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TX-800 



SERIAL No. 3329 



ONKYO SERVICE MANUAL 

QUARTZ SYNTHESIZED 
TUNER AMPLIFIER 
MODEL TX-800 



Black model 



BHUD, BHUDN 


120V AC, 60Hz 


BHUG 


220V AC, 50Hz 


BHUQA, BHUQB 


240V AC, 50Hz 


BHUW 


120 or 220V AC, 50/60Hz 



SAFETY-RELATED COMPONENT WARNING!! 

COMPONENTS IDENTIFIED BY MARK A ON 
THE SCHEMATIC DIAGRAM AND IN THE PARTS 
LIST ARE CRITICAL FOR RISK OF FIRE AND 
ELECTRIC SHOCK. REPLACE THESE COMPO- 
NENTS WITH ONKYO PARTS WHOSE PART 
NUMBERS 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. 



TABLE OF CONTENTS 

Specifications 2 

Service procedures 3 

Exploded view 4 

Parts list 5 

IC block diagram and descriptions 6 

Packing view 12 

Adjustment procedures 13 

Printed circuit board views 15 

Main circuit 15 

Display 15 

Other pc boards 23 

Semi-conductor views 16 

Schematic diagram 17 

120V model 17 

Other models 21 

Pc board-parts list 19 

Block diagram 24 



ONKYO 

AUDIO COMPONENTS 



-1- 



TX-800 



SPECIFICATIONS 



AMPLIFIER SECTION 

Power output: 

Musical Power Output: 

Continuous Power Output: 

Total Harmonic Distortion: 

IM Distortion: 

Damping Factor: 
Frequency Response: 
RIAA Diviation: 
Sensitivity and Impedance: 



Phono Overload (MM): 
Signal-to-Noise Ratio: 



Tone controls: 



35 watts per channel, min, RMS, at 8 ohms, both channels driven, from 40Hz to 20kHz, with 

no more than 0.3% total harmonic distortion. 

2 x 85! watts at 4 ohms, 1kHz (DIN) 

2 x 65 watts at 8 ohms, 1kHz (DIN) 

2 x 45 watts at 4 ohms, 1kHz (DIN) 

2 x 40 watts at 8 ohms, 1kHz (DIN) 

0.3% at rated power 

0.1% at 25 watts output 

0.3% at rated power 

0.1% at 25 watts output 

35 at 8 ohms 

20-30,000Hz ±1dB 

20 - 20,000Hz ±0.8dB 

Phono: 2.5mV/50 kohms 

CD: 150mV/50 kohms 

Tape Play: 150mV/50 kohms 

Tape Rec: 150mv73.5 kohms 

120mV RMS at 1kHz, 0.3% THD. 

Phono: 85dB (at 10mV input, A weighted) 

75dB (IHF A-202) 
CD/Tape: 95dB (A weighted) 

80dB (IHF A-202) 
Bass: ±10dB at 100Hz 

Treble: ±10dB at 10kHz 



TUNER SECTION 
FM: 

Tuning Range: 



Usable Sensitivity: 



50dB Quieting Sensitivity: 

Capture Ratio: 
Image Rejection Ratio: 
IF Rejection Ratio: 
Signal-to-Noise Ratio: 

Alternate Channel 

Attenuation: 

Selectivity: 

AM suppression Ratio: 

Harmonic Distortion: 

Frequency Response: 
Stereo Separation: 

Muting Level: 

AM: 

Tuning Range: 



Usable Sensitivity: 
Image Rejection Ratio: 
IF Rejection Ratio: 
Signal-to-Noise Ratio: 
Harmonic Distortion: 

GENERAL 

Dimensions (W x H x D): 

Weight: 



-220V/240V/ Worldwide models- 

87.50 - 1 08.00MHz (50kHz steps) 
87.50 - 1 08.00MHz (50kHz steps) or 
(1 00kHz steps) (Worldwide model) 



Mono: 



Stereo: 



Mono: 

Stereo: 

1.5dB 

85dB 

90dB 

Mono: 

Stereo: 



12.4dBf, 1 .2/xV, 75ohms 
1 .2/i,V (S/N 26dB, 40kHz Devi.) 
75ohms DIN 
19.2dBf,2.5)LtV,75ohms 
25/xV (S/N 46dB, 40kHz Devi.) 
75ohms DIN 
18.2dBf,2.2/xV,75ohms 
38.2dBf, 22/LtV, 75ohms 



70dB 
65dB 



50dB DIN (±300kHz, 40kHz dev.) 

50dB 

Mono: 0.15% 

Stereo: 0.30% 

30-15,000Hz±1.5dB 

40dBat1kHz 

30dB at 100-1 0,000Hz 

17.2dBf,4/xV 

522 - 1611 kHz ( 9kHz steps) 

522 - 1611 kHz ( 9kHz steps) or 

530 - 1 71 0kHz (1 0kHz steps) (Worldwide model) 

30/xV 

40dB 

40dB 

40dB 

0.8% 

435 x 115 x 320mm 
17-1/8" x 4-1/2" x 12-9/16" 
5.7kg., 12.6 lbs. 



