GRUNDIG Tvr3705, R-3701SV, R-3720, R-37, r3705 Service Manual
Service Manual
TV
Entwicklungscode AA
Evolution Code AA
TVR 3705
TVR 3720
TVR 3720 GB
Entwicklungscode AB
Evolution Code AB
TVR 3701 SV
TVR 3710
TVR 3710 GB
TVR 5100
TVR 5100 GB
TVR 5500
Ergänzung
Supplement
3
Sach-Nr./Part No.
72010-524.98
8
RECORD
TIMER
Zusätzlich erforderliche
Unterlagen für den Komplettservice
Additionally required
Service Manuals for the Complete Service
Service
Manual
TVR 3710…
TVR 5100…
TVR 5500…
Sach-Nr./Part No.
72010-524.95
Ergänzung
Supplement
1
Sach-Nr./Part No.
72010-524.96
P
Service
Manual
Sicherheit
Safety
Sach-Nr./Part No.
72010-800.00
Btx * 32700 #
Sachnummer
Part Number 72010-524.98
Änderungen vorbehalten
Subject to alteration
Printed in Germany
VK24/221 0497
Allgemeiner Teil / General Section TVR 37…, TVR 51…, TVR 55…
Es gelten die Vorschriften und Sicherheitshinweise
gemäß dem Service Manual "Sicherheit", Sach-Nummer 72010-800.00, sowie zusätzlich die eventuell
abweichenden, landesspezifischen Vorschriften!
D
Inhaltsverzeichnis
Seite
Allgemeiner Teil ................................. 1-1…1-16
Geräteübersicht ........................................................................... 1-3
Codeaufkleber, Entwicklungscode............................................... 1-4
Änderungen Abgleich................................................................... 1-4
Meßgeräte / Meßmittel ............................ Service Manual TVR 1-4
Technische Daten ................................... Service Manual TVR 1-4
Bedienhinweise ....................................... Service Manual TVR 1-5
Servicehinweise ...................................... Service Manual TVR 1-9
Codeaufkleber, Entwicklungscode............................................... 1-4
Servicetestprogramm .............................. Service Manual TVR 1-12
Beschreibung ....................................... 2-1…2-8
Leistungs-Chassis (PLSP) ......................... Service Manual TVR 2-1
• Netzteil .................................................... Service Manual TVR 2-1
• Hochspannungsteil ................................. Service Manual TVR 2-2
Bildrohrplatte.............................................. Service Manual TVR 2-2
Signal-Chassis (PSSP2) ............................ Service Manual TVR 2-3
• Laufwerksteuerung / Deck-Elektronik (DE) . Service Manual TVR 2-3
• Bedieneinheit (CO) ................................. Service Manual TVR 2-4
• TV-Signalelektronik (TV)......................... Service Manual TVR 2-4
• Empfangseinheit 2 (TU2) ........................ Service Manual TVR 2-5
• IN/OUT (IO)............................................. Service Manual TVR 2-6
• Video/Chroma (VS)................................. Service Manual TVR 2-6
• Standardton (AL)..................................... Service Manual TVR 2-7
• Teletext "DOS" (TXT).............................. Service Manual TVR 2-8
Abgleich ................................................ 3-1…3-4
Abgleichlageplan..................................... Service Manual TVR 3-1
Leistungs-Chassis (PLSP) ...................... Service Manual TVR 3-3
Änderungen Abgleich................................................................... 1-4
Bildrohrplatte ........................................... Service Manual TVR 3-3
Änderungen Abgleich................................................................... 1-4
Signal-Chassis (PSSP2) ......................... Service Manual TVR 3-3
• TV-Signalelektronik (TV)...................... Service Manual TVR 3-3
• Bedieneinheit (CO) .............................. Service Manual TVR 3-3
• Laufwerksteuerung / Deck-Elektronik (DE) Service Manual TVR 3-4
• Empfangseinheit 2 (TU2) ..................... Service Manual TVR 3-4
• Video/Chroma (VS).............................. Service Manual TVR 3-4
• Standardton (AL).................................. Service Manual TVR 3-4
Platinenabbildungen
und Schaltpläne ................................. 4-1…4-72
Verdrahtungspläne....................................................................... 4-1
Blockschaltpläne .......................................................................... 4-7
Leistungs-Chassis (GSPD) ........................................................ 4-16
Netzschalterplatte ................................... Service Manual TVR 4-18
Bildrohrplatte .............................................................................. 4-27
Laufwerkplatte – Sensoreneinheit........... Service Manual TVR 4-46
Signal-Chassis (KSMD/KSPD) .................................................. 4-31
• Bedieneinheit (CO) ................................................................. 4-43
• TV-Signalelektronik (TV)......................................................... 4-49
• Empfangseinheit 2 (TU2) ........................................................ 4-52
• Teletext "DOS" (TXT)........................... Service Manual TVR 4-58
• IN/OUT (IO)............................................................................. 4-55
• Video/Chroma (VS)................................................................. 4-59
• Standardton (AL)..................................................................... 4-62
• Laufwerksteuerung / Deck-Elektronik (DE)............................. 4-63
Buchsenplatte (BUPI) ............................. Service Manual TVR 4-68
Kopfverstärkerplatte (OHA)..................... Service Manual TVR 4-69
• Kopfscheibenmotoransteuerung .......... Service Manual TVR 4-70
• Kopfverstärker...................................... Service Manual TVR 4-71
Laufwerk ............................................. 5-1…5-12
Meßgeräte / Meßmittel ............................ Service Manual TVR 5-1
Servicehinweise ...................................... Service Manual TVR 5-2
Auswechseln von Laufwerksteilen .......... Service Manual TVR 5-3
Einstellungen .......................................... Service Manual TVR 5-10
Ersatzteillisten................................... E-1…E-16
The regulations and safety instructions shall be valid
as provided by the "Safety" Service Manual, part
number 72010-800.00, as well as the respective
national deviations.
