Grundig RC 400 User manual

RCD 405 Allgemeiner Teil / General Section
GRUNDIG Service 1 - 1
RCD 405
*
Service
Manual
RCD 405
Sach-Nr./Part No.
72010-752.30
Service
Manual
Sicherheit
Safety
Sach-Nr./Part No.
72010-800.00
Zusätzlicherforder-
liche Unterlagen
für den
Komplettservice:
Additionally
required Service
Manuals for the
Complete Service:
SERVICE MANUAL
Änderungen vorbehalten Printed in Germany Service Manual Sach-Nr.
Subject to alteration VK 232 1296 Service Manual Part No. 72010-752.30
HIFI CD RECEIVER
RCD 405
R D S
POWER IO
POWER IO
PAUSE
PAUSE PLAY PLAY
REPEAT
REPEAT
SHUFFLE
SHUFFLE
INFO
INFO
STOP
STOP
OPEN/
CLOSE
OPEN/
CLOSE
SKIP/STATION
SKIP/STATION
SEARCH/TUNING
SEARCH/TUNING
MEMORY
MEMORY
CANCEL
CANCEL
EDIT
EDIT TAPE/AUX TAPE/AUX
CD
CD
TUNER BAND
TUNER BAND DEFEAT
DEFEAT
VOLUME
VOLUME LOUDNESS
LOUDNESS
HEADPHONES
HEADPHONES
TREBLE
TREBLE
BASS
BASS
BALANCE
BALANCE
R
R
L
L
+
+
+
+
-
-
-
-
ANT/CABLE
ANT/CABLE
MONO
MONO
59 8A EPA 3
TUNED
ANTENNA
RC 400
VOLUME
-+
TUNER STATION
TAPE
CD
SLEEP
PTY
DISC–+
RCD 405 (9.79810-8151 / G.LG 19-51)
RC 400 (75954-032.17)
Service
Manual
RCD 400
Sach-Nr./Part No.
72010-747.05
DasGerätRCD405isteineWeiterentwicklungdesGerätesRCD400.
IndiesemServiceManualsindnurdiegeändertenPlatinenabbildungen,
Schaltpläne und die Ersatzteilliste enthalten.
Für den Service benötigen Sie die Service Manuals RCD 400, RCD
405 und das Service Manual "Sicherheit".
TheunitRCD405isa modification oftheunitRCD400.InthisService
ManualonlythealteredPCBs,circuitdiagramsandthesparepartslist
are included.
For the Service the Service Manuals RCD 400, RCD 405 and the
Service Manual "Safety" are needed.

Allgemeiner Teil / General Section RCD 405
1 - 2 GRUNDIG Service
Es gelten die Vorschriften und Sicherheitshin-
weise gemäß dem Service Manual "Sicherheit",
Sach-Nummer 72010-800.00, sowie zusätzlich
dieeventuellabweichenden,landesspezifischen
Vorschriften!
The regulations and safety instructions shall be
validasprovidedbythe"Safety"ServiceManual,
part number 72010-800.00, as well as the
respective national deviations.
General Section
Test Equipment / Aids
Digital voltmeter, Sweep generator, Test generator, Stereo coder, AF
generator, Oscilloscope, AF voltmeter, Distortion meter
Please note the Grundig Catalog "Test and Measuring Equipment"
obtainable from:
GRUNDIG electronics GmbH
Würzburger Str. 150
D-90766 Fürth/Bay.
Tel. [phone]
Telefax 0911/703-4479
Allgemeiner Teil
Meßgeräte / Meßmittel
Digitalvoltmeter, Wobbler, Meßsender, Stereokoder, Tongenerator,
Oszilloskop, NF-Voltmeter, Klirrfaktormeßgerät
BeachtenSiebittedasGRUNDIGMeßtechnik-Programm,dasSieunter
folgender Adresse erhalten:
GRUNDIG electronics GmbH
Würzburger Str. 150
D-90766 Fürth/Bay.
