JVC AV-32T5BK, AV-32T5BR, AV-32T5SK, AV-32T5SP, AV-32T5SR Service Manual

Page 1
SERVICE MANUAL
COLOUR TELEVISION
YA26020053
AV-32T5SP, AV-32T5SK,
AV-32T5SR, AV-32T5BR,
BASIC CHASSIS
JW2
1
2
3
4
5
6
7
8
9
0
AV
MENU
P
TV OK
P
.T/L
F
TV
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.YA260
2005/3
Page 2
SPECIFICATION
Contents
Items
Dimensions ( W × H × D ) 86.4cm × 58.7cm × 55.0cm
Mass 52.0kg
TV RF System CCIR (I) CCIR (B/G, I, L)
Colour System PAL
NTSC3.58 / NTSC4.43 (Only EXT mode)
Stereo System NICAM (I) A2 (B/G) / NICAM (B/G, I, L)
Receiving Frequency
Intermediate Frequency
Colour Sub Carrier Frequency
Teletext System FLOF (Fastext)
Power Input AC220V - AC240V, 50Hz
Power Consumption 110W, Standby : 2.7W
Picture Tube Visible size : 76cm [measured diagonally] (H : 67.4cm × V : 38.4cm)
High Voltage 31.0kV (+1kV / -1.5kV) (at zero beam current)
Speaker 13cm × 6.5cm oval type × 2
Audio Power Output 10W + 10W
Aerial Input Terminal 75 unbalanced, coaxial
EXT-1 / EXT-2 / EXT-3 (Input / Output)
EXT-4 (Input) Video
Headphone Jack Stereo mini jack (Ø3.5mm × 1) Remote Control Unit RM-C1502 (AA/R6 dry cell battery × 2) [AV-32T5SK, AV-32T5SR, AV-32T5SP]
VHF --- 47MHz - 470MHz
UHF 470MHz - 862MHz
French
CATV
VIF 38.9MHz (I) 38.9MHz (B/G, I, L)
SIF 32.9MHz (6.0MHz :I) 33.4MHz (5.5MHz :B/G)
PAL 4.43MHz
SECAM --- 4.40625MHz / 4.25MHz
NTSC 3.58MHz / 4.43MHz
WST(Standard system)
21-pin Euro connector (SCART socket × 3)
1V(p-p) positive, negative sync provided, 75, RCA pin jack × 1
Audio
500mV(rms) (-4dBs), high impedance, RCA pin jack × 2
RM-C1502B (AA/R6 dry cell battery × 2) [AV-32T5BK, AV-32T5BR]
AV-32T5SK AV-32T5BK
AV-32T5SR AV-32T5BR
PAL SECAM NTSC3.58 / NTSC4.43 (Only EXT mode)
--- 116MHz - 172MHz 220MHz - 469MHz
33.9MHz (L')
32.9MHz ( 6.0MHz:I )
32.4MHz (6.5MHz :L)
TOP (German system) FLOF (Fastext) WST (Standard system)
AV-32T5SP
Design & specifications are subject to change without notice.
1-2 (No.YA260)
Page 3
SECTION 1
PRECAUTION

1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK]

(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) If any repair has been made to the chassis, it is
recommended that the B1 setting should be checked or adjusted (See B1 POWER SUPPLY check).
(6) The high voltage applied to the picture tube must conform
with that specified in Service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube must be the exact replacements 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. Discharge the picture tube before attempting meter connection, by connecting a clip lead to the ground frame
and connecting the other end of the lead through a 10k
2W resistor to the anode button.
(8) 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.
(9) 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 1000 sensitivity in the following manner. Connect a 1500
per volt or more
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
0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.3V AC (r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER (HAVING 1000 /V, OR MORE SENSITIVITY)
0.15 F AC-TYPE
PLACE THIS PROBE
1500 10W
GOOD EARTH GROUND
ON EACH EXPOSED ME TAL PAR T
(No.YA260)1-3
Page 4

1.2 SAFETY PRECAUTIONS [FOR UK]

(1) The design of this product contains special hardware and 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 product 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 product have special safety-related characteristics. These characteristics are often
not evident from visual inspection nor can the protection afforded by them necessary 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 the 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) The leads in the products are routed and dressed with ties, clamps, tubing’s, barriers and the like to be separated from live parts,
high temperature parts, moving parts and / or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling.
WARNING
(1) The equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage.
1-4 (No.YA260)
Page 5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

ZOOM
This function can change the screen size according to the picture aspect ratio.
T-V LINK
When you have a T-V LINK compatible VCR connected to the EXT-2 Terminal on the TV,it is easier to set up the VCR and to view videos.

2.2 MAIN DIFFERENCE LIST

Item AV-32T5SP AV-32T5SK AV-32T5SR AV-32T5BR AV-32T5BK
CABINET COLOUR Silver ←←Black POWER CORD EU 2-pin type UK 3-pin type ←←← TEXT/CLOSED CAPTION FLOF, WST, TOP FLOF, WST ←←←
PICTURE & TEXT YES NO NO NO NO
STAND ASSY NO YES ←←← REMOTE CONTROL UNIT RM-C1502 ←←RM-C1502B MAIN PWB SJW-1011A-U2 SJW-1911A-U2 SJW-1011A-U2 SJW-1911A-U2

2.3 21-PIN EURO CONNECTOR (SCART) : EXT-1/EXT-2/EXT-3

Pin No. Signal designation Matching value EXT-1 EXT-2 EXT-3
1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2) Used (R3)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used
4AUDIO GND UsedUsedUsed
5 GND (B) Used Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2) Used (L3)
7 B input 700mV
FUNCTION SW
8
(SLOW SW)
9 GND (G) Used Used Used
10 SCL / T-V LINK Not used
11 G input 700mV
12 SDA Not used Used (SDA2) Not used
13 GND (R) Used Used Used
14 GND (YS) Used Not used Not used
15 R / C input 16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75 Used Used Not used
17 GND (VIDEO output) Used Used Used
18 GND (VIDEO input) Used Used Used
19 VIDEO output 1V
20 VIDEO / Y input 1V
21 COMMON GND Used Used Used
Low : 0V-3V High : 8V-12V, High impedance
R : 700mV C : 300mV
(P-P)
(P-P)
, 75 Used Used Not used
(B-W)
, 75 Used Used Not used
(B-W)
, 75
(B-W)
, 75
(P-P)
(Negative sync), 75 Used (TV OUT) Used (LINE OUT) Not used (Negative sync), 75 Used Used Used
PICTURE MODE
This function can adjust the picture settings automatically.
HYPER SOUND
You can enjoy sounds with a wider ambience.
Used Used Used
Used
(SCL2 / TV-LINK)
Used (R) Used (C2/R) Used (C3)
Not 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
(No.YA260)1-5
Page 6