GB
Table of Contents
Page
General Section.................................. 1-1…1-16
TVR Overview .............................................................................. 1-3
Code Label, Evolution Code ........................................................ 1-4
Alteration Adjustment Procedures ............................................... 1-4
Test Equipment / Jigs ............................. Service Manual TVR 1-4
Specifications.......................................... Service Manual TVR 1-4
Operating Hints ....................................... Service Manual TVR 1-7
Service Instructions................................. Service Manual TVR 1-9
Code Label, Evolution Code ........................................................ 1-4
Service Test Programme ........................ Service Manual TVR 1-12
Description ......................................... 2-9…2-16
Power Chassis (PLSP) ........................... Service Manual TVR 2-9
• Power Supply....................................... Service Manual TVR 2-9
• High Voltage Section ........................... Service Manual TVR 2-10
Tube PCB ............................................... Service Manual TVR 2-10
Signal Chassis (PSSP2) ......................... Service Manual TVR 2-11
• Deck Control / Deck Electronic (DE).... Service Manual TVR 2-11
• Keyboard Control Unit (CO)................. Service Manual TVR 2-12
• TV Signal Electronics (TV)................... Service Manual TVR 2-12
• Frontend 2 (TU2) ................................. Service Manual TVR 2-13
• IN/OUT (IO).......................................... Service Manual TVR 2-14
• Video/Chroma (VS).............................. Service Manual TVR 2-14
• Standard Sound (AL) ........................... Service Manual TVR 2-15
• Teletext "DOS" (TXT)........................... Service Manual TVR 2-16
Adjustment Procedures....................... 3-1…3-6
Location of Adjustment Controls ............. Service Manual TVR 3-1
Power Chassis (PLSP) ........................... Service Manual TVR 3-5
Alteration Adjustment Procedures ............................................... 1-4
Tube PCB ............................................... Service Manual TVR 3-5
Alteration Adjustment Procedures ............................................... 1-4
Signal Chassis (PSSP2) ......................... Service Manual TVR 3-5
• TV Signal Electronics (TV)................... Service Manual TVR 3-5
• Keyboard Control Unit (CO)................. Service Manual TVR 3-5
• Deck Control / Deck Electronic (DE).... Service Manual TVR 3-6
• Frontend 2 (TU2) ................................. Service Manual TVR 3-6
• Video/Chroma (VS).............................. Service Manual TVR 3-6
• Standard Sound (AL) ........................... Service Manual TVR 3-6
Layout of the PCBs
and Circuit Diagrams ......................... 4-1…4-72
Wiring Diagrams .......................................................................... 4-1
Block Circuit Diagrams................................................................. 4-7
Power Chassis (GSPD) ............................................................. 4-16
Power Switch Board................................ Service Manual TVR 4-18
Tube PCB .................................................................................. 4-27
Tape Deck Sensor Panel ........................ Service Manual TVR 4-46
Signal Chassis (KSMD/KSPD)................................................... 4-31
• Keyboard Control Unit (CO).................................................... 4-43
