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T-405TX

Ref. No . 3680
R

SERVICE MANUAL

052001

STEREO TUNER MODEL T-405TX

FM STEREO TUNER
PRESET TIMER MEMORY FM MODE

CLEAR
STANDBY/ ON

TUNING

DISPLAY CHARACTER

ACCUCLOCK

T-405TX

Silver models
SUPT SUDT 230V AC,50Hz 120V AC,60Hz

SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBER APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

T-405TX

SPECIFICATIONS
FM
T uning Range: 87.90 - 107.90 MHz, 200 kHz steps (U.S. & Canadian models) 87.50 - 108.00 MHz, 50 kHz steps (Ohter area models) Usable Sensitivity: Mono : 12.8 dBf 1.2 µV 75 Ohms IHF , Stereo: 19.2 dBf 2.5 µV 75 Ohms IHF , 50dB Quieting Sensitivity: Mono : 18.0 dBf 2.2 µV 75 Ohms , Stereo: 38.0 dBf 22 µV 75 Ohms , Capture Ratio : 1.5 dB Image Rejection Ratio : 85 dB IF Rejection Ratio : 90 dB Signal-to-Noise Ratio :Mono: 73 dB IHF Stereo: 66 dB IHF Selectivity :50 dB DIN (±300 kHz, 40 kHz dev .) AM Suppression Ratio : 50 dB T otal Har monic Distortion : Mono: 0.5% Stereo: 0.8% Frequency Response : 30 - 15,000 Hz (±1.5 dB) Stereo Separation :40 dB at 1 kHz 30 dB at 70 - D 10,000 Hz Output Level : 0.5 V (U.S.& Canadian models) 0.75 V (Other ar ea models) Muting Level : 17.2 dBf 2.0 µV, 75 Ohms

AM
T uning Range : 530 - 1,710 kHz, 10 kHz steps Usable Sensitivity : 30 µV Image Rejection Ratio 30 dB : IF Rejection Ratio : 40 dB Signal-to-Noise Ratio : 40 dB T otal Harmonic Distortion : 0.8% Output Level: 0.15 V

General
Power Supply : AC 120 V 60 Hz , AC 230-240 V 50 Hz , Power Consumption : 9 W Dimensions (W x H x D) : 205 x 76 x 279 mm 8-1/16" x 3" x 11" Weight : 1.7 kg, 3.7 lbs.

AM reception is available only on the U.S. and Canadian models. Specifcations and exter al appearance are subject to i n change without notice as a result of product improvement.

SERVICE PROCEDURES
1. Replacing the fuse
This symbol located near the fuses indicates that the fuse used is fast operating type. For continued protection against fire hazard, replace with same type fuse. For fuse rating refer to the marking adjacent to the symbol. Ce symbole indique que le fusible utlise est a rapide. Pour une protection permanente, n'untiliser que fusibles de meme type. Ce darnier est la qu le present symbol est appse. CIRCUIT NO. F901 PART NO. 252075 DESCRIPTION 2.5A-SE-EAK,Fuse

2. To initialize the unit
This device employs a microprocessor to perform various functions and operations. If interference generated by an external power supply, radio wave, or other electrical source results in accident which causes the specified operations and functions to operate abnormally. To perform a result, please follow the procedure below. 1.Set the unit to the standby mode 2.Press and hold down the MEMORY button, then press the DISPLAY button. 3.The segments of the F.L.tube light on and the unit is set to the test mode. 4.'Clear' is displayed when the power switch is pressed in the state of the test mode and the memory is cleared.

T-405TX BLOCK DIAGRAM
L101.L102 FM IF TRANSFORMER TR1 RF AMP TUNED CIRCUIT TR2 MIXER IFT Q101.Q102 FM IF AMP 1 9 21 Q103 FM IF SYSTEM/MPX AND AM RADIO SYSTEM LA1837 TR4 FM LOCAL OSCILLATOR TR3 BUFFER 6 7 11 14 AUTO/MONO MUTE OUT R101 FM MUTE LEVEL 15 30 20 18 16 Q106 MUTE SWITCH L104 L.P.F Left L103 L.P.F Q105 MUTE SWITCH 19 17 Q107 GATE CIRCUIT

Right

FM

ANTENNA TANK CIRCUIT

STEREO

Q174 FM+B SWITCH

FM 11 Q702.Q703 L.P.F 15

8 9 Q701 PLL SYNCHESIZER 10 AND CONTROLLER 7 LM7001 4 3 1 2

SIGNAL

12V

T901 NPT-1102 Q901 REGLATOR Q902 REGLATOR -VP F L TUBE P902

5

22 STEREO

X701 7.2MHz RESONATOR 41 DATA 40 CLK 39 PLL 23 SD

5.6V

RI IN/OUT

Q754 BUFFER

49 SYS OUT

46 SYS IN SEGMENT DIDIGT 34 27

17

Q753 RESET

X751 4.19MHz RESONATOR

Q752 F L TUBE 10-BT-167GK

35

28

19 MUTE

24 SIG

T-405TX EXPLODED VIEW
P901

T901 U3

U1

F901

U2

REF.NO. U1

PART NO. 1A907530-4C 1A907530-4D

DESCRIPTION NARF-6130-4C,Main circuit PC board ass'y

NARF-6130-4D,Main circuit PC board ass'y NADIS-6131-4C,Display PC board ass'y

NADIS-6131-4D,Display PC board ass'y NAPS-6133-4C,Power Transformer PC board ass'y



