Aiwa XR-DVH2450 Service Manual Download Page 27

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< TUNER SECTION >

1. Clock Frequency Check

Settings : • Test point : TP2 (CLK)
Method : Set to MW 1602kHz and check that the test point is

2052kHz

45Hz.

2. MW VT Adjustment

Settings : • Test point : TP1 (VT)

• Adjustment location : L981(3/3)

Method : Set to MW 1710kHz and adjust L981(3/3) so that the

test point becomes 7.5V

0.05V. Then set to MW

530kHz and check that the test point is more than 0.3V.

3. MW Tracking Adjustment

Settings : • Test point : TP8(Lch), TP9(Rch)

• Adjustment location :
L981(1/3) ........................................ 603kHz
TC941 ........................................... 1404kHz

Method : Set up TC941 to center before adjustment.

The level at 603kHz is adjust to max. by L981(1/3).
Then the level at 1404kHz is adjust to max. by TC941.

4. AM IF Adjustment

Settings : • Test point : TP8(Lch), TP9(Rch)

• Adjustment location :
L772 ................................................ 450kHz

5. SW VT Adjustment

Settings : • Test point : TP1(VT)

• Adjustment location : L942

Method : Set to SW 17.9MHz and adjust L942 so that the test

point becomes 6.5V

0.05V. Then set to SW 5.73MHz

and check that the test point is more than 0.3V.

ADJUSTMENT <TUNER> (MX-NDVH2450)

6. SW Tracking Adjustment

Settings : • Test point : TP8(Lch), TP9(Rch)

• Adjustment location :
L941 ............................................. 5.73MHz
TC942 .......................................... 17.9MHz

Method : Set up TC942 to center before adjustment.

The level at 5.73MHz is adjust to max. by L941.
Then the level at 17.9MHz is adjust to max. by TC942.

7. FM VT Check

Settings : • Test point : TP1 (VT)
Method : Set to FM 87.5MHz, 108.0MHz and check that the test

point is more than 0.5V (87.5MHz) and less than 8.0V
(108.0MHz).

8. FM Tracking Check

Settings : • Test point : TP8(Lch), TP9(Rch)
Method : Set to FM 98.0MHz and check that the test point is

less than 9dB

9. DC Balance / Mono Distortion Adjustment

Settings : • Test point : TP3, TP4 (DC Balance)

: TP8(Lch), TP9(Rch) (Distortion)

• Adjustment location : L771
• Input level : 60dB

Method :

Set to FM 98.0MHz and adjust L771 so that the
voltage between TP3 and TP4 is 200mV

3dB with

minimum distortion.

Summary of Contents for XR-DVH2450

Page 1: ...e Revision Publishing and replaces Simple Manual XR DVH2450 HC S M Code No 09 009 437 2T1 If requiring information about the DVD mechanism see Service Manual of AZG D ZFAPAM S M Code No 09 00A 350 6N2 XR DVH2450 DVD CD PLAYER SYSTEM STEREO RECEIVER REMOTE CONTROLLER SX NDPH2100 SX C2700 SX R2700 MX NDVH2450 DX NDVH2450 CASSETTE DECK GRAPHIC EQUALIZER SPEAKERS FX NDVH2450 GE NDVH2450 RC AAS03 ...

Page 2: ...TION 31 WIRING MAIN FRONT KEY CONN 32 SCHEMATIC DIAGRAM MAIN FRONT KEY CONN 33 FL 10 BT 232GNK GRID ASSIGNMENT AND ANODE CONNECTION 34 IC DESCRIPTION 35 36 MECHANICAL EXPLODED VIEW 1 1 37 MECHANICAL PARTS LIST 1 1 38 MODEL NO FX NDVH2450 ELECTRICAL MAIN PARTS LIST 39 40 TRANSISTOR ILLUSTRATION 41 WIRING 1 MAIN FRONT 1 FRONT 2 42 SCHEMATIC DIAGRAM MAIN FRONT 1 FRONT 2 DECK HEAD 1 HEAD 2 43 WIRING 2...

Page 3: ...vad som specificeras i denna bruksanvising kan användaren utsättas för osynling laserstrålning som överskrider gränsen för laserklass 1 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING CAUTION Use of controls or adjustments or performance of proce dures other than those specified herin may result in hazardous radiation exposure ATTENTION L utillisation de commandes réglages ou procédures autres...