• TV Signal Electronics (TV)...................................................... 4-49
• Frontend 2 (TU2) .................................................................... 4-52
• Teletext "DOS" (TXT)........................... Service Manual TVR 4-58
• IN/OUT (IO)............................................................................. 4-55
• Video/Chroma (VS)................................................................. 4-59
• Standard Sound (AL) .............................................................. 4-62
• Deck Control / Deck Electronic (DE)....................................... 4-63
Socket Board (BUPI)............................... Service Manual TVR 4-68
Head Amplifier Board (OHA)................... Service Manual TVR 4-69
• Headwheel Motor Control .................... Service Manual TVR 4-70
• Head Amplifier ..................................... Service Manual TVR 4-71
Drive Mechanism................................ 5-1…5-12
Test Equipment / Jigs ............................. Service Manual TVR 5-1
Service Instructions................................. Service Manual TVR 5-2
Replacement of Tape Deck Components Service Manual TVR 5-3
Adjustments ............................................ Service Manual TVR 5-10
Spare Parts Lists............................... E-1…E-16
1 - 2 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Allgemeiner Teil / General Section
Allgemeiner Teil / General Section
Geräteübersicht / TVR Overview
Supplement
Ergänzung /
S./P 4-16 Leistungs-Chassis / Power PCB (GSPD)
S./P 4-27 Bildrohrplatte / Tube PCB
S./P 4-37
S./P 4-46
S./P 4-49
S./P 4-52
S./P 4-57
S./P 4-59
S./P 4-62
S./P 4-63
S./P 4-31
S./P 4-43
S./P 4-49
Table of Modules
Bausteinübersicht
S./P 4-52
S./P 4-55
S./P 4-59
S./P 4-62
S./P 4-63
CCIR, B/G/H - PAL
CCIR, I - PAL
CCIR, B/G/L/L' - SECAM
NTSC-Wiedergabe / NTSC Playback
2 Empfangseinheiten / Frontend (Tuner)
Bildschirmdiagonale 37cm (sichtbares Bild: 34cm) / Screen diagonale 37cm (visible picture: 34cm)
Bildschirmdiagonale 51cm (sichtbares Bild: 48cm) / Screen diagonale 51cm (visible picture: 48cm)
Bildschirmdiagonale 55cm (sichtbares Bild: 51cm) / Screen diagonale 55cm (visible picture: 51cm)
Ablenkwinkel 900 / Deflection angle 90
High Speed Drive (HSD)
2-Kopf/Head
Normalplay
Longplay
VISS
ATS euro plus
"On Screen Display" (OSD)
Table of Features
Feature-Übersicht
VPS
PDC
Teletext "DOS"
SHOW VIEW
VIDEO Plus
6 Timer
69 Programme + 1 AV
Kopfhörerbuchse / Headphone Jack
EURO-AV-Buchse / Socket
LINE/CV-Buchsen / Sockets
1) nur für Version / only for version G.CD 4352
GRUNDIG Service 1 - 3
72010-524.95
Sach-Nr./Part No.
Service Manual
S./P 4-18 Netzschalterplatte / Power Switch Board
S./P 4-46 Laufwerkplatte-Sensoreneinheit / Tape Deck Sensor Panel
Signal-Chassis (KSPD)
• Bedieneinheit / Keyboard Control Unit (CO)
• TV-Signalelektronik / TV Signal Electronics (TV)
• Empfangseinheit 2 / Frontend 2 (TU2)
S./P 4-58
S./P 4-58
S./P 4-68 Buchsenplatte / Socket Board (BUPI)
S./P 4-69 Kopfverstärker / Head Amplifier (OHA)
• Teletext(TXT)
• IN/OUT (IO)
• Video/Chroma (VS)
• Standardton / Standard Sound (AL)• Laufwerksteuerung /
Deck Control/Deck Electronic (DE)
Signal-Chassis (KSMD)
• Bedieneinheit / Keyboard Control Unit (CO)
• TV-Signalelektronik / TV Signal Electronics (TV)
• Empfangseinheit 2 / Frontend 2 (TU2)
• Teletext(TXT)
• IN/OUT (IO)
• Video/Chroma (VS)
• Standardton / Standard Sound (AL)
• Laufwerksteuerung / Deck Control/Deck Electronic (DE)
0
TVR 3701 SV
TVR 3705
TVR 3710
TVR 3710 GB
TVR 3720
TVR 3720 GB
TVR 5100
TVR 5100 GB
TVR 5500