REF.NO. 1 2 3

PART NO. 27100337 27111039B 27122847 27122848

DESCRIPTION Chassis Front bracket Rear panel

Rear panel T,Retainer Leg KGLS-14RF,Holder Front panel Bushing Badge Cover Clear plate 3TTB+8B,Self tapping screw 3TTB+8B(BC),Self tapping screw 3TTB+8B(UN),Self tapping screw

U2

1A907531-4C 1A907531-4D

U3

1A907533-4C 1A907533-4D

4

27141695A 27175323 27190524 27212313 27300750 28135247Y 28184705-1 28191800C 838130088 838430088 838930088

NAPS-6133-4D,Power Transformer PC board ass'y 5 NPT-1102D,Power transformer NPT-1102P,Power transformer

2.5A-SE-EAK,Fuse

AS-CEE,Power supply cord

AS-UC-2#18,Power supply cord 6 7 8 9 10 11

T901

2300636 2300637

F901 P901

252075 253193HIT 253277MIL

NOTE :
NOTE : TH E COMPONENTS ID ENTI FIED BY MARK ARE CRI TI CAL FOR RI SK OF FI RE AND ELE CTRI C SH OCK . REPLACE ONLY WI TH PART NU MBER SPECI FIED.

230V model only 120V model only

12 13 14

T-405TX SCHEMATIC DIAGRAM
NARF-6130
* R101 R102 R104 X103 Q101 R109 * R101 R103 P101 UJJTYPETU001,TFFJ2J546A C20 270 680 C19 L7 L1 TR1 2SK360 R2 33 L2 2.2 C2 050 D1 L4 C6 330K 100 R4 R001 TR2 L5 C8 470 IFT 1 IF 22 680 R106 C103 223Z 10 330 R105 3.3K Q102 R107 330 2SC1923-O UJJTYPE 33K 6.2K 620 SFE-10.7MA5,RED 2SC945A-P OTHERTYPE 3.3K 1K 330 SFE10.7MZ2K 2SC1923-O

FM 300,OHM FM 75,OHM GND

7 ANT 8 C21

* Q101

L3

* R102

* R104

1K

C102

6 C18 103 E

2 C001 100/16 E C24 103 R5 100K R10 270 C9 020 TR3 R11 C17 103 TR4 C15 060 150 C13 330 R9 2.2K C14 220 68 5 +B 3 OSC

R002

101

C22

220

100

C1

561

C5

C3

C7

ANT

223Z * X103

C26 103

C4 681

X101 R004 22 SFE10.7MA5 RED

R3 10K

AM

X102 C101 223Z SFE10.7MA5 RED

R108 330

C002 10/16

R 71 0 0 K C10 L6 C12

R6 4.7K

D2

C16 R8 180 180

R003

100

C11 103

R710

C706 100/6.3 22 R704 C707 223Z V D D 11 2 FMIN 11 AMIN 10 VSS 16 PD2 15 PD1 14 VDD213 AM/FM 9 8 FMB Q704 DTA114ES C762 CH330J R775 220 C761 CH330J X752 AF6146CG XI 13 VDD2 12 VSS2 11 RCLK 16 2 RDSDATA T57 15 T1 10 7 VSS3 C760 C759 223Z X0 14 T2 9 8 CMP 561J 35P12 P12 36P11 P11 C763 31P16 32P15 33P14 34P13 P16 P15 P14 P13 P10 37P10 P9 29 30 Q755 3 VREF D701

4 NMA-3057

VT

R706

10K

C709 333J

OTHERTYPETU001,FE417-G02 P102 C1 C2 270 150 D1 R1 L1 L2 C4 33K FET 2SK302 C6 100 33K 33K C11 270 R3 100K R4 D2 D3 L3 L4 L5 C9 C711 0.22/50 050 L6 TR1 2SC2714

R707 3.9K 10/16 C710 2.2/50 Q702 2SK 365GR

R705 2.2K

1K

5 RDATA

3 PLLCE

1 XOUT

ANT

IFT

7 IF

2 XIN

FM 75,OHM

1

4 RCLK

6

AUTO C705 101J

C712

R2 100K

C21 223

C3 270

C10 221

C12 015

R5

R6

R7

R708 R709 4 E Q703 2SC 1740 -R 1M 330

2 E

X701 XTL7.2M C701 CH150J CH150J C702

C5

C7

C28 223

R10 100 C22 223 R8 R17 R14 330 330

C8

6 +B 8 OSC

R12 10K

C13 R11 470 10K

C14

D4

C15 TR2 100 R13 10K

R15 2SC 2996 C17 C18

C19 150

R16

C16 270

5

VT DATA CLK PLL

S761 DISP

* S760 S759 CHARACT BAND

220

TR3 2SC 2715

R701 R702 1K 1K

C703 101J

C704 101J

R703 1K

L7

S758 TIMER

S757 AUTO/MONO

S751 S752 MEMORY TU-UP

S753 P-UP

S754 P-DW

S755 TU-DW

S756 POWER EXCEPTUJJTYPE

R767 1K

R766 820

R765 470

R764 390

R758 390

R759 470

R760 820

R761 1K

R762 1.8K

STEREO

CLOCK

PLL

SIG

R757 2.7K X751 XTL-4.19M TP701 CH220J C756 C755 NTC45P27 V S S3 3 X1 34 N C3 2 G N D3 1 AVREF 0 3 A V D D2 9 K0 28

MUT

SD

R763 2.7K

* * R754 R753

* * R755 R756

7

MONO

Q701

LM7001J

BU1922,ORBU1923 5 VDD1 28 6 VSS1 4 MUX

D759

C754 10/16 K1 27 A R E A2 6 MODE 5 2 R776 10K

RDSDATA R774 220

CLK40

PLL 39

PCL38

G N D3 7

G N D3 6

DATA RDSDATA RDSSIG RDSSCK RI R769 47K

41 DATA 42 RDSDATA 43 RDSSIG 44 RDSSCK 45 POFF 46 SYSIN 47 GND 48 GND 49 SYSOUT Q754 DTA124ES D756 50 GND 51 GND 52 VDD3 53 GND R770 220K 54 GND 55 GND 56 GND 57 GND D757 MTZJ5.6B 58 GND 59 GND 60 P1 61 P2 62 P3 63 P4 69 P10 70 P11 72 P12 73 P13 74 P14 64 P5 65 P6 66 P7 67 P8 68 P9 Q751