Tel. [phone]
Telefax 0911/703-4479
Inhaltsverzeichnis
Seite
Allgemeiner Teil
Meßgeräte / Meßmittel ............................................................... 1 - 2
Technische Daten ...................................................................... 1 - 3
Bedienhinweise ............................ Service Manual RCD 400 S. 1 - 4
Ausbauhinweise ......................... Service Manual RCD 400 S. 1 - 13
Abgleichvorschriften
Tuner............................................ Service Manual RCD 400 S. 2 - 1
Platinenabbildungen und Schaltpläne
Display ........................................... Service Manual RCD 400 S. 3 - 1
IC-Block-Diagramme TDA1313T, SAA6579T ............................... 3 - 6
IC-Block-Diagramme TDA7294, LC7821 .................................... 3 - 16
Druckplattenabbildungen:
CD .......................................................................................... 3 - 1
Tuner ...................................................................................... 3 - 7
Netzteilplatte, Hauptplatte, Kopfhörerplatte, Display- und
Tastenplatten.......................................................................... 3 - 8
Klangreglerplatte, Lautstärkeplatte, Regulatorplatte ........... 3 - 10
Detailschaltpläne:
CD .......................................................................................... 3 - 2
Tuner ...................................................................................... 3 - 4
Hauptplatte, Kopfhörerplatte, Display- und Tastenplatte,
Netzteilplatte, Klangreglerplatte, Lautstärkeplatte,
Regulatorplatte ..................................................................... 3 - 11
Verdrahtungsplan........................................................................ 3 - 14
Ersatzteilliste und Explosionszeichnungen
Explosionszeichnung RCD 405 .................................................... 4 - 1
Explosionszeichnung CD-Laufwerk .............................................. 4 - 2
Ersatzteiliste.................................................................................. 4 - 3
Table of Contents
Page
General Section
Test Equipment / Aids ................................................................ 1 - 2
Specifications ............................................................................. 1 - 3
Operating Hints ............................ Service Manual RCD 400 S. 1 - 8
Disassembly Instructions ........... Service Manual RCD 400 S. 1 - 13
Adjustment Procedures
Tuner............................................ Service Manual RCD 400 S. 2 - 2
Layout of the PCBs and Circuit Diagrams
Display ........................................... Service Manual RCD 400 S. 3 - 1
IC Block Diagrams TDA1313T, SAA6579T .................................. 3 - 6
IC Block Diagrams TDA7294, LC7821 ....................................... 3 - 16
Layout of PCBs:
CD .......................................................................................... 3 - 1
Tuner ...................................................................................... 3 - 7
Mains Board, Main Board, Headphone Board, Display and
Key Boards ............................................................................. 3 - 8
Tone Control Board, Volume Board, Regulatot Board ......... 3 - 10
Circuit Diagrams:
CD .......................................................................................... 3 - 2
Tuner ...................................................................................... 3 - 4
Main Board, Headphone Board, Display and Key Board,
Mains Board, Volume Board, Regulator Board .................... 3 - 11
Wiring Diagram ........................................................................... 3 - 14
Spare Parts List and Exploded Views
Exploded View RCD 405 .............................................................. 4 - 1
Exploded View CD Drive Mechanism ........................................... 4 - 2
Spare Parts List ............................................................................ 4 - 3
D
GB

RCD 405 Allgemeiner Teil / General Section
GRUNDIG Service 1 - 3
Technische Daten
Verstärker
Ausgangsleistung (DIN45500)
Musikleistung (4Ω) ............................................................ 2 x 80W