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Allgemeiner Teil / General Section TVR 37…, TVR 51…, TVR 55…
Entwicklungscode / Produktionscode
Technische Weiterentwicklungen oder Änderungen sind wie folgt auf
dem Typenschild ersichtlich:
• Produktionscode – geringfügige Änderungen
• Entwicklungscode – gravierende Änderungen
Bestellnummer / Order number
Produktionsdatum / Production date
Produktionscode / Production code
Entwicklungscode / Evolution code
Evolution Code / Production Code
Technical advance developments or changes are to be seen from the
type plate as follows:
• Production code – minor changes
• Evolution code – important changes
Gerätetyp / Type of product
Fernbedienung / Remote Control
Seriennummer / Serial number
Geräte-Optionscode / Option Code
Änderungen Abgleich
zu Punkt 1. Leistungs-Chassis (GSPD)
Abgleichvorgang
Spannung mit R3358 (Ubat) entsprechend dem Gerät einstellen. TVR37… 101,5V
TVR51… 120,3V
TVR55… 84,0V
zu Punkt 2. Bildrohrplatte
Vorbereitung
Folgende Einstellungen im betriebswarmen Gerätezustand
(ca. 15 Minuten nach dem Einschalten) durchführen:
– Kontrast "84% = OSD-Skala-Maximum minus 4 Teilstriche"
– Helligkeit "50%"
– Schirmgitterregler (SCREEN) "Linksanschlag"
– R3919 und R3921 "Mittelstellung"
– Schwarztestbild an der AV-Buchse einspeisen
– Entsprechend dem Gerät jeweils folgende Werte mit den
Cutoff-Reglern R3920, R3918 und R3917 an den R-, Gund B-Eingängen der Bildröhre einstellen:
TVR 37…: 115V
TVR 51… / TVR 55…: 140V
Alteration Adjustment Procedures
to point 1. Power Chassis (GSPD)
Alignment Procedure
With R3358 (Ubat) set the following voltage according to the
different models. TVR37… 101,5V
to point 2. Tube PCB
Allow the set to warm up (for approx. 15 minutes after
switching on) and carry out the following adjustments:
– Contrast "84% = maximum minus 4 divisions on OSD scale"
– Brightness "50%"
– Screen grid adjustment control (SCREEN) "left stop"
– R3919, R3921 "center position"
–
Feed a black test pattern into the AV socket
– With the cutoff controls R3920, R3918 and R3917, set the
following levels at the R, G, and B inputs of the picture
tube dependent on the TVR model:
TVR 37…: 115V
TVR 51… / TVR 55…: 140V
TVR51… 120,3V
TVR55… 84,0V
Preparation
1 - 4 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Reference
AL ..............P 4-62
CO .............P 4-43
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
T
ube PCB
...P 4-27
TV..............P4-49
VS..............P 4-59
Platinenabbildungen und Schaltpläne / Layout of the PCBs and Circuit Diagrams
Verdrahtungsplan / Wiring Diagram TVR 37…
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
OPTION ( OTHER CONNECTION TERMINAL )
TOP
VDEFH (Yellow)
HDEF2 (Blue) HDEF1 (Red)
4
2
TOP
HDEF2 VDEFHVDEFL HDEF1
(Blue)
(Green) (Red)
123
DEFLECTION COIL
Rear View
4
3
1
(Yellow)
56
VDEFL (Green)
PICTURETUBE
E.H.T
SPEAKER
1931
EARPHONE-JACK
1935
PH3
PH2
PH1
1
2
3
*GSPD14
(PLSP14)
BUPI ( OPTION )
Front Cinch Board
Component side
# 2554.
# 2552.
1933
VIDEO-AUDIO-JACK
Cinch
1937
GND
GND
VCI
ACIM
4
1
3
2
# 2557.
1916
EARPHONE-JACK
1913
5
B
GNDTV
4
RFK 1
R
3
2
8V
1
G
1911
VDR
5
VFB
4
RFK 5
GNDTV
3
HDR
2
HFB
1
1912
8VSW7
6
PROT
RFK 5
5
BCI
4
VCOMP
3
GND9A
2
9A
1
-7V
1971
RFK 5
3
PH1
2
PH2
1
PH3
1914
RFK 5
LS2
3
2
N.C.
1
LS1
Tuner 1
THREADING MOTOR
TMO2
N.C.
TMO1
3
1
2
1-1
1-1
TAS
15
INIT
LED
141312
WTR
RECP
FTA
10
11
1901
7
6
CTL1
CTL2
L4
WTL
987
AEH1
SCART
TURBO/ECO-WD
AUDIO-CONTROL-HEAD
GND
APH
AEH2
AEH1
CTL2
CTL1
ARH
L3
7
5
6
4
1
3
2
5
1915
5STBY
TAE
3
4
APH
AEH2
# 2488.
# 2487.
GNDD
14/9
CREV
4
6
5
L2
1
2
ARH
GND
CAPFGGNDM1
1
3
2
# 2549.
N.C.
