Bang Olufsen Beomaster 8000 Service Manual

Page 3

Betjeningssystemet

Sandhedstabelleme kan, sammenholdt med ben numre pa microcomputeren 0g
stikben numrene, benyttes til blokfejlfinding i apparatet.

Hvor der ikke er angivet diagram nummer, ved siden af PC nummer, er
kredsldbene vist pa diagram 3.

Operation System The truth tables can, in relation with the pin numbers on the microcomputer
and the plug pin numbers, be utilized for block fault finding in the apparatus.
The circuits are shown on diagram 3 where no diagram number is stated beside
the PC number.
Bedienungssystem Die Wahrheitstabellen kénnen - im Zusammenhang mit den AnschluB-
Nummem der Mikrocomputer und den SteckeranschluB-Nummem - zur
Blockfehlersuche im Gerat benutzt warden.
W0 neben der PC-Nummer keine Diagramm-Nummer angegeben worden lst,
sind die Schaitkreise im Diagramm 3 dargestellt.
r DISPLAYi 7PC8 r - - - 1 r- -REMOTE AND POWER SUPPLY-PC6-.
I I I (DIAGRAM L) I
l I ' I
| I
I DIsplny I I
| L Power I
1 amps
' J 1 1c1Im/r. : I Supply I
' Driver Driver Driver I I i
' Phase 1 Phase 2 Phase 3 I r- o I
I 11:14:15 1R16I17 raw/19 ' '
I I 2 I? I
I L E _ _1 ________________ J
1 DIsploy (Vt-:10-
. Blackout] '-
1 Reset '
' I
I Dlspluy ogvzmme ov i
|
: ST P1 P5 IM-Store 5v I
| P2 P9 VOL-Store 7-Seg 7-Seg Logic ov I
I P3 PH Monitor Decoder Decoder Driver ON \ M I
1 PL m < Ic1 1C2 IC7/819 WW I
l P5 TPI > A f D A B C D ICE I
I re 51- Auto]
I 5! Man 1une y. |
I P7 Hit 9 3 7 2?; 14 15 16 21 , I
I 91c: 9 92 93 A a 5 7" Fe $333911 Pas-A
Yb"d Microcomputer (Musler) 5 E x 33 17 P35>5 I
I 7 5 u. 3, Y§ AFT -0N
I ,. u
1 Kat 2 g E :5 .3 3 -0 FM-UP I Pas-1
I E I
1 E f g g & mmwn no Pas-:1
I i 16 15 31 24. SICI- man '5 5'2
1 r _. _ __________ 7 Microcomputer (Slave) . I
I l I
I I I. ______ j I , TP 1 23 952.1 9 I
L ______________________ _I I : I ",2 22 Fez-3 ;' .
I Rem, | Vol. Tun 1
Beogrom H- I Receiver I Wheel Wheel I "1
61C1
Eeocord H- I 61122 I |
I 6TR25 I |
I STRZS I I
I L A , 7 0
I
I

L -REMOTE AND- P061
POWER SUPPLY 1
(DIAGRAM L)

(AF Blockaiagram)

FM 05:.
(Sand: 20mV)
98.2 - 110.7 MHz

'Iumng Control
(RF Blockdlugrum)

Audio Switch
(AF BlockdIugI-nm)

FUNCYION 11131.15 DISPLAY
91c3 91c3 V
PIN 15 16 17 13 19 20
Q N " m N .-
fi J u U u
< -- - - '- N
32% eaaag
0 90123 1* I
o 90P3 F 1
o 90P3 1 1
0 FM 10an E: I
0 FM 10MHz E: 1
0 FM IOMHz a 1
o 90P4,d9c5mg&m 1
o SDP1 < I
o 9091 > 1
0 FM 100MHz : 1
/ 0 VOL, LS 0,1 a 31!
o v01. M510 .9. II
0 BALANCE E: II
0 PGR. No. :3 311
0 FM 0mm 3 II
0 FM 110MHz 3 ale
as see FUNCTlON TABLE FOR 9104

FUNCTION TABLE 91c1~2 (5N74247)
[ECIMAL INPUT 5 OUIPU 15

ONfllSPLAYDCBAaDcdetg
0 00000000001
100011001111
2 00100010010
3 00110000110
1. 01001001100
5 01010100100
6 01100100000
7 01110001111
810000000000
910010000100
0FF11111111111

VFgNCTION TABLE MICROCOMPUTER BICA

FUNCTION FIN It 15 III 2 s :11 n
F1059, ' 9,0003% 0 ° 1
' V 79 o 9 1 o o
o o 1 o 0 o

, o o o o 1 o

MONITOR PH 0 0137301
Women 1122 'o o 1 1 o o
IgoNnon FM 0 n 0771770
"77m, ' T¥ :1 70 0 o I?
>Frm75ri? 7WD 7 V