Page 4: ...p 75 ohms unbalanced C output 0 286 Vp p VIDEO OUT Video composite output 1 Vp p 75 ohms unbalanced one RCA jack Operating conditions 5 0 C to 35 0 C 41 0 F to 95 0 F Dimensions of main unit 284 x 101 x 315 mm W x H x D Weight of main unit 3 3 kg CASSETTE DECK FX NDVH2450 Track format 4 tracks 2 channels stereo Frequency response Type II high CrO2 tape 50 Hz 16000 Hz Type I normal tape 50 Hz 15000...

Page 5: ...ES PACKAGE LIST 1 8A DJV 701 010 RC UNIT RC AAS03 2 8A SAM 911 010 IB H EC K M 3 87 006 226 010 AM LOOP ANT C0 4 87 043 115 010 ANT FEEDER FM 5 87 050 103 010 CORD PIN 1PY1 5M 6 87 A90 119 010 ANT WIRE SW 5M 7 87 A91 015 010 PLUG CONVERSION JT 0475A ...

Page 6: ...5 M SMG C104 87 016 658 000 CAP E 4700 35 M SMG C105 87 012 368 080 C CAP S 0 1 50 F C106 87 012 368 080 C CAP S 0 1 50 F C107 87 012 368 080 C CAP S 0 1 50 F C108 87 012 368 080 C CAP S 0 1 50 F C109 87 010 196 080 CHIP CAPACITOR 0 1 25 C110 87 010 196 080 CHIP CAPACITOR 0 1 25 C111 87 010 196 080 CHIP CAPACITOR 0 1 25 C112 87 010 196 080 CHIP CAPACITOR 0 1 25 C113 87 010 247 080 CAP ELECT 100 50...

Page 7: ...7 10V C611 87 010 405 080 CAP ELECT 10 50V C612 87 010 112 080 CAP ELECT 100 16V C613 87 010 173 080 C CAP S 390P 50 SL C614 87 010 173 080 C CAP S 390P 50 SL C615 87 010 316 080 C CAP S 33P 50 CH C616 87 010 316 080 C CAP S 33P 50 CH C668 87 010 190 080 S CHIP F 0 01 C701 87 010 402 080 CAP ELECT 2 2 50V C702 87 010 402 080 CAP ELECT 2 2 50V C703 87 016 669 080 C CAP S 0 1 25 K B C704 87 016 669 ...

Page 8: ...0 1 25 C201 87 010 192 080 C CAP S 0 022 50 F C202 87 010 498 040 CAP E 10 16 GAS C203 87 016 081 080 C CAP S 0 1 16 RK C204 87 010 981 040 CAP E 22 35 5L SRE C205 87 010 194 080 CAP CHIP 0 047 C206 87 010 405 040 CAP E 10 50 C207 87 010 194 080 CAP CHIP 0 047 C208 87 A10 189 040 CAP E 220 10 C209 87 010 071 040 CAP E 1 50 M 5L SRE C211 87 012 140 080 CAP 470P C220 87 016 669 080 C CAP S 0 1 25 K ...

Page 9: ...080 CHIP CAPACITOR 0 1FZ 25Z C774 87 010 263 080 CAP ELECT 100 10V C775 87 010 404 080 CAP ELECT 4 7 50V C777 87 010 400 080 CAP ELECT 0 47 50V C778 87 010 401 080 CAP ELECT 1 50V C779 87 010 401 080 CAP ELECT 1 50V C780 87 010 196 080 CHIP CAPACITOR 0 1 25 C781 87 010 405 080 CAP ELECT 10 50V C782 87 010 405 080 CAP ELECT 10 50V C783 87 012 286 080 CAP U 0 01 25 C784 87 012 286 080 CAP U 0 01 25 ...

Page 10: ...7L C825 87 010 196 080 CHIP CAPACITOR 0 1 25 C829 87 015 691 080 CAP E 0 1 50 7L C830 87 015 693 080 CAP E 0 33 50 7L C831 87 010 971 080 C CAP S 4700P 50 B J C832 87 012 349 080 C CAP S 1000P 50 CH C837 87 010 971 080 C CAP S 4700P 50 B J C838 87 012 349 080 C CAP S 1000P 50 CH C839 87 015 695 080 CAP E 1 50 7L C840 87 015 695 080 CAP E 1 50 7L C841 87 A10 799 080 C CAP S 5600P 16 J B CM C842 87 ...

Page 11: ...RN1410 RT1N141C RT1N144C 2SA1235 2SA1514 2SC2714 2SC3052 2SC3326 2SD1306 E C B DTC114ES 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 ...

