Grundig M 7-C Service Anleitung Seite 27

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