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SERVICE MANUAL
COLOUR TELEVISION
4 2005 YA263

AV-28H5BU, AV-28H5BL, AV-28H5SK, AV-28H5SL, AV28H5SR, AV-28H5SU, AV-28H50SU, AV-32H5BU, AV-32H5SK, AV-32H5SR, AV-32H5SU, AV-32H50SU, AV-32H57SU
BASIC CHASSIS

ML3

1 4 7

2 5 8 0
AV

3 6 9

P TV

MENU OK

P

F.T/L

TV

AV-28H5BU, AV-28H5BL AV-28H5SK, AV-28H5SL AV-28H5SR, AV-28H5SU AV-32H5BU, AV-32H5SK AV-32H5SR, AV-32H5SU

AV-28H50SU, AV-32H50SU

AV-32H57SU

TABLE OF CONTENTS
1 2 3 4 5 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.YA263 2005/4

SPECIFICATION
Contents Items AV-28H5BU AV-28H5BL AV-28H5SU AV-28H5SL 76.2 cm × 52.8 cm × 49.2 cm 38.0 kg CCIR (B/G, I, D/K, L) PAL SECAM NTSC3.58 / NTSC4.43 (Only EXT mode) A2 (B/G, D/K) NICAM (B/G, I, D/K, L) VHF 47 MHz - 470 MHz [Except AV-28H5SK] UHF 470 MHz - 862 MHz French CATV 116 MHz - 172 MHz 220 MHz - 469 MHz Intermediate Frequency VIF 38.9 MHz (B/G, I, D/K, L) 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) PAL 4.43 MHz SECAM 4.40625 MHz / 4.25 MHz NTSC 3.58 MHz / 4.43 MHz Teletext System TOP (German system) FLOF (Fastext) WST (Standard system) AC220 V - AC240 V, 50 Hz 120 W, Standby : 0.6 W 120 W, Standby : 2.5 W 120 W, Standby : 0.6 W Visible size : 66 cm [measured diagonally (H : 58.3 cm × V : 33.0 cm) 31.0 kV (+1 kV / -1.5 kV) (at zero beam current) 13 cm × 6.5 cm oval type × 2 10 W + 10 W 75 unbalanced, coaxial 21-pin Euro connector (SCART socket × 3) --38.9 MHz (I) 32.9 MHz ( 6.0 MHz:I ) --39.0 kg AV-28H50SU 85.4 cm × 50.8 cm × 49.0 cm AV-28H5SK AV-28H5SR 76.2 cm × 52.8 cm × 49.2 cm 38.0 kg CCIR (I) PAL NTSC3.58 / NTSC4.43 (Only EXT mode) NICAM (I)

Dimensions ( W × H × D ) Mass TV RF System Colour System

Stereo System Receiving Frequency

Colour Sub Carrier Frequency

Power Input Power Consumption Picture Tube High Voltage Speaker Audio Power Output Aerial Input Terminal EXT-1 / EXT-2 / EXT-3 (Input / Output) EXT-4 (Input)

S-Video Mini-Din 4 pin × 1 Y : 1 V(p-p) positive (negative sync, 75) C : 0.3 V(p-p) (Burst signal, 75) Video 1 V(p-p) 75 , RCA pin jack × 1 Audio (L/R) 500 mV(rms) (-4 dBs), High impedance, RCA pin jack × 2 0-1000 mV (rms), Low impedance, RCA pin jack × 2 3.5 mm stereo mini jack × 1 RM-C1502 (AA/R6 dry cell battery × 2) [AV-28H5SU/AV-28H5SL/AV-28H5SK/AV-28H5SR/AV-28H50SU] RM-C1502B (AA/R6 dry cell battery × 2) [AV-28H5BU/AV-28H5BL]

Audio output Headphone Jack Remote Control Unit

Design & specifications are subject to change without notice.

1-2 (No.YA263)

Contents Items Dimensions ( W × H × D ) Mass TV RF System Colour System AV-32H5BU AV-32H5SU 53.0 kg CCIR (B/G, I, D/K, L) PAL SECAM NTSC3.58 / NTSC4.43 (Only EXT mode) A2 (B/G, D/K) NICAM (B/G, I, D/K, L) VHF 47 MHz - 470 MHz [Except AV-32H5SK] UHF 470 MHz - 862 MHz French CATV 116 MHz - 172 MHz 220 MHz - 469 MHz Intermediate Frequency VIF 38.9 MHz (B/G, I, D/K, L) 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) PAL 4.43 MHz SECAM 4.40625 MHz / 4.25 MHz NTSC 3.58 MHz / 4.43 MHz Teletext System TOP (German system) FLOF (Fastext) WST (Standard system) AC220 V - AC240 V, 50 Hz 130 W, Standby : 0.6 W 130 W, Standby : 2.5 W 130 W, Standby : 2.5 W 130 W, Standby : 0.6 W Visible size : 76 cm [measured diagonally] (H : 67.4 cm × V : 38.4 cm) 31.0 kV (+1 kV / -1.5 kV) (at zero beam current) 13 cm × 6.5 cm oval type × 2 10 W + 10 W 75 unbalanced, coaxial 21-pin Euro connector (SCART socket × 3) ----38.9 MHz (I) 32.9 MHz ( 6.0 MHz:I ) AV-32H50SU AV-32H57SU AV-32H5SK AV-32H5SR 53.0 kg CCIR (I) PAL NTSC3.58 / NTSC4.43 (Only EXT mode) NICAM (I)

86.4 cm × 58.7 cm × 55.0 cm 94.6 cm × 56.1 cm × 54.7 cm 94.8 cm × 56.2 cm × 55.0 cm 86.4 cm × 58.7 cm × 55.0 cm 52.5 kg

Stereo System Receiving Frequency

Colour Sub Carrier Frequency

Power Input Power Consumption Picture Tube High Voltage Speaker Audio Power Output Aerial Input Terminal EXT-1 / EXT-2 / EXT-3 (Input / Output) EXT-4 (Input)

S-Video Mini-Din 4 pin × 1 Y : 1 V(p-p) positive (negative sync, 75) C : 0.3 V(p-p) (Burst signal, 75) Video 1 V(p-p) 75 , RCA pin jack × 1 Audio (L/R) 500 mV(rms) (-4 dBs), High impedance, RCA pin jack × 2 0-1000 mV (rms), Low impedance, RCA pin jack × 2 3.5 mm stereo mini jack × 1 RM-C1502 (AA/R6 dry cell battery × 2) [AV-32H5SU/AV-32H5SK/AV-32H5SR/AV-32H50SU/AV-32H57SU] RM-C1502B (AA/R6 dry cell battery × 2) [AV-32H5BU]

Audio output Headphone Jack Remote Control Unit

Design & specifications are subject to change without notice.

