SECTION 1 PRECAUTION SAFETY PRECAUTIONS (1) The design of this product contains special hardware, (8) When service is required, observe the original lead dress. many circuits and components specially for safety Extra precaution should be given to assure correct lead purposes.
In accordance with the brightness in a room, the brightness and/or contrast of the picture can be adjusted automatically to make the optimum picture which is easy on the eye. • Built-in OFF TIMER & RETURN +. MAIN DIFFERENCE LIST Items AV-25MT35/P AV-25MT15/P AV-25VA15/P ← STEREO SYSTEM PB Stereo ←...
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MAIN CPU [MAIN PWB : IC701] PIN FUNCTION Pin name Function Pin name Function HP-R O Not used VssP2 CVBSO/PIP O CVBS / PIP output VssC4 O Not used V1.8C4 1.8V (Digital) FbiSo Flyback input/sandcastle output V3.3A3 3.3V Hout O Horizontal output VrefP_Sdac 3.3V (Positive) VssComb...
SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE 3.1.1 REMOVING THE TWIN PORT BASS BLASTER UNIT [AV-25MT35/P] • Unplug the power supply cord. (1) Disconnect the TWIN PORT BASS BLASTER UNIT’s cord from the rear of the TV set. (2) Remove the TWIN PORT BASS BLASTER UNIT by pulling it upwards.
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PICTURE TUBE (X2) FRONT CABINET SPEAKER MAIN PWB (CRT SOCKET PWB) MAIN PWB (FRONT LED PWB) (X2) SPEAKER MAIN PWB [AV-25VA15/P] (X11) REAR COVER TWIN PORT BASS BLASTER UNIT [AV-25MT35/P] (X4) Fig.1 (No.YA275)1-7...
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REPLACEMENT OF MEMORY IC 3.2.1 MEMORY IC This TV uses the following memory IC. Memory IC: IC702 on MAIN PWB SERVICE MENU The memory IC memorizes data for correctly operating the video and deflection circuits. When replacing the memory IC, be sure SERVICE MENU to use the same type IC written with the initial values of data.
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3.2.3 FACTORY SETTING VALUE SETTING OF SYSTEM CONSTANT SET Setting value Setting item Setting content AV-25MT35/P AV-25MT15/P AV-25VA15/P TAIWAN OTHERS SYSTEM OTHERS COMB TILT SUPER BASS STEREO MONO SOUND STEREO BLUE BACK MUTE ECO SENSOR SURROUND COMPONENT S INPUT Table 1...
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EDIT / MANUAL Refer to OPERATING INSTRUCTIONS 8. COR-UP WHITE BALANCE (RF) COOL 9. COR-LO BALANCE Center 10. ANGLE SUPER BASS ON [AV-25MT35/P] 11. BOW 12. V-S.CR SOUND MODE (RF) MUSIC 13. V-LIN AI VOLUME 14. V-ZOOM FAVORITE CH RED CH02 15.
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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.
SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION (1) You can make the necessary adjustments for this unit with either the remote control unit or with the adjustment equipment and parts as given below. (2) Adjustment with the remote control unit is made on the basis of the initial setting values, however, the new setting values used for setting the screen to its optimum condition may differ from the initial settings.
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ADJUSTMENT LOCATIONS MAIN PWB ASS'Y (FRONT LED) CN10A MAIN PWB ASS'Y S804 S802 J808 J807 J806 J809 S805 S803 S801 FRONT POWER SW CN00A POWER S901 CORD CN00S IC702 DEG COIL IC701 YOKE J801 J802 J803 J804 CN00C CN00C CN00X TU001 UPPER : FOCUS 1.
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BASIC OPERATION IN SERVICE MENU Operate the SERVICE MENU with the remote control unit. 4.6.1 SERVICE MENU ITEMS With the SERVICE MENU, various settings (adjustments) can be made, and they are broadly classified in the following items of settings: 1. IF For entering/adjusting the setting values (adjustment values) of the IF circuit.
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4.6.3 SERVICE MENU FLOW CHART 1. IF SERVICE MENU SERVICE MENU IF SERVICE MENU 1. IF 2. V/C VCO (CW) ***** 3. AUDIO 4. DEF TOO HIGH 5. VSM W/B 6. STATUS 1. VCO ABOVE REFERENCE 7. PLUG & PLAY (ON) JUST REFERENCE 2.
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ADJUSTMENT PROCEDURE 4.7.1 B1 VOLTAGE Measuring Item Test point Adjustment part Description instrument B1 VOLTAGE Signal B1 (pin 1) (1) Receive a PAL black and white signal. check generator GND (pin 5) (2) Connect a DC voltmeter between B1 and GND [CN00X (between pins 1 and 5 of the connector CN00X).