2.4 TECHNINAL INFORMATION

2.4.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin No.
10 XtalIn I System clock(4MHz) 74 Yout O Y(for 73pin) 11 XtalOut O System clock(4MHz) 75 Uout/INSSW2 I Ys(for EXT-1 Y/R-Y/B-Y insertion) 12 VssA1 -- GND 76 Vout/Swo1 -- Not used 13 Vguard I CRT NECK protection 77 INSSW3 I Ys(for EXT-2 Y/R-Y/B-Y insertion) 14 DecDig -- 1.8V 78 R3/Pr I EXT-2 R-Y 15 V5P1 I 5V 79 G3/Y I EXT-2 Y 16 Phi2 -- Not used 80 B3/Pb I EXT-2 B-Y 17 Phi1 -- Not used 81 Gnd3 -- GND 18 Gnd1 -- GND 82 V5P3 I 5V 19 SecPll -- Not used 83 BCL I Auto Beam / contrast 20 Dec8G -- Not used 84 BLKIN I Black current input (For Auto white balance) 21 Ewd/Avl O Parabola wave 85 Rout O Red (for CRT) 22 Vdb O V. Drive(-) 86 Gout O Green (for CRT) 23 Vda O V. Drive(+)(For side pin) 87 Bout O Blue (for CRT) 24 Vif1 I IF 88 V3.3A1 I 3.3V 25 Vif2 I IF 89 RefAdN -- Not used 26 Vsc -- Not used 90 V3.3RefAdP I 3.3V 27 Iref -- Not used 91 RefAd -- Not used 28 GndIF -- GND 92 GndA -- GND 29 Sif1 I SIF 93 V1.8A I 1.8V 30 Sif2 I SIF 94 V3.3A2 I 3.3V 31 Agc O AGC 95 VssAD -- GND 32 EHT I HV change control 96 V1.8ADC I 1.8V 33 Ssif/RefIn/Avl/RefOut O L'/Other SW [L':H] 97 REMOCON I Remote control 34 AudoIn5L I Not used 98 P10/Int1 I AV_LINK control 35 AudioIn5R I Not used 99 P11/TO O AV_LINK control 36 AudOutSL O Audio (Left) 100 V1.8C2 I 1.8V 37 AudOutSR O Audio (Right) 101 VssC2 -- GND 38 DecsDem -- Not used 102 P04/I2SWs -- Not used 39 QssO/AmO/AudeEm -- Not used 103 P03/I2SClk -- Not used 40 Gnd2 -- GND 104 P02/I2SDo2 -- Not used 41 PllIf -- Not used 105 P01/I2SDo1 -- Not used 42 SifAgc -- Not used 106 HP_DET I Head phone connection detection [Connect : L] 43 IfVo/FmRo/DvbO O Composite video detect 107 P13/T1 O Main power control [ON : H] 44 FmRo/DvbO -- Not used 108 SCL1 O I2C bus (clock) for AV SW, TUNER, VOLUME 45 V8AudioSwitches I 8V 109 SDA1 I/O I2C bus (data) for AV SW, TUNER, VOLUME 46 AgcSsif -- Not used 110 V3.3P I 3.3V 47 V5P2 I 5V 111 P20/TPwm O ROTATION 48 SVO/IfVo/Cvbsl -- Not used 112 P21/Pwm0 O S-CORRECTION CONTROL(PANORAMIC) 49 Audio4InL -- Not used 113 P22/Pwm1 O Audio muting [Muting : L] 50 Audio4InR -- Not used 114 P23/Pwm2 -- Not used 51 Y4/Cvbs4 I Composite video /Y 115 Protect I Protection detection for Low B short [Detect : H] 52 C4 I Chroma 116 P31/Adc1 O Lighting for POWER LED [ON : Soft RED] 53 Audio2InL -- Not used 117 V1.8C1 I 1.8V 54 Audio2InR -- Not used 118 DecV1V8 I 1.8V 55 Cvbs2/Y -- Not used 119 Key I Key scan front control 56 Audio3InL -- Not used 120 AGC I AGC 57 Audio3InR -- Not used 121 VssC1+P1 -- GND 58 Y3/Cvbs -- Not used 122 P24/PW3 -- Not used 59 C3 -- Not used 123 P25/PWM4 -- Not used 60 AudOutLsL -- Not used 124 V1.8C3 I 1.8V 61 AudOutLsR -- Not used 125 VssC3 -- GND 62 AudOutHpL -- Not used 126 Power DET I Main power detection [ON:H] 63 AudOutHpR -- Not used 127 P14/RX I/O I2C bus (data) for generally 64 CVBSO/PIP -- Not used 128 P15/TX O I2C bus (clock) for generally
Pin name I/O Function
1 VssP2 -- GND 65 SVM O Scan velocity modulation 2 VssC4 -- GND 66 FbiSo I H pulse (Flyback pulse) 3 V1.8C4 I 1.8V 67 Hout O H drive 4 V3.3A3 I 3.3V 68 VssComb -- GND 5 VrefP_Sdac I 3.3V 69 V5Comb I 5V for comb filter 6 VrefN_Sdac -- GND 70 Vin/R2/Pr I EXT-1 R-Y 7 VrefP_Sdac I 3.3V 71 Uin/B2/Pb I EXT-1 B-Y 8 VrefN_Sdac -- GND 72 Yin/G2/Y I EXT-1 Y 9 VrefP_Sdac I 3.3V 73 Ysync I Y for SyncSep
Pin No.
Pin name I/O Function
1-6 (No.YA260)
Page 7
SECTION 3
DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER
(1) Unplug the power cord. (2) Remove the 13 screws [A], then withdraw the REAR
COVER toward you.
3.1.2 REMOVING THE SIDE CONTROL JACK ASS'Y
• Remove the REAR COVER. (1) Remove the 1 screw [B]. (2) Slightly shift the SIDE CONTROL JACK ASS'Y to rear side
and remove the 1 claws under the SIDE CONTROL JACK ASS'Y.
3.1.3 REMOVING THE SIDE CONTROL PWB
• Remove the REAR COVER.
• Remove the SIDE CONTROL JACK ASSY. (1) Remove the 2 screws [C]. (2) Remove the 2 claws from back side of the SIDE CONTRL
JACK ASS'Y, then pull out the SIDE CONTROL PWB.
3.1.4 REMOVING THE CHASSIS BASE
• Remove the REAR COVER. (1) Slightly raise the both sides of the chassis by hand and
remove the 2 claws under the both sides of the CHASSI S BASE from the front cabinet.
(2) Withdraw the CHASSIS backward.
(If necessary, take off the wire clamp, connectors etc.)
3.1.5 REMOVING THE AV TERMINAL BOARD
• Remove the REAR COVER. (1) Remove the 2 screws [D]. (2) Remove the 2 claws under the CHASSIS, then remove the
AV TERMINAL BOARD.
3.1.6 REMOVING THE SPEAKER
• Remove the REAR COVER.
• Remove the CHASSIS BASE. (1) Remove the 4 screws [E], then remove the SPEAKER. (2) Follow the same steps when removing the other hand
MAIN SPEAKER.
3.1.7 CHECKING THE PW BOARD
• To check the back side of the PW Board. (1) Pull out the CHASSIS BASE. (Refer to REMOVING THE
CHASSIS BASE).
(2) Erect the CHASSIS BASE vertically with the HVT side
facing up so that you can easily check the back side of the PW board.
CAUTION:
• When erecting the CHASSIS BASE, be careful so that there
will be no contacting with other PW Board.
• Before turning on power, make sure that the wire connector
is properly connected.
• When conducting a check with power supplied, be sure to
confirm that the CRT EARTH WIRE (BRAIDED ASS'Y) is connected to the CRT SOCKET PWB.
3.1.8 WIRE CLAMPING AND CABLE TYING
(1) Be sure to clamp the wire. (2) Never remove the cable tie used for tying the wires
together. Should it be inadvertently removed, be sure to tie the wires with a new cable tie.
(No.YA260)1-7
Page 8
SPEAKER
CRT SOCKET PWB
SPEAKER
E
FRONT CONTROL PWB
E
CONTROL BASE
POWER & DEF PWB
Claw
CHASSIS BASE
B
C
SIDE CONTROL PWB
Claw
SIDE CONTROL BASE
SIDE CONTROL JACK ASSY
REAR COVER
Claw
MAIN PWB
AV JACK PWB
POWER CORD
AV TERMINAL BOARD
D
Claw
1-8 (No.YA260)
A
Fig.1
Page 9
3.1.9 REMOVING THE CRT
NOTE:
• Replacement of the CRT should be performed by 2 or more persons.
• After removing the REAR COVER, CHASSIS etc.,
(1) Putting the CRT change table on soft cloth, the CRT
change table should also be covered with such soft cloth (shown in Fig. 2).
(2) While keeping the surface of CRT down, mount the TV set
on the CRT change table balanced will as shown in Fig. 2.
(3) Remove 4 screws marked by arrows with a box type
screwdriver as shown in Fig. 3.
NOTE:
Since the cabinet will drop when screws have been removed, be sure to support the cabinet with hands.
(4) After 4 screws have been removed, put the cabinet slowly
on cloth (At this time, be carefully so as not to damage the front surface of the cabinet) shown in Fig. 4.
NOTE:
• The CRT should be assembled according to the opposite sequence of its dismounting steps.
• The CRT change table should preferably be smaller that the CRT surface, and its height be about 35cm.
CRT CHANGE TABLE
CLOTH
CRT CHANGE TABLE
Fig.2
CRT
Fig.3
APPROX. 35cm
BOX TYPE SCREW DRIVER
CRT
CABINET
CRT CHANGE TABLE
Fig.4
COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.
Subsequent to replacement of the CRT and HV transformer or repair of the anode cap, etc. by dismounting them, be sure to coat silicon grease for electrical insulation as shown in Fig.5.Wipe around the anode button with clean and dry cloth. (Fig.5)Coat silicon grease on the section around the anode button. At this time, take care so that any silicon greases dose not sticks to the anode button. (Fig.6)
Silicon grease product No. KS - 650N
CRT
Anode button
Approx. 20mm (Do not coat grease on this section
Silicon grease should be coated by 5mm or more from the outside diameter of anode cap.
Silicon grease
coating
Fig.5
Anode button (No sticking of silicon grease)
Fig.6
Coating position of silicon grease
Anode cap
(No.YA260)1-9
Page 10