Page 12: ...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 12 A B C D E F G H I J K L M N O P Q R S T U WIRING 1 MAIN VM CONN 10P MX NDVH2450 Z ...

Page 13: ... 13 SCHEMATIC DIAGRAM 1 MAIN VM CONN 10P MX NDVH2450 ...

Page 14: ...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 14 A B C D E F G H I J K L M N O P Q R S T U WIRING 2 FRONT MX NDVH2450 ...

Page 15: ... 15 SCHEMATIC DIAGRAM 2 FRONT MX NDVH2450 ...

Page 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 16 WIRING 3 TUNER MX NDVH2450 TP8 TP9 TP8 LCH TP9 RCH ...

Page 17: ... 17 SCHEMATIC DIAGRAM 3 TUNER MX NDVH2450 ...

Page 18: ...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 18 WIRING 4 SUB TRANS AC1 H AC1 SW AC2 MX NDVH2450 ...

Page 19: ... 19 SCHEMATIC DIAGRAM 4 AC1 SUB TRANS AC2 AC1 SW MX NDVH2450 ...

Page 20: ...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 20 WIRING 5 PRO LOGIC MX NDVH2450 ...

Page 21: ... 21 SCHEMATIC DIAGRAM 5 PRO LOGIC MX NDVH2450 ...

Page 22: ... 22 FL 10 BT 218GNK GRID ASSIGNMENT AND ANODE CONNECTION MX NDVH2450 GRID ASSIGNMENT ANODE CONNECTION ...

Page 23: ... 23 IC BLOCK DIAGRAM MX NDVH2450 IC NJM2152M ...

Page 24: ... 24 ...

Page 25: ...onnected 16 NC Not connected 17 IC Connect to GND 18 VSS GND 19 VDD Power supply terminal 20 LED MD O MD LED output 21 TM BASE I Time base input 22 TUNE IFO I Tuning detection input 23 STEREO I Stereo detection input 24 NC Not connected 25 I RE VOL A I Rotary Encoder Input A B 26 I RE VOL B 27 LED CD O CD LED output 28 NC Not connected 29 RDS CLK I TUNER RDS IC clock input Not used 30 RESET I Rese...

Page 26: ...LED VIDEO O Video LED output 54 58 P1 P5 O FL segment P1 P5 output 59 P6 SEL3 I O FL segment P6 output Select 3 diode input Not used 60 P7 SEL2 I O FL segment P7 output Select 2 diode input 61 P8 SEL1 I O FL segment P8 output Select 1 diode input Not used 62 P9 O FL segment P9 output 63 P10 DEMO I O FL segment P10 output DEMO select diode input Not used 64 P11 O FL segment P11 output 65 78 P12 P25...

Page 27: ...Method Set to SW 17 9MHz and adjust L942 so that the test point becomes 6 5V 0 05V Then set to SW 5 73MHz and check that the test point is more than 0 3V ADJUSTMENT TUNER MX NDVH2450 6 SW Tracking Adjustment Settings Test point TP8 Lch TP9 Rch Adjustment location L941 5 73MHz TC942 17 9MHz Method Set up TC942 to center before adjustment The level at 5 73MHz is adjust to max by L941 Then the level ...

Page 28: ... 24 26 27 FL PWB PWB PWB PWB 17 PWB HT SINK FIN2 HT SINK FIN4 HT SINK FIN1A HT SINK FIN1A HT SINK FIN1A HT SINK FIN2 HT SINK FIN4 HT SINK MAIN HT SINK DIODO PWB CHAS MAIN C B B A A A A A A A A A A A A A A A J A A A A A A A D D D A D E E F C G H H H H I 12 14 PLATE EARTH PLATE EARTH a a VOL SELECTER 15 28 PLATE SHLD S ...

Page 29: ... 87 A80 083 010 AC CORD HC BLK 25 87 085 185 010 BUSHING AC CORD E 26 87 085 213 010 FOOT H12 5 27 8Z NB8 254 010 COVER PL M3 28 87 A90 978 010 F BEAD 7 94 12 7 12 7 HF 70 RH A 87 067 703 010 TAPPING SCREW BVT2 3 10 B 87 591 094 410 TAPPING SCREW QIT 3 6 C 87 067 688 010 BVTT 3 6 D 87 B10 091 010 UTT2 3 10 W O BLK E 87 078 200 010 S SCREW ITC 4 8 R F 87 721 095 410 QT2 3 8GLD W O SLOT G 87 067 822...