MEH1
MEH2
1900
1
RFK 5
2
3
15
14
13
12
11
10
9
8
7
6
1905
5
4
3
2
1
3103 107 20292
REEL5DGNDM2
1
2
# 2443.
TAS
INIT
LED
WTR
FTA
RECP
WTL
5STBY
TAE
GNDD
14/9
CREV
CAP
FG
GNDM1
GNDD
14M2
PG/FG
5
6
4
3
HEAD AMPLIFIER
1904 1903
5
6
4
1
3
2
5D
14M2
REEL
GNDD
PG/FG
GNDM2
GND5A5AGND5D
33A
STBY
5STBY
1
234
#2555.
1919
FRONT-CINCH-JACK
*KSPD2 / KSMD
(PSSP2)
Signal-Chassis PAL
Component side
VCI
GND
GND
ACIM
1902
10
9
8
7
6
5
4
3
2
1
1918
1
2
3
4
GNDA
FMPV
5VAS
CSYNC
ENVC
TRIV
HSC
HP1
FMRV
GNDA
RFK 5
ERASE-HEAD
MEH1
2
MEH2
1
L8
SCANNER
GNDA
FMPV
5VAS
CSYNC
ENVC
TRIV
HSC
HP1
FMRV
GNDA
L6L1
5
9
6104
1
8
7
3
2
# 2489.
# 2485.
3
1
2
N.C.
TMO2
TMO1
# 2515.
14M1
14M2
14M2
GNDM
GNDM
14/9M1
5D
758
9
6
1909
11
12
13
10
Tuner 2
only for 2 TUNER CONCEPT
186
Vg2
Vg1
FOCUS
CRT CONNECTION SOCKET
1963
SCREEN
7
RED
1961
*GSPD14
(PLSP14)
Picturetube-PCB
Component side
E.H.T
FOCUS
SCREEN
9
GREEN
10
BLUE
543
GNDA
HEATER
1964
GNDTV
AQUADAC
GNDTV
VRGB
GNDA
HEATER
AQUADAC
AQUADAC
B
R
8V
G
GROUND LEAD ( OPTION )
1962
1967
1969
1
2
3
4
5
1
2
3
4
# 2596.
RFK 1
BTB
# 2567.
Antenna Input
*GSPD14
(PLSP14)
POWER - PCB
Component side
LINE OUTPUT TRANSFORMER
VDEFL
VDEFH
HDEF2
110LOT
HDEF1
1925
6
5
UBAT
4
3
2
1
1926
HEATER
GNDA
VRGB
1
2
3
BTB
# 2559.
*#2629. (# 2556.)
# 2493.
1923
9A
-7V
6
7
RFK 5
AQUADAC
4
VCOMP
GND9A
4
5
RFK 5
BCI
3
PROT
1
2
1922
HDR
HFB
4
5
8VSW
GNDTV
3
VFB
2
VDR
1
# 2561.
RFK 1
STBY
5STBY
12
13
# 2517.
2
1
DEGC2
DEGC1
1924
1921
GND5A5AGND5D5DGNDM
33A
9
8
11
10
RFK 5
14M2
GNDM
6
7
5
4
MAINS SWITCH
1929
14/9M1
14M1
14M2
1
2
3
plugged on PCB
FASTON CONNECTOR
MACH
MACC
1001
2
1
LINE POWER CORD
# 2581.
GRUNDIG Service 4 - 1
GRUNDIG Service 4 - 2
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR37…, TVR 51…, TVR 55…
Reference
AL ..............P 4-62
CO .............P 4-43
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
T
ube PCB
...P 4-27
TV..............P4-49
VS..............P 4-59
Verdrahtungsplan / Wiring Diagram TVR 51…
CRT CONNECTION TERMINAL
1931
EARPHONE-JACK
*GSPD20
(PLSP20)
BUPI ( OPTION )
Front Jack Board
Component side
# 2557.
1916
EARPHONE-JACK
1913
5
B
GNDTV
4
RFK 1
R
3
2
8V
1
G
1911
VDR
5
VFB
4
RFK 5
GNDTV
3
HDR
2
HFB
1
1912
8VSW
7
6
PROT
BCI
5
RFK 5
4
VCOMP
GND9A
3
9A
2
1
-7V
1971
RFK 5
3
PH1
PH2
2
1
PH3
1914
RFK 5
LS2
3
N.C.
2
1
LS1
Tuner 1
THREADING MOTOR
TMO1
N.C.