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 AC outlet.
2. Replace the memory IC
Be sure to use the memory IC written with the initial setting values.
3. Power on
Connect the power plug to the AC outlet and switch on the power.
4. System constant check and setting
* It must not adjust without signal.
(1) Press the [INFORMATION] key and the [MUTING] key
of the REMOTE CONTROL UNIT simultaneously. (2) The SERVICE MODE screen of Fig. 1 will be displayed. (3) While the SERVICE MODE is displayed, press the
[INFORMATION] key and [MUTING] key simultaneously,
and the SYSTEM CONSTANT SET screen of Fig. 2 will
be displayed. (4) Refer to the "SYSTEM CONSTANT SETTING", and
check the setting items. Where these differ, select the
addres with the [FUNCTION /] key and adjust it with
the [FUNCTION /] keys. (The letter of the selected
item is displayed in yellow.) (5) Setup will become effective if the main power is shut off.
5. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.
MUTING
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.
7. SERVICE MODE setting
Verify what to set in the SERVICE MODE, and set whatever is necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.
INFORMATION
FUNCTION
/
SERVICE MENU
1. IF 2. V/C
3. AUDIO 4. DEF
5. VSM PRESET 6. VPS
7. SHIPPING (OFF)
MODEL=JW2 EURO (XXXXX)
Fig.1
Address
EEP EDIT (LAST MEMORY) TOP ADDRESS=000H
00 01 02 03 04 05 06 07 8F 00 FE FF FF FF FF FF
08 09 0A 0B 0C 0D 0E 0F FF 01 BB FC 1F F9 FF FF
Setting data
Fig.2
1
4
7
P
TV OK
P
.T/L
F
Do not adjust
2
3
5
6
8
9
0
AV
MENU
MENU
FUNCTION
/
3.2.2 SYSTEM CONSTANT SETTING
Address
AV-32T5SK AV-32T5SP AV-32T5SR AV-32T5BR AV-32T5BK
00 B7 FF F7 F7 B7
01 00 02 01 01 00
1-10 (No.YA260)
TV
Setting data
Page 11
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
POWER Off
CHANNEL PR1
VOLUME 10
3.2.3.3 REMOTE CONTROL MENU OPERATION
(1) PICTURE
Setting item Setting position
PICTURE MODE STANDARD
CHANNEL PR1
VOLUME 10
ZOOM PANORAMIC
HYPER SOUND OFF
HYPER SOUND OFF
(3) FEATURES
Setting item Setting position
Setting item Setting position
COLOUR TEMP. NORMAL
SLEEP TIMER OFF
FEATURES
AUTO VNR AUTO
COLOUR SYSTEM TV According to preset CH
EXT AUTO
4:3 AUTO ASPECT PANORAMIC
(2) SOUND
Setting item Setting position
STEREO / I•II Stereo sound
BASS -2
TREBLE +2
BALANCE Centre
(5) VSM PRESET TABLE
Item
1.BRIGHT -16 - +16 0 0 0 --- --- ---
2.CONT -16 - +16 +12 +10 +2 --- --- ---
3.COLOUR -16 - +16 +6 0 -2 --- --- ---
4.SHARP -16 - +16 0 0 -2 --- --- ---
5.HUE -16 - +16 0 0 0 --- --- ---
1.R DRIVE -63 - +63 --- --- --- -7 0 +5
2.G DRIVE -63 - +63 --- --- --- 0 0 0
3.B DRIVE -63 - +63 --- --- --- +7 0 -5
Variable
range
PICTURE MODE COLOUR TEMP.
BRIGHT STANDARD SOFT COOL NORMAL WARM
BLUE BACK ON
CHILD LOCK OFF
(4) SET UP
AUTO PROGRAM TV channel automatically set
EDIT/MANUAL PRESET CH only
LANGUAGE ENGLISH
DECODER (EXT-2) OFF
EXT SETTING ID BLANK
PICTURE TILT MIDDLE
Setting item Setting position
Setting item Setting position
The others : BLANK
S-IN BLANK
DUBBING EXT-1 EXT-2
Setting value
(No.YA260)1-11
Page 12
3.2.4 SERVICE MODE SETING ITEMS
Setting item Setting value Setting item Setting value
1. IF 1. VCO
2. DELAY POINT
2. V/C 1. SCREEN
2. CUTOFF R / G
3. WDR R / G / B
4. BRIGHT
5. CONT.
6. COLOUR
7. HUE
8. BLACK OFFSET B-Y
9. SHARP
10. Y DELAY
11. TINT DVD
12. RGB BLK
3. AUDIO [Do not adjust]
1. DCX0 ADJ.
2. NICAM LOWER ERRLIM
3. NICAM UPPER ERRLIM
4. A2 ID THR
4. DEF 1. V-SHIFT
2. V-SLOPE
3. V-SIZE
4. H-CENT
5. H-SIZE
6. TRAPEZ
7. EW-PIN
8. COR-UP
9. COR-LO
10. ANGLE
11. BOW
12. V.S-CR
13. V.LIN
5. VSM PRESET BRIGHT/SOFT/STANDARD
1. BRIGHT
2. CONT.
3. COLOUR
4. SHARP
5. HUE
COOL/WARM/NORMAL
1. R DRIVE
2. G DRIVE
3. B DRIVE
6. VPS [Do not adjust]
7.SHIPPING (OFF) [Do not adjust]
VPS PDC WSS SN
---
1-12 (No.YA260)
Page 13