X2 35

S I G2 4 S D2 3

S T E R E O2 2 GND 1 2 AVSS 0 2 MUT 9 1 GND 8 1 RESET 7 1 C757 GND 6 1 P O W E1 5 R GND 4 1 C752 GND 3 1 GND 2 1 GND 1 1 GND 0 1 G N D9 V D D 18 10G 7 9G 6 8G 5 7G 4 6G 3 5G 2 75 P15 76 P16 77 P17 71 -VP 4G 1 78 1G 79 2G 80 3G 10G 9G 8G 7G 5 10G 9G 8G 7G 6G 10 5G 11 4G 12 3G 13 2G 14 1G 5G 4G 20P17 6G 1 F2 2 F2 3 4 Q752 10-BT-167GK 474J C751 0.1/5.5 D751 223Z D754 R777 10K 10K Q753 DTC144ES C753 R751 D752 2.2 /50 1K R752

D753

MPD78044FGF-191

* R753 R754 R755 R756 S759

UJJ 1K NO 1K NO YES

UDD 1K NO NO 10K YES

OTHER NO 10K 390 2.7K NO

22

15

16

17

18

19

21

23

24

25

2.2/50 26 27

6

7

8

9G

8G

7G

6G

5G

4G

3G

2G

100K*11 P17

P10

P11

P12

P13

P14

P15

P16

P17

1G

2G

NADIS-6131

3G

P6

P7

P8

P9

1G

R768

10G

9

C758

RDSSIG

R773 220

1 QUAL

RDSSCK

T-405TX SCHEMATIC DIAGRAM
NARF-6130
* R101 R102 R104 X103 Q101 R109 * R101 R103 P101 UJJTYPETU001,TFFJ2J546A C20 270 C19 680 L7 L1 TR1 2SK360 R2 33 L2 2.2 C2 050 D1 L4 C6 330K 100 R4 R001 TR2 L5 C8 470 IFT 1 IF 22 680 R106 C103 223Z R143 C141 CH 080D 10K 10 330 R105 3.3K Q102 R107 330 2SC1923-O UJJTYPE 33K 6.2K 620 SFE-10.7MA5,RED 2SC945A-P OTHERTYPE 3.3K 1K 330 SFE10.7MZ2K C126C125 272J 272J C139 223Z C135 223Z L106 NMRF-5077 R133 10 C117 2.2/50 C118 * 223Z C133 C130 22/16 L104 NMC-4110 22/16 22/16 C123 C124 R129 220 P103 * * C120 C119 102K 102K R128 R127 100K 100K C115 22/16 R125 2.2K Q105 2SD1468R Q106 2SD1468R R130 220 Q107 680K DTA114ES C121 P,PT,DTTYPEONLY R144 0.47/50 1K * C122 102K LCH OUTPUT RCH C136 * C131 473J C132 221K NMC-6084 R131 3.3K R132 3.3K C116 22/16 * C137 101J TP101 * C134 C145 223Z 10KBC R111 R151 18K 22/16 2SC1923-O R136 4.7K UJJTYPEONLY L103 NMC-4110

FM 300,OHM FM 75,OHM GND

7 ANT 8 C21

* Q101

L3

* R102

1K

* R104

C102

6 C18 103 E

2 C001 100/16 E C24 103 R5 100K R10 270 C9 020 TR3 R11 C17 103 TR4 C15 060 150 R9 2.2K C14 220 C13 330 68 5 +B 3 OSC

R002

101

C22

220

100

C1

561

C5

C3

C7

ANT

223Z

C26 103

C4 681

R3 10K

AM

C16 R8 180 180

*134 R

* L105

R004 22

SFE10.7MA5 RED

X102 C101 223Z SFE10.7MA5 RED

R108 330

C002 10/16

*

X101

* X103

C144 223Z

S T E R E O A M D E T O U T2 4

F M D E T O U T2 3

L6

FMADJ

MPXR

AMRF

MPXL

R6 4.7K

D2

R003

100

MPXIN

R-IN

L-IN

C12

* Q108 2SC1740S-R

R 71 0 0 K C10

AMOSC2 9

AMAGC2 5

15VCOSTOP

2 AMMIXIN

C11 103

Q103 9 FMDET 11SIG

LA1837 13IFBUFF 12AMADJ 14AM/FM

4 AMIFIN

1 FMIFIN

R710

5 GND

4 NMA-3057

VT

8 VCC

6 SD

R704

1K

C707 223Z V D D 11 2 FMIN 11 AMIN 10 VSS 16 PD2 15 PD1 14 VDD213 AM/FM 9

D701 C140 223Z BFU450C C105 2.2 /50 * X106 SFZ 450 JL C107 223Z

10

3

7

C147 1/50 R112

R706

C152 1/50

3.3K

C706 100/6.3 22

* R138

D104 MTZJ9.1C * X105

C109 1/50

OTHERTYPETU001,FE417-G02 P102 C1 C2 270 150 D1 R1 L1 L2 C4 33K FET 2SK302 C6 100 33K 33K C11 270 R3 100K R4 D2 D3 L3 L4 L5 C9 C711 0.22/50 050 L6 TR1 2SC2714