Sinusleistung (4Ω, 0,7% Klirrfaktor, 1kHz) ....................... 2 x 50W
Eingangsempfindlichkeit / Impedanz
Line IN .................................................................... 180mV / 47kΩ
Klirrfaktor
Sinusleistung -1dB, 8Ω, 1kHz ............................................ ≤0,01%
Geräuschspannungsabstand .............................................. ≥94dB
Tuner
Empfindlichkeit
Mono (S/N = 26 dB) ............................................................ ≤1,1µV
Stereo (S/N = 46 dB) ............................................................. 35µV
Wellenbereiche
FM.................................................................. 87,50 ... 108,00MHz
MW ....................................................................... 528 ... 1605kHz
CD
Linearität Frequenzgang ±0,1dB ............................. 20 ... 20000Hz
Signal- / Rauschspannungsabstand ..................................... 96dB
Klirrfaktor THD ........................................................................ 80dB
Dynamikbereich ...................................................................... 96dB
Allgemeines
Spannungsversorgung
Betriebsspannung ................................................................ 230V~
Frequenz........................................................................... 50/60Hz
max. Leistungsaufnahme...................................................... 200W
Leistungsaufnahme in Standby ............................................ <12W
Abmessungen
B x H x T ................................................. 435 x 75 (+12) x 300mm
Gewicht ..................................................................................5,3kg
Specifications
Amplifier
Output power (DIN45500)
Music (4Ω) ........................................................................ 2 x 80W
Nominal (4Ω, 0.7% distortion, 1kHz) ................................ 2 x 50W
Input sensitivity / impedance
Line IN .................................................................... 180mV / 47kΩ
Distortion
Nominal power -1dB, 8Ω, 1kHz ......................................... ≤0.01%
Signal-to-noise ratio ............................................................. ≥94dB
Tuner
Sensitivity
Mono (S/N = 26 dB) ............................................................ ≤1.1µV
Stereo (S/N = 46 dB) ............................................................. 35µV
Wave ranges
FM.................................................................. 87.50 ... 108.00MHz
MW ....................................................................... 528 ... 1605kHz
CD
Frequency ranges ±0.1dB........................................ 20 ... 20000Hz
Signal-to-noise ratio ............................................................... 96dB
Distortion THD......................................................................... 80dB
Dynamic range ........................................................................ 96dB
General
Power supply
Voltage................................................................................. 230V~
Frequency ......................................................................... 50/60Hz
max Power consumption ...................................................... 200W
Standby power consumption ................................................ <12W
Dimensions
W x H x D................................................ 435 x 75 (+12) x 300mm
Weight....................................................................................5.3kg
Notizen / Notes

Platinenabbildungen und Schaltplänen / Layout of PCBs and Circuit Diagrams RCD 405
3 - 1 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Platinenabbildungen – CD-Teil / Layout of the PCBs – CD Part
1
+
C166
1
P1C
KR162
28
15
14 1
IC02
IC05
IC03
24
12
13
1
IC01
R163
C109
R142
C133
R103
R120
J19
R117
C114
R112
R114
C129
R129
R128
R132
R143
+
C139
+
C135
+ C120
+
C117
+
C102
+
C197
R101
R121
C163
M
C137
C134
M
C136
M
C138
M
C122
R118
C119
C162
C112
M
C116
R104
C124
C125
C127
C131
C128
C106
C108
R124
C110
C111
C105
R162
P2C
IC04
CT101
FC101
J8
+ +
C140
C130
1
IC06
J22
J7
+
C103
C118
R126
M
C141
J21
M
C164
R113
J17
M
C165
R105
R141
R127
R133
C126
M
C142
J5
C199
C113
M
C104
J1
J10
R139