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4.7.4 VIDEO CIRCUIT ADJUSTMENTS • The setting (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. •...
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Measuring Item Test point Adjustment part Description instrument WHITE Signal [2. V/C] Note: • Set PICTURE MODE (VSM) to "BRIGHT". BALANCE generator 2. CUTOFF (B) (Low light) 2. CUTOFF (G) - COMPOSITE WHITE BALANCE - adjustment Remote (1) Receive a PAL black and white signal (colour off). control unit SCREEN VR (2) Select 2.
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Measuring Item Test point Adjustment part Description instrument SUB BRIGHT Remote [2. V/C] Notes: adjustment control unit 4. BRIGHT • Proceed to the following adjustment after having completed the WHITE BALANCE (Low light) and WHITE BALANCE (High light) adjustment. • Set PICTURE MODE (VSM) to "BRIGHT". (1) Receive a NTSC broadcast.
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Measuring Item Test point Adjustment part Description instrument SUB COLOUR 2 Signal TP-47B [2. V/C] [Method of adjustment using measuring instrument] Notes: adjustment generator TP-E 6. COLOUR • Proceed to the following adjustment after having [CRT SOCKET completed the SUB CONTRAST adjustment. Oscilloscope PWB] •...
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This submenu is for display only, no adjustment is required. Function Item Setting value AUDIO 1. DC XO ADJ 2. NICAM LOWER ERR LIM 3. NICAM UPPER ERR LIM 4. A2 ID THR [AV-25MT35/P] Function MODE Item 100Hz 300Hz 1kHz 3kHz 8kHz...
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[AV-25MT15/P, AV-25VA15/P] Function MODE Item 100Hz 300Hz 1kHz 3kHz 8kHz MENU EQUALIZER RF SOUND TURBO THEATER MUSIC NEWS USER VIDEO SOUND TURBO THEATER MUSIC NEWS USER SOUND TURBO THEATER MUSIC NEWS USER 4.7.6 DEFLECTION CIRCUIT ADJUSTMENTS • The setting (adjustment) using the remote control unit is made on the basis of the initial setting values. •...
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COMPRESS: OFF (4:3) Measuring Item Test point Adjustment part Description instrument V. SLOPE Signal [4. DEF] - PAL V. SLOPE - adjustment generator 2. V-SLOPE (1) Receive a PAL circle pattern signal of vertical frequency 50Hz. Remote (2) Select 4. DEF from the SERVICE MENU. control unit (3) Select 2.
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Measuring Item Test point Adjustment part Description instrument H. WIDTH Signal [4.DEF] - PAL H. WIDTH - adjustment generator 5. H-SIZE (1) Receive a PAL crosshatch signal. (2) Select 5. H-SIZE. Remote (3) Set the initial setting value of 5. H-SIZE. control unit (4) Adjust 5.
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Measuring Item Test point Adjustment part Description instrument V.LINEARITY Signal [4. DEF] - PAL V. LINEARITY - adjustment generator 12. V-S. CR (1) Receive a PAL crosshatch signal. 13. V-LIN (2) Select 12. V-S.CR. Remote (3) Set the initial setting value of 12. V-S. CR. control unit (4) Select 13.
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Measuring Item Test point Adjustment part Description instrument H. BOW Signal [4.DEF] - PAL H. BOW - adjustment generator 11. BOW (1) Receive a PAL crosshatch signal. (2) Select 11. BOW. Remote (3) Set the initial setting value of 11. BOW. control unit (4) Adjust 11.
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Measuring Item Test point Adjustment part Description instrument SIDE PIN Signal [4. DEF] - PAL SIDE PIN - adjustment generator 7. EW-PIN (1) Receive a PAL crosshatch signal. (2) Select 7. EW-PIN. Remote (3) Set the initial setting value of 7. EW-PIN. control unit (4) Adjust 7.
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VIDEO - 2 SET: COMPONENT Measuring Item Test point Adjustment part Description instrument H. POSITION Signal [4. DEF] (1) Receive a PAL circle pattern signal to VIDEO-2 adjustment generator 4. H-CENT component terminal. (2) Select VIDEO-2 SET from the MENU and set Remote VIDEO-2 SET to COMPONENT.