R707 3.9K 10/16 C710 2.2/50 Q702 2SK 365GR

R705 2.2K

* R152

3.3K

R141

3.3K

C111

MONO

C146

5 RDATA

101J

10K

3 PLLCE

1 XOUT

ANT

IFT

8 FMB

2 XIN

FM 75,OHM

1

4 RCLK

AUTO

* R140

Q701

LM7001J

R118

1/50

* L107 NMIF-4062

C110

C104 47/16

0.47/50

C108 100 /16

* R117 1K

C709 333J

* R139 1K

10K

10

*

* C143 223Z

*

* C142 R137 223Z

* R119 * C113 20 19 18

* R120 * C114
L - O U T1 7

R126 2.2K

C138 223Z

V R E G2 8

A F C2 6

22

27

30

21

R - O U T1 6

P701

RI R771 470

7 IF

6

C712

7

L101 NFIF-4081 R115 R148 8.2K D102 100/16 * D103 10K C106

R2 100K

C21 223

C3 270

C10 221

C12 015

R5

R6

R7

R708 R709 4 E Q703 2SC 1740 -R 1M 330

C705 101J

2 E

X701 XTL7.2M C701 CH150J CH150J C702

C5

C7

C8

C703 101J

C704 101J

* C113,114 C119,120 C122 C131 C133 C134 C136 R117

UJJTYPE 332J NO NO YES 471K YES 100/6.3 YES 27K 12K 5.6K YES NO YES YES YES YES YES YES

UDDTYPE 472J NO YES YES 471K YES 100/6.3 YES 27K 8.2K 5.6K YES NO YES YES YES YES YES YES

OTHERTYPE 222J YES YES NO 331K NO 10/16 NO 56K NO 10K NO YES NO NO NO NO NO NO

C28 223

R10 100 C22 223 R8 R17 R14 330 330

D101 R113 R114 1K 1K

6 +B 8 OSC

R142 4.7K

R12 10K

C14

D4

C15 TR2 100 R13 10K

R15 2SC 2996 C17 C18

C19 150

C13 R11 470 10K

R116

NFIF-4082

L102

Q704 DTA114ES

R16

C16 270

220

TR3 2SC 2715

R701 R702 1K 1K

R703 1K

L7

33

R119,120 R134 R140 R152 L105 L107 D103 X105 X106 C132 C152

5

VT DATA CLK +5V PLL

R914

R912

R913

R916

470K

2.2K

R918 2.2K

2.2K

33K

R917 1K

C917 47/16 S761 DISP * S760 S759 CHARACT BAND S758 TIMER S757 AUTO/MONO S751 S752 MEMORY TU-UP S753 P-UP S754 P-DW S755 TU-DW S756 POWER EXCEPTUJJTYPE JL701A JL701B C911 220/6.3

Q903 2SC1740S-R Q901 C905 C906 78M12HF 223Z 223Z O G I

R915 4.7K

Q904 2SC1740S-R 1000/25

C919 470/16

R904 4.7 (1/2W) C903

R767 1K

R766 820

R765 470

R764 390

R758 390

R759 470

R760 820

R761 1K

R762 R775 220 1.8K

C762 CH330J C761 CH330J X752 AF6146CG XI 13 VDD2 12 VSS2 11 RCLK 16 2 RDSDATA T57 15 T1 10 X0 14 T2 9

RDS RI MUT F2 STEREO F1 SD GND 8 CMP SIG +5V +5.6V P-OFF R919 C915 10/50 C916 10/35 C910 223Z

C904 Q902 C 9 0 92 2 0 / 3 5 78M56FA 223Z R905 O G I 47 (1/2W) D903 C908 220/35 C902 47/35 R911 1K D906 MTZJ27D C914 47/35 R906 R907 5.6K 1K (1W) D905 D911 MTZJ12C D902 C913 47/100 D904 R903 1 (1/2W) JL901B R902 1(1/2W)

* T901 P901 P902 D901 R901 F901 J141

D910

+12V

D908

C918 10/16

D909

UJJ NPT-1102 AS-Y NO NO YES

UDT NPT-1102D AS-UC-2#18 NO NO YES

UPT NPT1102P AS-CEE NO 2.5A-SE-EAK NO J141

NSCT-2P1777NSCT-2P1777NSCT-2P1424

STEREO

CLOCK

PLL

SIG

R757 2.7K X751 XTL-4.19M TP701 CH220J C756 C755 NTC45P27 V S S3 3 X1 34 N C3 2 G N D3 1 AVREF 0 3 A V D D2 9 K0 28

MUT

SD

R763 2.7K

* * R754 R753

* * R755 R756

Q755 3 VREF

BU1922,ORBU1923 5 VDD1 6 VSS1 7 VSS3 4 MUX

D759

1 QUAL

RDSSCK

JL901A

2.2/50

JL902B

C754 10/16 K1 27 A R E A2 6 MODE 5 2 R776 10K

D907 MTZJ6.2C

CLK40

PLL 39

PCL38

G N D3 7

G N D3 6

X2 35

R774 220

100 /6.3

-VP CLK P-OFF DATA JL702B JL702A

R909 100

DATA RDSDATA RDSSIG RDSSCK RI R769 47K

F1

41 DATA 42 RDSDATA 43 RDSSIG 44 RDSSCK 45 POFF 46 SYSIN 47 GND 48 GND 49 SYSOUT Q754 DTA124ES D756 50 GND 51 GND 52 VDD3 53 GND R770 220K 54 GND 55 GND 56 GND 57 GND D757 MTZJ5.6B 58 GND 59 GND 60 P1 61 P2 62 P3 63 P4 69 P10 70 P11 72 P12 73 P13 74 P14 64 P5 65 P6 66 P7 67 P8 68 P9 Q751

