Teac T-1D User manual

TT--11DD
SERVICE MANUAL
AM/FM Stereo Tuner
Effective : December, 2002 S-0075A
CONTENTS
1 SPECIFICATIONS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・2
2 ADJUSTMENTS AND CHECKS ・・・・・・・・・・・・・・・・・・・・・・・・3
3 EXPLODED VIEWS AND PARTS LIST ・・・・・・・・・・・・・・・・・6
4 PC BOARDS AND PARTS LIST ・・・・・・・・・・・・・・・・・・・・・・・・8
NOTES
●PC boards shown are viewed from parts side.
●The parts with no reference number or no parts number in the
exploded views are not supplied.
●As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
●£Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.

1 SPECIFICATIONS
−2−
FM Tuner Section
(Without notes 98 MHz, 65 dBf)
Tuning Range: 87.5 MHz – 108.0 MHz (50 kHz steps)
Usable Sensitivity (IHF):
Mono: 11.2 dBf
50 dB Quieting Sensitivity:
Mono: 15 dBf
Stereo: 20 dBf
Total Harmonic Distortion (1 kHz):
Mono: 0.4%
Stereo: 0.5%
Frequency Response: 30 Hz – 15 kHz, +1/ –1.5 dB
Stereo Separation (1 kHz): 40 dB
Signal-to-Noise Ratio:
Mono: 72 dB
Stereo: 70 dB
AM Tuner Section
Tuning Range: 522 kHz – 1,620 kHz (9 kHz steps)
Usable Sensitivity: 55 dB/m
Total Harmonic Distortion: 0.8% at 85 dB/m
Signal-to-Noise Ratio: 45 dB at 85 dB/m
General
Power Requirements: 230 V AC, 50 Hz
Power Consumption: 8 W
Dimensions (W x H x D): 435 x 102 x 270 mm
Weight (net): 3.6kg
Standard Accessories:
AM Loop Antenna x 1
FM Lead-type Antenna x 1
Power Control Cord x 1
●Improvements may result in specifications and features
changing without notice.

2 ADJUSTMENTS AND CHECKS
−3−
ALIGNMENT INSTRUCTIONS
EQUIPMENT NEEDED:
AM Signal Generator
FM Signal Generator
Oscilloscope
VTVM(AC, DC)
Test loop antenna (AW Adjustment)
Dummy antenna (FM Adjustment)
Stereo signal modulator
Frequency counter
Distortion analyser
IMPORTANT
1. Check power-source voltage.
2. Set the function switch to band aligned.
3. Keep the signal input as low as possible to adjust accurately.
4. Modulation and modulation frequency.
Item Modulation Modulation frequency
Band
AM 30% 400Hz
FM 100%(75KHz Dev.) 400Hz
ADJUSTMENT POINT
MAIN PCB
T2
T3-2
T4
T5
TVR5
TVR4
TVR2
TVR1
TVR3
T1
TVC1
TVC2
TP1
L2
RF1
P5 P6
T1
T3-1

−4−
1. AM TRACKING VOLTAGE ADJUSTMENTS
DC VOLTMETER ........................... CONNECT TO TEST POINT P5 and GND
NO. Band Frequency Adjust for Adjustment
1AM 603KHz 2.2V T1
2AM 1620KHz 9.0V TVC1
2. AM RF ADJUSTMENT
Signal Generator ........................ Connects to the AM ANT. Coil through the loop antenna.
Adjust for the indication of VTVM of the wave form of scope to be maximum.
BAND Step Frequency Adjust for Adjustment
1 630KHz Maximum sensitivity L2, T2
2 1422KHz Maximum sensitivity TVC2
3 Repeat steps 1 and 2 several times.
AM
NO. Frequency Adjust for Adjustment
1 97.8MHz L rejection T4
2
P5
GND
3 97.8MHz
97.8MHz
TVR3
T5
L, R rejection
R rejection
3. FM 19kHz REJECTION ADJUSTMENT

−5−
4. FM MONO DISTORTION ADJUSTMENT
DC VOLT METER ........................Connect to TP1(-), TP1(+) Through the choke coll (100 H)
Signal Generator........................Connect to FM ANT Jack (FM IN) through the dummy.
Distortion Meter .........................Connect to the output.
NO. Frequency Adjust for Adjustment
1 97.8MHz DC Voltmeter 0V T3-1
2 97.8MHz Minimum T.H.D T3-2
3
5. FM/AM AUTO STOP LEVEL ADJUSTMENT
FM SIGNAL GENERATOR ........................Connect to FM ANT Jack (FM IN) through the dummy
AM SIGNAL GENERATOR.........................Connect to AM ANT, Coil through the Loop antenna
BAND STEP SIGNAL GENERATOR Adjust for Adjustment
1 97.8MHz 16dB Display ON TVR1
1 630KHz 74dB Display ON TVR2
AM
FM TUNED
TUNED
4 Repeat steps 1 and 2 Several times.
97.8MHz Minimum T.H.D T1
TP1(-)
TP1(+)
NO. Frequency Adjust for Adjustment
1 97.8MHz L separation TVR5
2 97.8MHz TVR4R separation
6. FM SEPARATION ADJUSTMENT