(No.YA263)1-3

SECTION 1 PRECAUTION
1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK] (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 per volt or more sensitivity in the following manner. Connect a 1500 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)

(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. 1-4 (No.YA263)

0.15 F AC-TYPE PLACE THIS PROBE ON EACH EXPOSED METAL PART

1500 GOOD EARTH GROUND

10W

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.

(No.YA263)1-5

SECTION 2 SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES DIGITAL VNR This function cuts down the amount of noise in the original picture. HYPER SOUND You can enjoy sounds with a wider ambience. ZOOM This function can change the screen size according to the picture aspect ratio. PICTURE MODE This function can adjust the picture settings automatically. 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 CABINET COLOUR RF SYSTEM REMOTE CONTROL UNIT MAIN PWB POWER & DEF PWB CRT SOCKET PWB SIDE CONTROL PWB AV JACK PWB 100HZ PWB Item CABINET COLOUR RF SYSTEM REMOTE CONTROL UNIT MAIN PWB POWER & DEF PWB CRT SOCKET PWB SIDE CONTROL PWB AV JACK PWB 100HZ PWB AV-28H5BU BLACK PAL,SECAM RM-C1502B SML-1302A-U2 SML-2302A-S2 SML-3302A-U2 SML-8131A-U2 SML0J301A-U2 SML0Z301A-U2 AV-32H5BU BLACK PAL,SECAM RM-C1502B SML-2301A-S2 SML-3301A-U2 SML-8131A-U2 SML0J301A-U2 SML0Z301A-U2 AV-28H5BL AV-32H5SK SILVER PAL I RM-C1502 AV-28H5SK SILVER PAL I RM-C1502 AV-32H5SR AV-28H5SL PAL,SECAM B/G, D/K, I, L AV28H5SR PAL I AV-28H5SU AV-28H50SU PAL,SECAM B/G, D/K, I, L SML-8133A-U2 SML-8302A-U2

BROADCASTING SYSTEM B/G, D/K, I, L

SML-1932A-U2 SML-1302A-U2

SML-2302A-U2 SML-2302A-S2

FRONT CONTORL PWB SML-8301A-U2

AV-32H5SU AV-32H50SU AV-32H57SU PAL,SECAM B/G, D/K, I, L SML-8133A-U2 SML-8302A-U2 SML-2301A-U2

BROADCASTING SYSTEM B/G, D/K, I, L

SML-1301A-U2 SML-1931A-U2 SML-1301A-U2

SML-2301A-U2 SML-2301A-S2

FRONT CONTORL PWB SML-8301A-U2

1-6 (No.YA263)

2.3
1 2 3 4 5 6 7 8 9

21-PIN EURO CONNECTOR (SCART) : EXT-1/EXT-2/EXT-3
Signal designation AUDIO R output AUDIO R input AUDIO L output AUDIO GND GND (B) AUDIO L input B input FUNCTION SW (SLOW SW) GND (G) SCL / T-V LINK G input SDA GND (R) GND (YS) R / C input Ys input (FAST SW) GND (VIDEO output) GND (VIDEO input) VIDEO output VIDEO / Y input COMMON GND 1V(P-P) (Negative sync), 75 1V(P-P) (Negative sync), 75 R : 700mV(B-W), 75 C : 300mV(P-P), 75 700mV(B-W), 75 500mV(rms) (Nominal), High impedance 700mV(B-W), 75 Low : 0V-3V High : 8V-12V, High impedance Matching value 500mV(rms) (Nominal), Low impedance 500mV(rms) (Nominal), High impedance 500mV(rms) (Nominal), Low impedance EXT-1 Used (TV OUT) Used (R1) Used (TV OUT) Used Used Used (L1) Used Used Used Not used Used Not used Used Used Used (R) Used Used Used Used (TV OUT) Used Used EXT-2 Used (LINE OUT) Used (R2) Used (LINE OUT) Used Used Used (L2) Used Used Used Used (SCL2 / TV-LINK) Used Used (SDA2) Used Not used Used (C2/R) Used Used Used Used (LINE OUT) Used Used EXT-3 Not used Used (R3) Not used Used Used Used (L3) Not used Used Used Not used Not used Not used Used Not used Used (C3) Not used Used Used Not used Used Used

Pin No.

10 11 12 13 14 15 16 17 18 19 20 21

Low : 0V-0.4V, High : 1V-3V, 75

(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.YA263)1-7

2.4

TECHNINAL INFORMATION
Pin name D1 D4 D2 D3 XROM VDD25 VSS25 VDD33 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 ENE STOP OCF EXTIF CVBS VDDA25 VSSA P2.0 P2.1 P2.2 P2.3 NC HS/SSC VS P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7 VSS VDD33 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P4.2 P4.3 RST I/O Function Pin No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Pin name NC XTAL2 XTAL1 NC VSSA VDDA25 R G B NC P1.7 NC WR RD NC A19 A18 A17 A16 A15 FL_RGM VDD25 VSS VDD33 A14 A12 A13 A7 FL_RST A8 A6 A9 A5 A11 A4 ALE PSEN A3 A10 VSS VDD33 A2 A1 FL_CE D7 A0 D6 D0 D5 I/O -- Not used I System clock (6MHz) O System clock (6MHz) -- Not used -- GND I 2.5V O Red for OSD / Teletext O Green for OSD / Teletext O Blue for OSD / Teletext -- Not used O Not used -- Not used O External memory write strobe for SRAM O External memory read strobe for SRAM -- Not used O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM I I I Not used 2.5V 3.3V Function

