M 7-C / M 17-C / M 27-C
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
M 7-C / M 17-C / M 27-C
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
GRUNDIG Service
GRUNDIG Service
3 - 1
3 - 2
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Blockschaltbild / Block Diagram
+E
+F
RC 5
IR EYE
SAA6579T
DECODER
RDS
EEPROM
+CD
+9V
24mV
HEADPHONE
F1
-CMOS
REG
-CMOS(-8V)
MUTE
+5.6V
+5.6V
SENSE
HP
HP_SENSE
TUNER
KEY MATRIX
TOP KEY MATRIX
+5.6V
CONTROL
SUPPLY
CD
F2
FTD
DBB LED
LED
SOUND
INC.
+5.6V
-33V
CD_STANDBY
TUNER CONTROL
CD CONTROL
TAPE CONTROL
AF
-CMOS
+12M
+12A
+CD
+12A
Atten
Volume2
Treble
Bass
Volume2
LOGIC CONTROL
I
2
C
SELECTOR
SOURCE
SOFAC (TEA6321T)
400mV
80mV
250mV
150mV
1kHz
-6dB track
400Hz
200nWb/m
CDC3
AUX
Atten
Atten
Atten
Atten
FRONT LEFT
REAR LEFT
INCREDIBLE SOUND
800mV
I
2
C_CLK
I
2
C_D
A
TA
250mV
MUTE
MUTE
32 Ohm
15mW
+12A
+12A
+12A
+12A
HEADPHONE
+9V
REG.
+
+
-
-
REAR RIGHT
FRONT RIGHT
HEADPHONE
SWITCH
AMPLIFIER
+F
+F
POWER
DOWN
AM 80% mod,1KHZ
FM
∆
F=47.5kHz,1kHz
HP_SENSE
80mV
-33V
+F
150
°
C
DOWN
STBY
REG
+5.6V
+12M
FAN
COOLING
CONTROL
SPEED
FAN
300mV
+Vcc
POWER AMP
+5.6V
110V
10V
120V
THERMAL
FUSE
L
N
680E
+5.6V
NTC
+12A
REG
+12M
+12A
+Vcc
-Vcc
POWER
DOWN
CCT
-30V
REG
POWER
22K
4V7
220E
220E
-28.3V
-28.3V
-30V
10M
NTC
10K
THERMAL
SENSING
RESISTOR
-Vcc
F1
F2
4.5Vac
-28.3V
-28.3V
CLIPPING
Atten
NTC
CLIPPING
TMP87CP71F
µ
P