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Aiwa TV-AS216NH NH, Руководство по обслуживанию

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Aiwa TV-AS216NH NH Скачать руководство пользователя страница 46

– 46 –

3-5. WBD / SPE  Stereo Audio Separation Adjustment

[TV / Measuring instrument setting]

Input Signal

FREQUENCY : US 11ch (199.25MHz)

Test Point

IC251 22PIN / R-OUT

SPEC

MINIWAVE

MODE

TUNER

This adjustment requires NTSC US MPX SOUND MODULATOR.

1. Configure the NTSC US MPX SOUND MODULATOR setting.  (Fig. 3-5)

2. Attach the following filter to the test point.

3. Connect the oscilloscope.

WBD (WIDEBAND) Adjustment:

4. Switch the adjustment menu to WBD.

5. Set the internal modulation of NTSC US MPX SOUND MODULATOR to

300Hz.

6. Input the specified input signal to ANT, and adjust the test point waveform to

minimum, using the  or - key on the remote control.

SPE (SPECTRAL) Adjustment:

7. Switch the adjustment menu to SPE.

8. Set the internal modulation of NTSC US MPX SOUND MODULATOR to 3KHz.

9. Input the specified input signal to ANT, and adjust the test point waveform to

minimum, using the  or - key on the remote control.

Repeat the steps 4 to 9 till both the adjustments reach the minimum level.

Fig.3-5

NTSC US MPX SOUND MODULATOR

Modulation

300Hz (WBD)

3KHz (SPE)

Audio

Lch

Channel

199.25MHz

Image signal

Color bar

Oscilloscope

Ω

Содержание TV-AS216NH NH

Страница 1: ...SERVICE MANUAL D A T A COLOR TELEVISION TV AS216 S M Code No 09 022 450 7R1 REVISION NH S This Service Manual is the Revision Publishing and replaces Simple Manual S M Code No 09 01C 450 7T1...

Страница 2: ...ING 1 MAIN 19 SCHEMATIC DIAGRAM 1 MAIN 1 2 20 SCHEMATIC DIAGRAM 2 MAIN 2 2 21 WIRING 2 NK 22 SCHEMATIC DIAGRAM 3 NK 23 IC BLOCK DIAGRAM 24 25 IC DESCRIPTION 26 WAVEFORM 27 28 CRT ADJUSTMENT 29 32 ELEC...

Страница 3: ...6 X 121 8 in 508 mm diagonal 20 in Video Input 1 Vp p 75 ohms Audio Input 4dBs 47K ohms Video Output 1 Vp p 75 ohms Audio Output 4dBs 2K ohms less Speaker 80 mm 31 4 in Operating Voltage 120V AC 60Hz...

Страница 4: ...note the followings board The inside wiring is designed not to get close to the pyrogenic parts and high voltage parts Therefore put these parts in the original positions 5 Take care of the cathode r...

Страница 5: ...easily causing an accident Do not turn the anode cap 3 If the anode cap is turned in the direction of its circumference the hook is likely to come off 2 2 Anode Cap Removal Discharge the anode voltage...

Страница 6: ...installing it Never re use the hook when it has been deformed 1 If the anode cap is turned after it is installed it may come off Therefore arrange the high voltage cable before attaching the anode ca...

Страница 7: ...could turn and cause an installation defect 4 Turn over the rubber cap symmetrically on the left and right See Figure 3 4 Caution Take great care not to damage the anode cap Figure 3 3 5 Fit your fore...

Страница 8: ...cap turned over and visually check that the hook is engaged securely 9 Release your hand from the rubber cap of the anode cap Caution Cover the anode cap so that it does not lift 10 Hold the skirt of...

Страница 9: ...CN881 3 Remove connector CN801 4 Pull out the MAIN C B in the direction of the arrow 2 See Figure 4 1 6 DECIDING A SERVICING POSITION 1 Remove the CN406 speakers 2 Rotate the circuit board to the dir...

Страница 10: ...C CAP U 22P 50 J CH a MAIN O C 0201 86 ZA1 616 080 C CAP U 0 01 50 K B MUR a MAIN O C 0202 86 ZA1 616 080 C CAP U 0 01 50 K B MUR a MAIN O C 0203 87 010 400 080 CAP E 0 47 50 M 11L SME a MAIN O C 020...

Страница 11: ...010 545 080 CAP E 0 22 50 M 11L SME a MAIN O C 0506 87 A10 292 080 CAP M 5600P 50 J a MAIN O C 0508 87 A12 492 080 CAP CER 1000P 500 K B Y5P a MAIN O C 0510 87 012 274 080 C CAP U 1000P 50 K B a MAIN...