M
C198
R192
J12
C196
+
C193
+
C191
R102
C107
J3
M
C192
J2
C101
M
C194
IC07
J4
R119
J18
J15
J16
J14
J6
J9
J13
R147
R115
R145
J20
R191
R111
R161
R125
R146
R116
C115
J11
SLE+
SILD
MOT-
SLE-
MOT+
+10V
CDL
GND
GND
GND
STANDBY
CDR
SIDA
SICL
RAB
HOME
16.9.96530.0283.01
1
12
23
34
44
16
1
1
1
1
1
16
16
1
1
23
34
44
+
C166
1
P1C
KR162
28 15
14
1
IC02
IC05
IC03
24
12
13
1
IC01
R163
C109
R142
C133
R103
R120
J19
R117
C114
R112
R114
C129
R129
R128
R132
R143
+
C139
+
C135
+
C120
+
C117
+
C102
+
C197
R101
R121
C163
M
C137
C134
M
C136
M
C138
M
C122
R118
C119
C162
C112
M
C116
R104
C124
C125
C127
C131
C128
C106
C108
R124
C110
C111
C105
R162
P2C
IC04
CT101
FC101
J8
+ +
C140
C130
1
IC06
J22
J7
+
C103
C118
R126
M
C141
J21
M
C164
R113
J17
M
C165
R105
R141
R127
R133
C126
M
C142
J5
C199
C113
M
C104
J1
J10
R139
M
C198
R192
J12
C196
+
C193
+
C191
R102
C107
J3
M
C192
J2
C101
M
C194
IC07
J4
R119
J18
J15
J16
J14
J6
J9
J13
R147
R115
R145
J20
R191
R111
R161
R125
R146
R116
C115
J11
SLE+
SILD
MOT-
SLE-
MOT+
+10V
CDL
GND
GND
GND
STANDBY
CDR
SIDA
SICL
RAB
HOME
16.9.96 530.0283.01
12
1
16
1
1
1
1
1
1
16
16
Ansicht von der Lötseite / View of solder side
Ansicht von der Bestückungsseite / View of component side

GRUNDIG Service 1-1
RCD 405 Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GRUNDIG Service 1-2
RCD 405 Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
3 - 2 3 - 3
Schaltbild – CD-Teil / Circuit Diagram – CD Part
+
4U7/50
C166
4.7
R101
M
0.1
C136
KR162
C133
47n
10K
R145
4
1
2
3
5
6
8
11
12
10
9
7
P1C
4.7
R163
M
0.1
C116
10P
C163
100K
R162
4.7
R139
MOTO2 MOTO1 CROUT
CRIN CL16
TIMING
RAB
CL DA
END
FRONT-
PLL
PLL
DIGITAL
DEMODULATOR
EFM
SRAM
ADDRESSER
RAM
CONTROL
MOTOR
INTERFACE
PROCESSOR
MICRO-
DOBM
REGISTER
CRC CHECK
Q-CHANNEL
Q-CHANNEL
PROCCESSOR
AUDIO
FLAGS
CORRECTOR
ERROR
IREF
ISLICE
HFREF
HFIN
FACE
INTER-
EBU
FACE
INTER-
DATA
SERIAL DATA
WCLK
SCLK
8
2
19
20
21
15441614131727323130284232233435363738394041424365
10
9
7
24
12
11
IC03
SAA7345GB
M
C165
0.1
4.7
R121
+
33U/16V
C139
22n
C101
M
0.1
C104
100
R161
12K
R133
12K
R132
4.7
R192
M
C142
0.1
+
33U/16V
C135
1K
R119
M
0.1
C138
VSSAVSSDVDD1VDD2
SL
RA
VRL
FO
LDON
R2
R1
D4
D3
D2
D1
XIN
uP INTERFACE
OUTPUT STAGE
CONTROL PART
CLCL
CL
FUNCTION
CONTROL
PREPROCESSING
A/D
GENERATOR
VREF
XR
CL DIVIDER
XTAL
OSCILLATOR
5
6
7
9
10
11
8
2
23
22
24
28 20 21 15 14 3 12
25
26
27
1
16
19
13
IC02
TDA1301T
LDON
A4A3A2A1
FILTERS
6 LP
AND
A1-A6
6 AMP
NC
+
I/IV
+
LP
AMP
uP
12
9
4
3
1
6
2
5
7
1314
16
20
23
19
24
22
21
15
18 17 8
IC01
TDA1302T
+
10u/50v
C120
+
47u/50v
C117
1n
C118
1K
R120
24K
R105
M
0.1
C137
M
0.1
C122
M
C192
0.1
12K
R115
-
-
+
+
10 14 5
2
1
6
7
9
12
13
16
IC04
TDA7073A
IC05
TDA7073A
+
330u/16v
C140
+
33U/50V
C102
47n
C134
390
R118
430
R117
1n
C119
430
R112
47n
C114
47n
C115
430
R111
1n
C112
12KR114
100K R104
22n
C105
47n
C113
220P
C125
220P
C126
220P
C129
220P
C128
220P
C127
1n
C106
10K
R129
10KR128
10K
R127
10KR126
10K
R125
10K
R124
22n
C110
220P
C124
12K
R113
C109
U1
1n
C111
47P
C108
IN
REF
OUT
IC06
1K
R102
+
33U/50V
C191
22K
R103
10KR142
M
C194
0.1
10P
C162
10KR141
R143 10K
10KR147
2n2
C107
+
33U/50V
C193
M
C198
0.1
470
R146
6
5
4
3
2
1
P2C
4.7
R191
+
22U/50V
C197
M
C141
0.1
M
C164
0.1
1n
C199
1
R116
1n
C196
VDDA VDDO VSSA VSSO VSSD
VDD
LRSEL/RSI
4/8FSSEL
SI/LSI LIN LOUT
VREF
ROUT
RIN
BCK
WS
2
15
16
3
1
14 13 5 12 6 11 7
8
4
9
10
IC07
TDA1313T
560P
C131
-
-
+
+
10 14
5
6
7
2
1
16
13
12
9
1n5
C130
+
4U7/50V
C103
MOT+
MOT-
SLEDGE+
SLEDGE-
FOC+
FOC-
HOME
RAD+
RAD-
CD+B CD+B
+5V
+10.5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
MC7805CT
7
6
5
4
3
2
1
3
2
1
CT101
10
9
8
7
6
5
4
3
2
1
FC101
SIDA
SICL
RAB
SILD
CDR
CDL
CD+B
GND
GND
STBYCD
ECO:96-0227
+4.7V
16.9344MHZ
+1V
+1V
+1V
+4.3V
+1.8V+1.3V
+2.3V
ca. 1.5V
ss
+5.3V
+4.8V
+5.1V
+5.1V
+5V
+10.5V
+10.4V
+5.1V
+4.3V
+4.8V
+5.4V +2.5V
+2.5V
+2.5V
+2.5V
+2.5V
+2.5V
+2.5V
ca. 200mV
eff
ca. 100mV
eff
ca. 7mV
eff
+3.3V
+2.5V
+2.5V
TO MAIN BOARD WT503
TO CD DRIVE MECHANISM
TO CD DRIVE MECHANISM
VOLTAGE MEASURED RELATIVE TO GND ON PLAY.
Bei den in den Schaltplänen angegebenen Meßwerten
handelt es sich um Näherungswerte!
The measured values given in the circuit diagrams are
approximates!
PAGE 3 - 11

1-3 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams RCD 405
