Aiwa TV-AS216 Service Manual Download

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SERVICE MANUAL

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).

Summary of Contents for TV-AS216

Page 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 ...

Page 2: ...RING 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 ELECTRICAL ADJUSTMENT 33 46 MECHANICAL EXPLODED VIEW 47 MECHANICAL PARTS LIST 48 COLOR NAME TABLE 49 ACCESSORIES PARTS LIST 50 OTHER PARTS LIST 51 TABLE OF CONTENTS ...

Page 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 Æ80 mm 31 4 in Operating Voltage 120V AC 60Hz Power Consumption 72W Phones Jack Stereo mini jack Operating Temperature 5O C 40O C Operating Humidity 35 80 Dimensions 542 W x 440 H x 478 D mm 213 8 x 173 8 x 187 8 in Weight 21 8kg 47 96 lbs Desig...

Page 4: ...TV 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 ray tube By setting an explosion proof cathode ray tube in this equipment safety is secured against implosion However when removing it or servicing from the back it gives out shock that is dangerous ...

Page 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 See Figure 2 1 1 Connect a flat bladed screwdriver to the CRT GND via an alligator clip 2 Use a tester to check the end of the screwdriver and ground of the TV for continuity 3 Touch the hook with t...

Page 6: ...r 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 cap See Figure 3 1 2 If you have attached the anode cap before arranging the high voltage cable arrange the cable carefully so the cap does not turn 3 2 Anode cap reinstallation 1 Use a clean cloth moi...

Page 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 forefinger over the projection at the center of the cap and hold the cap between your thumb and middle finger See Figure 3 5 Figure 3 4 Figure 3 5 High voltage cable Anode cap ...

Page 8: ...r 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 the andoe cap slightly to improve the close contact between the cap and CRT 11 Check that the anode cap is in close contact with the CRT See Figure 3 8 Figure 3 8 Figure 3 7 Figure 3 6 Anode cap Ski...

Page 9: ...r 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 direction with arrow A and set it up See Figure 5 1 Figure 5 1 CN881 Front cabinet CN406 Speakers NK C B CN901 CN902 MAIN C B CN904 CN801 Power Cord Figure 4 1 Degaussing Coil ...

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Page 18: ...B 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 25 0 45 3 2 1 6 108 118 128 A A CHIP RESISTOR PART CODE 0 55 Resistor Code Dimensions mm Symbol 1 16W 1005 5 CJ 1 0 0 5 0 35 104 L t W S D G E B C ...

Page 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 ...

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

Page 21: ... 21 SCHEMATIC DIAGRAM 2 MAIN 2 2 ...

Page 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 ...

Page 23: ... 23 SCHEMATIC DIAGRAM 3 NK ...

Page 24: ... 24 IC BLOCK DIAGRAM ...

Page 25: ... 25 ...

Page 26: ...LD 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 Reset 26 BBE I BBE 27 P DET I Power detect 28 BURST DET I Burst level input 29 AFTV I AFT voltage input 30 KEY I Key input 31 SDA2 I O I2 C bus CH2 data REG IC 32 SDA1 I O I2 C bus CH1 data EEPROM 33 SCL...

Page 27: ...01 PIN 2 G 1 V div 20 µs div CN901 PIN 3 B 1 V div 20 µs div D830 ANODE 50 V div 10 µs div 1 2 3 4 D835 ANODE 10 V div 10 µs div D836 ANODE 10 V div 10 µs div IC1 PIN 1 BLK H 2 V div 50 µs div IC1 PIN 2 BLK V 2 V div 5 ms div 5 6 7 8 1 5 2 6 3 7 4 8 ...

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

Page 29: ... of 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 pattern generator Refer to pattern generator operation manual Use the LEADER LCG 404 for the pattern generator Fig 1 1 Approx 0 3V Approx 0 3V Burst signal 1 Vp p White Approx 75 Approx 0 7V Yellow ...

Page 30: ...kwise 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 Beam convergence adjustment 6 pole magnet With a 4 pole magnet align the G beam with the already aligned R B beam G R B RGB magenta white Align the G beam with the R B beam Fig 1 3 CRT DY DY lock sc...