2.4.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 I/O Data bit for SRAM I/O Data bit for SRAM I/O Data bit for SRAM I/O Data bit for SRAM I I I External ROM access (Enable: L) 2.5V 3.3V

-- GND O I2C bus clock for E2PROM I/O I2C bus data for E2PROM O I2C bus clock for generally I/O I2C bus data for generally O Not used O Not used O Audio muting (Muting: H) O Power on/off control (ON: L) I I I I I I I I I Not used Not used Not used Extended memory interface (Enable: L) Composite video signal input 2.5V AFC voltage from tuner Key scan from front control CH+ CH- MENU AGC voltage from tuner

BLANK/COR O Output for blanking and contrast reduction

-- GND

-- GND O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM I Not used O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM O Address bit for SRAM O Enable for address latch O Enable for program store O Address bit for SRAM O Address bit for SRAM -- GND I 3.3V O Address bit for SRAM O Address bit for SRAM I Not used I/O Data bit for SRAM O Address bit for SRAM I/O Data bit for SRAM I/O Data bit for SRAM I/O Data bit for SRAM

O Not used -- Not used I I Horizontal sync Vertical sync

O Not used O Not used I I I I I Remote control Receive data from TV_LINK X-ray HB LB EW correction Protection detection (Normal: H) Not used 3.3V

O DDP reset (Reset: H) I/O Not used -- GND O Not used O Not used O Not used O Output data for TV_LINK O MSP reset (Reset: H) O Not used O Power indication control (ON: L) O Not used O Not used I Reset for main CPU

1-8 (No.YA263)

SECTION 3 DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE [H5 series] 3.1.6 REMOVING THE SPEAKER · Remove the REAR COVER. · Remove the SIDE CONTROL JACK ASS'Y. · Remove the CHASSIS BASE. (1) Remove the 4 screws [E], then remove the SPEAKER. (2) Follow the same steps when removing the other hand 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. 3.1.1 REMOVING THE REAR COVER (1) 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] and 1 claw, then remove the SIDE CONTROL JACK ASS'Y. 3.1.3 REMOVING THE SIDE CONTROL PWB · Remove the REAR COVER. · Remove the SIDE CONTROL JACK ASS'Y. (1) Remove the 2 screws [C], then remove 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 CHASSIS 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 3 screws [D]. (2) Remove the 2 claws under the CHASSIS, then remove the AV TERMINAL BOARD.

(No.YA263)1-9

CRT SOCKET PWB

SPEAKER FRONT CONTROL PWB CONTROL BASE E POWER & DEF PWB Claw CHASSIS BASE 100Hz PWB

E SPEAKER B C Claw SIDE CONTROL PWB SIDE CONTROL BASE SIDE CONTROL JACK ASS'Y

Claw MAIN PWB AV JACK PWB Claw AV TERMINAL BOARD D D

POWER CORD

REAR COVER

A

Fig.1 1-10 (No.YA263)

3.2

DISASSEMBLY PROCEDURE [H50/H57 series] 3.2.6 REMOVING THE SPEAKER · Remove the REAR COVER. · Remove the SIDE CONTROL JACK ASS'Y. · Remove the CHASSIS BASE. (1) Remove the 2 screws [D], then remove the SPEAKER with SPEAKER ADAPTER. (2) Remove the 4 screws [E], then remove the SPEAKER from SPEAKER ADAPTER. (3) Follow the same steps when removing the other hand SPEAKER. 3.2.7 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. 3.2.8 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.

3.2.1 REMOVING THE REAR COVER (1) Remove the 13 screws [A], then withdraw the REAR COVER toward you. 3.2.2 REMOVING THE SIDE CONTROL JACK ASS'Y · Remove the REAR COVER. (1) Remove the 1 screw [B], then remove the SIDE CONTROL JACK ASS'Y. 3.2.3 REMOVING THE SIDE CONTROL PWB · Remove the REAR COVER. · Remove the SIDE CONTROL JACK ASS'Y. (1) Remove the 2 claws, then remove the SIDE CONTROL PWB. 3.2.4 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 CHASSIS BASE from the front cabinet. (2) Withdraw the CHASSIS backward. (If necessary, take off the wire clamp, connectors etc.) 3.2.5 REMOVING THE AV TERMINAL BOARD · Remove the REAR COVER. (1) Remove the 3 screws [C]. (2) Remove the 2 claws under the CHASSIS, then remove the AV TERMINAL BOARD.

(No.YA263)1-11

CRT SOCKET PWB

FRONT CONTROL PWB 100Hz PWB CONTROL BASE Claw POWER & DEF PWB SIDE CONTROL PWB

B SIDE CONTROL BASE C AV JACK PWB D POWER CORD SPEAKER SPEAKER ADAPTER Claw Claw MAIN PWB

CHASSIS BASE AV TERMINAL BOARD

E E

REAR COVER

A
Fig.1 1-12 (No.YA263)

3.3

REMOVING THE CRT
CRT CHANGE TABLE

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.

APPROX. 35cm CLOTH

Fig.2
CRT

CRT CHANGE TABLE BOX TYPE SCREW DRIVER

Fig.3
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

Anode button (No sticking of silicon grease)

Coating position of silicon grease Anode cap

Fig.5

Fig.6

(No.YA263)1-13

3.4

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. 3.4.1 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 MENU screen will be displayed (Fig. 1). (3) While the SERVICE MENU is displayed, press the [INFORMATION] key and [MUTING] key simultaneously, and the SYSTEM CONSTANT SET screen will be displayed (Fig. 2). (4) Check the setting values of the SYSTEM CONSTANT SET. If the value is different, select the setting item with the [FUNCTION / ] key, and set the correct value with the [FUNCTION / ] key. (5) Press the [MENU] key to memorize the setting value. (6) Press the [INFORMATION] key twice, and return to the normal screen. 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. 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
P TV MENU OK