TMO2
3
2
1
1-1
1-1
TAS
15
INIT
LED
WTR
121314
RECP
FTA
10
11
1901
7
6
CTL1
CTL2
L4
WTL
5
AEH1
SCART
TURBO/ECO-WD
AUDIO-CONTROL-HEAD
CTL1
CTL2
AEH1
AEH2
APH
GND
ARH
L3
7
5
1
4
6
2
3
5STBY
4
AEH2
1915
# 2487.
14/9
GNDD
TAE
789
5
6
3
1
2
ARH
APH
GND
# 2488.
CAP
CREV
4
3
L2
# 2549.
N.C.
MEH1
MEH2
FG
2
GNDM1
1
1
2
3
1900
RFK 5
15
14
13
12
11
10
9
8
7
6
1905
5
4
3
2
1
3103 107 20292
5D
REEL
1
2
TAS
INIT
LED
WTR
FTA
RECP
WTL
5STBY
TAE
GNDD
14/9
CREV
CAP
FG
GNDM1
PG/FG
14M2
GNDD
GNDM2
L1 L6
5
4
6
3
HEAD AMPLIFIER
# 2443.
5
1
4
6
2
3
5D
14M2
REEL
GNDD
PG/FG
GNDM2
33A
5A
GND5A
5STBY
STBY
1
432
5D
GND5D
6
3
2
N.C.
TMO2
GNDM
GNDM
9
857
19031904
1
TMO1
14M2
10
14M2
11
14M1
12
14/9M1
13
ERASE-HEAD
SCANNER
CSYNC
5VAS
FMPV
GNDA
1
4106
2
3
# 2485.
# 2515.
1909
ENVC
5
TRIV
HSC
7
HP1
8
L8
FMRV
9
*KSPD2 / KSMD
(PSSP2)
Signal-Chassis PAL
Component side
MEH1
2
MEH2
1
# 2489.
Tuner 2
1902
10
9
8
7
6
5
4
3
2
1
GNDVS
FMPV
5VAS
CSYNC
ENVC
TRIV
HSC
HP1
FMRV
GNDVS
GNDA
only for 2 TUNER CONCEPT
VDEFH (Yellow)
E.H.T
TOP
43
2
DEFLECTION COIL
Rear View
1
VDEFL (Green)
HDEF1 (Red)HDEF2 (Blue)
PICTURETUBE
SPEAKER
1935
PH3
3
PH2
2
PH1
1
# 2554.
# 2552.
571
Vg1
Vg2
FOCUS
CRT CONNECTION SOCKET
*GSPD20
1963
SCREEN
Picturetube-PCB
8
RED
1966 (1965)
(PLSP20)
Component side
E.H.T
FOCUS
SCREEN
6
GREEN
11
BLUE
10
HEATER
1964
GNDTV
9
GNDA
12
AQUADAC
GNDTV
VRGB
GNDA
HEATER
AQUADAC
1962
AQUADAC
B
R
8V
G
GROUND LEAD ( OPTION )
1967
1
2
3
4
5
1969
1
2
3
4
# 2564.
RFK 1
BTB
# 2567.
Antenna Input
*GSPD20
(PLSP20)
POWER - PCB
Component side
LINE OUTPUT TRANSFORMER
# 2563.
1925
VDEFL
6
VDEFH
5
UBAT
4
HDEF2
3
2
110LOT
HDEF1
1926
VRGB
1
BTB
GNDA
HEATER
3
2
1
-7V
RFK 5
AQUADAC
4
7
1923
9A
6
# 2559.
*# 2629. (# 2556.)
GND9A
VCOMP
5
4
BCI
PROT
8VSW
1
2
3
1922
HFB
5
RFK 5
# 2589.
HDR
4
GNDTV
VFB
2
3
VDR
1
# 2561.
5STBY
STBY
13
12
33A
GND5A
11
10
RFK 5
1921
GND5D
5A
8
9
5D
7
RFK 1
GNDM
GNDM
6
5
14M2
4
2
1
1924
DEGC1
DEGC2
1015
1013
1929
14M2
14M1
14/9M1
1
2
3
plugged on PCB
FASTON CONNECTOR
*GSPD20
(PLSP20)
Mainsswitch-PCB
Component side
# 2568.
MAINS SWITCH
1002
MACH
2
MACC
1
RFK 1
LINE POWER CORD
# 2586.
4 - 3 GRUNDIG Service 4 - 4 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Reference
