Blaupunkt Bremen - Blaupunkt Bremen Schematic and Measurements; Resistance and Voltage Test Points; Vibrator and Power Supply Circuitry

----
e
ANTENNA
INPUT
40
_ ____
MIXER
460KC
IF AMP
460KC
_____ .,
DET·AVC · AF AMP
OUTPUT
e@A ECH8T
[----~-[~~f---
90) EF89 @]@] i e@ EBC9T
e@EL84
@)
0l-i
@
'
@J
:
r--------I
, , ,
, , ,
,
,
i
,
,
,
,
,
,
,
,
:
,
,
i
,
:
,
,
,
,
,
:
,
I
@5;60mmll'J,
:
,
I
I
I
@=t6smmll'J,
- --- --1
,
,
,
e
, @l
i ~ !
II
1 I 30mml II)'J.
@[
,
[(@:j:;"~ •• ® ~ OO''' U Ol
5. sa :
,
,
'6.3V/)2.6V~ fl9\
,
: sou RCE 8 AMP . I@I..LI ' "'OS ~
: lZV 'e' =
2
!, . e@
,
,
@Y . @]
111
,
,
,
,
4
:
:
,
@
~
60mml
,
,
'l'J,
J _____ _
,
RES I STANCE READ INGS
I MEASURED FROM O~ TPUT OF ,',II.
NC NO CONNE C TION
e SEE PARTS LIST FOR ALTERNATE
VALUE OR APPLICATION
ITEM
TUBE Pin I Pin 2
Pin 1
Pin 4
Pin S
Pin 6
Pin)
Pin 8 Pin 9
VI
ECHSt
j JOK
2.2meg
on , 5n
On
T S3000
SDK
tllK SDK
VZ
EF89
00 I, Zmeg On
. So on on
t 5JOO o
n OOK
on
Vl
EABC9t 1. 5meq
on
, So
on
250K
500K
1 JOOK
V4
EIl!4
500K
500K
On
.50
00
NC
t 44()o
NC tJOOn
:~.l:
, OS
POWER TRANSFORMER &
HEATER FILAMENTS ARE
WIRED FOR 6 VOLT
OPERATION
@)
@
::.=.:::.::.=.
@!50mld
@r-
5()mld
1. DC vOltage measuremen15 taken with vacuum tube vol1meter .
2. Socket connections shown as bottom views.
3. Mea s ured values are Irom socket pin to common nega1:ive.
4, Batlery voll"l' maintained ,I 6. 1 vol I, lor ,olt"le readings.
5. Nominal tolerance on component values makes pos5sible a
variation
ohl 51J" voltage and resistance readings.
6. Volume con1rol at maximum, no siqnal applied lor voltage
I( : ,1AiI1
150
r---
,r.;- -;-; •• :-:-.:- . - --+ 1 --, ,.I ,./
®
JOK
€Di
OI
@~ 5OOl~lW
e
@I
"§
lOOK
@
.. 1 % :
r
lOOK
--------'
:,' I :
t/----- t-
J
OSC
9@B ECH8T
@)~05
@
- H-
8..L
OS
@I@
10000
.005 @ f !me<)
@>~ 500K
8
§~lmeqF I@)~ ,I
)Qm"l @
1= !CII.
@l ~ 2IlK
V\I'v
@l~.025
@) ~ 1000
JOo
@
I V\i\, I ~======== =
30K 2W
~ ~ ~ I J6tU~E
. ~
@ ~ SDK
VIBRATOR ®
@
@l
1
j
i @s 10K
eJI50m'd
J .
@:J;
, III)'J.
1( 54ma
275V
e@
@A~32ml®B
l2mld
JOOQ
lW
§+OS