-120Vmodel- 

87.5 - 1 08.0MHz (1 00kHz steps) 



Mono: 12.4dBf,2.3AtV 



Stereo: 18.2dBf,4.5/aV 



Mono: 

Stereo: 

1.5dB 


18.2dBf,4.5/LiV 
38.2dBf, 45/aV 


4UQD 

90dB 

Mono: 

Stereo: 


70dB 
65dB 



55dB 

50dB 

Mono: 0.15% 

Stereo: 0.30% 

30-15,000Hz±1.5dB 

40dBat1kHz 

30dB at 100 -10,000Hz 

17.2dBf.4LtV 

530 - 1 71 0kHz (1 0kHz steps) 



30/xV 
40dB 
40dB 
40dB 
0.8% 



-2- 



TX-801 



SERVICE PROCEDURES 

1. Replacing the fuses 

For continued protection against fire hazard, replace 

only with same type and same rating fuse. 

D (120V) model 

Circuit no. Part no. 

F901 252049 

G (220V) and Q (240V) models 

Circuit no. Part no. 

F902 252071 

W (Worldwide) model 

Circuit no. Part no. 

F901 252049 

F902 252071 



Description 
4A(ST-6),Primary 

Description 
1.25A-SE-EAK,Primary 



Description 

4A(ST-6),Primary 

1.25A-SE-EAK,Primary 



2.Safety-check out 

(Only U.S.A. model) 

After correcting the original service problem,perform 

the following safety check before releasing the set to 

the customer. 

Connect the insulating-resistance tester between the 

plug of power suuply cord and nickel screw on the back 

panel. 

Specifications: 3.3Mohm ±10% at 500V. 



5. Changing the band step 

With the exception of the models below, a BAND STEP 

selector switch is not provided. 

(FM) 



MODEL 


BAND STEP 


D713 


R122 


UD 


100kHz-»50kHz 


Additional 


27kH->27kn 


UG/UQ 


50kHz-*100kHz 


Eliminated 


27kO-+13kn 



(AM) 



BAND STEP 


D712 


10kHz-+9kHz 


Additional 


9kHz-^10kHz 


Eliminated 



In D712 ISS133 (Part No. 223163) is used. In D713 US1040 
(Part No. 223150) is used. R101 , with the muting amplitude 
determined, is on the back panel side of the tuner circuit 
printed circuit board assembly test points TP-1 and TP-2. 
(Refer page 13) 



□ 



iD7I3 
TAPE I y AM 

D7I2 



3-Change of voltage 

Worldwide models are equipped with a voltage selector to 
conform with local power supplies. This switch is located 
on the back panel. Be sure to set this switch to match 
the voltage of the power supply in your area before 
turning the power switch on. 

This swith is set to 220V at the factory. Voltage is 
changed by sliding the groove in the switch with the 
screwdriver to the right or left. Confirm that the switch 
has been moved all the way to the right or left before 
turning the power switch on. 



4.Step band selector switch 

Worldwide models are equipped with a step band selector 
switch. This switch is located on the back panel. This 
switch is set to 50kHz (FM) and 9kHz (AM) at the factory, 
but may have to be reset to 100kHz and 10kHz depending on 
the area where the unit is used. 
De-emphasis FM step AM step 

Europe: 50// sec 50kHz 9kHz 

U.S.A.: 75//sec 100kHz 10kHz 



6.Memroy preservation 

This unit does not require memory preservation batteries. 
A built-in memory power back-up system preserves contents 
of the memory during power failures and even when the 
unit is unplugged. The unit must be plugged in and the 
power switch turned on and off once in order to charge the 
back-up system. Note that since this is not a permanent 
memory, the power switch must be turned on and off a few 
times each month to keep the back-up system operative. 
The period of time during which memory contents are 
preserved after power has last been turned off varies 
depending on climate and placement of the unit. 
On the average, memory contents are protected over a 
period of 3 to 4 weeks (a minimum of 2 weeks) after 
the last time power has been turned off. This period is 
shorter when the unit is exposed to very high humidity or 
used in an area with an extremely humid climate. 



TX-800 



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TX-800 



IC BLOCK DIAGRAM AND DESCRIPTIONS 



Q705 

LC6538D-3984 (Micro processor) 



MEMORY SHIFT 



OIODE MATRIX 



r r r r r r r 



pDIRECT 



-\y-^- 



5 ^M& L gVfWrJ 



© L °^, L 



X2 

LOCAL 



-®- 






I — vw- 



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SEL 



AUTO/ MONO 



PHONO 



0702 SERIAL IN 

M & 



0703 
CODE 
CHANGE 



MUTE 
SW PROTECT 



IN/OUT 
TERMINAL^ 



~| " Q MA.N | * 

<S=±=J ANALOG *■ PRE -1-J J^>-lo^c 



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0511 



0107 
PLL 



P. F 

T~ 



FRONT 
END 



0104 
FM/AM IF 



0201 
MPX 



MUTE 
SW 



Pin No. 


Terminal 


Descriptions 


1 
2 


Sk 
SI 


These are the output terminal for segment signal. 
"H" when active. 


3 


DISPLAY 


This is the display control output terminal. "H" during FL tube lights on. 


4 


DIRECT 


This is the direct indicator output terminal. Not used. 