AL ..............P 4-62
CO .............P 4-43
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
T
ube PCB
...P 4-27
TV..............P4-49
VS..............P 4-59
Verdrahtungsplan / Wiring Diagram TVR 55…
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
# 2553.
# 2555.
CRT CONNECTION TERMINAL
TOP
VDEFL HDEF2 HDEF1 VDEFH
(Green) (Blue) (Red) (Yellow)
123456
DEFLECTION COIL
Rear View
E.H.T
SPEAKER 1
PICTURETUBE
1931
EARPHONE-JACK
1935
PH3
PH2
PH1
1
3
2
# 2554.
# 2552.
*GSPD21
(PLSP21)
BUPI ( OPTION )
Front Cinch Board
Component side
1933
VIDEO-AUDIO-JACK
Cinch
1937
GND
ACIM
VCI
GND
1
4
2
3
# 2557.
1916
EARPHONE-JACK
1913
5
B
4
GNDTV
RFK 1
R
3
2
8V
1
G
1911
VDR
5
VFB
4
RFK 5
GNDTV
3
HDR
2
HFB
1
1912
8VSW
7
6
PROT
BCI
5
RFK 5
4
VCOMP
GND9A
3
9A
2
1
-7V
1971
RFK 5
3
PH1
2
PH2
1
PH3
1970
RFK 5
3
LS2
2
N.C.
LS1
1
1914
RFK 5
LS2
3
N.C.
2
1
LS1
Tuner 1
THREADING MOTOR
TMO2
N.C.
TMO1
3
1
2
1-1
1-1
TAS
15
INIT
LED
141312
WTR
RECP
FTA
10
11
1901
7
6
CTL1
CTL2
L4
WTL
987
5
SCART
TURBO/ECO-WD
AUDIO-CONTROL-HEAD
GND
APH
AEH2
AEH1
CTL2
CTL1
ARH
L3
7
5
6
4
1
3
2
5STBY
4
AEH1
AEH2
1915
# 2487.
TAE
GNDD
14/9
6
5
3
1
2
APH
ARH
GND
# 2488.
CREV
CAPFGGNDM1
4
3
2
L2
# 2549.
N.C.
MEH1
MEH2
1
1900
1
RFK 5
2
3
15
14
13
12
11
10
9
8
7
6
1905
5
4
3
2
1
3103 107 20292
REEL5DGNDM2
1
2
TAS
INIT
LED
WTR
FTA
RECP
WTL
5STBY
TAE
GNDD
14/9
CREV
CAP
FG
GNDM1
GNDD
14M2
PG/FG
5
6
4
3
HEAD AMPLIFIER
# 2443.
1904 1903
5
6
4
1
3
2
5D
REEL
14M2
GNDD
PG/FG
GNDM2
33A
STBY
5STBY
234
1
GND5A5AGND5D
1919
FRONT-CINCH-JACK
*KSPD2 / KSMD
(PSSP2)
Signal-Chassis PAL
Component side
ERASE-HEAD
2
1
L8
MEH1
MEH2
VCI
GND
GND
ACIM
1918
1
2
3
RFK 5
4
SCANNER
1902
GNDA
FMPV
5VAS
CSYNC
ENVC
TRIV
HSC
HP1
FMRV
3
TMO2
2
N.C.
1
TMO1
1
3
2
# 2485.
GNDA
L6L1
5
9
6104
8
7
# 2489.
GNDVS
10
FMPV
9
5VAS
8
CSYNC
7
ENVC
6
TRIV
5
HSC
4
HP1
3
FMRV
2
GNDVS
1
# 2515.
14M1
14M2
14M2
GNDM
GNDM
14/9M1
5D
6
758
9
1909
11
12
13
10
Tuner 2
only for 2 TUNER CONCEPT
SPEAKER 2
175
Vg2
Vg1
FOCUS
CRT CONNECTION SOCKET
*GSPD21
1963
SCREEN
Picturetube-PCB
8
RED
1965
(PLSP21)
Component side
E.H.T
FOCUS
SCREEN
6
GREEN
9
12
10
11
BLUE
HEATER
1964
GNDTV
GNDA
AQUADAC
GNDTV
VRGB
GNDA
HEATER
AQUADAC
AQUADAC
B
R
8V
G
GROUND LEAD ( OPTION )
1962
1967
1969
1
2
3
4
5
1
2
3
4
# 2564.
RFK 1BTB
# 2567.
Antenna Input
*GSPD21
(PLSP21)
POWER - PCB
Component side
LINE OUTPUT TRANSFORMER
1925
VDEFL
6
VDEFH
5
UBAT
4
HDEF2
3
2
110LOT
HDEF1
1
1926
RFK 5
AQUADAC
HEATER
GNDA
VRGB
1
4
2
3
BTB
# 2559.
*#2629. (# 2556.)
