is canceled.
4.6.2.5 RELEASE OF SERVICE MODE
After completing the setting, return to the SERVICE MODE, then
again press the [INFORMATION] key.
Fig.2
(No.YA366)1-15
4.6.3 SERVICE MODE FLOW CHART
MAIN MENU SCREEN
SERVICE MENU
1.IF 2.V/C
3.AUDIO 4.DEF
5.VSM PRESET 6.STATUS
7.SHIPPING(OFF)
1-7: SELECT i:EXIT
1. V-SHIFT
2. V-SIZE
3. H-CENT 4. DEF 1. IF
4. H-SIZE
5. TRAPEZ
6. EW-PIN
DEF REGULAR 100Hzi VCO(CW) 216.00MHz
7. COR-UP
8. COR-LO 1.V-SHIFT + 8
9. COR-UP-S (28) TOO HIGH
10. COR-LO-S ABOVE REFERENCE
11. ANGLE JUST REFERENCE
12. BOW BELOW REFERENCE
13. V-S.CR TOO LOW
14. V-LIN - + OK:STORE i=EXIT
15. UP VLIN i=EXIT
16. LO VLIN
17. H COMP
18. PIN COMP
19. HC PARA DC
5. VSM PRESET 2. V/C
1. RGB BLK
2. CUTOFF R
VSM PRE