Страница 12: ...N 2P V VT 50P a MAIN O CN 0881 87 099 674 010 CONN 2P V VA a MAIN O CNA0401 8B JES 664 010 CONN ASSY 4P SP F21 STRIPPED a MAIN O D 0001 87 070 110 010 LED SLP 181B 51 RED a MAIN S D 0004 87 017 932 08...

Страница 13: ...0UH J LAV35 a MAIN O L 0201 8Z JBR 612 010 COIL SIF 4 5MHZ 504BN a MAIN O L 0203 87 005 612 080 COIL 68UH J LAV35 a MAIN O L 0204 87 003 146 080 COIL 15UH J LAL02 a MAIN O L 0205 8Z JBH 610 010 COIL P...

Страница 14: ...RES 270 1 8W J a MAIN X R 0036 88 108 472 080 C RES U 4 7K 1 16W J a MAIN X R 0038 88 108 223 080 C RES U 22K 1 16W J a MAIN X R 0040 88 121 101 080 RES 100 1 8W J a MAIN X R 0041 88 108 102 080 C RES...

Страница 15: ...80 C RES U 3 9K 1 16W J a MAIN X R 0351 88 108 273 080 C RES U 27K 1 16W J a MAIN X R 0353 88 108 222 080 C RES U 2 2K 1 16W J a MAIN X R 0354 88 108 222 080 C RES U 2 2K 1 16W J a MAIN X R 0355 88 10...

Страница 16: ...J a MAIN O R 0766 87 022 367 080 C RES S 150K 1 10W F a MAIN X R 0767 88 108 104 080 C RES U 100K 1 16W J a MAIN X R 0768 88 108 154 080 C RES U 150K 1 16W J a MAIN X R 0769 88 108 104 080 C RES U 10...

Страница 17: ...48 a NK O CN 0902 87 A90 507 010 HLDR WIRE 2 5 4P a NK O CN 0904 87 A61 126 080 MALE 1P TP42097 a NK O CN 0905 87 A61 060 080 CONN 1P V RED TP00706 a NK O CNA0901 8B JAB 690 010 CONN ASSY 1P CRT GND a...

Страница 18: ...B C E 2SB892 S T 8 8 A Resistor Code Chip Resistor Part Coding Figure Value of resistor Chip resistor Wattage Type Tolerance 1 16W 1 10W 1 8W 1608 2125 3216 5 5 5 CJ CJ CJ Form L W t 1 6 0 8 0 45 2 1...

Страница 19: ...19 WIRING 1 MAIN 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U...

Страница 20: ...20 SCHEMATIC DIAGRAM 1 MAIN 1 2...

Страница 21: ...21 SCHEMATIC DIAGRAM 2 MAIN 2 2...

Страница 22: ...22 WIRING 2 NK 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U...

Страница 23: ...23 SCHEMATIC DIAGRAM 3 NK...

Страница 24: ...24 IC BLOCK DIAGRAM...

Страница 25: ...25...

Страница 26: ...D used caption 17 CVIN CVIN used caption 18 VSS CNVSS used caption 19 XIN I Main clock 8MHz 20 XO O Main clock 8MHz 21 VSS GND 22 VCC VCC 23 FOMO O Forced mono switch 24 DGC O DGC switch 25 RST I Rese...

Страница 27: ...N901 PIN 2 G 1 V div 20 s div CN901 PIN 3 B 1 V div 20 s div D830 ANODE 50 V div 10 s div 1 2 3 4 D835 ANODE 10 V div 10 s div D836 ANODE 10 V div 10 s div IC1 PIN 1 BLK H 2 V div 50 s div IC1 PIN 2 B...

Страница 28: ...28 IC1 PIN 11 SD 2 V div 50 s div IC301 PIN 22 V OUT 20 mV div 5 ms div IC301 PIN 32 H OUT 20 mV div 50 s div 9 10 11 9 10 11...

Страница 29: ...about 0 3 V with flat envelope Confirm that ratio of the burst signal amplitude and the red signal amplitude is 0 30 0 66 If the output signal does not conform with the specifications calibrate the p...

Страница 30: ...wise looking from the CRT s back screen and disengage Be careful not to loose the lock ring too much If the magnet assembly has become shifted during adjustments secure it to the position in Fig 1 4 3...

Страница 31: ...king at the screen adjust the tilt of the deflecting yoke and tighten the DY lock screw 8 Shift the magnet assembly to the front toward the CRT funnel stop movement before the adjustment position and...

Страница 32: ...ke and the surface of the CRT funnel in order to secure the deflecting yoke Refer to Fig 1 9 Position of wedge Fig 1 9 Wedge Wedge Wedge In Fig 1 8 the two 6 pole magnets are stacked together so as to...

Страница 33: ...tting of OP1 to OP5 4 Operating Adjustment Mode 5 List of Electrical Adjustment 5 1 Screen Size and Position Adjustment 1 1 HPS 1 2 VPS 1 3 VSZ 1 4 OSP 5 2 Color and Brightness Adjustment 2 1 SCREEN 2...