1-4 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams RCD 405
2.5V
4V
2.5V
2.8V
4V
5V 5V2.8V6.2V4V2.8V4.7V
3.2V5.5V3.2V3.2V5.5V3.2V3.2V3.2V 3.2V
1.8V
10V
3.1V
3.8V
IFOUT
OSCOUT
4.6V
0.24V
2.5V
GND
GND
ANT
VT
+12V
+FM 12V
FM: 1.6V - 8.0V
MW: 1.1V - 8.0V max. 9V
2.3V
2.6V
FM-FRONT END
Bei den in den Schaltplänen angegebenen Meßwerten
handelt es sich um Näherungswerte!
The measured values given in the circuit diagrams are
approximates!
4R7 R76
330R
R75
330R
R77
1K2 R72
560R
R73
100K
R74
5K6 R71 1K5 R84
270K
R81
330K
R82
330K
R83
270K
R85
R88
BC328-25
T8
F4
F3
BF240
T16
K
22N C69
K
4P7 C67
K
390P
330N
C72
K
47P
C71
K
100P
C83
K
100P
C82
K
22N
C81
K
22N C85
K
47N C54
K
47N
C55
K
27P
C56 K
180P
C66 K
180P
C74
K
C7
4.7N
R134
2.2K
R132
56K
BC328-25
T13
14
13
76
12
118
910
342
1
F6
D23
F
0U33
C61
F
0U1 C57
F
1N5 C59
SHIFT REDISTER LATCH
COUNTER
UNIVERSAL
1/16, 1/17 4BIT
COUNTERSWALLOW
DIVIDER
PROGRAMMABLE
12 BIT
22
VDD
DETECTOR
PHASE
6
DIVIDER
REFERENZ
1/2
19
18
8717141312111095432
23
15
16
21
20241
1
34
678
L18
R133
33K
100K
R69
21
10
11
R
F
REF
22
1
20
F2
CSB456
Q2
39MH
L19
+
10U/50V
C79
+
0U47
C63
+
2U2/100V
C62
+
1U/63V
C68
+
1U/50V
C75
+
10U/25V
C64
+
4U7/25V
C58
+
2U2/25V
C76
+
22U/25V
C53
FM AM CHANGE
MUTING
DECODER
MUTING
VCC ON
FM AM CHANGE OVER
MUTING CONTROL
19KHZ
FF
19KHZ
FF
38KHZ
FF
SWI
ST
E
TRI
G
DR
I
LA
M
PILOT DET
VCO STOP
FF FF
CIRCUIT
REACTANCE
SYMMETRICAL
COMPARATOR
PHASE
OSCREG
VOLT
0
90
LA3401
1 2345 6 7 89
141516171819202122
T25
4.7K
R124
C
150P
C111
2SK30AY1 T7
6
1
2
3
4
L1
B1
B0
B2
B3
4.5-20P
C3
F
1N
C45
F
0U47
C39
F
0U1
C25
Q1
1N4151
D19
1N4151
D15
1N4151
D14
1N4151
D17
1N4151
D16
T5
1
34
678
F1
BF998
T4
L16
L11
L13
L14
L9
L8
L12
SVC321SP
D9
D13
D21
D18
D22
13
67
L15
BC548C
T12
T9
T11 XX
T14
100R
R67
2K7 R41
33K R31
100K
R29
100K
R33
0...100R
R36
820K...1.5M
R47
33K R38 33K R39
10K
R44
100R
R37
10K
R32
10K R54
1K...2K2
R61
330R
R66
180K...680K
R64
10K R53
100R
R59
100R
R48
470R
R56
K
22N C51
K
36P
C23
K
36P
C17
K
10N
C9
K
0U1
C8
K
15P
C19
K
0...5P
C24
K
18P C21
K
4...10P
C26
K
8P
C27
K
0U22
C22
K
0...5
C34
K
220P
C37
K
22P C41
K
5P
C36
K
22P
C16
K
2P
C38
K
1P
C43
K
0U22
C18
K
5...10P
C31
K
220P
C28
K
0U22
C29
K
47P C33
K
0...5P
C35
K
8P
C42
K
27P
C44
K
22P C47 K
2...4
C46
K
0U22
C48
K
15P
C49
2K2 R65
4K7
R62
8K2
R57
2K2 R55
470R
R49
2K2
R45
10K R58
47K
R63
100K
R35
100K
R34
10K R42
47K
R52
10K R51
100K
R28
100K
R27
100K
R26
100K
R25
10K
R24
10K
R15
6K8 R23 6K8 R22
MUTE
VT
VT
VT
VT
+MW
+MW
+12V
+12V
+12V
AM-IF
AM-IF
FM-IF
FM-IF
AM-RF
AM-RF
AM-OSZ
AM-AF
VCO-STOP
VCO-STOP
+FM
+FM
+5V
+5V
FM-OSZ
FM-OSZ
CL
CE
IF-ENA
IF-ENA
FM-MPX
ANT/CABLE
DA-OUT
DA-IN
S
DG
A
IV
III
a
VI
E
B
VII
1/3
42
DA-OUT
CL
DA-IN
CE
7
8
1
6
5
2
4
3
BC548B
IC2
LA3401
7.2MHZ
FM
AM
C
IC1
LC7217
D
3 - 4 3 - 5
Schaltbild – Tuner-Teil / Circuit Diagram – Tuner Part

RCD 405 Platinenabbildungen und Schaltplänen / Layout of PCBs and Circuit Diagrams
GRUNDIG Service 3 - 6
TO MAIN BOARD FC506 4A TO MAIN BOARD FC201
2A
2.5V 2.5V 2.5V 12V 12V 12V
1.5V1.5V3.2V
1.5V
4V
3.3V
2.5V 2.5V 2.5V 2.5V
VOLTAGE MEASURED RELATIVE TO GND ON FM.
3.4V
2.7V
2.5V
4V4V
5V
2
V
XOUT
XIN
VCC
GND GND GND GND
TO MAIN BOARD FC301 1A
220R R101
3K6
R104
1K
R113
6K2
R114
100K R107
10K
R103
10K
R106
4K7
R115
10K
R102
47K
R105
4K7 R88
4K7
R91
3K3
R86
3K3
R87
K
22N C85
K
10N C88
K
22N C92
K
22N
C96
K
22N C93
K
22N C91
K
22N C98
K
10N
C105
C
150P C103
1.8K
R118
F
0U1
C114
F
0U33 C113
76
AMP
POSTQ.D.
DET
AM-ZFMIX
RF
REF OSC BUFFER
OSC S-METER
NARROW AGC DRIVER
LED
S-METER 8
15
9
12
16171914242322
53214131820
FM - IF
BUFFER BUFFER
I F I F
LA1266
IC3
1N4151
D43
GL7812
IC5
100K
R119
100K
R123
+
10U/50V
C86
+
2U2/100V
C94
+
1U/100V
C104
+
1U/100V
C97 +
1U/100V
C95
+
220U/16V
C112
+
C75
+
2U2/25V
C76
+
4U7/50V
C77
+
4U7/50V
C78
BC548B
T23
6
891
2
124 F9
6
891
2
124 F11
DATA
CLK
FM MPX
VCC VCC
9 10 11 6 13 14
3478125
SAA6579T
IC4
2
16
MUTING
VCC ON
OUTPUT
MUTING
OVER
OL
SWITCH
STEREO
TRIGGER
DRIVER
LAMP
91011
121314
4
K1
6
3
F7
4M332
Q3
C
82P
C109
C
47P
C107
C
560P
C99 +
2.2U/100V
C108
C
100N
C102
22U
L21
2.2K
R121
1N4148
D29
10K
R116
1.8K
R118A
1.2K
R125
+12V
+12V
+12V
AM-OSZ
FIELDSTG
AM-AF
SEARCHLV
STEREO
+5V
+5V
STEREO
DATA-IN
CL
CE
RDS.CLK
RDS.DATA
FM.MPX
FM-MPX
ANT/CABLE
DATAOUT
R CH.
L CH.