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4.7.8 PURITY AND CONVERGENCE PURITY ADJUSTMENT Note: The final adjustment of CONVERGENCE must be done after WEDGE DEFLECTION the FOCUS adjustment. (CONVERGENCE is changed by YOKE FOCUS adjustment.) When makes difference by FOCUS adjustment, should be reconfirming PURITY adjustment. (1) Demagnetize CRT with the demagnetizer. P / C (2) Loosen the retainer screw of the deflection yoke.
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STATIC CONVERGENCE ADJUSTMENT (1) Input a crosshatch signal. (2) Using 4-pole convergence magnets, overlap the red and blue lines in the centre of the screen (Fig.1) and turn them (FRONT VIEW) to magenta (red/blue). (3) Using 6-pole convergence magnets, overlap the magenta (red/blue) and green lines in the centre of the screen and turn them to white.
SECTION 5 TROUBLESHOOTING SELF CHECK FUNCTIONS 5.1.1 OUTLINE This model has self check functions given below. When an abnormality has been detected, the SUB POWER is turned off and POWER LED flashes to inform of the failure. An abnormality is detected by the signal input state of the control line connected to the microcomputer.
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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.YA275) Printed in Japan...
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AV-25MT35 , AV-25MT15 , AV-25VA15 STANDARD CIRCUIT DIAGRAM NOTE ON USING CIRCUIT DIAGRAMS 1.SAFETY Type No indication : Ceramic capacitor The components identified by the symbol and shading are : Metalized mylar capacitor critical for safety. For continued safety replace safety ciritical : Polypropylene capacitor components only with manufactures recommended parts.
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............................ 2-2 USING P.W.BOARD ................................ 2-2 BLOCK DIAGRAM ................................2-3 CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM [AV-25MT35/P] (1/4), (2/4) ..................2-5 MAIN PWB CIRCUIT DIAGRAM [AV-25MT35/P] (3/4), (4/4) ..................2-7 MAIN PWB CIRCUIT DIAGRAM [AV-25MT15/P] (1/4), (2/4) ..................2-9 MAIN PWB CIRCUIT DIAGRAM [AV-25MT15/P] (3/4), (4/4) ..................
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VOLTAGE CHARTS WAVEFORMS <MAIN PWB <MAIN PWB (FRONT LED)> (CRT SOCKET)> <MAIN PWB> MODE MODE MODE MODE MODE MODE -MAIN PWB- DC (V) DC (V) DC (V) DC (V) DC (V) DC (V) PIN NO. PIN NO. PIN NO. PIN NO. PIN NO.
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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.YA275) Printed in Japan...
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PARTS LIST CAUTION The parts identified by the symbol are important for the safety . Whenever replacing these parts, be sure to use specified ones to secure the safety. The parts not indicated in this Parts List and those which are filled with lines --- in the Parts No. columns will not be supplied. P.W.
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CONTENTS USING P.W. BOARD & REMOTE CONTROL UNIT ....................3-3 EXPLODED VIEW PARTS LIST -1 [AV-25MT35/P, AV-25MT15/P] ................3-3 EXPLODED VIEW -1 ..............................3-3 EXPLODED VIEW PARTS LIST -2 [AV-25VA15/P] ....................3-4 EXPLODED VIEW -2 ..............................3-4 EXPLODED VIEW PARTS LIST -3 ..........................3-5 EXPLODED VIEW -3 ..............................
AV-25MT35/P AV-25MT15/P AV-25VA15/P MAIN P.W.B SCW-1750A-H2 SXW-1721A-H2 SCW-1731A-H2 ← ← REMOTE CONTROL UNIT RM-C1287-1H EXPLODED VIEW PARTS LIST -1 [AV-25MT35/P, AV-25MT15/P] Ref.No. Part No. Part Name Description Local GG10346-001B-H SP PANEL LEFT GG10346-002B-H SP PANEL RIGHT GG10345-001B-H FRONT FRAME TOP...
EXPLODED VIEW PARTS LIST -2 [AV-25VA15/P] Ref.No. Part No. Part Name Description Local GG30068-001A-H AV SHEET GG40023-003A-H JVC MARK GG30044-001B-H REMOCON LENS GG30042-001B-H LED LENS CM35235-003-H SPRING 100 GG10253-017A-H FRONT CABINET ASS'Y Inc.101,102,103 GG20044-001C-H DOOR GG30043-002A-H POWER KNOB...
