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CT-IS21

14

A

B

C

D

1

2

3

4

1

2

3

4

DISPLAY ASSY
(AWU7373)

C

U-COM ASSY
(AWU7370)

B

DECK MECHA
UNIT (2/2)
(AXA7073
:MY, NV TYPES)
(AXA7082
:RBD TYPE)

PCB BINDER

PCB BINDER

D2602,D2603,
D2605-D2609:

CABLE
HOLDER

LED DRIVER

CN2701

CN2751

CN2601

J2601

3.3 U-COM AND DISPLAY ASSYS

B C

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Summary of Contents for CT-IS21

Page 1: ...RMATION 2 2 EXPLODED VIEWS AND PARTS LIST 3 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 10 4 PCB CONNECTION DIAGRAM 18 5 PCB PARTS LIST 24 6 ADJUSTMENT 27 CONTENTS 7 GENERAL INFORMATION 31 7 1 DIAGNOSIS 31 7 1 1 POWER ON SEQUENCE 31 7 1 2 DISASSEMBLY 32 7 2 PARTS 33 7 2 1 IC 33 8 PANEL FACILITIES AND SPECIFICATIONS 34 T IZM MAY 1999 Printed in Japan Type Model Power Requirement CT IS21 MY AC220 230V NV ...

Page 2: ... evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage wattage etc Replacement parts which have these special safety characteristics are identified in this Service Manual Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual...

Page 3: ...ypes only 9 RBD type only Mark No Symbol and Description Part No Remarks MY Type NV Type RBD Type 3 Packing Case Y AHD7788 Not used Not used 3 Packing Case V Not used AHD7789 Not used 3 Packing Case D Not used Not used AHD7786 7 Operating Instructions ARC7265 Not used Not used Spanish Portuguese Dutch Swedish 8 Operating Instructions English French German Italian ARE7234 ARE7234 Not used 9 Operati...

Page 4: ...2 25 31 33 33 32 32 32 34 34 13 34 3 24 1 2 28 3 3 28 1 3 27 2 2 26 1 2 26 2 2 22 21 23 27 1 2 28 2 3 16 36 20 24 2 2 12 33 33 29 32 32 18 33 5 17 17 6 Refer to 2 3 and 2 4 DECK MECHA NISM UNIT 33 33 35 A A 8 RBD type only 11 33 33 10 2 2 EXTERIOR ...

Page 5: ...See Contrast table 2 2 U COM Assy AWU7370 3 DISPLAY Assy AWU7373 4 MAIN Assy See Contrast table 2 5 REG Assy AWU7369 6 Deck Mechanism Unit See Contrast table 2 7 FU1 Fuse T250mA AEK1048 8 FU2 Fuse T315mA See Contrast table 2 9 T2000 Power Transformer ATT7051 10 AC Power Cord See Contrast table 2 11 Rear Panel See Contrast table 2 12 Rubber Sheet AEB1111 13 Spacer AEB7133 14 Nylon Rivet AEC 525 15 ...

Page 6: ...6 CT IS21 Refer to 2 4 DECK MECHANISM UNIT 2 2 12 9 16 4 11 10 14 4 7 8 3 18 16 16 20 19 5 17 6 1 13 16 16 2 2 20 21 20 2 3 DECK MECHANISM UNIT 1 2 ...

Page 7: ...T BLK F527 078 8 LDG Base FD56R 12 9 Pulley FD56T 11 10 LDG Gear FD56U 11 11 Slider FD57E 11 12 LDG Belt FF19L 12 13 Switch UE15S 14 14 MTR Reel BLK F564 313 15 16 Screw UG12H 28 17 SP Clamper FK34M 11 18 Switch UE18P 21 19 LUG UH12R 11 20 Earth Spring FK34S 11 21 LUG UH12T 11 1 DECK MECHANISM UNIT 1 2 PARTS LIST Mark No Description Part No ...

Page 8: ...8 CT IS21 20 24 41 42 43 39 22 26 30 13 1 25 38 16 18 6 35 32 7 32 17 28 29 9 3 36 37 30 23 27 33 14 15 5 11 8 3 9 12 19 1 40 4 2 2 21 34 10 31 31 2 4 DECK MECHANISM UNIT 2 2 ...