J
KH
G
F
G
D
C
1
2
3
4
5
6
7
8
1
1
2
2
3
3
4
RDS DEMODULATOR
11
10
9
MUTE STEREO DA-OUT CL DA-IN CE
SAA6579T
IC4
+19V
FS
PAGE 3 - 13 PAGE 3 - 13
PAGE 3 - 11

Platinenabbildungen und Schaltplänen / Layout of PCBs and Circuit Diagrams RCD 405
3 - 7 GRUNDIG Service
Platinenabbildung – Tuner-Teil / Layout of PCB – Tuner Part
Ansicht von der Bestückungsseite / View of components
530.0269.00
R18
R7
R5
R8A R6
R12
R9
R2 R1
R14
R19
R21
R15
R16
R17
R108
R111
R112 R109
R131
R95
R96
R117
R125
R124
R122
R118A
R78
R89
R68
R11
R74
R23
R22
R99
R98
R83
R85
R82
R81
R87
R86
R97
R94
R128
R72
R76
R75
R73 R67 R77
R103
R101
R106
R115
R105
R102
R114 R107
R104
R71
R88
R93
R27
R24
R121
R28
R84
R25
R26
R35
R34
R57
R45
R55
R62
R65
R49
R58
R51
R46
R52
R63
R42
R90
R10
R132
R134
R133
R13
R116
R127
C8
C5
C32
C9
C11
C115
C96
C66
C74
C81
C69
C92
C98
C114
C103
C105
C57
C54
C59
C55
C102
C88
C25
C85
C93
C91
C6
C13
C51
C70
C1
C1A
C12
C2
D11
D3
D12
D1
D4
D5
D2
D6
D27
D41
D28
D7
D14 D17
D15 D16
D25
D24
D8
D43
D42
D29
BR144 BR130
BR138
BR129
BR133 BR132
BR128
BR134
BR117
BR118
BR150
BR112
BR124
BR113
BR120
BR104
BR121
BR105
BR106
BR108 BR107 BR109
BR101 BR100
BR114
BR115BR116
BR157
BR143
BR119
BR151
BR145
BR131
BR102
BR141
BR125
F2
CE
T2
CE
T1
CE
T3
CE
T19
CE
T23
CE
T17
CE
T15
CE
T21
CE
T22
CE
T18
CE
T16
CE
T12
CE
T7
CE
T25
CE
T24
C14
C15
C56
C111
C7
BR137
BR153
BR139
BR136
F8
F7
L17
L18
C73
C65
C67
C72
C71
C17
C106
C107
C23
C45
C83
C82
C99
C109
R69
R119 R123
C3
C4
D23
D9
D9M
+
C64
+
C58
+
C78
+
C77
+
C68
+
C86
+
C95
+
C94
+
C97
+
C104
+
C75
+
C63
+
C108
+
C79
+
C89
+
C76
+
C62
+
C53
+
C84
1
F5
1
F3
1
F4
1
F4A
L10
L21
L7
L5
L3
L6
BR126 BR127
BR147
BR148
L2
L1
R118
R126 R129
R43
Q2
BR122
BR152
Q3
Q1
BR123
BR149
BR110
BR3
BR0 BR1 BR2
BR111
BR146
BR103
D19
+
C112
+
C60
IC3
IC1
C113
C39
C61
CE
T13
CE
T6
CE
T8
R60
C10
R8
L19
BR135
BR140
L16
4A
CEB
IC5
F11
F9
IC2
4A*
3A
5A
2A
CH.2POL
F6
BR142
R113
BR154
1A
D39
R91
BR155
MODEL:R120/220 PCB:TUNER BD
530.269.00
F
S
1
1
1
1
1
11
LK
RK
FE
BR158
USR4
22
8
7
6
5
3
1
2
31
64
3
1
4
6
66
J
D
i
G
K
H
2
31
6
LR
4
3
1
4
6
VI
12
3
2
VII
III
a
F1
FM AM

GRUNDIG Service 1-1
RCD 405 Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GRUNDIG Service 1-2
RCD 405 Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
3 - 8 3 - 9
J55
85
41
IC306
C313
D209
EC
T302
+
C502
FC540
CE
T501
FC201
J61
M
C356
J23
FC506
C319
BU303
J22
J54
FC301
J24
D201
BU301
CN303
EB
T202
R357
1
IC202
85
41
IC502
J38
IC501
16 15 1
30
IC301
BU302
1
IC203
F202
T160mA
CR501
IC303
J65
L501
R376
R324
R529
R554
R208
R535
R533
R536
R532
J33
R314
R373
R364
D301
R207
R316
R368
R377
R366
R370
R378
R375
R374
R369
R528
R367
R317
J28
R541
R530
R527
R303
J27
R534
C370
R538
J62
J18
J11
R322
R556
D503
R320
R318
R542
R543
R544
R549
J16
R548
R323
R550
C307
R304
R310
R302
R551
R552
R313
C305
R305 R306
R325 R321
M
R319
R315
J79
R308
R309
J20
D211
R209
L302
R354
R352
R351
J87
R537
R379
J42
85
41
IC302
C301
C303
C351 C352
C354
C362
EC
T508
C302
J100
C304
C310C309
C353
C306
C308
C348
C314
C504
J86
J57
C320
R312
C315 C316
C215
C214
C209
C212
C211
C339 C340
C341 C342
C372C371
D210
J88
D204
D202
D206
D205
J44
D506
D508
D507
R553 D505
D208
D207
D203
D302
EC
T301
EC
T504
EC
T503
EC
T512
EC
T507
EC
T513
+