S I G2 4 S D2 3

8 9 * T901

3 JL901B JL902A

*

F2

6

UPTTYPE * R901 3.3M (1/2W)

2 S T E R E O2 2 GND 1 2 AVSS 0 1 MUT 9 1 GND 8 1 RESET 7 C757 1 GND 6 P O W E1 5 R 1 GND 4 C752 GND 3 1 GND 2 1 GND 1 1 GND 0 1 G N D9 V D D 18 10G 7 9G 6 8G 5 7G 4 6G 3 5G 2 75 P15 76 P16 77 P17 71 -VP 4G 1 78 1G 79 2G 80 3G 10G 9G 8G 7G 5 10G 9G 8G 7G 6G 10 5G 11 4G 12 3G 13 2G 14 1G 20P17 31P16 32P15 33P14 34P13 35P12 36P11 37P10 38 P9 39 P8 40 P7 41 P6 42 P5 43 P4 44 P3 45 P2 46 P1 49 F1 5G 4G 50 F1 6G 1 F2 2 F2 3 4 Q752 10-BT-167GK 474J C751 0.1/5.5 D751 223Z D754 R777 10K 10K Q753 DTC144ES C753 R751 D752 2.2 /50 1K R752

R908 100

D901-D905,:GP104003EORAM01Z

NAPS-6133
D753

NOTE
. THE COMPONENTS IDENTFIED BY MARK ARE CRITICAL FOR SAFETY. REPLACE ONLY WITH PART NUMBER SPECIFIED. . VOLTAGE (MEASURED WITH IS DCVOLTAGE. (NO INPUT SIGNAL) . ELECTROLYTIC CAPACITORS ( ) A R E I N uF / W V . . ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED. EX) 030 3pF 330 33pF 331 330pF 333 0.033uF . ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED. . THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS. EX) PRINTING SIDE . CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

MPD78044FGF-191

* R753 R754 R755 R756 S759

UJJ 1K NO 1K NO YES

UDD 1K NO NO 10K YES

OTHER NO 10K 390 2.7K NO

22

15

16

17

18

19

21

23

24

25

26

27

28

29

30

47

9G

8G

7G

6G

5G

4G

3G

2G

100K*11 P17 P16 P15 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1

P10

P11

P12

P13

P14

P15

P16

P17

1G

2G

NADIS-6131

3G

P6

P7

P8

P9

1G

R768

10G

48

6

7

8

9

* P902

RDSDATA

PLL

C759 223Z

C763

C912 100/100

5

AC

P901A

P902

D758

GND

JL901A

C758

C760

561J

10

RDSSIG

R773 220

1 4

* F901 T2.5AL250V

* P901

AC

P101 P102 P701 P101 P103 J146 C144 C122 C119 R901 L106 C120 R128 Q105 02 J142 J901a Q107 R126 C135 R144 J902a J141 F901 C148 D910 R111 R151 R145 R917 L107 Q904 R915 J140 R125 C121 02 J153 C136 L106 J137 J136 C137 J138 C141 7 R136 Q106 R127 P902 J139 C118 P902 C139 R143 P701 R129 R130 P103 P102 JL101A J145 J144 J143 7 C117 C103 C001 R103 R101 Q101 X102 51 R107 X103 J133 R109 R105 J135 R104 TP101 R106 Q102 C101 L107 C145 C106 R134 71 1 C919 4 R916 C918 R914 D909 D908 X105 R918 Q903 C108 R913 C917 R912 02 J121 J115 R771 R139 J111 C115 21 J116 R902 D901 R903 D911 J151 R112 R140 J120 R116 D103 D102 21 J122 D104 C107 AC-G J134 AC-G C134 X104 J152 C132 30 C104 X106 21 J125 C140 J128 C133 JL101B L102 J132 AC-H R002 R108 C102 R001 7 C131 Q703 C142 R709 Q103 J127 C130 Q103 R142 C708 L101 L102 R133 R115 C709 C002 R706 L105 C125 15 16 C128 C712 L103 L103 R710 C147 R152 C146 21 C113 R120 C114 C105 R117 C110 R114 C116 R132 R113 R150 R131 7 J114 J110 R141 J108 21 21 21 7 J112 J113 C129 C152 C710 R705 Q704 R149 Q702 C126 R708 R137 J117 L104 R704 L104 C138 Q108 R138 R118 C124 Q701 Q701 R148 C143 C123 D701 J104 J109 C707 C706 9 8 R119 J119 C111 J118 J124 7 L105 L101 C711 R707 J126 X101

TU002 TU002

51

02

AS MARKED FUSE -REPLACE RISK OF FIRE

TU001 TU001 J131

T2.5AL250V NCRF-6130 25136130D
AC-H P901a

R102

J130

J129

C705 C704 C703 C904 C109 C908 16 R911 1 J107

21 R004 R003 C903 C909 C904 R703 X701 C907 R905 JL102A J105 51 C912 D903 C912 D902 R919 C902 R908 C906 JL102B Q902 Q901 D904 C905 C702 C701 02 C903 C908 D101 R904 R702 R701 JL901b 7 J106

PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE

MAIN CIRCUIT PC BOARD (NARF-6130)
22 C915 J103 D905 R909 D907 C916 5.6V RI F F E C914 C913 J102 PLL CLK DAT J101 C911 C910 R907 -VP SIG MUT D755 C913 P-OFF JL702b ST SD D906 R906 RDS JL701b