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.]
(1) As shown in the figure, push the part with tweezers and
alternately melt the solder at each end.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
SOLDER
SOLDER
[Resistors, capacitors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(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.
[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
solder.
(3) First solder lead A as indicated in the figure.
(2) As shown in the figure, push the part with tweezers and
alternately melt the solder at each lead. Shift and remove the chip part.
NOTE :
After removing the part, remove remaining solder from the pattern.
A
B
C
(4) Then solder leads B and C.
A
B
C
(No.YA260)1-13
Page 14
SECTION 4
ADJUSTMENT

4.1 ADJUSTMENT PREPARATION

(1) There are 2 ways of adjusting this TV : One is with the
REMOTE CONTROL UNIT and the other is the conventional method using adjustment parts and components.
(2) The adjustment using the REMOTE CONTROL UNIT is
made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
(3) Make sure that connection is correctly made AC to AC
power source.
(4) Turn on the power of the TV and measuring instruments for
warming up for at least 30 minutes before starting adjustments.
(5) If the receive or input signal is not specified, use the most
appropriate signal for adjustment.
(6) Never touch the parts (such as variable resistors,
transformers and condensers) not shown in the adjustment items of this service adjustment.

4.2 PRESET SETTING BEFORE ADJUSTMENT

Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE CONTROL UNIT.
Item Preset value
PICTURE MODE STANDARD
COLOUR TEMP. NORMAL
BASS / TREBLE / BALANCE Centre
ZOOM FULL
SLEEP TIMER OFF

4.3 MEASURING INSTRUMENT AND FIXTURES

(1) DC voltmeter (or digital voltmeter) (2) Oscilloscope (3) Signal generator
(Pattern generator : PAL / SECAM / NTSC)
(4) Remote control unit

4.4 ADJUSTMENT ITEMS

CHECK ITEM
• B1 VOLTAGE check
• HIGH VOLTAGE check
• IF VCO check
FOCUS
• FOCUS adjustment
DEFLECTION CIRCUIT
• V. POSITION adjustment
• V. SIZE adjustment
• H. POSITION adjustment
• H. SIZE adjustment
• SIDE-PIN adjustment
• TRAPEZIUM adjustment
• CORNER adjustment
• ANGLE adjustment
• BOW adjustment
• V. S-SHAPE CORRECTION & V.LINEARITY adjustment
VIDEO CIRCUIT
• WHITE BALANCE adjustment
• SUB BRIGHT adjustment
• SUB CONTRAST adjustment
• SUB COLOUR adjustment
• SUB HUE adjustment
• SECAM BLACK OFFSET adjustment
VSM PRESET SETTING
• VSM PRESET setting

4.5 ADJUSTMENT LOCATIONS

1-14 (No.YA260)
Page 15
HVT
SIDE CONTROL PWB
FRONT
K
F
TOP
FRONT
FRONT CONTROL PWB
B
POWER CORD
PW
W
SPEAKER
LR
S
AV JACK PWB
FRONT
MAIN PWB
CN001
S
CN008
POWER & DEF PWB
W
DEG
DEG COIL
K
B
CN004
TUNER
F
CN003
CN009
DEF. YOKE
HV
HVT
X
1
5
CRT SOCKET PWB
TP-47R
TP-47B
TP-47G
CN3008
(SOLDER SIDE)
TP-E
CN3009
FOCUS 1
FOCUS 2
SCREEN
1 : TP-91(B1) 2 : TP-E 3 : X-RAY1 4 : X-RAY2
( )
5 : TP-E
(No.YA260)1-15
Page 16