SERVICE MENU 1. IF 2. V/C 3. AUDIO 4. DEF 5. VSM PRESET 6. STATUS 7. SHIPPING (OFF) 1-7 : SELECT i : EXIT

Fig.1
SYSTEM CONSTANT SET 1. DESTINATION EU

- /+

OK

: STORE

i : EXIT

Fig.2

MUTING
1 4 7 2 5 8 0
AV

3 6 9

MENU

FUNCTION /
P
F.T/L

FUNCTION /

TV

3.4.2 SYSTEM CONSTANT SETTING
Setting value Setting item Setting content AV-28H5BU AV-28H5SU AV-32H5BU AV-32H5SU EU 16 : 9 YES NO NO NO NO AV-28H5BL EU 16 : 9 YES NO NO NO NO AV-28H5SK AV-32H5SK EK 16 : 9 YES NO NO NO NO AV-28H5SL EU 16 : 9 YES NO NO NO NO AV-28H5SR AV-32H5SR EI 16 : 9 YES NO NO NO NO AV-28H50SU AV-32H50SU AV-32H57SU EU 16 : 9 YES NO NO NO NO

1.DESTINATION 2.CRT TYPE 3.PICTURE TILT 4.POWER BASS 5.SPATIAL SURR 6.PIC&TEXT 7.PROGRESSIVE

EU / EK / EI 16 : 9 / 4 : 3 YES / NO YES / NO YES / NO YES / NO YES / NO

1-14 (No.YA263)

3.4.3 SETTINGS OF FACTORY SHIPMENT 3.4.3.1 BUTTON OPERATION Setting position Off PR1 10 3.4.3.2 REMOTE CONTROL DIRECT OPERATION Setting position PR1 10 PANORAMIC Setting item POWER CHANNEL VOLUME 3.4.3.3 Setting item CHANNEL VOLUME ZOOM

REMOTE CONTROL MENU OPERATION (4) EXT SETTING Setting position BRIGHT COOL Setting item ID S-IN DUBBING (5) FEATURES Setting item SLEEP TIMER CHILD LOCK BLUE BACK DECODER (EXT-2) (6) INSTALL Setting position Stereo sound -5 [H5 series] Centre [H50 / H57 series] Centre Centre OFF Setting item LANGUAGE AUTO PROGRAM EDIT/MANUAL Setting position ENGLISH TV channel automatically set PRESET CH only The others : BLANK Setting position OFF OFF ON OFF Setting position BLANK BLANK EXT-1 EXT-2

(1) PICTURE SETTING Setting item PICTURE MODE COLOUR TEMP (2) PICTURE FEATURES Setting item DIGITAL VNR COLOUR SYSTEM 4:3 AUTO ASPECT PICTURE TILT (3) SOUND SETTING Setting item STEREO / I·II BASS TREBLE BALANCE HYPER SOUND (7) VSM PRESET TABLE Item 1.BRIGHT 2.CONT 3.COLOUR 4.SHARP 5.HUE 1.WDR R 2.WDR G 3.WDR B Variable range -16~+16 -16~+16 -16~+16 -16~+16 -16~+16 -64~+63 -64~+63 -64~+63 Setting position AUTO TV : According to preset CH EXT : AUTO PANORAMIC Middle

Setting value BRIGHT 0 +7 0 0 0 ------PICTURE MODE STANDARD 0 0 0 0 0 ------SOFT 0 -3 0 -2 0 ------COOL -----------15 -9 0 COLOUR TEMP. NORMAL ----------0 0 0 WARM ----------+4 0 0

(No.YA263)1-15

3.4.4 SERVICE MODE SETING ITEMS Setting item 1. IF 1. VCO Setting value Setting item 4. DEF Setting value 1.V-SHIFT 2.V-SIZE 3.H-CENT 4.H-SIZE 5.TRAPEZ 6.EW-PIN 7.COR-UP 8.COR-LO 9.COR-UP-S 10.COR-LO-S 11.ANGLE 12.BOW 13.V-S.CR 14.V-LIN BRIGHT/SOFT/STANDARD 1. BRIGHT 2. CONT 3. COLOUR 4. SHARP 5. HUE COOL/WARM/NORMAL 1. WDR R 2. WDR G 3. WDR B

2. V/C

1.RGB BLK 2.CUTOFF R 3.CUTOFF G 4.CUTOFF B 5.WDR R 6.WDR G 7.WDR B 8.BRIGHT 9.CONT. 10.COLOUR 11.HUE 12.SHARP 13.SC ADJ 14.SIDE.P.L 15.SIDE.P.R 1.ERROR LIMIT 2.A2 ID THR 3.Q-PEAK 4.SOUND LEVEL

5. VSM PRESET

3. AUDIO [Do not adjust]

6. STATUS [Do not adjust] 7.SHIPPING (OFF) [Do not adjust]

-----

1-16 (No.YA263)

3.5

REPLACEMENT OF CHIP COMPONENT

3.5.1 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. 3.5.2 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. 3.5.3 REPLACEMENT STEPS 1. How to remove 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. How to install Chip parts [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. (2) Shift with the tweezers and remove the chip part.

[Transistors, diodes, variable resistors, etc.] [Transistors, diodes, variable resistors, etc.] (1) Apply extra solder to each lead.
SOLDER SOLDER

(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.

A B C

(4) Then solder leads B and C.
A B

NOTE : After removing the part, remove remaining solder from the pattern.

C

(No.YA263)1-17

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 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 (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 VSM PRESET SETTING · VSM PRESET setting

Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE CONTROL UNIT. Item PICTURE MODE CONTRAST / BRIGHT / SHARP / COLOUR / HUE COLOUR TEMP DIGITAL VNR BASS / TREBLE / BALANCE HYPER SOUND ZOOM SLEEP TIMER Preset value STANDARD Centre NORMAL AUTO Centre OFF FULL OFF

1-18 (No.YA263)

4.5

ADJUSTMENT LOCATIONS [H5 series]

SIDE CONTROL PWB
TOP FRONT
K B F

FRONT CONTROL PWB
FRONT
PW W

S

SPEAKER(R) SPEAKER(L)

FRONT
POWER CORD

FRONT

SR

SL

POWER & DEF PWB
S K B W

DEG

MAIN PWB
CN003 CN003

DEG COIL

100Hz PWB
CN004 F CN004

TUNER

R CN005 CN005 HV

AV JACK PWB

DEF. YOKE

HVT CN002

X

1 5

CN001 G

FOCUS

CRT SOCKET PWB (SOLDER SIDE)

SCREEN

1 : TP-91(B1) 2 : NC 3 : X-RAY1 4 : X-RAY2 5 : TP-E ( )