−6−
1
2
3
4
5
6
7
8
9
0
q
w
e
r
t
y
u
i
o
p
a
s
d
f
g
3 EXPLODED VIEWS AND PARTS LIST

−7−
EXPLODED VIEW LIST
REF.NO. PARTSNO. DESCRIPTION REMARKS
1 9A09523500 FACEPLATE 75L950W0269*
2 9A09503000 WASHER,POWER 85A716******
3 9A09524400 WASHER 85A717******
4 9A09523900 KNOB,POWERPUSH 80KB456*****
5 9A09230300 ACRY 85A398******
6 9A09524000 KNOB,PUSH11P 80KB457*****
7 9A09230200 ACRY 85A636******
8 9A09524100 KNOB,PUSH6P 80KB458*****
9 9A09524200 KNOB,PUSH 80KB459*****
10 9A09524300 KNOB,PUSH 80KB460*****
11 9A09523600 FRONTPLATE 78C287200000
12 9A09525250 KEYPCBASSY T1DB4230****
13 9A09503700 FOOTCUSHION 81AD289*****
14 9A09230000 BOTTOMPLATE 78C266200000
15 9A09231700 BRACKER,U‑TYPE 78C206000000
16 9A09525150 POWERPCBASSY T1DB3852****
17 9A09523800 UPPERCOVER 78C287300000
18 9A09525050 TUNERPCBASSY T1DB3850****
19 9A09529600 B4231PCBASSY 60B4231*****
20£9A09231500 BUSHING,SB4F‑4 98BSB4F4****
21£9A09503900 ACCORD 654H2E20B21S
22 9A09231300 HOLDER,ANT 85A271******
23 9A09523700 REARPLATE 78C2839W0350
24 9A09502600 ENDCAPLIFT 76H670000000
25 9A09502700 ENDCAPRIGHT 76H671000000
F1,F2£9A09231900 FUSE,0.5A/250VT 265200P521TQ
F3£9A09232000 FUSE,0.1A/250VT 265200P121TQ
INCLUDED ACCESSORIES
REF.NO. PARTSNO. DESCRIPTION REMARKS
9A09146800 OWNER'SMANUAL 9904T1D*****
9A09525500 FM75OHMANT 64T0005*****
9A09233800 LOOPANT 64LA75******