Page 30: ...P 0 01 DM C8 87 010 314 080 C CAP S 22P 50V C9 87 010 318 080 C CAP S 47P 50 CH C10 87 010 316 080 C CAP S 33P 50 CH C11 87 010 196 080 CHIP CAPACITOR 0 1 25 C12 87 010 197 080 CAP CHIP 0 01 DM C14 87 010 405 040 CAP E 10 50 C15 87 010 405 040 CAP E 10 50 C51 87 015 698 080 CAP E 4 7 50 M 7L SRA C201 87 018 134 080 CAPACITOR TC U 0 01 16 C202 87 010 197 080 CAP CHIP 0 01 DM C203 87 010 197 080 CAP...

Page 31: ...sistor 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 ...

Page 32: ...WIRING MAIN FRONT KEY CONN DX NDV2450 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 32 A B C D E F G H I J K L M N O P Q R S T U ...

Page 33: ... 33 SCHEMATIC DIAGRAM MAIN FRONT KEY CONN DX NDVH2450 ...

Page 34: ... 34 FL 10 BT 232GNK GRID ASSIGNMENT AND ANODE CONNECTION DX NDVH2450 ANODE CONNECTION GRID ASSIGNMENT ...

Page 35: ...switch A D input 23 I DISH S I CD turntable photo sensor A D input 24 B SKIP I BLANK SKIP A D input 25 I KEY1 I Key1 A D input 26 I KEY2 I Key2 A D input 27 28 NC Connected to pull up resistor 29 A VDD Power supply terminal 30 A VREF Power supply terminal 31 XT1 Connect to GND 32 XT2 Not used 33 VSS GND 34 X1 4 19MHz oscillator circuit 35 X2 36 O SHIFT O Micro controller clock shift output Shift w...

Page 36: ...sistor 55 62 P20 P13 O FL segment output P20 P13 63 64 P21 P22 O FL segment output P21 P22 65 67 P5 P7 O FL segment output P5 P7 68 70 P12 P10 O FL segment output P12 P10 71 VFL FL display negative supply terminal 72 73 P9 P8 O FL segment output P9 P8 74 77 P4 P1 O FL segment output P4 P1 78 80 G10 G8 O FL grid output G10 G8 ...

Page 37: ... 37 MECHANICAL EXPLODED VIEW 1 1 DX NDVH2450 14 2 3 4 5 6 7 8 PWB PWB PWB 21 A A A E B B FL 9 a a 10 11 12 16 AZG D CHAS MAIN A D 1 b b D 17 18 19 20 C C C 13 C 15 PWB ...

Page 38: ...M 002 010 PANEL TRAY 3 87 CE3 023 010 BADGE AIWA 30N SILV 4 8A SVM 001 010 CABI FR 5 8Z SX1 009 010 REFLECTOR DISC 6 8Z SX1 005 010 KEY DISC 7 8Z SX1 201 110 HLDR CD 8 8A SX1 004 010 KEY OPEN 9 8A SVM 008 010 KEY ASSY OPE 10 88 SX1 203 210 GUIDE FL 11 8A SVM 202 010 GUIDE LED OPE 12 8Z SX1 203 110 GUIDE LED DISC 13 8A SVM 011 010 PANEL SIDE L 14 8A SVM 022 010 CABI STEEL V 15 8A SVM 012 010 PANEL ...

Page 39: ... 080 C CAP S 2700P 50 B C360 87 010 183 080 C CAP S 2700P 50 B C363 87 A10 292 080 CAP M 5600P 50 J C370 87 010 196 080 CHIP CAPACITOR 0 1 25 C371 87 010 179 080 CAP CHIP S B1200P C372 87 010 179 080 CAP CHIP S B1200P C373 87 010 179 080 CAP CHIP S B1200P C374 87 010 179 080 CAP CHIP S B1200P C375 87 010 545 080 CAP ELECT 0 22 50V C376 87 010 545 080 CAP ELECT 0 22 50V C378 87 010 196 080 CHIP CAP...

Page 40: ...87 A90 095 080 SW TACT EVQ11G04M W702 88 907 301 110 FF CABLE 7P 1 25 DECK C B CN502 87 099 756 010 CONN 15P 9604S F M1 87 045 347 010 MOT SHU2L 70 SFR1 87 024 581 010 SFR 3 3K DIA6V K0A SOL1 82 ZM3 621 110 SOL ASSY 27 KO SOL2 82 ZM3 621 110 SOL ASSY 27 KO SW1 87 A90 248 010 SW MICRO ESE11SH2CXQ SW2 87 A90 248 010 SW MICRO ESE11SH2CXQ SW3 87 A90 248 010 SW MICRO ESE11SH2CXQ SW4 87 036 110 010 PUSH...