Страница 34: ...keys FINISH When FINISH key found on the jig remote controller is pressed the integrating time of aging mode is reset This key is not used for normal repair 2 Details of Aging Mode Screen Press the T...

Страница 35: ...e Data OP1 to OP5 using the VOLUME or key 4 Press the TEST key twice to start the aging mode and check Data OP1 to OP5 is correct 5 Press the TEST key twice and remote the AC plug from outlet Setting...

Страница 36: ...VIDEO4 The movement 0 is applied if chroma IC is selected for selector IC VOL Volume Adjustment 0 Volume Adjustment 1 TA1201 1268 is used 1 Volume Adjustment 2 PWM is used Nothing is controlled if TA...

Страница 37: ...09 D6 0 1 TB1253 00 D7 or TA1201 09 D6 1 RF RF AGC 0 Pattern 1 No RF AGC OFF for external input 1 Pattern 2 RF AGC OFF for external input 4 OP4 0 1 2 3 4 5 6 7 PON 1 ROTATE VM SCR AV AFT P ON1 Image M...

Страница 38: ...Mute Method Audio Mute 1 TA1201 TA1286 is ATT 0 0 No 1 Yes AM2 Selection of Audio Mute Method Audio Mute 2 VOLUME output of PWM is 0 0 No 1 Yes AM3 Selection of Audio Mute Method Audio Mute 3 TA1216 i...

Страница 39: ...tment Mode 1 Press the TEST key once at the aging mode to start the adjustment mode 2 Press the CHANNEL I K key to switch over the adjustment menus as follows No adjustment requires for Menu 1 3 Use t...

Страница 40: ...the adjustment that requires mono scope signals use the image signals of test tapes TTV 06T PAL 625 LINE and TTV N06T NTSC 525 LINE played by VCR Be sure the color system for input signal VCR output...

Страница 41: ...cope SPEC CRT center and the mono scope centerline are merged MODE VIDEO 1 Input the LION mark signal by the mono scope 2 Use the VOLUME or key on the remote control to merge the centerlines located o...

Страница 42: ...e data value to the right edge of the screen Fig 1 7 5 2 Color and Brightness Adjustment 2 1 SCREEN Screen Adjustment TV Measuring instrument setting Input Signal No Input Adjustment point T601 FBT lo...

Страница 43: ...stment TV Measuring instrument setting Input signal NTSC dot pattern Adjustment point T601 FBT upper SFR MODE VIDEO 1 Input the dot pattern signal by the pattern generator 2 Adjust FBT upper SFR so th...

Страница 44: ...till a blue tinge disappears 7 Repeat the steps 1 to 6 so that the screen is tinged with white Fig 2 6 Note After adjustment be sure to apply SBT Sub Brightness Adjustment 5 3 Tuning Adjustment 3 1 RF...

Страница 45: ...OUTPUT IC301 54PIN DEEMPHASIS SPEC 4 0 0 2VDC Adjustment Point L201 MODE TUNER 1 Connect the oscilloscope to IC301 54 PIN 2 Input the specified input signal to IC301 52 PIN and adjust L201 so that th...

Страница 46: ...ulation of NTSC US MPX SOUND MODULATOR to 300Hz 6 Input the specified input signal to ANT and adjust the test point waveform to minimum using the VOLUME or key on the remote control SPE SPECTRAL Adjus...

Страница 47: ...47 MECHANICAL EXPLODED VIEW 2 1 4 10 13 11 14 19 12 C C D D 15 F F E E 16 18 17 B B B B 8 8 9 9 A A A 20 21 6 7 5 3 G G G TV AS216 NH2C FileName TVAS216 EPS 13 12 12 BJA A...

Страница 48: ...ILLE SPKR L a O 5 8B JAN 003 010 GRILLE SPKR R a O 6 8B JAN 005 010 LENS RC a O 7 8B JAN 004 010 KEY MAIN a O 8 8B JES 201 010 BOX SPKR a O 9 8B JAU 621 010 SPKR 8 8OHM 5W NOM 3W a O 10 8B JAA 650 010...

Страница 49: ...r ST Titan Silver T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green LD Dark Blue DT Transparent Orange GM Metallic Green...

Страница 50: ...and O are designated as spare parts for service and will be stocked at the spare parts centers Components marked X and R are not designated as spare parts for after sales service and will not be stock...

Страница 51: ...NAME SUFFIX MODEL 51 OTHER PARTS LIST TV AS216 NH2C LBL POP X 8B JAA 970 010 LBL POP D a PAKING X 87 B40 329 010 BAG FOAMED 0 31 1250 900 a PAKING X 87 066 133 010 BAG PV 0 04 75 280 a PAKING X 8B JA...

Страница 52: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111 2000068 9430209 921338...

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