Becker 755 - Page 16

Wiring board 753 E 2180
Circuit 753 E 2180
Motor +
Motor -
‘Schaltungsplatte 753 E 2180
$74/S75 <a— —
Schaltelemente stehen senkrecht
Switch components are vertically
Elements de circuit sont verticals
Anschlusse sind unten
e— Connections are below
Connexions en bas
Schaltungsplatte 720 E 2158
Wiring board 720 E 2158
Circuit 720 E 2158
<< —_
a
}- ———& UBARA
——-— > TBSVR
——-—® TBUMS
——-—®> NFRIB ———® MASNF
———> NFLIB
———> UTONB
——- TBAUS
“—-+> $70
a
wb
Zz
MASNF
M/N NFR
UTONG <+ ——/
Gestrichelte Bauteile liegen auf der Bestiickungsseite unten
Lotseite oben
Spannungswerte an Schaltungsplatten 753 E 2180 / 720 E 2158
Voltage values at wiring board 753 E 2180 / 720 E 2158
Valeurs de tension aux circuits 753 E 2180 / 720 E 2158
Gemessen mit Oscilloscope HAMEG 103 / Measured with oscilloscope HAMEG 103 / Mesuré avec oscilloscope HAMEG 103
MASNF <@—— —
Ts
T 621 T 701 T702 | 1721 | 1722 | 1723 IC 351
E 12V la2vos.| 115V | 14v [| ov [ 14v 1 | 12V +S | 29V 9] 28Vv
B 13V 12V 14 v [| 14v [ ov [ t4v 2 {| 32v [6 | 29v
C iv [72vos.[a82vos.]| ov [| 14v ] ov [3] ov [7 ]| 29v
| | | 4[32v [8] ov
IC 621 (Dolby-Ein) IC 621 (Dolby-Aus)
1 | gsv [5 ov [9] 92Vv 8 12,5 V 9 | [13
2 | sav [6 | 6av fiol 6iv [is] 62v
[3 | 6iv [7 | 62v [ul 6av [15] 62v
4 | 6iv [8 3v_|i2] o7v [16] 66V
IC 701 IC 721
1 [svos.[1 ]14vos.] 5 [ ov 9 ]13V [13 [14VbDS.
2 |[7vos. | 2 [14v 6 [14vos.| 10 |14V 14V
3 [ov 3 [44v 7 [ov 11 [44Vv
4 |14Vv 8 [i4vos.[ 12 [4voDs. |
16
Schaltungsplatte 755 E 4110
Wiring board 755 E 4110
Circuit 755 E 4110
AM-HF
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DATEN
DLEN1
SDATA
STROB
HOEHE
BASS
BALAN
UKLAN
RESEQ
MASSE
UPSVS
EINTQ
UDRUR
ANK?5
BELLE
BELKL
CLCK
UBATT
Spannungswerte bei eingeschaltetem Geradt (Antenneneingang offen), gemessen mit Oscilloscope HAMEG 103
Voltage values when radio is switched on (antenna input open), measured with oscilloscope HAMEG 103
Valeurs de tension si la radio est mise en marche (entrée d’antenne ouverte), mesuré avec oscilloscope HAMEG 103
eo
T102 | T103 | T 104 T105 | T106 | T201 | T401 | T501 | T551 IC 51 IC 81
E OV 14V OV 7.9V sv [ 2iv [ee] 2iv | aiv [ o2sv ov | a5v [ ov | ov 1 14v [4 5iv | 4] 5v
B | o7v | i3v [o75v[s | o1Vv ov | ov |B] 26v 75V [ iv[o4av | sv [| ov [ ov 2 ov |2]|45v [5] 14v
somv | 14V |[100mv[Gil ov OV ov [cl] siv sv | 58v [| ov [s50mv] ov [| ov [3 | 85v [3 ov | |
G2| 44v | o6v 17Vv_|
IC 151 IC 201
[5 neal 6 PO Sab ee 6 |7,8V 108 MHz| 10 [3,9 V 14 |38vDs.| 1 ov [5 |] 39V 9[ 47Vv_ | 13 ov [17] 25Vv
6 [18V146kHz| 6 [53V_ 59MHz| 7 [13V 11 [39V 15 | ov 2 [o35v [6] 49v [10[ 47v [14] 79v [18] 25Vv
6 [7,9V290kHz| 6 | 8V 625MHz| 8 [38V [12 | s5vos.| 16 [59Vv 3 38v [7 [4iv [11[ 43v [15] aiv | |
6 [07 V513kHz| 6 [21 V_ 87,5MHz| 9 [59V [13 | s5vos.[ 17 [11Vv 4 ov[s |] av [12 ov [ie] 25v | |
Lis; ov]
IC 401 | IC 451
1 [47Vv 5 | 5iv [| 9/5vps.[13 | 50mv|17 | 28v [5 |39V | 9| 19V 113] 36V [17] 38V
2.| 5vos|/6]/ 5iv [10|/5vos.[i14][ siv [2 gv | 6 — 10 2v_ [14] 38v_ | 18 OV
3 [17V 7 | 5iv [11] s50mv [15] siv [3 [ a3v [7 |] at9v [11] 43v [is | a2v |
4 [51V a | somv [12] 5somv [i6[ 5iv [4 [ 42v [se [| a3v [12] i9v [ie] isv |
IC 501/IC 551 ]
1] 14v [5] i4v [ 9] 14Vv
2 | o8v | 6 ov [10] 68v
3 | a3sv |7|wav iu] iv]
4[o7v [8 | 68v
Bei Spannungsmessung an IC 401, 451: Lautstarke max., Héhen und Tiefen-Mittelstellung
Voltage measurement at IC 401, 451: max. volume, mid-position treble/bass
En cas de mesure de tension a ’IC 401, 451: Volume max., tonalité — position médiane
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