J123

T-405TX

R768 R770 D757 25136131 NCDIS-6131 J705 J704 7 J712 J703 J716 Q754 POWER J711 03 S756 R753 R755 C758 C759 03 J713 DOWN TUNING 41 C799 R766 7 R762 R759 R758 S757 S754 S753 R761 25 40 J719 02 X751 R764 TIMER BAND PLL J717 CLK DAT C755 C754 R757 D754 TP701 -VP P-OFF C756 JL702a D759 JL701a F F E RI 5.6 C763 R763 R760 MEMORY R776 AUTO/MONO DOWN PRESET UP R765 S759 S758 S751 C752 D751 C751 SIG SD UP S752 24 R756 R754 S755 R752 R774 Q755 1 J706 J709 D752 C757 Q753 J708 J707 C753 D753 ST RDS MUT 7 R751 9 C771 J710 D758 X752 C762 C761 C760 Q755 21 8 J714 03 21 J702 J715 R769 7 Q751 DISPLAY CHARACTER R777 21 1 1 64 J718 S761 S760 J701 80 65 52 Q752 D756 4 R767 Q752

R773

R775 16

T901 JL901a 9 8

1

PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE

DISPLAY PC BOARD (NADIS-6131)

J901b 6 5 4 25136133 1

T901

2

J903b

3

J902b

NCPS-6133

POWER TRANSFORMER PC BOARD (NAPS-6133)

T-405TX

T-405TX

PRINTED CIRCUIT BOARD-PARTS LIST
MAIN CIUCUIT PC BOARD(NARF-6130-4C/4D) CIRCUIT NO. PART NO. DESCRIPTION Front end TU001 240102 FE417-G02 Q103 Q701 Q901 Q902 Q101,Q102 Q105,Q106 Q107,Q704 Q108,Q703 Q702 Q903,Q904 D101,D102 D701,D908 D104 D901-D905 D906 D907 D909,D910 D911 L103,L104 L105 X101,X102 X103 X701 L101 L102 C001,C106 C002,C136 C104,C917 C105,C117 C108 C109,C111 C110,C121 C113,C114 C115,C116 C123,C124 C125,C126 C130 C147 C706 C709 C710 C711 C712,C918 C902,C914 C903 C904,C908 C911 C912 C913 C915 C916 C919 R111 R901 ICs 22241151 22241076 222780125 222780565JRC Transistors 2211723 2212794 or 2215024 2213510 or 2215770 2213284 2212445 2213284 Diodes 223205 or 223163 224470913 22380035 or 22380046 224472704 224470623 223205 or 223163 224471203 Coils 233528 233471Y Ceramic filters 3010071 3010130 Oscillator 3010141 Transformers 233457 233458 Capacitors 354741019 354741009 354744709 354780229 354741019 354780109 354784799 374722224 354742209 354742209 374722724 354742209 354780109 354721019 374723334 354780229 354782299 354741009 354764709 354751029 354762219 354722219 354791019 354794709 354781009 354761009 354744719 Resistors 5210262 431533355 N06HR10KBC,Trimming RC1/2GFKUL-3.3M,Solid LA1837 LM7001J 78M12HF NJM78M56FA 2SC1923-O 2SD1468-R or 2SD1468S-R DTA114ES or KRA102M 2SC1740S-R 2SK365-GR 2SC1740S-R 1SS270A or 1SS133 MTZJ9.1C GP104003E or AM01Z MTZJ27D MTZJ6.2C 1SS270A or 1SS133 MTZJ12C NMC-4110 NMC-6084 SFE-10.7MA5 RED SFE10.7MZ2K Q753 XTL-7.2M Q754 NFIF-4081 NFIF-4082 ,16V,Elect. D751-D754 D758,D759 D756 D757 ,16V,Elect. 1 ,50V,Elect. X751 X752 C751 C752 C753,C758 C754 C755 C760 C763 S751-S758 S760,S761 JL701A JL702A TP701 Q752A ,16V,Elect. CIRCUIT NO. R902,R903 R904 R905 R906 JL701B JL702B JL901B P902 P902 TP101 P901A P102 P103 P701 F901A Q901A Q901B PART NO. Resistors 453530104 453530474 443524704 443621024 Sockets 25051094 25051089 25050269 25051637 25051990 Plugs 25055038 25055675 Terminals 25060231 25045333 25045330 Fuse holders 25050065 ! Heat sink 27160209 DESCRIPTION 1

NSCT-10P881 NSCT-5P876 NSCT-5P97 NSCT-2P1424

NSCT-2P1777 NPLG-2P29 NPLG-2P631 NTM-1PD153 NPJ-2PDBL185 NPJ-2PDBL184 YSH403T

RAD-67

Self tapping screw 838430107 3TTB+10S(BC)

DISPLAY CIRCUIT PC BOARD(NADIS-6131-4C/4D) CIRCUIT NO. PART NO. DESCRIPTION FL tube Q752 212141 10BT-167GK Q751 Q755 ICs 22241611 22241302 or 22241124 Transistors 221282 or 2215820 2212600 or 2215780 Diodes 223205 or 223163 223205 or 223163 224470562 Oscillators 3010224 3010203 Capacitors 3000078 375524744 355780226 355741009 3060031 374725614 355721019 Push switches 25035652 25035652 Sockets 25051094 25051089 Plug 25055038 Holder 27190943 MPD78044FGF-191-3B9 BU1923 or BU1922 DTC144ES or KRC104M DTA124ES or KRA103M 1SS270A or 1SS133 1SS270A or 1SS133 MTZJ5.6B XTL-4.19M AF6146CG

10

1 ,6.3V,Elect.

,50V,Elect.