Page 41: ... 41 TRANSISTOR ILLUSTRATION FX NDVH2450 E C B 2SC1815GR 2SC3266GR KTC3198GR 2SA1296 E C B S G D 2SK2158 E B C 2SC3052F CSA1362GR RN1410 RT1N141C RT1N144C RT1P141C E C B 2SA933AS R ...

Page 42: ...WIRING 1 MAIN FRONT 1 FRONT 2 FX NDV2450 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 42 A B C D E F G H I J K L M N O P Q R S T U ...

Page 43: ... 43 SCHEMATIC DIAGRAM MAIN FRONT 1 FRONT 2 DECK HEAD 1 HEAD 2 FX NDVH2450 ...

Page 44: ...WIRING 2 DECK HEAD 1 HEAD 2 FX NDV2450 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 44 A B C D E F G H I J K L M N O P Q R S T U ...

Page 45: ... 45 IC BLOCK DIAGRAM FX NDVH2450 ...

Page 46: ...hile FF fast flashing 23 D REV O When Power is ON L under STOP status When RVS operates flashing L H repeated While REW fast flashing 24 D PAUSE O When Power is ON L under STOP status While PAUSE flashing L H repeated 25 D REC O While REC DUBBING L While REC MUTE flashing 26 D NR O When NR is ON L Not used 27 O MOTOR O When MOTOR is in operation or power on 500msec H 28 O SOL2 O When DECK 2 soleno...

Page 47: ...1 or 2 mode L 39 I KEY2 I KEY input 2 AD input 40 I KEY1 I KEY input 1 AD input 41 I MS I MS input AD input 42 I HOLD I System power supply monitor AD input Description Pin No Pin Name I O P1N NO 22 23 24 25 and 26 should be H when MX NDVH2450 is in DIMMER 2 mode ...

Page 48: ... the test point becomes 245mV DECK2 260mV DECK1 5 PB Frequency Response Check DECK1 DECK2 Settings Test tape TTA 300 Test point TP1 Rch TP2 Lch Method Play back the 315Hz and 10kHz signals of the test tape and check that the output ratio of the 10kHz signal with respect to that of the 315Hz signal is 0dB Next check that the Lch and Rch difference level of 10kHz signal is less than 2dB 6 REC PB Sen...

Page 49: ...49 MECHANICAL EXPLODED VIEW 1 1 FX NDVH2450 1 2 3 4 4 5 6 7 8 9 10 11 12 13 13 14 15 17 18 19 20 PWB PWB PWB 21 22 22 23 23 24 16 28 A B B A A A A A PLATE EARTH 2ZM 3MK2 PLATE SHLD MECHA C C C C 26 25 27 ...

Page 50: ... 8Z SW1 201 010 COVER REFLECTOR 1 6 82 NF5 218 010 SPR T EJECT 1 SIN 7 81 532 080 010 LABEL CASS COMPT 8 8A SW1 005 010 WINDOW CASS 2 9 8A SW1 003 010 BOX CASS 2 10 82 NF5 219 010 SPR T EJECT 2 SIN 11 8Z SW1 202 010 COVER REFLECTOR 2 12 8A SW1 001 010 CABI FR 13 87 NF8 220 010 DMPR 150 14 8A SW1 011 010 KEY ASSY REC 15 8Z SW1 012 010 KEY ASSY OPE 16 8A SW1 028 010 CABI REAR W O SPEC 17 8Z SW1 206 ...

Page 51: ... 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 19 20 20 21 21 GEAR PLAY GEAR PLAY 23 23 24 24 26 28 28 PWB 27 29 38 29 30 29 38 32 31 29 30 31 32 58 59 10 33 33 34 35 35 36 57 37 37 39 43 43 39 40 40 41 42 22 42 44 45 46 47 48 49 50 51 52 53 54 55 47 48 49 50 51 44 46 9 52 53 54 55 A C B A C B D D E 56 PWB 58 25 PWB 60 60 ...