5 


FM 


This is FM control output terminal. Not used. 


6 
7 
8 
9 
10 
11 
12 
13 
14 


D9 
D8 
D7 
D6 
D5 
D4 
D3 
D2 
Dl 


These are the output terminal for digit and key scan signal. 
"H" when active. 


15 


Vdd 


This is the device power source terminal. At the time of operation, the supply is 5V. 
The internal data memory (RAM) is maintained by means of the super capacitor. 


16 

17 


OSC1 
OSC2 


This is the main system clock connection terminal. 
Connect to the 4.00MHz ceramic oscillator. 


18 


V ss 


Ground terminal. 


19 


TEST 


This is the test terminal for LSI. Connect to the ground terminal. 


20 


RES 


This is the reset terminal. Reset at the low level when the power is turned on. 


21 

22 


XI 

X2 


These are the sub clock input terminal. 
Not used. 


23 
24 
25 
26 


LOCAL 

DX 
AUTO 
MONO 


These are the auto reception mode indicator output terminal. "L" when active. 



-6- 



TX-801 



Pin No. 


Terminal 


Descriptions 


27 


POWER 


This is the power control output terminal. "H" when the power is turned on. 


28 


RELAY 


This is the speaker protection relay control output terminal. "H" when active. 


29 
30 


VDP 
VCR 


These are the video signal control output terminal. Not used. 


31 
32 
33 
34 


K0 
Kl 
K2 
K3 


These are the key return signal input terminal. "H" when active. 


35 


SD 


This is the auto stop input terminal. Auto tuning stops when this terminal becomes low level. 


36 


STEREO 


This is the input terminal for detection of the stereo broadcast. "L" when stereo broadcast. 


37 


RFIN 


This is IF signal level input terminal. DX mode when this terminal becomes the high level. 


38 
39 


REC 
BACK 


These are the mode setting input terminals. 


40 


PHONO 


This is PHONO control output terminal. "L" when selector switch is PHONO. 


41 


AUTO/MONO 


This is AUTO/MONO switching output terminal. "L" when AUTO. 


42 


SEL 


Connect to terminal SEL of analog switch. (Q324 LC7821) 


43 


DATA 


This is the serial data output terminal. 

Connect to terminal DATA of PLL IC (Q107 LM7001) and terminal DI of analog switch. 


44 


CLOCK 


This is the serial clock output terminal. 

Connect to terminal CI of PLL IC and terminal DI of analog switch. 


45 


PLL 


Connect to terminal CE of PLL IC. 


46 


DIRECT 


This is the direct control output terminal. "L" when active. 


47 


INP MUTE 


This is the muting output terminal for audio amplifier. U H" when the selector switch is 
operated. 


48 


REC MUTE 


This is the muting output terminal for recording. "H" when the selector switch is operated. 


49 




This is the input terminal for detection of stoppage of electric current. 
"L" when the stoppage of electric current. 


P. OFF 


50 


TU MUTE 


This is the muting output terminal of tuner section. "H" when active. 


51 


PROTECT 


This is the detection terminal for protection circuit. The speaker relay turns off when this 
terminal becomes the high level. 


52 


SYS IN 


This is the system code input terminal. "H" when active. 


53 


SYS OUT 


This is the system code output terminal. "L" when active. 


54 
55 
56 
57 
58 
59 
60 
61 


Sa 
Sb 
Sc 
Sd 
Se 
Sf 

Sg 
Sh 


These are the segment output terminal. "H" when active. 


62 


VP 


This is the power supply terminal for pull-down resistor. 


63 
64 


Si 
Sj 


These are the segment output terminal. "H" when active. 



Key and diode matrix 





Dl(14) 


D2(13) 


D3(12) 


D4(ll) 


D5(10) 


D6( 9) 


D7( 8) 


D8( 7) 


D9( 6) 


K3(34) 




AM 


TAPE-2 


M4 


M8 


MEMORY 


DIRECT 


PSET30 




K2(33) 




FM 


TAPE-1 


M3 


M7 


SHIFT 


FM MODE 


EU1/2 




KI(32) 




PHONO 


VCR 


M2 


M6 


M10 


UP 


AM9K 


VKEY 


K0(31) 


POWER 


CD 


VDP 


Ml 


M5 


M9 


DOWN 


FM50K 


PKEY 


















DIODE MATRIX 



TX-800 



FM50K (FM 


band setting) 










FM50K 


Region 


Frequency range 


Channel space 


Reference frequency 


IF frequency 


1 


Europer 


87.50 ~ 108.00MHz 


50kHz 


25kHz 


10.7MHz 





U.S.A. 


87.5 ~l()8.0MHz 


100kHz 


25kHz 


10.7MHz 



AM9K (AM band setting) 










AM9K 


Region 


Frequency range 


Channel space 


Reference frequency 


IF frequency 


1 


Europer 


522 ~ 1611 kHz 


9kHz 


9kHz 


450kHz 





U.S.A. 