NPS-111-S604 NPS-111-S604 NSCT-10P881 NSCT-5P876 NPLG-2P29 (FL)

,25V,Elect. ,35V,Elect. ,6.3V,Elect. ,100V,Elect.

POWER TRANSFORMER PC BOARD(NAPS-6133-4C/4D) CIRCUIT NO. PART NO. DESCRIPTION JL901A Sockets 25051109 NSCT-5P896

NOTE : TH E COMPONENTS ID ENTI FIED BY MARK ARE CRI TI CAL FOR RI SK OF FI RE AND ELE CTRI C SH OCK . REPLACE ONLY WI TH PART NU MBER SPECI FIED.

T-405TX

CONTROL POSITIONS AND NAME

PRESET button FM MODE button MEMORY button TIMER button STANDBY/ON button

FM STEREO TUNER
PRESET TIMER MEMORY FM MODE

CLEAR
STANDBY/ ON

TUNING

DISPLAY CHARACTER

ACCUCLOCK ACCUCLOCK

T-405TX

DISPLAY

DISPLAY button CHARACTER button TUNING button

RDS indicator AM/PM indicator Tuning indicator AUTO/MONO indicator STEREO indicator MEMORY indicatoor

TIMER W.DAY W.END MEMORY REC SLEEP

AUTO

MONO

AM

PM

RDS
MIN kHz MHz

STEREO

sleep timer indicator Multi display Timer setting indicator Frequency indicator

T-405TX

ADJUSTMENT PROCEDURES
Preparation
Input FM mono:1kHz,75kHz FM stereo: 1kHz,67.5kHz Pilot signal: 19kHz,7.5kHz devi.

2. FM Adjustment
Item Connection Step of instrument 1 FM IF/RF 2 3 Stereo Distortion 98.1MHz Ext. mod. Channel L or R 1kHz Fig.1 98.1MHz 1kHz 75kHz devi. 65dBf ( 60dB) FM SG output Stereo modu- Tuning lator output frequency Output indicator DC voltmeter 98.1MHz AC voltmeter Distortion analyzer Distortion analyzer Oscilloscope or TUNING indicator Adjustment point L101 IFT on the front end L102 IFT on the front end Maximum Minimum Adjust for Remarks FM MUTE/MODE switch:ON/STEREO Repeat the steps 1 and 3 until no further adjustment is necessary.

Fig.2

98.1MHz

Minimum

Muting Level

Fig.1

98.1MHz 19.2dBf ( 14dB )

Signal output R111 or light on

98.1MHz

ADJUSTMENT POINT
75 ANT. TERMINAL FM SIGNAL GENERATOR UNIT OUTPUT TERMINAL DISTORTION METER



TP101 DC VOLTMETER OSCILLOSCOPE or AC VOLTMETER

75 ANT. TERMINAL STEREO SIGNAL MODULATOR FM SIGNAL GENERATOR UNIT

OUTPUT TERMINAL DISTORTION METER

OSCILLOSCOPE or AC VOLTMETER

T-405TX

Using the timer
The T-405TX features a Timer function that enables you to start playing or recording a specified component at a specified time.To use this function ,you need to configure a system that includes an ONKYO amplifier A-905TX connected to the T-405TX and other components via REMOTE CONTROL jacks.

Button and modes for the Timer function
The following button and setting modes are used to operate the Timer function. You can use the remote controller(that comes with the ONKYO amplifier A-905TX), as well as the front panel of the T-405TX.
MEMORY TIMER PRESET ¨
FM STEREO TUNER
BAND
PRESET TIMER MEMORY FM MODE

Timer setting modes WEEKDAY This mode enables you to listen to

STANDBY/ ON CLOCK
STANDBY/ ON

SLEEP CLEAR

GRAPHIC EQ EFFECT MODE
TUNING

PRESET
FM

TUNER INPUT
AM

DISPLAY CHARACTER

TAPE

ACCUCLOCK

PAUSE / STEP

DVD MD

T-405TX

a specified component at a designated timer on weekdays.You canchange the day of the week in DAY SET mode.

REPEAT

SCROLL

PLAY MODE CLEAR

REC

REPEAT

RANDOM

CD

MEMORY

CLEAR DISC

REPEAT PLAY MODE

CDR

TONE

CLEAR

REC

WEEKEND This mode enables you to listen to

TIMER UP/DOWN ENTER

MUTING TIMER

1 4

2 5 8

3 6 9
ACOUSTIC PRESENCE
VOLUME

UP/DOWN

7
ENTER

--/- - -

10 / 0

REMOTE CONTROLLER

RC-456S

a specified component at a designated time on weekends.You can change the day of the week in DAY SET mode. You can define the same day of the week as both WEEKDAY and WEEKEND.To set two Programs for one day,specify the same day of the week as WEEKDAY and WEEKEND and set the time for each program.

TIMER button
Use this button to select a timer mode. The timer modewill change each time you press this button.

REC

PRESET( / )buttons(T-405TX),or UP/DOWN( / )button(Remote controller)
Use there buttons to select the details of the mode or to change values.

This mode enables you to record your favorite broadcasting program(s) starting at a designated time .You can select from NEXT,the day of the week, and EVERYDAY.Except for EVERYDAY, the unit performs the timer recording once at the designated time.

DAY SET

This mode enables you to change the day setting(definition)of WEEKDAY or WEEKEND

MEMORY button(T-405TX),or ENTER button(Remote controller)
Use this button to enter the selected mode or numbers.

ADJUST

This mode enables you to set and adjust the clock.If you have Adjusted the clock, you do not need to set it again.