Page 9: ... 1 DECK MECHANISM UNIT 2 2 PARTS LIST Mark No Description Part No 2 CONTRAST TABLE AXA7073 and AXA7082 are constructed the same except for the following Mark No Symbol and Description Part No Remarks AXA7073 AXA7082 20 Assy F W FR24S 11 FR24S 21 22 Clutch Assy BLK F522 042 F522 048 Mark No Description Part No 23 Washer FJ111 13 24 F R Pulley FD53F 15 25 Solenoid BLK F765 279 26 F R Belt FF18W 12 2...

Page 10: ...SB1425 Q2702 2SB1296 Q2703 DTC124EK Q2704 DTA124EK Q2752 DTA143EK Q2751 DTA143EK Q2753 Q2754 Q2756 Q2755 Q2753 2756 2SD1858X VR2802 PCP1032 100K B VR2801 PCP1032 100K B Q2805 2SC1815 Q2802 2SC1815 Q2804 DTC124EK Q2803 2SB1238X Q2453 DTC124EK Q2454 DTA124EK Q2402 DTC114TK Q2452 2SD2114K Q2451 2SD2114K Q2401 DTC114TK Q2460 DTA124EK IC2401 1 2 BA4558F HT IC2401 2 2 BA4558F HT Q2301 2SK373 Q2302 2SK37...

Page 11: ...71 MY and NV types AWU7372 RBD type REG ASSY AWU7369 DISPLAY ASSY AWU7373 MAIN ASSY AWU7365 MY and NV types AWU7366 RBD type 2 3 4 5 1 AM56 NC SDATA REQ ENA SCLOCK GNDC GNDM GNDA GNDB NEUTRAL LIVE IC2201 HA12136AF Q2261 2SD2114K Q2172 2SD2114K Q2171 2SD2114K Q2173 DTA124EK Q2263 DTC143EK Q2262 2SD2114K DOLBY B NR LINEOUT Lch LINEOUT Rch LINEIN Lch LINEIN Rch LINEOUT BUFFER INPUT BUFFER MPX MS ALC ...

Page 12: ... RBD TYPE A NOTES ALL CAPACITORS ARE IN µF UNLESS OTHERWISE SPECIFIED ELECT PCB BINDER REC PB HEAD ERASE HEAD DECK MECHA UNIT 1 2 AXA7073 MY NV TYPES AXA7082 RBD TYPE CN2301 CN2302 D2301 D2306 1SS133 BA4558BF HT BA4558BF HT C2315 C2321 C2324 MY and NV types only 3 2 AF ASSY ...

Page 13: ...INDUCTORS ARE IN µF CHIP 1 10W 1 4W UNLESS OTHERWISE SPECIFIED CN2506 BA4558BF HT BA4558BF HT CN2101 1 4 CN2101 2 4 CN2101 4 4 CN2101 3 4 L REC PLAY L R R BA4558BF HT BA4558BF HT MTZJ6 2A D2252 D2255 1SS355 PLAYBACK SIGNAL ROUTE RECORDING SIGNAL ROUTE The power supply is shown with the marked box A ...

Page 14: ...3 4 DISPLAY ASSY AWU7373 C U COM ASSY AWU7370 B DECK MECHA UNIT 2 2 AXA7073 MY NV TYPES AXA7082 RBD TYPE PCB BINDER PCB BINDER D2602 D2603 D2605 D2609 CABLE HOLDER LED DRIVER CN2701 CN2751 CN2601 J2601 3 3 U COM AND DISPLAY ASSYS B C ...

Page 15: ...THERWISE SPECIFIED ELECT CHIP 1 10W S2901 S2904 S2906 S2912 ASG7013 SWITCHES DISPLAY ASSY S2901 STANDBY ON S2902 ASEB S2903 2 S2904 3 S2906 OPEN CLOSE 0 S2907 8 S2908 1 S2909 S2910 STOP 7 S2911 REVERSE MODE S2912 DOLBY NR 1SS133 MTZJ6 8C RESET CN2503 D CN2504 D CN2502 CN2501 The power supply is shown with the marked box B C ...

Page 16: ... AC IN AC POWER CORD PDG1003 MY TYPE VDG1062 NV TYPE PDG1013 RBD TYPE FU1 250mA 250V AEK1048 FU2 315mA 250V AEK1049 AWU7365 ONLY T2000 POWER TRANSFORMER ATT7051 AWU7366 ONLY S2001 VOLTAGE SELECTOR AKX7004 AC220 240V AC110 127V CN2551 SYSTEM CN2505 CN2001 SCREW TERMINAL 3 4 MAIN AND REG ASSYS D ...