C503
+
C360
+
C359
+
C204
+
C358
+
C312
+
C311
+
C347
+
C507
+
C505
+
C318
+
C322
+
C324
+
C323
+
C317
+
C506
+
C344
+
C343
+
C338
+
C336
+
C334
+
C333
+
C337
+
C335
+
C321
J103
R353
CE
T502
CE
T511
CE
T506
CE
T510
CT201
CN502
EC
T303
J56
EC
T509
EC
T305
J17
J47
+
C213
+
C205
R204
J105
R202
J90
J72
J49
J95
CT501
CE
T515
J58
C511
J32
J13
WT502
WT501
J5
J34
J59
J2
J77
J78
J3
R347
J4
J68
R348
CT301
R206
1
IC201
R356
IC304
J66
R365
C361
+
C206
CT202
R203
C210
R547
R301
CN304
+
C207
J53
J89
EC
T201
J71
R546
R307
R355
CT302
R380
J36
R311
J99
J98
J63
R349
J76
J84
J46
J50
J104
R358
J9 FC302
RL301
R555
J43
J41
J8
J73
J21
J92
J7
R350
R361
J82
R326
J45
J67
EC
T304
J25
J26
J64 J39
R363
J81
J6
J12
J14
J60
J31 J30 J29
J91
R526
EC
T505
J10
J40
J69
R371
J80
R539
J101
R205
J94
J35
J97
J102
J96
J37
J19
+
WT503
J93
J1
F203
T630mA
J48
D509
R559
EC
T514 R558
R557
J51
R372
R560
R206A
C374
R362
L301
F204
T3.15A
C373
F205
T3.15A
CN305
J109 J110
J111
J106 J107
J108
P/N:530.0284.04
TP1
R210
R211
J74
13579111315
2 4 6 8 10 12 14
13579111315
2 4 6 8 10 12 14
RL
LR
L
R
110
1
1
10
4
4
130
31
50
5180
81
100
1
2
19
20
21
22
39
40 F1 F2
1
4
111
13
51
R511
3K3
S509
LOUDNESS
S508
TONE
D501
XX
R502
330
S520
ON/OFF
R513
1K
S514
MEMORY
RC501
R520
2K7
R504
820
R510
2K7
R509
1K8
R512
10K
R522
3K9
R516
1K2
R521
3K3
R515
910
R505
910
R517
1K2
R507
1K2
R506
1K2
R519
1K8
R501
47
1
DP501
R518
1K8
R508
1K8
R523
10K
D504
5V1
+
C501
22U
S515
EDIT
S516
INFO
S501
OPEN
S502
40 21
20 1
PLAY
S512
REPEAT
S506
SER.FWD
S505
SKIPFWD
S504
SKIPREV S503
STOP
S511
SHUFFLE
S517
TAPE
S507
SER.REV
S518
CD
S513
CANCEL
S519
TUNER
R514
820
R525
47
R503
1K
R524
47
Platinenabbildungen / Layout of PCBs: -Netzteilplatte / Mains Board -Kopfhörerplatte / Headphone Board
-Hauptplatte / Main Board -Display- und Tastenplatten / Display and Key Boards
Hauptplatte / Main Board
Ansicht von der Bestückungsseite / View of components
Display- und Tastenplatten
Display and Key Boards
Ansicht von der Lötseite
View of solder side
L201
F201
RCD261=T800mA
RCD400=T800mA
RCD405=T1.25A
BU304
R360
270
C345
1N
FC302A
R359
270
C346
1N
110
1
547
23
8
BU304
R360
270
C345
1N
FC302A
R359
270
C346
1N
110
1
874
32
5
Netzteilplatte / Mains Board
Ansicht von der Bestückungsseite
View of components
Kopfhörerplatte
Headphone Board
Ansicht von der Bestückungsseite
View of components
Kopfhörerplatte
Headphone Board
Ansicht von der Lötseite
View of solder side

1-3 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams RCD 405
1-4 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams RCD 405
3 - 10 3 - 11
Schaltbild / Circuit Diagram: -Hauptplatte / Main Board -Klangreglerplatte / Tone Control Board
-Netzteilplatte / Mains Board -Kopfhörerplatte / Headphone Board
-Lautstärkeplatte / Volume Board
Platinenabbildungen / Layout of PCBs: -Klangreglerplatte / Tone Control Board
-Lautstärkeplatte / Volume Board
-Regulatorplatte / Regulater Board
R213
R212
1
IC204 C219
+
C218
OUT
GND
IN
P/N:530.0319.00
1234567 8
M1
M2
VR301
50KA
C509
U1
FC540
12
CN305
12345678
M1 M2
VR301
50KA
C509
U1
FC540
CN305
21
VR303
CN301
R338
3K3
R330
220
R329
220
R335
4K7
R336
4K7
R340
91K
R337
3K3
R331
820
R346
3K3
R334
8K2
R343
1K8
R345
3K3
R332
820
R333
8K2
R342 560