T-405TX

MICROPROCESSOR CONNECTION DIAGRAM
Q701 LM7001 PLL SYNTHESIZER AND CONTROLLER
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 TP701

390

470

820

1K

1.8K

OSC 4.19MHz
5V

4.7K 5V 4.7K 390 470 820 1K

47K

Q755 BU1922 OR BU1923

SYSTEM BUS

470

220K

5V

5V

41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

CLK PLL PCL GND GND X2 X1 VSS NC GND AVREF AVDD K0 K1 AREA MODE

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25

INITIALIZING

DATA RDSDATA RDSSIG RDSSCL POFF SYSIN GND GND SYSOUT GND Q751 GND VDD3 MICROPROCESSOR GND GND MPD78044GF-191 GND GND GND GND GND P1 P2 P3 P4 P5

SIG SO STEREO GND AYSS MUT GND RESET GND POWER GND GND GND GND GND GND VDD1 10G 9G 8G 7G 6G 5G 4G

24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

Q105-107 MUTING SW
5V

Q103 LA1837 FM AND AM RADIO SYSTEM

Q753 RESET

65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 -26V

P6 P7 P8 P9 P10 P11 -VP P12 P13 P14 P15 P16 P17 1G 2G 3G

OPERATION KEY
K0 K1 MEMORY FM MODE TU-UP TIMER P-UP BAND P-DW CHARACT TU-DW DISPLAY POWER

Q752 FLUORESCENT TUBE 10-BT-167-BT

10C 9C 8C 7C 6C 5C 4C 3C 2C 1C

P16 P15 P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1

T-405TX

MICROPROCESSOR TERMINAL DISCRIPTIONS
Pin No. 1 2 3 4 5 6 7 8 15 17 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 38 39 40 41 Function 4G 5G 6G 7G 8G 9G 10G VDD POWER RESET TUMUT AVSS STEREO SD SIGNAL MODE AREA K1 K0 AVDD AVREF XT1 XT2 VSS X1 X2 FOUT PLL CE CLK DATA Analog power supply pin for A/D converter Reference voltage pin for A/D converter Crystal connection pins for subsystem clock Not used Ground Crystal connection pins for main system clock Connect the cwramic oscillator 4.19MHz Frequency output pin for adjustment Chip enable output pin for PLL IC Clock output pin for PLL IC Data output pin for PLL IC Positive power supply pin(+5V) Power source control pin System reset pin Muting control output pin Ground voltage pin for A/D converter Stereo broadcast detection input Broadcast detection input Signal strength level input pin Initializing pin for RDS broadcast Initializing pin for band area Key input pin Grid output pin Description Pin No. 42 43 44 45 46 48 49 52 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Function RDSDATA RDSSIG RDSSCK POFF SYSIN IC SYSOUT VDD P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 VLOAD P12 P13 P14 P15 P16 P17 1G 2G 3G The pin number not written is ground. Grid output pin Segment output pin Pull-down resistor connection pin Segment output pin Description Data input pin from RDS decoder Signal input pin from RDS decoder Clock input pin from RDS decoder Power failure detector input pin System code input pin Internal conecctionpin System code output pin Positive power supply pin(+5v)

T-405TX

IC BLOCK DIAGRAM

Q103:LA1837

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

REGULATOR ALC BUFFER AM MIX AM RF AMP

3rd 6th DECODER ANTI-BIRDIE PHASE DET STEREO SWITCH MUTE

AM OSC

AGC AMIF SD COMP DET VCO 304kHz PILOT DET

F.F

F.F

F.F

AM S-METER

FM S-METER

AM/FM S-CURVE IF-BUFF FM DET

TUNING DRIVER

STEREO DRIVER

FM IF

GND 1 2 3 4 5 6 7

VCC 8 9 10 11 12 13 14 15

T-405TX

IC BLOCK DIAGRAM Q701:LM7001J
Phase Detector Charge Pump Reference Divider
12 VDD1 13 VDD2

6 SYC 2 X IN 1 XOUT 11 FM IN

14 PD1 15 PD2

Programable Divider
10 AM IN 16 VSS

Shift Register/Latch

3 4 5 CE CL DATA

7 BO1

8 BO2

9 BO3

Pin No. Terminal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 XOUT XIN CE CL DATA SNY BO1 BAND1 BAND2 AMIN FMIN VDD1 VDD2 PD1 PD2 VSS

Description Connect the 7.2MHz crystal resonator. Chip enable terminal.Connect to the terminal PLL of microprocessor. Serial clock input terminal.Connect to the terminal CLK of microprocessor. Serial clock input terminal.Connect to the terminal DATA of microprocessor. Not used. Auto/Mono control terminal. Band selector output terminal.Low level at FM. Band selector output terminal.Low level at AM. AM local oscillator input terminal. FM local oscillator input terminal. Power souce terminal for back-up. Power souce terminal . Phase comparator output terminal. Phase comparator output terminal. Ground terminal

T-405TX
PACKING VIEW

REF.NO. 31 32 33 34 35 36 37 38 39 40 41 42 43

PART NO. 29091888 29091889 29095835 29110071 282301 29100180 29053738 29362841 2010376 2010375 292116 25065462 29343092 29343093

DESCRIPTION Pad A Pad B 0.515*650*550,Sheet PP tape Staple D240*W250,Polybag Carton Label EAN Audio connection cable Remote control cable FM-antenna YAE21-0237,FM antenna adapter Instruction manual E Instruction manual CT

T-405TX

ONKYO CORPORATION Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222

ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 20, 82110 Germering, GERMANY Tel: 089-849-320 Fax: 089-849-3265 E-mail: [email protected] ONKYO CHINA LIMITED Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung, N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039
HOMEPAGE http://www.onkyo.co.jp/