Grundig UMS 11 Servicehandbuch Seite 21

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UMS 11 ... UMS 12-S
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Blockschaltplan / Block Diagram
+12M
+12V
+ -
M
TA8142
ATTEN
+5V
LA1832
ATTEN
PLL
LC72131
+5V +8V
ATTEN
CD
ASP
LA9240
DSP
LC78622
INPUT REFERENCE LEVELS
CD-SL 0dB Track 1kHz
TUNER FM 90% mod 1kHz
TUNER AM 80% mod 1kHz
TAPE 200nWb/m 400Hz
LEGEND
SIGNAL
SUPPLY IN
SUPPLY OUT
CONTROL
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
+8V
MODE
VOLUME
SELECT
CONTROL
LC75394NE
LOGIC
+5V +8V
A0
A1
T APE CTRL
TUNER CTRL
LC86P7232
CD CTRL
+D
FUNCTION
CONTROL
LED
+5V
IR EYE
GP1U28XP
+5V
RDS DECODER
SAA6579T
UMS 11 ... UMS 12-S
OPERATION AMP.
DSC
+12V
+
DBB
HEADPHONE
AMPLIFIER
MUTE
LCD
MUTE
MCU AMP_ON
POWER_DWN
STANDBY
TIMER
+22V
POWER
DOWN
CONTROL
+12V
+8V
+5V
KEY
PANEL
-12V
3 - 1 GRUNDIG Service
Digitized in Heiloo, Holland
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
+12V
UMS 11: LA4270
UMS 12: LA4450
+
+22V
HEADPHONE
SOCKET
45dBV
18 Ω
18mW
32 Ω
TRANSFORMER
F2
F3
+12V
+8V
F4
+5V
-12V
30/7/2014
2x 4 Ω
AC
MAINS
3 - 2