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 IF circuit.
2.V/C This mode adjusts the VIDEO circuit
3.AUDIO This mode adjusts the AUDIO circuit. [Do no adjust]
4.DEF This mode adjusts the DEFLECTION circuit.
5.VSM PRESET This mode sets the VSM (Video Status Memory) data.
6.VPS This mode shows the monitor of the VPS, PDC, WSS and SN. [Do not adjust]
7.SHIPPING (OFF) This mode initialize the data for factory shipment. [Do no adjust]
4.6.2 BASIC OPERATION IN SERVICE MODE
4.6.2.1 HOW TO ENTER THE SERVICE MODE
Press the [INFORMATION] key and [MUTING] key of the REMOTE CONTROL UNIT simultaneously. Then SERVICE MODE screen will be displayed as shown figure.
4.6.2.2 SELECTION OF SUB MENU SCREEN
Press one of the CHANNEL number key with the remote control unit, and select the SUB MENU SCREEN from SERVICE MODE.
MUTING
INFORMATION
FUNCTION
/
SERVICE MENU
1. IF
3. AUDIO
5. VSM PRESET
7. SHIPPING(OFF)
1
4
7
TV OK
Fig.1
2
5
8
0
P
P
.T/L
F
AV
2. V/C
4. DEF
6. VPS
3
6
9
MENU
MENU
FUNCTION
/
4.6.2.3 SETTING METHOD
1.IF
[1. VCO] : It must not adjust without signal
(1) [1] key
Select 1.IF.
(2) [1] key
Select 1.VCO(CW). Check the arrow position between the ABOVE REF. and BELOW REF.
(3) [INFORMATION] key
Return to the SERVICE MODE main manu screen.
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.
(2) [FUNCTION /] key
Select setting items.
(3) [FUNCTION /] key
Set the setting values of the setting items.
(4) [MENU] 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.)
(5) [INFORMATION] key
Return to the SERVICE MODE main manu screen.
3.AUDIO, 6.VPS and 7.SHIPPING (OFF)
It is not requirement to adjustment.
1-16 (No.YA260)
TV
Fig.2
4.6.2.4 MEMORIZE THE ADJUSTMENT DATA
When adjustment is completed, press the [MENU] 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.
Page 17
4.6.3 SERVICE MODE FLOW CHART
SERVICE MENU
SERVICE MENU
1. IF 2. V/C
3. AUDIO 4. DEF
5. VSM PRESET 6. VPS
7. SHIPPING (OFF)
1. V-SHIFT
2. V-SLOPE
3. V-SIZE
4. H-CENT
5. H-SIZE
6. TRAPEZ
7. EW-PIN
8. COR-UP
9. COR-LO
10. ANGLE
11. BOW
12.V.S-CR
13.V.LIN
PICTURE MODE
BRIGHT STANDARD SOFT
1. BRIGHT
2. CONT
3. COLOUR
4. SHARP
5. HUE
COLOUR TEMP
COOL NORMAL WARM
1. R DRIVE
2. G DRIVE
3. B DRIVE
4. DEF
DEF FULL 50Hz
1. V-SHIFT
5. VSM PRESET
VSM PRESET BRIGHT
1.BRIGHT
6.VPS
VPS PDC 8/30/1
WSS SN
Do not adjust
(---)
H
=㧖㧖㧖㧖
H
=㧖㧖㧖㧖
H
㧖㧖㧖㧖
H
=㧖㧖㧖㧖 =㧖㧖
IF SERVICE MENU
1. VCO
2. DELAY POINT
2. V/C
1. SCREEN
3. AUDIO
AUDIO
PAV/C AUTO L
HBC WBC
Do not adjust
1.VCO1.IF
VCO (CW) ** , ** MHz
TOO HIGH ABOVE REFERENCE JUST REFERENCE BELOW REFERENCE TOO LOW
2.DELAY POINT
DELAY POINT
AGC TAKE OVER **
1. SCREEN
2. CUTOFF R/G
3. WDR R/G/B
4. BRIGHT
5. CONT.
6. COLOUR
7. HUE
8. BLACK OFFSET B-Y
9. SHARP
10. Y DELAY
11. TINT DVD
12. RGB BLK
Do not adjust
1. DCX0 ADJ. = NOT NICAM
0002 0009 000A
1. DCX0 ADJ.
2.
NICAM LOWER ERRLIM
3. NICAM UPPER ERRLIM
4. A2 ID THR
(No.YA260)1-17
Page 18