Page 17: ...IN Ω UNLESS OTHERWISE SPECIFIED ELECT CHIP 1 10W 1 4W UNLESS OTHERWISE SPECIFIED CN2501 B CN2502 B CN2504 CN2503 CN2051 REGULATOR J2052 CABLE HOLDER REG ASSY AWU7369 E REGULATOR PCB BINDER NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE WITH SAME TYPE AND RATINGS ONLY CAUTION D E ...

Page 18: ...ions For further information for respective destinations be sure to check with the schematic diagram 4 View point of PCB diagrams Symbol In PCB Diagrams Symbol In Schematic Diagrams Part Name B C E D D G G S S B C E B C E D G S B C E B C E B C E Transistor Transistor with resistor Field effect transistor Resistor array 3 terminal regulator Capacitor Connector P C Board Chip Part SIDE A SIDE B CN25...

Page 19: ...1 VR2802 VR2401 VR2402 VR2301 VR2302 Q2805 Q2302 Q2301 Q2801 Q2802 ANP7329 B REC PB HEAD ERASE HEAD DECK MECHA UNIT Q2804 Q2304 Q2306 Q2352 Q2454 Q2255 Q2254 Q2253 IC2201 Q2453 Q2460 Q2353 Q2351 Q2305 Q2402 Q2452 Q2401 Q2451 Q2456 Q2455 Q2303 IC2401 IC2301 A ...

Page 20: ...C D 1 2 3 4 1 2 3 4 4 2 U COM AND DISPLAY ASSYS CN2503 D U COM ASSY B DISPLAY ASSY C CN2504 D SIDE A ANP7329 B ANP7329 B Q2701 Q2702 Q2753 Q2754 Q2755 Q2756 VR2701 CAPSTAN MOTOR TRAY LOADING MOTOR DECK MECHA UNIT B C ...

Page 21: ...CT IS21 21 A B C D 1 2 3 4 1 2 3 4 U COM ASSY B DISPLAY ASSY C SIDE B ANP7329 B ANP7329 B IC2502 Q2601 Q2703 Q2704 Q2057 Q2058 Q2059 Q2060 Q2561 IC2501 Q2563 Q2564 Q2562 Q2752 Q2751 B C ...

Page 22: ...CT IS21 22 A B C D 1 2 3 4 1 2 3 4 4 3 MAIN AND REG ASSYS MAIN ASSY D REG ASSY E SIDE A ANP7329 B ANP7329 B IC2051 IC2052 IC2053 IC2054 Q2051 IC1 CN2501 B CN2502 B CN2506 A AC IN LIVE NEUTRAL D E ...

Page 23: ...CT IS21 23 A B C D 1 2 3 4 1 2 3 4 MAIN ASSY D REG ASSY E SIDE B ANP7329 B ANP7329 B Q2052 Q2061 D E ...

Page 24: ...256 D2301 D2306 1SS133 D2252 D2255 D2307 D2308 D2401 1SS355 D2201 MTZJ6 2A COILS AND FILTERS L2802 LFA121J L2801 OSC COIL RTD1082 L2401 L2402 COIL 10mH RTF1004 L2403 L2404 COIL 4 7mH RTF1021 F2201 F2202 MPX FILTER RTF1217 CAPACITORS C2301 C2302 C2323 C2324 CCSQCH100D50 C2423 C2424 CCSQCH221J50 C2253 CCSQCH271J50 C2321 C2322 CCSQCH470J50 C2153 C2154 C2203 C2207 CEAT100M50 C2215 CEAT101M16 C2251 CEA...

Page 25: ... C2751 CKSQYB103K50 C2505 CKSQYB471K50 RESISTORS R2751 R2754 RD1 4PU391J R2708 RD1 4PU751J VR2701 1kΩ PCP1024 Other Resistors RS1 10S J OTHERS CN2601 8P JUMPER CONNECTOR 52151 0810 CN2701 KR CONNECTOR 13P B13B PH K S CN2751 KR CONNECTOR 5P B5B PH K S CN2501 15P SOCKET KP200TA15L CN2502 5P SOCKET KP200TA5L PCB BINDER VEF1040 X2501 CERAMIC RESONATOR VSS1045 6 00MHz DISPLAY ASSY SEMICONDUCTORS IC2502...