530 ~~ 1710 kHz 


10kHz 


10kHz 


450kHz 



Q706 

FIP9BDM8 (FL tube) 



S2 

PRESET 
IMEMORYI 



1-10 



11-20 



TAPE-2 
MONITOR 



AUDIO 
MUTE 



I J I h I; si- 

I ISTEREOI ;FM MODE iirrrTUNED: 



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AUTO 



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9G 8G 

Terminal connection 



7G 



6G 



5G 



4G 



3G 



2G 



1G 



TERMINAL NO. 


1 2 3 


4 

I) 


5 


6 
p 


7 


8 

I> 


9 
p 


10 


11 
P 

(0 


12 


13 


14 
P 

(e) 


15 

P 

(d) 


16 
P 

(c) 


17 


18 

P 

(b) 






ELECTRODE 


F F NP 


(J) 


9G 


(i) 


8G 


(10 


(g) 


7G 


NP 


6G 


5G 






TERM1NALNO. 


19 


20 


21 


22 


23 


24 


25 


26 


27 


28 
P 
(si) 


29 


30 


31 


32 


33 


34 


35 


36 


ELECTRODE 


i 
(a) 


NP 


4G 


1 

(k) 


t 

Co 


NP 


3G 


(s2) 


2G 


1G 


NP 


NP 


NP 


1G 


NP 


F 


F 



Notes 



F: Filament 
G: Grid 
P: Anode 



NP: No Pin 



Connection of fluorescent tube and microporcessor 





D9 

(6) 


D8 

(7) 


D7 


D6 
(9) 


D5 

(10) 


D4 

(11) 


D3 
(12) 


D2 

(13) 


Dl 

(14) 


Sa 

(54) 


a 


a 


a 
b 


a 


a 


a 


a 


a 


a 


Sb 
(55) 


h 


b 


b 


b 


b 


b 


b 


b 


Sc 
(5fi) 


c 


c 


c 


c 


c 


c 


c 


c 


c 


Sil 

(57) 


d 


d 


d 
e 


d 


d 


d 


d 


d 


d 


Sc 

(58) 


c 


e 


e 


e 


e 


e 


e 


e 


Sf 
(59) 


f 


1 


f 
g 


f 


1 


f 


f 


f 


f 


(60) 


g 


g 


g 


g 


g 


g 


g 


g 


Sh 
(61) 


MEMORY 


h 


li 


h 








FMMODE 




Si 
(63) 


i 


i 


i 






/ 
/ 




AUTO 


▼ 


Sj 
(64) 


J 


J 


11-20 


TAPE-2 


MUTING 


STEREO 




MONO 


HUH 


Sk 

(1) 






k 


k 


k 








kHz 


SI 

(2) 


1 




1-10 




CM 








MHz 



( ): Pin number of micro processor 



Q107 

LM7001 (PLL synthesizer and controller) 



TX-800 



SYCO^A- 



XINo^ 
XOUT<^ 



fminoUa. 



AMIhP% 



> 



Phase Detector 
Charge Pump 



■ — *-£>o~ — Reference Divider 

r^n I * 

T^ Vn ' : 

Tfr A Programable Divider 



1' 



&u 



n 



►— oPD1 
<&>PD2 



Shift Register • Latch 



CE CL DATA 



W<M 



n sx 9 



,12. 



•VDD1 



H £oVDD2 



>V5S 



Pin No. 



1 



10 



11 



12 



13 



14 



15 



16 



Terminal 



XOUT 



XIN 



CE 



CL 



DATA 



Description 



Connect to the 7.2 MHz crystal oscillator. 



Chip enable terminal. Connect to the PLL terminal of micro processor. 



Serial clock input terminal. Connect to the CLOCK terminal of microprocessor. 



Serial data input terminal. Connect to the DATA terminal of microprocessor. 



SYN 



BOl 



B02 



B03 



AMIN 



FMIN 



VddI 



Vdd2 



PD1 



PD2 



Vss 



Not used. 



Not used. 



FM control signal output terminal. "L" when FM. 



AM control signal output terminal. "L" when AM. 



AM local oscillator input terminal. 



FM local oscillator terminal. 



Power supply terminal for back-up. 



Power supply terminal. 



Charge pump output of the phase detector which constitutes the PLL. High level is output when the 

divided local oscillator frequency is high than the reference frequency. 

In the opposite case, low level is output. Floating occurs when the frequencies matched. 

The output is applied to the variable capacitor diode in the local oscillator through the low pass 

filters. 



Ground terminal. 



-9- 



TX-800 



Q324 

LC7821 (Analog switch) 



( I ) Lio- 

( 2 ) L20- 

( 3 ) L30- 
( 4 ) L40- 
( 5 )LCOMIO- 
( 6 ) L5o- 
( 7 ) L60- 
( 8 )UC0M2O- 
( 9 ) L70~ 
( I ) L8o- 
( I I )LC0M3<>- 

( 19) Vooo- 

(16) V ss °- 

(I2) V E e 

( 18) RES 

( 17) So- 



-Sfa 



-&£ 



-BS= 



-*£ 



-Bg= 



-Sfa 



-*S= 



r=Bh 



=68- 



dBH 



:=W- 



c=&- 



=£*- 



I LEVEL SHIFT I 

L — 3E — 



o-^O 



rE 



f? 