TP-E

TP-47B

G R

(No.YA263)1-19

4.6

ADJUSTMENT LOCATIONS [H50/H57 series]

SIDE CONTROL PWB
S

FRONT CONTROL PWB
FRONT
PW W B

TOP

F

POWER CORD
K

SPEAKER(R) SPEAKER(L)

FRONT

FRONT

SR

SL

POWER & DEF PWB
S K B W

DEG

MAIN PWB
CN003 CN003

DEG COIL

100Hz PWB
CN004 F CN004

TUNER

R CN005 CN005 HV

AV JACK PWB

DEF. YOKE

HVT CN002

X

1 5

CN001 G

FOCUS

CRT SOCKET PWB (SOLDER SIDE)

SCREEN

1 : TP-91(B1) 2 : NC 3 : X-RAY1 4 : X-RAY2 5 : TP-E ( )

TP-E

TP-47B

G R

1-20 (No.YA263)

4.7

TOOL OF SERVICE MODE OPERATION

Operate the SERVICE MODE with the REMOTE CONTROL UNIT. 4.7.1 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 2.V/C 3.AUDIO 4.DEF 5.VSM PRESET 6.STATUS 7.SHIPPING (OFF) : This mode adjusts the setting values of the IF circuit. : This mode adjusts the setting values of the VIDEO circuit. : This mode adjusts the setting values of the MULTI-SOUND circuit. [Do not adjust] : This mode adjusts the setting values of the DEFLECTION circuit. : This mode adjusts the setting values of COOL, NORMAL and WARM. (VSM : Video Status Memory) : This mode is shows the monitor of VPS, PDC, WSS. [Do not adjust] : This mode is set at shipping. [Do not adjust]

4.7.2 BASIC OPERATION IN SERVICE MODE 4.7.2.1 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.
SERVICE MENU
1. IF 3. AUDIO 5. VSM PRESET 7. SHIPPING(OFF) 2. V/C 4. DEF 6. STATUS

4.7.2.2 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. 4.7.2.3 SETTING METHOD

Fig.1

1.IF [1. VCO] : It must not adjust without signal (1) [1] key Select 1.IF. (2) 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.STATUS and 7.SHIPPING (OFF) It is not requirement to adjustment. 4.7.2.4 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. 4.7.2.5 RELEASE OF SERVICE MODE After completing the setting, return to the SERVICE MODE, then again press the [INFORMATION] key.

MUTING
1 4 7 2 5 8 0
AV

3 6 9

INFORMATION
P TV MENU OK

MENU

FUNCTION / FUNCTION /
P
F.T/L

TV

Fig.2

(No.YA263)1-21

4.7.3 SERVICE MODE FLOW CHART
SERVICE MENU
SERVICE MENU 1. IF 2. V/C 3. AUDIO 4. DEF 5. VSM PRESET 6. STATUS 7. SHIPPING (OFF) 1-7 : SELECT i : EXIT

4. DEF 1. V-SHIFT 2. V-SIZE 3. H-CENT 4. H-SIZE 5. TRAPEZ 6. EW-PIN 7. COR-UP 8. COR-LO 9. COR-UP-S 10. COR-LO-S 11. ANGLE 12.BOW 13.V-S.CR 14.V-LIN

1.IF(VCO)
VCO(CW) **** MHz

DEF 1. V-SHIFT

FULL

100Hz

TOO HIGH ABOVE REF JUST REF BELOW REF TOO LOW

-/+

OK : STORE

i

: EXIT

i

: EXIT

5. VSM PRESET V/C

2. V/C 1. RGB BLK 2. CUTOFF R 3. CUTOFF G 4. CUTOFF B 5. WDR R 6. WDR G 7. WDR B 8. BRIGHT 9. CONT 10. COLOUR 11. HUE 12. SHARP 13. SC ADJ 14. SIDE .P.L 15. SIDE .P.R

PICTURE MODE BRIGHT STANDARD SOFT 1. BRIGHT 2. CONT 3. COLOUR 4. SHARP 5. HUE COLOR TEMP COOL NORMAL WARM 1. WDR R 2. WDR G 3. WDR B

VSM PRESET 1.CONT

BRIGHT

PAL

FUL

1. RGB BLK

-/+

OK : STORE

i

: EXIT

-/+

OK : STORE SC DEV

i

: EXIT

Do not adjust
7. STATUS 3. AUDIO AUDIO
VPS PDC 8/30/1 WSS = = = =
H(---) H H H

1. ERROR LIMIT ERROR RATE = C_AD_BITS =

0010 1. ERROR LIMIT 2. A2 ID THR 3. Q-PEAK 4. SOUND LEVEL i : EXIT

-/+

OK : STORE

1-22 (No.YA263)

4.8

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. 4.8.1 [2. V/C] Setting item 1.RGB BLK 2.CUTOFF R 3.CUTOFF G 4.CUTOFF B 5.WDR R 6.WDR G 7.WDR B 8.BRIGHT 9.CONT. 10.COLOUR 11.HUE Variable range --0000 - 0255 0000 - 0255 0000 - 0255 0000 - 0255 0000 - 0255 0000 - 0255 -128 - 0127 0000 - 0063 0000 - 0063 -064 - 0063 Initial setting value PAL --0100 0132 0124 0165 0135 0150 -030 0040 0036 --SECAM --0100 0132 0124 0165 0135 0150 -030 0040 0031 --NTSC 3.58 --0100 0132 0124 0165 0135 0150 -030 0040 0025 0002 NTSC 4.43 --0100 0132 0124 0165 0135 0150 -030 0040 [0000] [0000]

NOTE: [ ] is fixed values. Variable range -015 - 0015 Initial setting value PAL TV [-002] EXT [0000] TV [-002] SECAM EXT [0000] NTSC 3.58 TV [-002] EXT [0000] NTSC 4.43 TV [-002] EXT [0000]

Setting item 12.SHARP

NOTE: [ ] is fixed values. Setting item 13.SC ADJ Variable range 0000 - 0063 Initial setting value PAL 0018 SECAM --NTSC 3.58 --NTSC 4.43 ---