Page 31: ...oking 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 then tighten the magnet lock screw At this time be careful not to shift the position of the purity magnet R B As there is occurrence of convergence distortion after completing the landing adjustments...

Page 32: ...oke 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 be of the same polarity Move the B and R beams to their respective direction by rotating the two 6 pole magnets together By adjusting the opening of the two magnets it is possible to adjust the amou...

Page 33: ...etting 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 2 SBT 2 3 STT 2 4 SCR 2 5 FOCUS 2 6 WHITE BALANCE 5 3 Tuner Adjustment 3 1 RFA 3 2 PIF 3 3 SIF 3 4 ATT 3 5 WBD SPE ELECTRICAL ADJUSTMENT ...

Page 34: ...n 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 TEST key once to enter the aging mode During aging mode the auto power off function for input absence is deactivated This mode is used for applying aging warm up before CRT adjustment Following displa...

Page 35: ...re 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 completes Be sure to remove the AC plug to end Conversion of Data OP1 to OP5 The data value of OP1 to OP5 is displayed in the hexadecimal system For checking the details convert the data as follows E...

Page 36: ...3 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 TA1201 is not selected but Volume Adjustment 1 is selected P DET POWER DETECT Problem Detection Standby Time 0 1 0 second 1 1 5 seconds 2 2 0 seconds 3 2 5 seconds 2 OP2 0 1 2 3 4 5 6 7 GAME GAME V GAM...

Page 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 Mute Time at P ON Switched between P ON1 and P ON2 PON1 0 PON1 1 PON2 0 2 7 seconds 10 seconds PON2 1 3 5 seconds 5 seconds ROATE Direction Adjustment Existence 0 No 1 Yes No displays on the menu scre...

Page 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 is MT1 MT2 0 VOLUME DATA 0 0 No 1 Yes AM4 Selection of Audio Mute Method Audio Mute 4 LMUTE Port is output by H to mute Works as VIDEO OUT mute 0 No 1 Yes AM5 Selection of Audio Mute Method Audio Mute...

Page 39: ...stment 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 the VOLUME or key to change the data ...

Page 40: ...r 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 signal In this manual the values measured with SHIBASOKU made mono scope and the percentages of screen size are used as the adjustment values of screen size measured with a mono scope PAL NTSC When a...

Page 41: ...pe 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 on the right and left edge of the mono scope screen and the CRT center mark Fig 1 3 TV Measuring instrument setting VPS Simple Adjustment Input signal NTSC Crosshatch SPEC CRT center and the center of cr...

Page 42: ...he 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 lower SFR MODE VIDEO 1 Display the adjustment mode screen using the jig remote control 2 Press the number key 10 key on the jig remote control to display the hori zontal line screen 3 Adjust the horizo...

Page 43: ...ustment 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 that dot pattern is accurately in focus 2 6 WHITE BALANCE White Balance Adjustment This adjustment requires CA 100 CRT COLOR ANALYZER TV Measuring instrument setting Adjustment Page RCO R CUT OFF GCO G...

Page 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 RFA RF AGC Adjustment TV Measuring instrument setting Input Signal NTSC color bar FULLFIELD Input level 60dBuV Channel fp 199 25MHz Test point TU101 1PIN RF AGC SPEC 3 5 0 5VDC MODE TUNER 1 Connect the...

Page 45: ...N 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 the voltage level of IC301 54 PIN becomes 4 0 0 2VDC 3 4 ATT ATT Adjustment TV Measuring instrument setting Input Signal FREQUENCY US 11ch 199 25MHz Test Point IC251 21PIN L OUT SPEC 300mV 3mVp p MODE ...

Page 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 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 u...

Page 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 ...

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Page 49: ...er 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 YM Metallic Yellow DM Metallic Orange PT Transparent Pink LA Aqua Blue GL Light Green HT Transparent Gray HM Metallic Gray NH Champagne Gold M Wood Pattern COLOR NAME TABLE ...

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

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