SHIFT REGISTOR 






-<^—0 



-ORI (30) 
-OR2 (29) 
-OR3 (28) 
-OR4 ( 27 ) 
-ORC0MK26 ) 
-OR5 (25) 
-OR6 (24) 
-ORC0M2( 23) 
-OR7 (22) 
-0R8 (21) 
-ORC0M3(20) 



>DI ( 14 ) 
>CL ( 15 ) 
>CE ( 13) 



Serial data composition 






Switch 










f 












-\ 


AO 


A1 


A2 


A3 


sw 

1 


2 


3 


4 


5 


6 


7 


8 



ADDRESS 











o 














LU 


CQ 












QC 


DL 


111 




O 


fT 




T- 


T- 


o 




Z 


UJ 




LU 


III 


cc 




0_ 


Z 


Q_ 


Q. 


Q_ 


ID 


(J 


J. 


D 


n 


< 


< 


o 


U 


Q_ 


\- 


> 


h- 


r- 


CO 



The source becomes ON when the bit of 
switch becomes the high level. 



hi 

CL 

< 



(Q312) 



Pin No. 


Terminal 


Description 


Pin No. 


Terminal 


Description 


1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 


CD 

PHONO 

TUNER 

L COM 1 

VDP 

VCR PLAY 

L COM 2 

TAPE 1 PLAY 

L COM 3 


Input/output terminals of audio signal 
of right channel. 

Control to the inside analog switch at 
the serial data. 


16 


Vss 


Ground terminal. 


17 


S 


Selector terminal. 


18 


RES 


Reset terminal. When power is turned 
ON, the condition of the analog switch 
is not determined, but when this ter- 
minal is "L", all analog switches are 
OFF. 


19 


VDD 


Power supply terminal. (+15V) 


20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 


R COM 3 

TAPE 1 PLAY 

R COM 2 

VCR PLAY 

VDP 

R COM 1 

TUNER 

PHONO 

CD 


Input/output terminals of audio signal 
of left channel. 

Control to the inside analog switch at 
the serial data. 


12 


V EE 


Negative power supply terminal. 
(-15V) 


13 


CE 


Chip enable terminal. Connect to SEL 
terminal of micro processor. 


14 


DI 


Serial data input terminal. Connect to 
DATA terminal of micro processor. 


15 


CL 


Serial clock input terminal. Connect to 
CLOCK terminal of micro processor. 



Q301, Q401, Q402 

NJM4558D-X (Operation amplifier) 



Vcc 



8 [ | 7 | | 6 | | 5 
12 3 4 



Q501 

STK4151V (Power amplifier IC) 



TO3 r^3'*h T ' 



. TR5 ryR7 

i i $ rfci 



02^5 



rg;™ 61 



5$u 



Vee 




-10- 



Q104 

LN1266 (FM IF & AM radio system) 



TX-800 



AN IF STRQ 

1 1 ia— 

t 



I F 
BUFFER 



FN IF 

10— 

t 



I F 
BUFFER 



FN IF 
IN 

— 1 

I 

I 



IF ANP 
STOP 
— 2 3- 



IF 10.7MHz 
OUT IN 

-5 6 

t * 



Vcc 
-7 — 



FM I F AMP 



AN IF 18- 

IN I 

AN IF 20- 
OUT 



AM 
RF 



LEVEL 
DET 



LEVEL 
DET 



QUADRATURE 






POST 
AMP 




DETECTOR 




















S 
CURVE 













12 FN 
OUT 



I F 
AMP 



DET 



NARROW 

S 
METER 



i 

U 



15 AN 
OUT 



S 
METER 



i r 

17 16- 



LED 
DR I VER 



OSC 
IN 



OSC 
OUT 



Q201 

AN7470 (Stereo decoder) 





nn 






nil 




rrn 




Hal 




Hfl 




nri 




nn 


m 














1 




1 


L_ 






1 














* 














VCO 
76 kHz 






PHASE 

LOCK 

DETECTOR 




PILOT 
PRESENCE 
DETECTOR 


1 




STEREO SW 
LAMP 
DRIVE 












C — 
























i 


i 




_i 










I 


























STEREO 

MONO SW 

VCO STOP 

SW 






76 kHz To 

38 kHz 
DIVIDER 




38 kHz To 

19kHz 
DIVIDER 




38 kHz To 

19 kHz 
DIVIDER 




s 










J 






f/ 




I 










I 






























LCH 
POST AMP 












' 


1 ' 














? 








1 




— »> 






PREAMP 






NF AMP 






STEREO 
DEMODULATOR 


1 




















RCH 
POST AMP 


1 




1 






-■"■ 1 




















































^ 
























' 


' 






1 





ULiJLiJLiJLiJLiJLiJLiJ 



-11- 



TX-800 



PACKING VIEW 




REF. NO. 


PART NO. 