4.7 INITIAL SETTING VALUE OF SERVICE MODE

(1) Adjustment of the SERVICE MODE is made on the basis of the initial setting values. However, the new setting values which
displays on the screen in its optimum condition may differ from the initial setting value. (2) Do not change the initial setting values of the items not listed in “ADJUSTMENT PROCEDURE”. (3) “---” is impossible to adjust or not requirement to adjustment.
4.7.1 [2. V/C]
VIDEO
Setting value
Setting value
SRF
VIDEO
RGB
S
RGB
Setting item
2. CUT OFF RED -63 - +63 0 0 0 0 0
GREEN -63 - +63 0 0 0 0 0
3. WDR RED -63 - +63 0 0 0 0 -5
GREEN -63 - +63 0 0 0 0 0
BLUE -63 - +63 0 0 0 0 -5
4. BRIGHT -63 - +63 0 0 0 0 0
5. CONT. -63 - +63 -10 -10 -10 -10 0
6. COLOUR -63 - +63 0 0 0 0 -3
7. HUE -63 - +63 --- --- 0 0 ---
8. BLACK OFFSET B-Y 0 - 3 --- 3 --- --- ---
Setting item
9. SHARP -63 - +63+5+5+5+5+5+5+5+5 +5
Setting item
10. Y DELAY0 - +15+5+3+5+5+3+5+5+3+5+5+3+5 ---
Variable
range
RF
Variable
range
Variable
range
PAL SECAM NTSC NTSC4.43
VIDEO
SRF
PAL SECAM NTSC NTSC4.43 RGB
PAL SECAM NTSC NTSC4.43
RF VIDEO RF VIDEO RF VIDEO RF VIDEO
Setting value
VIDEO
SRF
Setting item
11. TINT DVD -63 - +63 -11 -11 -11 -11 -11
12. RGB BLK ---0000---
4.7.2 [3. AUDIO] [Do not adjust]
Setting item
1. DCXO ADJ. --- F0
2. NICAM LOWER ERRLIM 00H - FFH 6F
3. NICAM UPPER ERRLIM 00H - FFH B0
4. A2 ID THR 00H - FFH 00
Variable
range
Variable
range
PAL SECAM NTSC NTSC4.43 RGB
Setting value
Setting value
1-18 (No.YA260)
Page 19
4.7.3 [4. DEF]
Setting item
1.V-SHIFT -32 - +31+0[-4][±0]
2.V-SLOPE -32 - +31 -10 [±0] [±0] [±0] [-4] [±0] [±0] [±0] [±0] [±0] [±0] [±0]
3.V-SIZE -32 - +31 -6 ±0 +5 +2 +24 ±0 +12 ±0 +1 ±0 [-32] [±0]
4.H-CENT -32 - +31 +15 ±0 ±0 ±0 ±0 ±0 +1 ±0 -5 ±0 [+13] [-6]
5.H-SIZE -32 - +31 +15 ±0 ±0 ±0 ±0 ±0 -11 ±0 +5 ±0 [+4] [±0]
6.TRAPEZ -32 - +31 ±0 ±0 ±0 ±0 -3 ±0 +1 ±0 ±0 ±0 [±0] [±0]
7.EW-PIN -32 - +31 -15 +1 +1 ±0 +1 ±0 +1 ±0 ±0 ±0 [±0] [±0]
8.COR-UP -32 - +30[±0][±0]
9.COR-LO -32 - +30+0[±0][±0]
10.ANGLE -32 - +30[±0][±0]
11.BOW -32 - +30[±0][±0]
12.V.S-CR -32 - +31 -14 -3 +6 ±0 +8 ±0 ±0 ±0 ±0 ±0 [±0] [±0]
13.V.LIN -32 - +31 -5 ±0 ±0 ±0 +16 ±0 ±0 ±0 ±0 ±0 [±0] [±0]
NOTE: [ ] is fixed values.
4.7.4 [5. VSM PRESET]
Item
1.BRIGHT -16 - +16 0 0 0 --- --- ---
2.CONT -16 - +16 +12 +10 +2 --- --- ---
3.COLOUR -16 - +16 +6 0 -2 --- --- ---
4.SHARP -16 - +16 0 0 -2 --- --- ---
5.HUE -16 - +16 0 0 0 --- --- ---
1.R DRIVE -63 - +63 --- --- --- -7 0 +5
2.G DRIVE -63 - +63 --- --- --- 0 0 0
3.B DRIVE -63 - +63 --- --- --- +7 0 -5
Variable
range
Variable
range
FULL PANORAMIC SUBTITLE 14:9 ZOOM REGULAR COMPRESS
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
PICTURE MODE COLOUR TEMP.
BRIGHT STANDARD SOFT COOL NORMAL WARM
Initial setting value
Setting value
(No.YA260)1-19
Page 20