Setting item 14.SIDE .P.L 15.SIDE .P.R

Variable range 0000 - 1295 0000 - 1295

Initial setting value PAL 346 1084 296 1135 SECAM 346 1084 296 1135 NTSC 3.58 351 1195 301 1147 NTSC 4.43 351 1195 301 1147 REGULAR 14:9 ZOOM REGULAR 14:9 ZOOM REGULAR 14:9 ZOOM REGULAR 14:9 ZOOM

4.8.2 [3. AUDIO] [Do not adjust] Setting item 1. ERROR LIMIT 2. A2 ID THR 3. Q-PEAK 4. SOUND LEVEL Variable range 0000H - 0FF0H 0000H - 00FFH ----Fixed value 0010H 0019H -----

(No.YA263)1-23

4.8.3 [4. DEFLECTION] [28V MODEL] Setting item 1. V-SHIFT 2. V-SIZE 3. H-CENT 4. H-SIZE 5. TRAPEZ 6. EW-PIN 7. COR-UP 8. COR-LO 9. COR-UP-S 10. COR-LO-S 11.ANGLE 12.BOW 13.V-S.CR 14.V-LIN Variable range -032 - 0031 -064 - 0063 -128 - 0127 -128 - 0127 -064 - 0064 -128 - 0127 -064 - 0064 -064 - 0064 -064 - 0064 -064 - 0064 -128 - 0127 -128 - 0127 -064 - 0063 -064 - 0063 Initial setting value FULL 100Hz i 0 -33 -14 20 -5 -40 0 0 0 0 0 0 5 0 120Hz i 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 [5] [-3] PANORAMIC 100Hz i 120Hz i 0 0 0 0 0 0 0 0 0 0 0 0 [0] [0] 5 20 0 0 5 0 0 5 0 0 0 0 [8] [-8] SUBTITLE 100Hz i 120Hz i 0 0 0 0 0 0 0 0 0 0 0 0 [0] [0]

NOTE: [ ] is fixed values. 4.8.4 [4. DEFLECTION] [32V MODEL] Setting item 1. V-SHIFT 2. V-SIZE 3. H-CENT 4. H-SIZE 5. TRAPEZ 6. EW-PIN 7. COR-UP 8. COR-LO 9. COR-UP-S 10. COR-LO-S 11.ANGLE 12.BOW 13.V-S.CR 14.V-LIN Variable range -032 - 0031 -064 - 0063 -128 - 0127 -128 - 0127 -064 - 0064 -128 - 0127 -064 - 0064 -064 - 0064 -064 - 0064 -064 - 0064 -128 - 0127 -128 - 0127 -064 - 0063 -064 - 0063 Initial setting value FULL 100Hz i 0 40 -14 14 -5 -35 0 0 0 0 0 0 3 0 120Hz i 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 [5] [0] PANORAMIC 100Hz i 120Hz i 0 0 0 0 0 0 0 0 0 0 0 0 [0] [0] 5 20 0 0 5 0 0 5 0 0 0 0 [8] [-8] SUBTITLE 100Hz i 120Hz i 0 0 0 0 0 0 0 0 0 0 0 0 [0] [0]

NOTE: [ ] is fixed values.

1-24 (No.YA263)

4.8.5 [5. VSM PRESET] Item 1.BRIGHT 2.CONT 3.COLOUR 4.SHARP 5.HUE 1.WDR R 2.WDR G 3.WDR B Variable range -16 - +16 -16 - +16 -16 - +16 -16 - +16 -16 - +16 -64 - +63 -64 - +63 -64 - +63 Setting value PICTURE MODE BRIGHT 0 +7 0 0 0 ------STANDARD 0 0 0 0 0 ------SOFT 0 -3 0 -2 0 ------COOL -----------15 -9 0 COLOUR TEMP. NORMAL ----------0 0 0 WARM ----------+4 0 0

(No.YA263)1-25

4.9

ADJUSTMENT PROCEDURE Measuring instrument

4.9.1 CHECK ITEM Item B1 VOLTAGE Test point Adjustment part (1) (2) (3) (4) Description Receive the any broadcast. Select 2. V/C from the SERVICE MODE. Select < 1. RGB BLK >. Press the [FUNCTION ] key to find the cut off screen (Black screen). (5) Connect a DC voltmeter to 1-pin and 5-pin of X connector. (6) Make sure that the voltage is DC139V ± 2.0V. (7) Press the [FUNCTION ] key to return to SERVICE MODE. Receive the any broadcast. Select 2. V/C from the SERVICE MODE. Select < 1. RGB BLK >. Press the [FUNCTION ] key to find the cut off screen (Black screen). (5) Connect the 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. IF VCO Remote control unit
VCO(CW) TOO HIGH ABOVE REF JUST REF BELOW REF TOO LOW **** MHz

DC voltmeter X connector [2.V/C] 1-pin:TP-91(B1) 1.RGB BLK 5-pin:TP-E Remote control unit [POWER & DEF PWB]

HIGH VOLTAGE HV voltmeter CRT anode Remote control unit Chassis GND

[2.V/C] 1.RGB BLK

(1) (2) (3) (4)

[1.IF] 1.VCO

· Under normal conditions, no adjustment is required. · It must not adjust without broadcast signal. (1) Receive the any broadcast. (2) Select 1.IF from the SERVICE MODE. (3) Check the "" position between the ABOVE REF. and BELOW REF.

4.9.2 FOCUS Item FOCUS Measuring instrument Signal generator Test point Adjustment part FOCUS VR [In HVT] Description (1) Receive the crosshatch signal. (2) Set the ZOOM mode to FULL. (3) While looking at the screen, adjust the FOCUS VR to the vertical and horizontal lines will be clear and infine detail. (4) Make sure that the picture is in focus even when the screen gets darkened.