DESCRIPTION 






1 


29100034 


850 x 650mm, Poly-vinyl bag 


-220V/240Vmodels- 


2 


29051890 


Master carton box 


29341407 


Instruction manual 


3 


282301 


Sealing hook 


292092 


FM antenna 


4 


2909 1328 A 


PadR 


232140 


NMA-3057, AM loop antenna 


5 


2909 1327 A 


PadL 


29100097 


250 x 350mm, Poly-vinyl bag 


6 


261504 


Adhesive tape 


25060123 


FM adaptor (240V model) 


7 


260012 


Damplon tape 


-Worldwide model- 


8 


Accessary bagass'y 


29341407 


Instruction manual 




-120Vmodel- 




292092 


FM antenna 




2934 1397 A 


Instruction manual 


232140 


NMA-3057, AM loop antenna 




292064B 


FM antenna 


29100097 


250 x 350mm, Poly-vinyl bag 




v . 232140 


NMA-3057, AM loop antenna 


25060123 


FM adaptor 




291Q0097 


250 x 350mm, Poly-vinyl bag 


25055018 


CV-K-1, Conversion plug 




29365019 

29358002G 


Warranty card (U.S.A. model) 








Service station list (U.S.A. model) 







12- 



1 



1! 

21 

2 1 

li. SI 





Si 


2 




£r 


3 


J8E 


'-W-' 




|§ 
51 



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si TT t ~ 

ll 

E* u 

II 

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u. 
a 

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o 




|®nTP6 
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DTP4 
DTPI 
DTP2 



® 



CO 
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LU 

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oc 

Q. 

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LU 



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si-ss 






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OS 


v 2 &■£ S 






3 .2 






■S * « 3 Sj 


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ji 






X 












to 


> 


E 


+1 


E 


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P 


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3 


3 








T3 


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+1 

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C 




c 


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DC 


bo 




S 




s 


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t-l 


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18. 








C « 














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cr c 

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>-> 5o -o 


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+1 +1 +1 +1 +1 +1 +1 +1 



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TD U T3 -O -O 
O T3 O O 

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DC X ^5 
+' +i 2 fj | 5 



vi m , , 



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PRINTED CIRCUIT BOARD PARTS LIST 



TX-800 



MAIN CIRCUIT PC BOARD (NAAR-3558-2/2A/2B) 
CIRCUIT NO. PART NO. DESCRIPTION 





Front end 




U001 


240084 


TFFG2U122A<D> 




240085 


TFFG4E122A<G/W> 




ICs 




01 04 


22240039 


LA 1266 


Q107 


22240090 


LM7001 


Q20I 


22240242 


AN7470 


Q301 


222502 


NJM4558D-X 


Q324 


22240079 


LC7821- 


Q501 


222044 


STK4151V 


O902 


222780125 


78M12HF 


Q906 


222780055 
Transistors 


78M05HF 


QI01 


2211723 


2SC1923-0 


Q102 


2210746 


2SC945A-P <G/W> 


Q103 


2211255 


2SC18I5-GR 


01 05 


2212294 


2SK108-D 


Q106 


2211255 


2SC18I5-GR 


QI08,OJ09 


2212600 


DTA124ES 


Q202, Q323 


221 1455 or 


2SA1015-GRor 


Q505,O506 


2212495 


JA101-Q 


Q203, O204 


2212285 or 


2SC2878-A or 


0321,0322 


2212286 


2SC2878-B 


Q503, Q504 


22 12285 or 


2SC2878-A or 




2212286 


2SC2878-B 


Q507,Q508 


221 1732 or 


2SC1845-For 




22 11733 


2SC1845-E 


0509,0510 


221 1255 


2SC1815-GR 


0511 


2210746 


2SC945A-P 


Q903 


221 1455 or 


2SA10I5-GRor 




2212495 


JAIOi-Q 




Diodes 




D101,D102 


223132 


1 K60 


DI03 


223150, 


US 1040, 




223 145 or 


lS2076TDor 




223124 


1S2473 


D2OI.D501 


223163 


1SS133 


D502 


224 1505 12 or 


05AZ5.1Yor 




224450512 


MTZ5.1B 


D503 


223163 


1 SSI 33 


D901 


22380023 


RBV401 


D902 


223862 or 


WLOlor 




223890 


W01RL 


D903,D904 


22415 1202 or 


05AZ12Yor 




224451202 


MTZ12B 


D906 


223880 or 


GP101N4003or 




223896 


1N4003F 


D907 


223163 


1SSI33 


D908 


224 1 52703 or 


05AZ27Zor 




224452703 


MTZ27C 


D910 


224450512 
Transformers 


MTZ5.1B 


L101 


233401 


NFIF-4072 


L102 


233402 


NF1F-4073 


L152 


232139 
Coils 


NMIF-4062 


LI 03 


233383 


NMC-6070<G/W> 


L201,L202 


233294 


NMC-5040<G/W> 


L501,L502 


231001 
RF block 


S-1.3B 


L151 


232152 


NMRF-7052 



CIRCUIT NO. 

X101,X103 
X10I 

X102 
X151 

XI52 



X104 

C001 

C106 

C107 

C108 

C112 

C113 

C116 

C117 

C118 

C119 

C123 

CI 54 

C155 

C156,C157 

C159 

CI 60 

C201 

C202 

C204,C205 



C206 

C207 

C208 

C209 

C210 

C212, 

C215, 

C217, 

C219 

C301, 

C307, 

C309 ; 

C311, 

C313, 

C315, 

C333 

C334 

C501, 

C507, 

C511, 

C513, 

C515 

C521 

C523 

C525 

C526 

C905 : 

C907. 