4.8 ADJUSTMENT PROCEDURE

4.8.1 CHECK ITEM
Item
B1 VOLTAGE DC voltmeter
Measuring
instrument
X connector
1-pin:TP-91(B1) Remote control unit
HIGH VOLTAGE HV voltmeter
Remote
5-pin:TP-E
[POWER & DEF PWB]
CRT anode
Chassis GND control unit
IF VCO Remote
control unit
IF SERVICE ME
1. VCO
2. DELAY POINT
NU
Test point Adjustment part Description
[2.V/C]
12.RGB BLK
(1) Receive the any broadcast. (2) Select 2. V/C from the SERVICE MODE. (3) Select < 12. RGB BLK >. (4) Press the [FUNCTION] key to find the cut off
screen (Black screen). (5) Connect a DC voltmeter to 1-pin and 5-pin. (6) Make sure that the voltage is DC143V ± 2.0V. (7) Press the [FUNCTION] key to return to
SERVICE MODE.
[2.V/C]
12.RGB BLK
(1) Receive the any broadcast. (2) Select 2. V/C from the SERVICE MODE. (3) Select < 12. RGB BLK >. (4) Press the [FUNCTION] key to find the cut off
screen (Black screen). (5) Connect a HV voltmeter to CRT ANODE and
chassis GND. (Ground side is connected previously) (6) Make sure that the voltage is DC 31.0kV (+1kV/-1.5kV). (7) Press the [FUNCTION] key to return to
SERVICE MODE.
NOTE:
Remove the probe before removing the earth clip.
[1.IF]
1.VCO
• Under normal conditions, no adjustment is required.
• It must not adjust without broadcast signal. (1) Receive the any broadcast.
VCO( CW)
****
MHz
(2) Select 1.IF from the SERVICE MODE. (3) Select < 1.VCO >.
TOO HIGH ABOVE REF JUST REF BELOW REF TOO LOW
(4) Check the "" position between the ABOVE REF.
and BELOW REF.
4.8.2 FOCUS
Item
Measuring
instrument
FOCUS Signal
generator
1-20 (No.YA260)
(A)
Test point Adjustment part Description
FOCUS 1 VR FOCUS 2 VR
[In HVT]
(1) Receive the crosshatch signal. (2) Set the ZOOM mode to FULL. (3) By turning the FOCUS 2 VR, adjust the picture so that
the (A) part vertical line may become thinnest.
(4) By turning the FOCUS 1 VR, adjust the picture so
that the (A) part horizontal line may become uniform at the line centre and its periphery.
(5) Make sure that when the screen is darkened, the
lines remain in good focus.
HVT
FOCUS 1 FOCUS 2 SCREEN
Page 21
4.8.3 DEFLECTION CIRCUIT
There are 6 aspect modes ( 1.FULL, 2.PANORAMIC 3.SUBTITLE, 4.14 : 9 ZOOM, 5.REGULAR, 6.COMPRESS) of the adjustment. Depending upon the kind of signals.
NOTE :
• At first the adjustment in 50Hz FULL mode should be done, then the data for the other aspect mode is corrected in the respective value at the same time. And confirm the deflection adjustment initial setting value in 60Hz (NTSC EXT mode) FULL mode. If the adjustment in 50Hz each aspect mode has been done and stored, the data for the same aspect modes in 60Hz is corrected in the respective value. Only the data for the other aspect mode in 60Hz is corrected for itself.
Item
Measuring
instrument
V. POSITION Signal
generator
Remote control unit
V. SIZE Signal
generator
Remote control unit
Vertical
screen
size
Test point Adjustment part Description
[4.DEF]
1.V- SHIFT
(1) Receive the circle pattern signal of vertical frequency
50Hz (PAL). (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 1.V-SHIFT >. (5) Adjust vertical position to make A = B.
(A)
(6) Check the adjustment value above in other zoom
mode. If it is a wrong adjustment, readjust in FULL
mode and adjust by < 1.V-SHIFT >. (7) Press the [MENU] key and memorize the set value.
(B)
[4.DEF]
3.V-SIZE
(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 3.V-SIZE >. (5) Adjust to make sure that the vertical screen size of
the picture size is in the bellow table. (6) Make sure that the vertical screen size of the each
ASPECT mode is in the below table. (7) Press the [MENU] key and memorize the set value. (8) Input a NTSC VIDEO signal (60Hz) from the EXT
Picture
size
100%
terminal, and make sure that the vertical screen
size is in the table below.
(9)
ASPECT MODE
FULL
PANORAMIC
SUBTITLE
14:9 ZOOM REGULAR
H. POSITION Signal
generator
Remote control unit
(A) (B)
[4.DEF]
4.H-CENT
SCREEN TOP
SCREEN BOTTOM
92%
92%
87%
87%
70%
83%
80%
80%
92%
92%
(1) Receive the circle pattern signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 4.H-CENT >. (5) Adjust horizontal position to make A=B. (6) Press the [MENU] key and memorize the set value.
(No.YA260)1-21
Page 22
Item
Measuring
instrument
H. SIZE Signal
generator
Remote control unit
Test point Adjustment part Description
Horizontal screen size
[4.DEF]
5.H-SIZE
(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 5.H-SIZE >. (5) Adjust to make sure that the horizontal screen size
of the picture size is in the bellow table.
(6) Make sure that the horizontal screen size of the
each ASPECT mode is in the below table. (7) Press the [MENU] key and memorize the set value. (8) Input a NTSC VIDEO signal (60Hz) from the EXT
terminal, and make sure that the horizontal screen
size is in the table below.
SIDE-PIN Signal
generator
Remote control unit
TRAPEZIUM Signal
generator
Remote control unit
Picture size 100%
Straight
[4.DEF]
7.EW-PIN
[4.DEF]
6.TRAPEZ
ASPECT MODE
SCREEN SIZE
* 14:9 ZOOM and REGULAR is length of 90%. * The value in ( ) shows NTSC adjustment value.
FULL
PANORAMIC
92%(91%) 95%(94%) 92%
SUBTITLE
14:9 ZOOM REGULAR
570mm 510mm
(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 7.EW-PIN >. (5) Adjust to make the vertical lines at the right and left
edges of the screen straight. Also make sure that
the 3rd vertical lines are straight. (6) Press the [MENU] key and memorize the set value.
(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 6.TRAPEZ >. (5) Adjust to bring the vertical lines at the right and left
edges of the screen parallel. (6) Press the [MENU] key and memorize the set value.
1-22 (No.YA260)
Parallel
Page 23
Item
Measuring
instrument
CORNER Signal
generator
Remote control unit
Test point Adjustment part Description
[4.DEF]
8.COR-UP
9.COR-LO
(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 8.COR-UP >. (5) Adjust to bring the straight line at the upper corner. (6) Set the initial setting value of < 9.COR-LO >.
Straight
(7) Adjust to bring the straight line at the lower corner. (8) Press the [MENU] key and memorize the set value.
Straight
ANGLE Signal
generator
Remote control unit
BOW Signal
generator
Remote control unit
[4.DEF]
10. ANGLE
[4.DEF]
11.BOW
• In case where there is a parallelogrammical distortion of images on the screen. (1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 10. ANGLE >. (5) Adjust to bring the vertical lines straight. (6) Press the [MENU] key and memorize the set value.
• In case where there is a bow-shaped distortion of images on the screen. (1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 11. BOW >. (5) Adjust to bring the vertical lines straight. (6) Press the [MENU] key and memorize the set value.
(No.YA260)1-23
Page 24
Item
V. S-SHAPE CORRECTION
Measuring
instrument
Signal generator
& V. LINEARITY
Remote control unit
4.8.4 VIDEO CIRCUIT
Test point Adjustment part Description
[4.DEF]
12.V.S-CR
13.V.LIN
• When the vertical linearity has been deteriorated remarkably, perform the following steps. (1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 13.V.LIN >.
TOP
(5) Set the initial setting value of < 12.V.S-CR >. (6) Adjust < 13.V.LIN > and < 12.V.S-CR > so that the
spaces of each line on top, center and bottom become uniform.
CENTRE
BOTTOM
(7) Press the [MENU] key and memorize the set value.
Item
WHITE BALANCE
Measuring
instrument