Page 52: ...OUPLER N3 28 82 ZM1 255 310 SPR E LVR DIR 29 82 ZM1 217 410 REEL TABLE 30 82 ZM1 285 410 SPR C BT L 31 82 ZM1 333 210 PLATE LINK2 32 82 ZM1 222 310 LVR PLAY 33 82 ZM3 307 010 CUSH G DIA3 7 8 3 2 34 87 045 347 010 MOT SHU2L 70 35 82 ZM1 257 010 SPR T CAS 36 82 ZM3 340 010 SH BELT D2 37 82 ZM1 242 010 LVR CAS 38 82 ZM1 244 510 SPR C BT 39 82 ZM1 243 010 LVR STOP 40 82 ZM1 240 110 LVR REC 41 82 ZM1 2...

Page 53: ...SU1 605 010 FL BJ699GK L101 87 005 152 080 COIL 10UH L102 87 005 130 080 COIL 10UH L103 87 005 130 080 COIL 10UH L104 87 005 152 080 COIL 10UH L301 87 003 097 080 COIL 1UH LED201 87 A40 380 080 LED SEL6510C TP5 GRN LED202 87 A40 380 080 LED SEL6510C TP5 GRN LED203 87 A40 380 080 LED SEL6510C TP5 GRN LED204 87 A40 380 080 LED SEL6510C TP5 GRN LED205 87 A40 380 080 LED SEL6510C TP5 GRN LED206 87 A40...

Page 54: ... 54 TRANSISTOR ILLUSTRATION GE NDVH2450 E B C RN1410 ...

Page 55: ...WIRING MAIN GE NDVH2450 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 55 A B C D E F G H I J K L M N O P Q R S T U ...

Page 56: ... 56 SCHEMATIC DIAGRAM MAIN GE NDVH2450 ...

Page 57: ... 57 FL BJ699GK GRID ASSIGNMENT AND ANODE CONNECTION GE NDVH2450 GRID ASSIGNMENT ANODE CONNECTION ...

Page 58: ... 58 IC BLOCK DIAGRAM GE NDVH2450 ...

Page 59: ...0 23 NC Connected to GND 24 PRO LOGIC I Input prologic switch H when prologic L when not prologic Connected to GND 25 33 G1 G9 O FL gird output 34 40 S1 S7 O FL Segment output 41 VDD2 Connected to GND 42 VP Power FL display negative supply terminal 43 63 S8 S28 O FL Segment S8 S28 output 64 NC Not connected 65 66 LED ON O MULTI JOG LED output 67 69 NC Not connected 70 O L FREQ ON O Spectrum analyz...

Page 60: ... 60 MECHANICAL EXPLODED VIEW 1 1 GE NDVH2450 A A A A A A 4 5 6 7 8 9 a FL 10 PWB 14 PLATE DUMMY 1 2 3 B B 11 12 B B 13 a b b 15 ...

Page 61: ...nt Orange GM Metallic Green YM Metallic Yellow DM Metallic Orange PT Transparent Pink LA Aqua Blue 1 8Z SU1 007 110 KNOB RTRY JOG 2 8A SU1 006 010 RING JOG 3 8Z SU1 005 010 REFLECTOR JOG 4 8A SUM 009 010 WINDOW DISP H 2450 5 87 CE3 023 010 BADGE AIWA 30N SILV 6 8A SUM 007 010 CABI FR 2450 7 8A SUM 003 010 KEY PRO 8 8Z SU1 008 010 KEY GEQ 9 8A SU1 010 010 KEY ENTER 10 88 SU1 201 110 GUIDE FL 11 8A ...

Page 62: ...nd comes out Remove the grill frame and four pieces of rubber caps by pulling out with a flat bladed screwdriver Remove the screws from hole where installed rubber caps Insert a flat bladed screwdriver into the position indicated by the arrows and remove the panel Re move the screws of each speaker unit and then remove the speaker units TOOLS 1 Plastic head hammer 2 flat head screwdriver 3 Cut chi...

Page 63: ...PKR CERAMIC ASSY 9 88 SSM 603 010 SPKR TW 60 10 8Z SSM 004 010 SPACER DESCRIPTION REF NO KANRI NO PART NO 1 8A AS3 001 010 CABI FR 2 8A AS3 003 010 GRILLE FRAME ASSY 3 8A AS3 006 010 CABI FR C 4 8A NSJ 006 010 BADGE AIWA S35 5 8A AS3 008 010 GRILLE FRAME ASSY C 6 8Z AS1 601 010 SPKR 100 7 8Z AS1 602 010 SPKR 100 8 8A AS3 011 010 TERMINAL ASSY 9 8A AS3 603 010 SPKR CORD 20M SPEAKER PARTS LIST SX CR...

Page 64: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 Printed in Singapore 9620450 2000058 0251431 ...

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