C910 ; 

C911 

C915, 

C917, 



C213 
C216 

C218 

C302 
C308 
C310 
C312 
C314 
C316 



C502 
C508 
C512 
C514 

C522 



C906 

C908 
C912 

C919 
C921 



PART NO. 

Ceramic filters 

3010071 
3010070 
3010137 
3010123 
3010076 



R101 



X'tal 

3010141 

Capacitors 

354741009 

354784799 

354742209 

354784709 

354780229 

354784799 

371122234 

371123334 

354780229 

354782299 

354721019 

354780479 

354784709 

354741009 

371123334 

371122234 

354744719 

354741009 

371121824 

371121224 

371121524 

371124734 

370134714 

354780109 

354780339 

354782299 

354741009 

354780229 

371123924 

354780229 

354780229 

354721019 

37l 126224 

371121824 

354780229 

354741019 

354741009 

354780229 

354780229 

354742219 

354784709 

354781019 

354781009 

371124734 

354722219 

354780479 

354780109 

3504207 

354742219 

354784709 

354752229 

354781009 

354741009 

Resistors 

52 10070 or 
5210221 



DESCRIPTION 

SFE10.7MA5<D> 
SFE10.7MS3GYA <G/W> 
SFE10.7MMK <GAV> 
SFZ450JL 
BFU450C 

XTL-7.2M 

10/aF, 16V, Elect. 

0.47,xF, 50V, Elect. 

22/aF, 16V, Elect. 

47^F, 50V, Elect. 

2.2 j*F, 50V, Elect. 

0.47/llF, 50V, Elect. 

0.022^F±5%,50V,Mylar 

0.033 aaF ±5% , 50V, Mylar 

2.2 fiF t 50V, Elect. 

0.22/LtF, 50V, Elect. 

100 mF, 6.3V, Elect. 

4.7 /xF, 50V, Elect. 

47/txF, 50V, Elect. 

lOjiF, 16V, Elect. 

0.033MF±5%,50V,Mylar 

0.022/ Jt F±5%,50V,Mylar 

470 /*F, 16V, Elect. 

10/LtF, 16V, Elect. 

1800 pF±5%, 50V, Mylar <D> 

1200pF±5%, 50V, Mylar <G> 

1500pF±5%,50V,Myiar<W> 

0.047 /aF ±5%, 50V, Mylar 
470pF±5%,100V,APS 

1/aF, 50V, Elect. 
3.3 ^F, 50V, Elect. 
0.22/xF, 50V, Elect. 

IOaiF, 16 V, Elect. 
2.2 pF, 50V, Elect. 
3900pF±5%, 50V, Mylar 
2.2/aF, 50V, Elect. 
2.2 /xF, 50V, Elect. 
100 /aF, 6.3V, Elect. 
6200pF±5%, 50V, Mylar 
1800pF±5%, 50V, Mylar 
2.2 /xF, 50V, Elect. 
100/uF, 16V, Elect. 
10^F, 16V, Elect. 
2.2 AtF, 50V, Elect. 
2.2 ,uF, 50V, Elect. 
220 M F, 16V, Elect. 
47/aF, 50V, Elect. 
100 AtF, 50V, Elect. 
10/aF, 50V, Elect. 
0.047 aaF ±5%, 50V, Mylar 
220 /aF, 6.3V, Elect. 
4.7/aF, 50V, Elect. 
1/aF, 50V, Elect. 
6800/aF, 50V, Elect. 
220 jaF, 16V, Elect. 
47aiF, 50V, Elect. 
2200/aF, 25V, Elect. 
10/aF, 50V, Elect. 
10/aF, 16V, Elect. 

N06HR100KBD 
Semi-fixed 



— 1< 



DESCRIPTION 

N06HR4.7KBD or 
N06HR5KBD, Semi-fixed 
N06HR220KBDor 
N06HR200KBD, Semi-fixed 
3.3kohm, 1/2W, Metal oxide film 
9.1ohm, 1/2W, Metal oxide film 
BPR2FK-0.1, Metal plate 
8.2ohm, 1/2W, Metal oxide film 
910ohm, 2W, Metal oxide film 
68ohm, 2W, Metal oxide film 
lOohm. 1/2W, Metal oxide film 
lohm, 1/2W, Metal oxide film 

NTM-4PDMN29, Antenna <D> 
NTM-2PDMN31, Antenna <G/W> 
NTM-8PDML34, Speaker 
NPJ-6PDBL124 
NPJ-6PDBL92 

NRL-2P5A-DC24-046 



DISPLAY CIRCUIT PC BOARD (NADIS-3559-2/2A/2B) 
CIRCUIT NO. PART NO. DESCRIPTION 



CIRCUIT NO. 


PART NO. 