Signal generator
Remote control unit
REMOTE CONTROL UNIT KEY
CUTOFF G WDR G
CUTOFF R WDR R
CUTOFF R WDR R
SUB BRIGHT Remote
control unit
SUB CONTRAST
Remote control unit
Test point Adjustment part Description
123
456
789
[2. V/C]
2.CUTOFF R/G
3.WDR R/B
CUTOFF G WDR G
WDR B
WDR B
[2. V/C]
4. BRIGHT
[2. V/C]
5. CONT.
(1) Receive the black and white signal (colour off). (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Set the COLOUR TEMP. to NORMAL. (5) Select 2.V/C from the SERVICE MODE. (6) Select < 2.CUTOFF >. (7) Each select (R), (G) and adjust the screen until the
black portion in the screen becomes black. (8) Select < 3.WDR >. (9) Each select (R), (B) and adjust the screen until the
white portion in the screen becomes white.
NOTE: Do not adjust < 3. WDR G >.
(10) Press the [MENU] key and memorize the set value. (11) Change the contrast and brightness from low light
to high light and check that the tracking of the white
balance is good.
(1) Receive the any broadcast. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 4.BRIGHT >. (6) If the brightness is not the best with the initial set-
ting value, make fine adjustment until you get the
best brightness. (7) Press the [MENU] key and memorize the set value.
(1) Receive the any broadcast. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 5.CONT >. (6) If the contrast is not the best with the initial setting
value, make fine adjustment until you get the best
contrast. (7) Press the [MENU] key and memorize the set value.
1-24 (No.YA260)
Page 25
Item
Measuring
instrument
SUB COLOUR Signal
generator
Remote control unit
Signal generator
Oscilloscope
Remote control unit
Test point Adjustment part Description
TP-47B TP-E
[CRT SOCKET PWB ]
Y
G
R
[2.V/C]
6.COLOUR
[2.V/C]
6.COLOUR
Method of adjustment without measuring instrument
PAL COLOUR
(1) Receive PAL broadcast. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 6.COLOUR >. (6) If the colour is not the best with the initial set value,
make fine adjustment until you get the best colour.
(7) Press the [MENU] key and memorize the set value.
SECAM COLOUR [AV-32T5SP]
(1) Receive the SECAM broadcast. (2) Follow the same step 2 to 7 as in PAL COLOUR.
NTSC 3.58 COLOUR
(1) Input the NTSC 3.58MHz signal from the EXT
terminal.
(2) Follow the same step 2 to 7 as in PAL COLOUR.
NTSC 4.43 COLOUR
(1) When NTSC 3.58 COLOUR set, NTSC 4.43
COLOUR will automatically set.
Method of adjustment using measuring instrument
PAL COLOUR
(1) Receive the PAL full field colour bar signal (75%
white). (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 6.COLOUR >. (6) Connect the oscilloscope between TP-47B and TP-E. (7) Adjust < 6. COLOUR > and bring the value of (A) in
the illustration into the value shown in the table. (8) Press the [MENU] key and memorize the set value.
W
Setting item
VOLTAGE (W-B)
C
B
M
Adjustment value
PAL NTSCSECAM
-3V +2V0V
(A)
(-)
0V
(+)
SECAM COLOUR [AV-32T5SP]
(1) Receive the SECAM colour bar signal (75% white). (2) Follow the same step 2 to 8 as in PAL COLOUR.
NTSC 3.58 COLOUR
(1) Input the NTSC 3.58MHz signal (full field colour bar
with 75% white) from the EXT terminal. (2) Follow the same step 2 to 8 as in PAL COLOUR.
NTSC 4.43 COLOUR
(1) When NTSC 3.58 COLOUR set, NTSC 4.43
COLOUR will automatically set.
(No.YA260)1-25
Page 26
Item
Measuring
instrument
SUB HUE Signal
generator
Remote control unit
Signal generator
Oscilloscope
Remote control unit
W
TP-47B TP-E
[CRT SOCKET PWB]
Y
G
C
M
Test point Adjustment part Description
[2.V/C]
7.HUE
Method of adjustment without measuring instrument
NTSC 3.58 TINT
(1) Input the NTSC 3.58MHz COMPOSITE VIDEO
signal (full field colour bar with 75% white) from the
EXT terminal. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 7. HUE >. (6) If you cannot get the best hue with the initial setting
value, make fine adjustment until you get the best
hue. (7) Press the [MENU] key and memorize the set value.
NTSC 4.43
(1) When NTSC 3.58 is set, NTSC 4.43 will be
automatically set at the respective values.
[2.V/C]
7.HUE
Method of adjustment using measuring instrument
NTSC 3.58 TINT
(1) Input the NTSC 3.58MHz signal (full field colour bar
with 75% white) from the EXT terminal. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 7. HUE >. (6) Connect the oscilloscope between TP-47B and TP-E. (7) Adjust < 7. HUE > and bring the value of (B) in the
illustration into the value shown in the table.
R
(8) Press the [MENU] key and memorize the set
value.
(B)
(-)
0V
B
(+)
NTSC 4.43 TINT
(1) When NTSC 3.58 COLOUR set, NTSC 4.43
COLOUR will automatically set.
Setting item
VOLTAGE (W-M)
1-26 (No.YA260)
Adjustment value
0V
Page 27
Item
SECAM BLACK OFFSET [AV-32T5SP]
B/W mode
Measuring
instrument
Signal generator
Test point Adjustment part Description
TP-47B TP-E
[CRT SOCKET PWB]
Oscilloscope
Remote control unit
REMOTE CONTROL UNIT KEY
Colour mode
123
R-Y
R-Y
It adjusts so that the voltage of B/W and COLOUR waveform may become the same.
456
789
B-Y
B-Y
[2.V/C]
8. BLACK OFF­SET
(1) Receive the SECAM full field colour bar signal. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2. V/C from the SERVICE MODE. (5) Set the initial setting value of < 8.BLACK OFFSET
>.
(6) Connect the oscilloscope between TP-47B and TP-
E at the CRT SOCKET PWB.
(7) Press [1] and [2] keys alternately (turn the colour
on and off), check the waveform of difference in the voltage.
(8) While looking at the waveform, adjust < 8.BLACK
OFFSET > to become same level of the signal voltage of black and white waveform by pressing [6] or [9] keys of remote control unit.
(9) Press the [MENU] key and memorize the set value.
Black and White waveform
Colour waveform
4.8.5 VSM PRESET SETTING
Item
VSM PRESET Remote
Measuring
instrument
control unit
Test point Adjustment part Description
[5. VSM PRESET]
1. BRIGHT
2. CONT
3. COLOUR
4. SHARP
5. HUE
1. R DRIVE
2. G DRIVE
3. B DRIVE
(1) Select 5. VSM PRESET from the SERVICE MODE. (2) Set the PICTURE MODE to BRIGHT. (3) Select < 1. BRIGHT >. (4) Set the initial setting value of PICTURE MODE, as
shown in the below table. (5) Press the [MENU] key to memorize the set value. (6) Select < 2.CONT > to < 5.HUE > in turn, and set the
values. (7) Respectively select the "SOFT" and "STANDARD".
Make similar adjustment as same step as above. (8) Set the COLOUR TEMP to COOL. (9) Select < 1.R DRIVE >.
(10) Set the initial setting value of COLOUR TEMP., as
shown in the below table.
(11) Press the [MENU] key to memorize the set value. (12) Select < 2.G DRIVE > and < 3.B DRIVE > in turn,
and set values.
(13) Respectively select the "WARM" and "NORMAL".
Make similar adjustment as same step as above.
VSM PRESET TABALE
Setting value
Item Variable range
BRIGHT STANDARD SOFT COOL NORMAL WARM
1.BRIGHT -16 - +16 0 0 0 --- --- ---
2.CONT -16 - +16 +12 +10 +2 --- --- ---
3.COLOUR -16 - +16 +6 0 -2 --- --- ---
4.SHARP -16 - +16 0 0 -2 --- --- ---
5.HUE -16 - +16 0 0 0 --- --- ---
1.R DRIVE -63 - +63 --- --- --- -7 0 +5
2.G DRIVE -63 - +63 --- --- --- 0 0 0
3.B DRIVE -63 - +63 --- --- --- +7 0 -5
PICTURE MODE COLOUR TEMP.
(No.YA260)1-27
Page 28
SECTION 5
TROUBLE SHOOTING
This service manual does not describe TROUBLE SHOOTING.
1-28 (No.YA260)
Page 29
(No.YA260)1-29
Page 30
Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
(No.YA260)
Printed in Japan
VPT
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