R339
91K
C325
4N7
C329
33N
C331
U15
C327 22N
C328 22N
C332
U15
C330
33N
C326
4N7
CT303
CT304
VR302
R327
3K3
R381
2K7
R341 560
R382
2K7
R344
1K8
R328
3K3
VR304
TREBLE
BALANCE
BASS
5
1
4
3
2
1
VR303
CN301
R338
3K3
R330
220
R329
220
R335 4K7
R336 4K7
R340 91K
R337
3K3
R331 820
R346
3K3
R334
8K2
R343
1K8
R345
3K3
R332 820
R333
8K2
R342
560
R339
91K
C325
4N7
C329 33N
C331
U15
C327
22N
C328
22N
C332 U15
C330 33N
C326
4N7
CT303
CT304
TREBLE
BALANCE
BASS
R327
3K3
R381
2K7
R341
560
R382
2K7
R344
1K8
R328
3K3
VR304
1
5
4
3
2
1
Regulatorplatte / Regulator Board
Ansicht von der Bestückungsseite
View of components
Klangreglerplatte
Tone Control Board
Ansicht von der Lötseite
View of solder side
Lautstärkeplatte
Volume Board
Ansicht von der Lötseite
View of solder side
Klangreglerplatte
Tone Control Board
Ansicht von der Bestückungsseite
View of components
Lautstärkeplatte
Volume Board
Ansicht von der Bestückungsseite
View of components
+10.5V
+2.5V +2.5V +3.7V
+3.7V+2.5V
+2.5V
+11V
-11V
+5V
0V
0V
0V0V 0V0V 0V0V 0V0V 0V0V 0V0V 0V0V 0V0V 0V0V 0V0V
+12V
+5V
+5V
-
+
1
3 2
LM833
IC306
10K
R374
C
U1
C31
C
U1
C348
C
U1
C314
10K
R557
1K
R377
1K
R378
BC338
T302
BC338
T301
+
10u
C502
+
10u
C503
R528
470 R529 470
BC328
T501 BC328 T502
R526 1K5
BC338
T504
47P
C304
BC338
T503
+
4U7
C360
47P
C305
10K
R373
4 3 2 1
CN502
7 6 5 4 3 2 1
3 2 1
CN305
C
U1C504
+
4U7
C359
1K
R375
M
U1
C356
1K
R376
M
CT501
33P
+
100U
C358
4K7
R370
M
82P
C511
220P
C353
+
100U
C357
18K
R363
-
+
48
7
5 6
IC306
330P
C352
18K
R364
330P
C351
220
R372
18K
R368
18K
R367
10K
R366
10K
R365
47K
R556
220
R371
220P
C354
4K7
R369
3V9
D509
100P
C301
M
U1
C355
10K
R512
S514
MEMORY S515 EDIT S516 INFO
S501
STOP/OPEN
1K
R503
S502
PLAY
3K3
R511
2K7
R510
910
R515
S509
LOUDNESS
S512
REPEAT
100P
C302
BU302A
1K2
R516
47P
C362
1K2
R517
47P
C306
10K
R554
2K2
R302
1K8
R518
1K8
R519
2K7
R520
1K8
R509
1K8
R508
1K2
R507
1K2
R506
S506
SER.FWD
910
R505
S505
SKIPFWD
S504
SKIPREV
S503
PAUSE
22K
R530
3K3
R521
1K
R513
47K
R555
S508
TONE
FC301
1K
R560
10K
R523
220K
R559
100K
R558
S511
SHUFFLE S517 TAPE
10
9 8 7 6 5 4 3 2 1
WT503
BC558B
T515
2K2
R303
2K2
R301
47P
C361
8382
81
79
78
77
76
75
36
37
47P
C303
2K2
R306
2K2
R304
2K2
R305
P
S
BU302B
820
R504
3K9
R522
8
7
65
4321
IC502
X24C04
S507
SER.REV
S518
CD
BC548B
T514
2425 20232627282930
16
12345 8 1167 9 10
12 17
18
19
141315
2122
VDD
S
RES
DI
VEE
CECL
RCOM3R8R7
LCOM3L8L7
RCOM2
LCOM2
RCOM1
LCOM1 L6L5
R6R5R4R3R2R1
VSS
L4L3L2L1
IC301
LC7821
R128
12K
820
R514
S513
CANCEL S520 ON/OFF
CR501
6.5536MHZ
S519
TUNER
R527
1K5
TU-IN-L
TU-IN-L
CD-IN-R
CD-IN-R
CLK
CD-IN-L
CD-IN-L
TRAY-
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-12V
-12V
CDR
CDR
CDL
CDL
+5V
+5V +5V
+12V
+12V
+12V
AUX-OUT-R
CE
AUX-OUT-L
RAB
CDMUTE
VUP
VUP
VUP
SIDA
SICL
TRAY+
AUX-IN-R
TRAYIN
SILD
STBYCD
TU-IN-R
TU-IN-R
DATA
AUX-IN-L
CD+B
TO CD MAIN BOARD
MAIN BOARD
DISPLAY-KEY BOARD
EEPROM
TO TUNER BD.
TO CD MAIN BD.TO CD MECHANISM
2
1
FC540.
U1
C509
-
+
M
VR301
TO MAIN BD.
VOLUME BD. 50KA
VR301
560P
C307
1K
R311
33K
R307
10K
R309
U47
C309
VOLUME BD.
CT302 CN305
+
4U7
C311
50KA
VR301
+
4U7
C312
560P
C308
1K
R312
33K
R308
U47
C310
CT302 CN305
10K
R310
VOLUME BD.
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