−8−
4 PC BOARDS AND PARTS LIST
B4230/B4231 PCB
B3850 PCB B3852 PCB

KEY PCB ASSY
REF.NO. PARTSNO. DESCRIPTION
9A09525250 KEYPCBASSYB4230
9A09529500 KEYPCBB4230
9A09529300 CONNECTOR,ED‑G142P
9A09529400 CONNECTOR,ED‑G152P
D1,D2 9A09237300 DIODE,1N4148
IR1 9A09247100 INFERREDRECEIVER,IR‑9G
J1TOJ2 9A09247800 CONNECTOR,ED‑4917P
J2TOJ3 9A09247700 CONNECTOR,ED‑E678P
J3TOJ8 9A09528500 CONNECTOR,ED‑F252P
Q3 9A09240800 TR,2SA965
Q4 9A09240500 TR,2SC1815BL
Q5 9A09511100 TR,2SC2240
R2 9A09246800 R,NETWORKS10KX45P4R
R9 9A09528600 R,NETWORKS10KX67P6R
R25,R26 9A09246700 R,NETWORKS10KX78P7R
SW1‑SW19 9A09247000 TACTSW,SKHVBK3710
SW21‑SW23 9A09247000 TACTSW,SKHVBK3710
U1 9A09528800 IC,BU1923
U2 9A09246500 IC,TMP87PM78F
U3 9A09528900 IC,74HC74DT
U4 9A09246900 IC,93C66
U6 9A09518900 IC,TMP87CH47U
U7 9A09529000 IC,74HC04DT
U45 9A09247200 FLTUBE,25U39167TAN
X1 9A09529100 CRYSTAL,8MHZ49US
X3 9A09529200 CRYSTAL,4.332MHZ49US
B4231 PCB ASSY
REF.NO. PARTSNO. DESCRIPTION
9A09529600 B4231PCBASSY
9A09529500 KEYPCBB4230
J5 9A09244800 WAFER,5045‑2P
J6 9A09529700 PHONEJACK
J7 9A09244600 TERMNALGND,K‑15
TUNER PCB ASSY
REF.NO. PARTSNO. DESCRIPTION
9A09525050 TUNERPCBASSYB3850
9A09245200 PCB,B3850/B3852/B3853
C95£9A09241800 C,ELEC2200UF/25V
C97£9A09240000 C,ELEC100UF/100V
C98£9A09240300 C,ELEC47UF/63VNP
D1,D2 9A09237300 DIODE,1N4148
D4 9A09237300 DIODE,1N4148
D5 9A09237500 ZENERDIODE,5.6V0.5W
D6 9A09237600 ZENERDIODE,22V0.5W
D7‑D10£9A09237400 DIODE,1N4007
F1,F2 9A09241200 FUSEHOLDER
J1 9A09244500 RCAJACK
J2 9A09245000 WAFER,5045‑7P
J3 9A09525900 WAFER,5045‑8P
J4 9A09244900 WAFER,5045‑6P
TUNER PCB ASSY
REF.NO. PARTSNO. DESCRIPTION
J8,J10 9A09244800 WAFER,5045‑2P
JP1 9A09526000 ANTTERMINAL
L1 9A09242600 CHOKE,2.2UH
L2 9A09242800 I.F.T,LA‑003
P2 9A09244600 TERMNALGND
P5,P6 9A09244700 PIN,1.5x3.5x9
Q1,Q2 9A09240500 TR,2SC1815BL
Q3 9A09240600 TR,2SA1015
Q4 9A09240500 TR,2SC1815BL
Q5 9A09241600 TR,2SK192A
Q6‑Q8 9A09240500 TR,2SC1815BL
Q10 9A09240500 TR,2SC1815BL
Q12,Q13 9A09240700 TR,2SC3327A
Q14 9A09240500 TR,2SC1815BL
Q15 9A09240600 TR,2SA1015
Q16,Q17 9A09240700 TR,2SC3327A
Q19 9A09240500 TR,2SC1815BL
Q20 9A09242700 TR,2SB633
Q21,Q22 9A09240500 TR,2SC1815BL
Q23£9A09240800 TR,2SA965
R35 9A09241500 NTCTHERMISTORS,300OHM
R41£9A09527300 R,CARBON1/2WT10
R82£9A09527600 R,CARBON1/2WT47
R90£9A09241400 R,M.O.F1W4K7
RF1 9A09243300 FMTUNER,TFFJ4E570A
SW2 9A09243400 TACTSW,SFKHHLU1714
T1 9A09242900 IFT,LO‑O03
T2 9A09527700 IFT,A‑8BC02‑8072
T3 9A09243100 IFT,0203‑W009
T4,T5 9A09243200 IFT,10DF01
TP1 9A09244400 PIN,2541‑2P
TVC1,2 9A09243500 TRIMMER,CTY‑112B8P
TVR1 9A09241000 TVR,6H‑TYPE30K
TVR2 9A09240900 TVR,6H‑TYPE10K
TVR3 9A09241000 TVR,6H‑TYPE30K
TVR4,5 9A09241100 TVR,6H‑TYPE1M
U1 9A09241900 IC,AN278
U2 9A09242000 IC,LA1266
U3 9A09242100 IC,LA3450
U4 9A09242200 IC,TC9257P
U5,U7£9A09242300 IC,AN7805
U8£9A09242400 IC,AN7812
U8 9A09244300 HEATSINK
VD1,2 9A09243600 VARICAP,1SV149
W37 9A09527800 CHOKE,15MH
X1 9A09243700 CRYSTAL,7.2MHZ
Z1 9A09243800 CERAMICFILTER,SFZ10.7MS2
Z2 9A09243900 CERAMICFILTER,SFZ10.7MS3
Z3 9A09244000 CERAMICFILTER,SFZ450B
Z4 9A09244200 CERAMICFILTER,BFU450CN
Z5 9A09244100 CERAMICFILTER,CSB456F11
−9−

POWER PCB ASSY
REF.NO. PARTSNO. DESCRIPTION
9A09525150 POWERPCBASSYB3852
9A09245200 PCB,B3850/B3852/B3853
9A09527900 KIT,B3582
F3 9A09241200 FUSEHOLDER
J5TOJ4 9A09245600 CONNECTOR,ED‑4886P
J9 9A09245400 WAFER,3963‑3P2T
T6£9A09245500 TRANSFORMER
−10−

86 74 52 31
E
D
C
B
A
SCHEMATIC DIAGRAM
T-1D
AM/FM Stereo Tuner
TT--11DD
1 st Issue; August 2002

86 74 52 31
E
D
C
B
A
SCHEMATIC DIAGRAM
T-1D
AM/FM Stereo Tuner
TT--11DD
1 st Issue; August 2002