HVT FOCUS SCREEN

1-26 (No.YA263)

4.9.3 DEFLECTION CIRCUIT There are 3 aspect modes ( 1.FULL, 2.PANORAMIC, 3.SUBTITLE) of the adjustment. Depending upon the kind of signals ( Vertical frequency 100Hz i / 120Hz i). 100Hz i is a signal that is output to a screen when a 50Hz signal is input to a television set. It is an interlace-scanned picture of 100Hz. 120Hz i is a signal that is output to a screen when a 60Hz signal is input to a television set. It is an inerlace-scanned picture of 120Hz. · When the 100Hz FULL mode has been established, the setting of other modes will be done automatically. However, if the picture quality has not been optimized, adjust each mode again, respectively. · 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. · To switch aspect modes, use the [ZOOM] key of the remote controller. NOTE : · Do not adjust PANORAMIC & SUBTITLE mode. · At first the adjustment in 100Hz 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 100Hz 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. Measuring instrument Signal generator Remote control unit
(A)

Item V. POSITION

Test point

Adjustment part [4.DEF] 1.V- SHIFT

Description (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. (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 to memorize the set value.

(B)

V. SIZE

Signal generator Remote control unit

[4.DEF] 2.V-SIZE

(1) (2) (3) (4) (5)

Vertical screen size

Picture size 100%

Receive the cross hatch signal. Set the ZOOM mode to FULL. Select 4.DEF from the SERVICE MODE. Set the initial setting value of < 2.V-SIZE >. 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 to memorize the set value. (8) Input a NTSC VIDEO signal (60Hz) from the EXT terminal, and make sure that the vertical screen size is in the table below.
(9)

ASPECT MODE SCREEN TOP SCREEN BOTTOM

FULL 93% 93%

PANORAMIC SUBTITLE 87% 87% 70% 83%

(No.YA263)1-27

Item H. POSITION

Measuring instrument Signal generator Remote control unit
(A)

Test point

Adjustment part [4.DEF] 3.H-CENT (1) (2) (3) (4) (5) (6)

Description Receive the circle pattern signal. Set the ZOOM mode to FULL. Select 4.DEF from the SERVICE MODE. Set the initial setting value of < 3.H-CENT >. Adjust horizontal position to make A=B. Press the [MENU] key to memorize the set value.

(B)

H. SIZE

Signal generator Remote control unit
Horizontal screen size

[4.DEF] 4.H-SIZE

(1) (2) (3) (4) (5)

Receive the cross hatch signal. Set the ZOOM mode to FULL. Select 4.DEF from the SERVICE MODE. Set the initial setting value of < 4.H-SIZE >. 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 to 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.
FULL 92% PANORAMIC SUBTITLE 95% 92%

ASPECT MODE SCREEN SIZE

Picture size 100%

SIDE-PIN

Signal generator Remote control unit

[4.DEF] 6.EW-PIN

(1) (2) (3) (4) (5)

Receive the cross hatch signal. Set the ZOOM mode to FULL. Select 4.DEF from the SERVICE MODE. Set the initial setting value of < 6.EW-PIN >. 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 to memorize the set value.

Straight

1-28 (No.YA263)

Item TRAPEZIUM

Measuring instrument Signal generator Remote control unit

Test point

Adjustment part [4.DEF] 5.TRAPEZ (1) (2) (3) (4) (5)

Description Receive the cross hatch signal. Set the ZOOM mode to FULL. Select 4.DEF from the SERVICE MODE. Set the initial setting value of < 5.TRAPEZ >. Adjust to bring the vertical lines at the right and left edges of the screen parallel. (6) Press the [MENU] key to memorize the set value.

Parallel

CORNER

Signal generator Remote control unit
Straight

[4.DEF] 7.COR-UP 8.COR-LO 9.COR-US-S 10.COR-LO-S

Receive the cross hatch signal. Set the ZOOM mode to FULL. Select 4.DEF from the SERVICE MODE. Set the initial setting value of < 7.COR-UP >. Adjust to bring the straight line at the upper corner. Set the initial setting value of < 8.COR-LO >. Adjust to bring the straight line at the lower corner. Press the [MENU] key to memorize the set value. If the extreame upper & lower corners are a little pin or barrel chose < 9.COR-UP-S > or < 10. COR-LOS > and adjust. (10) Press the [MENU] key to memorize the set value.

(1) (2) (3) (4) (5) (6) (7) (8) (9)

Straight

ANGLE

Signal generator Remote control unit

[4.DEF] 11. ANGLE

· 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 < 11. ANGLE >. (5) Adjust to bring the vertical lines straight. (6) Press the [MENU] key to memorize the set value.

(No.YA263)1-29

Item BOW

Measuring instrument Signal generator Remote control unit

Test point

Adjustment part [4.DEF] 12.BOW

Description · 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 < 12. BOW >. (5) Adjust to bring the vertical lines straight. (6) Press the [MENU] key to memorize the set value.

V. S-SHAPE CORRECTION & V. LINEARITY

Signal generator Remote control unit

[4.DEF] 13.V-S.CR 14.V-LIN

TOP

CENTRE

· 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-S.CR >. (5) Set the initial setting value of < 14.V-LIN >. (6) Adjust < 13.V-S.CR > and < 14.V-LIN > so that the spaces of each line on top, centre and bottom become uniform. (7) Press the [MENU] key to memorize the set value.

BOTTOM

1-30 (No.YA263)

4.9.4 VIDEO CIRCUIT Item Measuring instrument Test point Adjustment part [2. V/C] 2.CUTOFF R 3.CUTOFF G 4.CUTOFF B 5.WDR R 6.WDR G (1) (2) (3) (4) (5) (6) Description Receive a black and white signal (colour off). Set the ZOOM mode to FULL. Set the PICTURE MODE to STANDARD. Set the COLOUR TEMP to NORMAL. Select 2.V/C from the SERVICE MODE. Each select 2.CUTOFF R, 3.CUTOFF G, 4.CUTOFF B and adjust the screen until the black portion in the screen becomes black. (7) Each select 5.WDR R, 6.WDR G and adjust the screen until the white portion in the screen becomes white. NOTE:Do not adjust 7. WDR B (8) Press the [MENU] key to memorize the set value. (9) Change the contrast and brightness from low-light to high-light and check that the tracking of the white balance is good. (1) (2) (3) (4) (5) (6) Receive the any broadcast. Set the ZOOM mode to FULL. Set the PICTURE mode to STANDARD. Select 2.V/C from the SERVICE MODE. Set the initial setting value of < 8.BRIGHT >. If the brightness is not the best with the initial setting value, make fine adjustment until you get the best brightness. (7) Press the [MENU] key to memorize the set value. Receive the any broadcast. Set the ZOOM mode to FULL. Set the PICTURE mode to STANDARD. Select 2.V/C from the SERVICE MODE. Set the initial setting value of < 9.CONT. >. 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 to memorize the set value. (1) (2) (3) (4) (5) (6)

WHITE BALANCE Signal generator Remote control unit

REMOTE CONTROL UNIT KEY
CUTOFF G WDR G CUTOFF R WDR R CUTOFF R WDR R CUTOFF G WDR G CUTOFF B WDR B CUTOFF B WDR B

1 4 7

2 5 8

3 6 9

SUB BRIGHT

Remote control unit

[2. V/C] 8. BRIGHT

SUB CONTRAST Remote control unit

[2. V/C] 9. CONT.