Page 26: ...2004 FUSE CLIP AKR1003 CN2503 CN2505 15P PLUG KM200TA15 CN2504 5P PLUG KM200TA5 TERMINAL RKC 061 PCB BINDER VEF1040 SCREW PLATE VNE1948 REG ASSY SEMICONDUCTORS IC2055 NJM7812FA IC2057 NJM78M05FA Q2056 2SD2395 CAPACITORS C2049 C2054 CEJA1R0M50 RESISTORS All Resistors RS1 10S J OTHERS 8P CABLE HOLDER 51048 0800 J2052 JUMPER WIRE 8P D20PYY0810G E ...

Page 27: ...ed with the key except for the REVERSE MODE and ASES keys However the REVERSE mode should endless fix for ageing LINE MUTE PB MUTE is opened in the REC pause and recording status Cancellation of the Test Mode Press the STANDBY ON key or disconnect the AC power cord About the Mechanism Ageing Mode When pressing the ASES and STOP keys for 3 seconds in the wall outlet on Deck power is on and the agei...

Page 28: ...er license from Dolby Laboratories Licensing Corporation DOLBY and the double D symbol are trademarks of Dolby Laboratories Licensing Corporation NCT 111 3 kHz VR2701 AF Assy Refer to Fig 6 4 No Mode Input Signal Test Tape Adjustment Points Measurement Points Adjustment Value Remarks PLAY 1 LINE OUT L R ch AF Assy 3000 Hz 10Hz 1 Tape Speed Adjustment STD 331E 10 kHz 20dB Head azimuth adjustment Sc...

Page 29: ...0 5dB Note Set the 10kHz input signal level to the same value as the 315Hz input signal level of step 1 Input a 315Hz signal to the LINE INPUT Remarks No Mode Input Signal Test Tape Adjustment Points Measurement Points Adjustment Value STD 331E test tape Playback 315 Hz 0 dB Remarks No Mode Input Signal Test Tape Adjustment Points Measurement Points Adjustment Value Remarks No Mode Input Signal Te...

Page 30: ...02 R ch VR2301 L ch VR2402 R ch VR2401 L ch Fig 6 4 Adjustment and Measuring Points PB LEVEL REC LEVEL VR2802 R ch VR2801 L ch BIAS LEVEL SIDE A SIDE A U COM ASSY AF ASSY MECHANISM UNIT Front Front Front REV Azimuth Adjustment Screw FWD Azimuth Adjustment Screw ...

Page 31: ... SW OFF Yes Yes Yes Yes Yes ERROR port Pin 3 port Pin 3 port Pin 2 Check the mecha switch port Pin 40 and Pin 41 CLOSE Pin 40 H Pin 41 L OPEN Pin 40 L Pin 41 H Check that the mecha is stop condition port Pin 17 L Initialize end Deck motor off port Pin 3 L Close it if the tray is opened port Pin 1 and Pin 47 CLOSE Pin 1 L Pin 47 H OPEN Pin 1 H Pin 47 L Yes Give up No No No No No No Perform the mech...

Page 32: ...k Bonnet IS CN2051 MAIN Assy CN2302 AF Assy AF Assy U COM Assy REG Assy MAIN Assy SIDE B Deck Mechanism Unit CN2301 AF Assy Note These screws are loosened Connect the above connectors Then diagnose the MAIN Assy Rear Panel IS 1 6 2 4 3 7 4 9 5 8 10 4 CN2601 4 6 7 MAIN ASSY 8 ...

Page 33: ...ND 33 LINEMUTE O Line mute control 10 6MHz I Connect a crystal resonator 34 LEDDATA O IC DATA output for LED control 11 6MHz O 35 LEDCE O IC OK output for LED control 12 E 5V Power supply 5V 36 LEDCLK O IC output for LED control 13 KEY1 I AD key data input 37 PB MUTE O CLK Not used 14 KEY2 I 38 MODEL I Model switch input 15 MS I MS audio signal input 39 DOLBY O DOLBY NR control 16 SENSE I Sensing ...

Page 34: ...34 CT IS21 8 PANEL FACILITIES AND SPECIFICATIONS PANEL FACILITIES ...

Page 35: ...esigned to reduce energy con sumption when the unit is in the power off standby mode Consult the Specifications for the power consumption in standby mode 1 STANDBY ON button and standby indicator This is the power switch ON When set to the ON position power is supplied and the unit becomes operational STANDBY When set to the STANDBY position the main power flow is cut and the unit is no longer ful...

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