EXPLODED VIEW -3 FRONT CABINET DY01 MAIN PWB (CRT SOCKET PWB) T522 MAIN PWB (FRONT LED PWB) MAIN PWB [AV-25VA15/P] TWIN PORT BASS BLASTER UNIT [AV-25MT35/P] 3-6(No.YA275)
EXPLODED VIEW PARTS LIST -4 [AV-25MT35/P] Ref.No. Part No. Part Name Description Local LC40352-001A-H RUBBER SHEET (x4) QYSBSFG4016ZA TAP SCREW M4 x 16mm(x13) GG10141-001C-H BASS BOTTOM LC41211-001A SOUND ABSORBER QYSBSFG4016ZA TAP SCREW M4 x 16mm(x4) QAS0118-001 SPEAKER SP03 WJJ0266-002A-E...
PRINTED WIRING BOARD PARTS LIST [AV-25MT35/P] MAIN P.W. BOARD ASS'Y (SCW-1750A-H2) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local D703 MA8091/H/-X Z DIODE D704 MA8091/H/-X Z DIODE IC302 S9648 PHOTO CONDUCTOR D706...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C529 QENC2AM-225Z BP E CAPACITOR 2.2uF 100V M C747 QETN1HM-106Z E CAPACITOR 10uF 50V M C530 QCB32HK-561Z C CAPACITOR 560pF 500V K C748 NCB31CK-104X C CAPACITOR 0.1uF 16V K C531...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C993 QCZ9079-102 C CAPACITOR 1000pF AC250V M R618 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J C994 QETN1HM-335Z E CAPACITOR 3.3uF 50V M R619 NRSA63J-822X MG RESISTOR 8.2kΩ...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R762 NRSA63J-221X MG RESISTOR 220Ω 1/16W J L703 NQR0199-004X FERRITE BEADS R763 NRSA63J-221X MG RESISTOR 220Ω 1/16W J L704 NQR0199-004X FERRITE BEADS R764 NRSA63J-221X MG RESISTOR 220Ω...
PRINTED WIRING BOARD PARTS LIST [AV-25MT15/P] MAIN P.W. BOARD ASS'Y (SCW-1721A-H2) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local D713 MA8039/H/-X Z DIODE D714 MA8030/H/-X Z DIODE IC302 S9648 PHOTO CONDUCTOR D751 MA8091/H/-X Z DIODE IC351...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C571 QETM2CM-227 E CAPACITOR 220uF 160V M C771 QETN1HM-226Z E CAPACITOR 22uF 50V M C572 QETN1CM-107Z E CAPACITOR 100uF 16V M C772 NCB31CK-224X C CAPACITOR 0.22uF 16V K C573 QETN1EM-476Z...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R351 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R711 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J R352 NRSA63J-151X MG RESISTOR 150Ω 1/16W J R712 NRSA63J-392X MG RESISTOR 3.9kΩ...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R824 NRSA63J-471X MG RESISTOR 470Ω 1/16W J K954 QQR1113-001Z FERRITE BEADS R901 QRF154K-2R2 UNF WW RESISTOR 2.2Ω 15W K K955 QQR1113-001Z FERRITE BEADS R907 QRL029J-123 OMF RESISTOR 12kΩ...
PRINTED WIRING BOARD PARTS LIST [AV-25VA15/P] MAIN P.W. BOARD ASS'Y (SCW-1731A-H2) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local D713 MA8039/H/-X Z DIODE D714 MA8030/H/-X Z DIODE IC302 S9648 PHOTO CONDUCTOR D751 MA8091/H/-X Z DIODE IC351...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C571 QETM2CM-227 E CAPACITOR 220uF 160V M C771 QETN1HM-226Z E CAPACITOR 22uF 50V M C572 QETN1CM-107Z E CAPACITOR 100uF 16V M C772 NCB31CK-224X C CAPACITOR 0.22uF 16V K C573 QETN1EM-476Z...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R351 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R711 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J R352 NRSA63J-151X MG RESISTOR 150Ω 1/16W J R712 NRSA63J-392X MG RESISTOR 3.9kΩ...
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Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R824 NRSA63J-471X MG RESISTOR 470Ω 1/16W J K954 QQR1113-001Z FERRITE BEADS R901 QRF154K-2R2 UNF WW RESISTOR 2.2Ω 15W K K955 QQR1113-001Z FERRITE BEADS R907 QRL029J-123 OMF RESISTOR 12kΩ...
PACKING PACKING PARTS LIST Ref.No. Part No. Part Name Description Local GG10285-003A-H PACKING CASE GG10347-001C-H CUSHION ASS'Y 4pcs in 1set AV-25MT35/P,AV-25MT15/P GG10252-001C-H CUSHION ASS'Y 4pcs in 1set AV-25VA15/P GG30097-004A-H POLY BAG GG30096-001A-H POLY BAG ------------ BATTERY AA/R6 (x2) GGT0072-001B-H INST BOOK ...