(No.YA263)1-31

Item SUB COLOUR

Measuring instrument Signal generator Remote control unit

Test point

Adjustment part [2.V/C] 10.COLOUR

Description 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 < 10.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 to memorize the set value. SECAM COLOUR [Except AV-28H5SK, AV28H5SR, AV-32H5SK, AV-32H5SR] (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.

Signal generator Oscilloscope Remote control unit

TP-47B [2.V/C] TP-E 10.COLOUR [CRT SOCKET PWB ]

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 <10.COLOUR >. (6) Connect the oscilloscope between TP-47B and TP-E. (7) Adjust < 10. COLOUR > and bring the value of (A) in the illustration into the value shown in the table. (8) Press the [MENU] key to memorize the set value. SECAM COLOUR [Except AV-28H5SK, AV28H5SR, AV-32H5SK, AV-32H5SR] (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.

Y

G

R

(A) W
C M

(-) 0V

B

(+)

Adjustment value Setting item PAL AV-28H5SK AV-32H5SK +3V others +11V SECAM +7V NTSC +7V

VOLTAGE (W-B)

1-32 (No.YA263)

Item SUB HUE

Measuring instrument Signal generator Remote control unit

Test point

Adjustment part [2.V/C] 11.HUE

Description Method of adjustment without measuring instrument NTSC 3.58 HUE (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 < 11. 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 to memorize the set value. NTSC 4.43 HUE (1) When NTSC 3.58 HUE is set, NTSC 4.43 HUE will be automatically set at the respective values.

Signal generator Oscilloscope Remote control unit

[2.V/C] TP-47B 11.HUE TP-E [CRT SOCKET PWB]

Method of adjustment using measuring instrument NTSC 3.58 HUE (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 < 11. HUE >. (6) Connect the oscilloscope between TP-47B and TP-E. (7) Adjust < 11. HUE > and bring the value of (B) in the illustration into the value shown in the table. (8) Press the [MENU] key to memorize the set value. NTSC 4.43 HUE (1) When NTSC 3.58 HUE set, NTSC 4.43 HUE will automatically set.

Y

G

R

(B) W
C B

(-) 0V

M

(+)

Setting item VOLTAGE (W-M)

Adjustment value -7V

(No.YA263)1-33

4.9.5 VSM PRESET SETTING Item VSM PRESET Measuring instrument Remote control unit Test point Adjustment part [5. VSM PRESET] 1. BRIGHT 2. CONT 3. COLOUR 4. SHARP 5. HUE 1. WDR R 2. WDR G 3. WDR B (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) Description Select 5. VSM PRESET from the SERVICE MODE. Set the PICTURE MODE to BRIGHT. Select < 1.BRIGHT >. Set the initial setting value of PICTURE MODE, as shown in the below table. Press the [MENU] key to memorize the set value. Select < 2.CONT > to < 5.HUE > in turn, and set the values. Respectively select the "SOFT" and "STANDARD". Make similar adjustment as same step as above. Set the COLOUR TEMP to COOL. Select < 1.WDR R >. Set the initial setting value of COLOUR TEMP., as shown in the below table. Press the [MENU] key to memorize the set value. Select < 2.WDR G > and < 3.WDR B > in turn, and set values. Respectively select the "WARM" and "NORMAL". Make similar adjustment as same step as above.

VSM PRESET TABALE Item 1.BRIGHT 2.CONT 3.COLOUR 4.SHARP 5.HUE 1.WDR R 2.WDR G 3.WDR B Variable range -16 - +16 -16 - +16 -16 - +16 -16 - +16 -16 - +16 -64 - +63 -64 - +63 -64 - +63 Setting value PICTURE MODE BRIGHT 0 +7 0 0 0 ------STANDARD 0 0 0 0 0 ------SOFT 0 -3 0 -2 0 ------COOL -----------15 -9 0 COLOUR TEMP. NORMAL ----------0 0 0 WARM ----------+4 0 0

1-34 (No.YA263)

SECTION 5 TROUBLESHOOTING
5.1 SELF CHECK FUNCTIONS 5.1.1 OUTLINE These models have self-check functions given below. When an abnormality has been detected, the SUB POWER is turned off and POWER LED lights up by turns in green and orange. An abnormality is detected by the signal input state of the control line connected to the microcomputer. 5.1.2 SELF CHECK ITEMS Check item Low B short protection Details of detection Method of detection State of abnormality When an abnormality has detected, the SUB POWER is turned off and POWER LED lights up by turns in green and orange. While the SUB POWER is being turned off, the POWER key on the remote control unit is not operational until the power cord is taken out and put in again. DITTO A short on the low B (12V, 9V, The protect port on the 5V, 3.3V, 2.5V) line is detected. microcomputer (11pin) is always monitored at 150msec intervals. If an abnormality is detected nine time successively, it is judged that there is an abnormality.

CRT neck broken protection Operation of CRT neck broken DITTO protection circuit. (Vertical amplitude is detected.) 5.1.3 SELF CHECK INDICATING FUNCTION When an abnormality has been detected at about 5 seconds after the power is turned on, the SUB POWER is turned off immediately and the POWER LED lights up by turns in green and orange.
Power on

After about 5 seconds

Detection of an abnormality POWER LED lights up by turns in green and orange

Start of detection

SUB-POWER OFF

(No.YA263)1-35

Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY DISPLAY CATEGORY 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan

(No.YA263)

Printed in Japan VPT