R201 


5210062 or 




5210216 


R202 


5210072 or 




5210222 


R513-R516 


442523324 


R517,R518 


442520914 


R519,R520 


4500001 


R527-R530 


442520824 


R902, R903 


441729114 


R904 


441726804 


R906 


442521004 


R913 


442520104 




Terminals 


P001 


25060085 




25060087 


P501 


25060093 


P301 


25045252 


P302 


25045213 




Relay 


RL501 


25065339 





IC 




Q705 


22240244 
Transistor 


LC6538D-3984 


Q707 


2212600 


DTA124ES 


G704 


221282 
FLtube 


DTC144ES 


Q706 


212075 
Diodes 


FIP9BDM8 


D708-D711 


223150, 


US1040, 


D714-D717 


223145 or 


lS2076TDor 




223124 


1S2473 


D712 


223163 


1SS133<G> 


D713 


223150, 


US1040, 




223145 or 


1S2076TD or 




223124 


1S2473 <G> 


D718-D720 


223163 


1SS133 


D721 


223150, 


US1040, 




223145 or 


lS2076TDor 




223124 


1S2473 


D722 


223163 


1SS133 


D729 


224150622 or 


05AZ6.2Yor 




224450622 


MTZ6.2B 


D730,D732 


223163 


1SS133<W> 


D731 


223150, 


US 1040, 




223145 or 


lS2076TDor 




223124 


1S2473<W> 




L.E.Ds 




D723,D725 


225137CG, 


SEL2413E-CG, 




225137DGor 


SEL2413E-DGor 




225137DY 


SEL2413E-DY 


D724. D726 


225142 


SEL2913K 



CIRCUIT NO. 


PART NO. 
OSC element 


DESCRIPTION 


X702 


3010150 
Coil 


CST4.00MGW 


L701 


233400K220 
Capacitors 


NCH-2238 


C704 


3000051 


0.047F, 5.5V, Super 


C707 


354780109 


1 /*F, 50V, Elect. 


C708 


375524744 
Resistors 


0.47/^F ±5%, 50V, Plastic (MTT) 


R709 


49163473406 


47kohmx6, 1/10W, Network 


R711 


49163104404 


lOOkohm x4, 1/10W, Network 


R717 


49163473405 
Switches 


47kohmx5, 1/10W, Network 


S701-S721 


25035548 


NPS-111-S510 


S722 


25065286 
Holder 


NSS-22112, Slide, band <W> 




27190700 


L.E.D 



TONE CIRCUIT PC BOARD 

CIRCUIT NO. PART NO. 



(NAAF-3560-2/2A) 

DESCRIPTION 





ICs 




Q401.Q402 


222502 
Capacitors 


NJM4558D-X 


C401,C402 


354780229 


2.2 yxF, 50V, Elect. 


C405,C406 


354780229 


2.2 ^F, 50V, Elect. 


C407,C408 


371122234 


0.022^F±5%,50V,Mylar 


C409,C410 


354780339 


3.3 /xF, 50V, Elect. 


C411.C412 


371122234 


0.022 /aF ±5%, 50V, Mylar 


C413,C414 


354741019 


100 /iF, 16V, Elect. 


C443,C444 


371124734 
Resistors 


0.047/*F±5%,50V,Mylar 


R405 


5104228 


N14RHC250KWT22Z, Variable 
Balance 


R417 


5104229 


N14RHC100KWT22Z, Variable 
Treble 


R421 


5104229 


N14RHC100KWT22Z, Variable 
Bass 


R449 


5142001 
Switch 


N16RGP100KBTP25, Variable, 
Volume 


S441 


25035611 
Socket 


NPS-122-L573 


JL304a 


25050378 


NSCT-3P205 



SPEAKER SWITCH PC BOARD (NASW-3561-2/2A) 



CIRCUIT NO. 

R551,R552 

S551 
P551 



PART NO. DESCRIPTION 

441622714 270ohm, 1W, Metal oxide film 

resistors 
25035610 NPS-122-142-L572, Speaker * 

switch 
25045256 YKB21-5010, Headphone jack 

<D> 
25045255 YKB21-5009, Headphone jack 

<G/W> 



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POWER SUPPLY PC BOARD 



POWER SUPPLY CIRCUIT PC BOARD (NAPS-3563-2/2A/2B) 
CIRCUIT NO. 

C901 

R901 



NOTE: THE COMPONENTS IDENTIFIED BY MARK A 
ARE CRITICAL FOR RISK OF FIRE AND 
ELECTRIC SHOCK. REPLACE ONLY WITH 
PART NUMBERS SPECIFIED. 



S901 



PART NO. DESCRIPTION 

3500065A ADE7150FZ103PAC400V/125V, 

Capacitor IS 
27301216 ASB1925,CoverforC90KG/W> 

431523355 A 3 - 3Mohm > 1/2W, Solid resistor 

<D> 
25035550 A NPS- 11 1 -L5 12P, Power switch 



CIRCUIT NO. PART NO. DESCRIPTION 

F901a 2501 13 A SN5051 , Fuseholder <DAV> 

F902a 25050065 A YSH4037, Fuseholder <GAV> 

F901 252049 A 4A(ST-6), Fuse, primary <D/W> 

F902 252074 A 2A-SE-EAK, Fuse, primary 

<G/W> 
29360626-1 A Label > fuse <D> 
29361169 AT1.25A 250V, Label, rating fuse 

<G/W> 



NOTE: <D> : Only 120V model 

<G> : Only 220V/240V models 
<W> : Only Worldwide model 



-23- 



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