# 2563.
1923
GND9A
9A
-7V
6
7
VCOMP
4
5
RFK 5
PROT
BCI
8VSW
1
3
2
1922
HFB
5
# 2589.
HDR
4
VFB
GNDTV
3
2
VDR
1
# 2561.
5STBY
13
STBY
12
RFK 5
1921
GND5A5AGND5D5DGNDM
33A
7
9
8
11
10
RFK 1
1015
1013
14M1
14M2
14M2
GNDM
6
2
5
3
4
FASTON CONNECTOR
2
1
1924
DEGC2
DEGC1
1929
14/9M1
1
plugged on PCB
*GSPD21
(PLSP21)
Mainsswitch-PCB
Component side
# 2568.
MAINS SWITCH
1002
MACH
2
MACC
1
RFK 1
LINE POWER CORD
# 2586.
GRUNDIG Service 4 - 5
GRUNDIG Service 4 - 6
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55…
Blockschaltplan / Block Circuit Diagram (TV)
4 - 7 GRUNDIG Service 4 - 8 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
()
Reference
AL ..............P 4-62
CO .............P 4-43
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
/
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
T
ube PCB
...P 4-27
TV..............P4-49
VS..............P 4-59
GRUNDIG Service 4 - 9
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55…
Blockschaltplan / Block Circuit Diagram (Video-Analog)
- Signal-Chassis
Signal-Chassis
4 - 10 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Reference
AL ..............P 4-62
CO .............P 4-43
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
T
ube PCB
...P 4-27
TV..............P4-49
VS..............P 4-59
Signal-Chassis
Signal-Chassis
63
61
60
71
Signal-Chassis
7601
GRUNDIG Service 4 - 11 GRUNDIG Service 4 - 12
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55…
Blockschaltplan / Block Circuit Diagram (Digital)
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55…
Signal-Chassis
Signal-Chassis
4 - 13 GRUNDIG Service
4 - 14 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Reference
AL ..............P 4-62
CO .............P 4-43
LB 1897
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
T
ube PCB
...P 4-27
TV..............P4-49
VS..............P 4-59
GRUNDIG Service 4 - 15
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55…
7
4
3
3
Leistungs-Chassis / Power Chassis TVR 37… (GSPD)
1000 C 3
1001 D 2
1300 C 7
1311 D 5
1371 G13
A
B
C
D
E
1921 B15
1922 O20
1923 L33
1924 B 9
1925 B19
1301
1926 J33
2305 D11
2308 G 7
2309 H 7
2312 C12
1001
2
1
2314 C10
2316 D 7
2317 E 9
2320 K 5
2323 K 2
IN
2324 J 2
2325 I 2
2327 H 2
2328 H10
2329 H 2
3300
4M7
1000
1
23
451 6789101123
2330 H 8
2331 E10
2332 F10
2335 K10
2336 J10
2337 L 9
2338 L 9
2341 K 4
2351 J14
2352 L15
2353 J18
2363 E14
2371 F13
2373 G15
2374 H14
2375 L14
2377 H13
2378 K14
2379 J14
2381 G13
2392 I14
2512 J27
2513 L22
2514 L20
2515 M19
2516 L24
2517 M20
2519 O25
2520 M26
2551 K30
2552 F22
2553 L30
2555 M28
2574 D25
2575 F26
2581 H21
2582 M32
2583 H22
2586 F25
2589 C27
2592 I33
2593 C26
2594 F21
3300 C 3
3304 C 6
3310 B 8
3312 C11
3313 C12
3322 K 3
3324 K 2
3327 I 2
3328 I 2
3330 G
3331 F 9
3333 G
3310
2
3
3304
270E
4
OUT
1311
T4AH
1300
2316
220n
5313
CU15D
1
3337
2E
290V
2317
1924
1
Degaussing Coil
2
2312
1n
3312
3M9
1n
2314
1N4006GP
1N4006GP
3345
24k
47u
6314
6313
2331
6315
1N4006GP
6316
1N4006GP
2305
1n
10n
5331
7
3
F
9303
18V
Vc
OUTPUT
GND
3333
2
3
4
6
68E
13,5V
3V
2308
1n
6348
3338
39E
2309
4n7
BAT85
2330
4n7
UVLO1
BUFFER
Vovp out
Vref
OVERVOLTAGE
MANAGEMENT
OVERVOLTAGE
PROTECTION
UVLO1
Vref
Soft Start & Dmax
11
2u2
2320
9309
14,5V
Vcc
Vcc
G
10k
2323
4n7
2324
2329
330p
2327
470p
3328
33k
3327
6k8
2325
560p
3324
100k
2,5V
1n
3342
0,3V
2,6V
2,6V
0,5V
2,5V
8
9
10
15
12
14
13
DEMAGNETICATION
Vdem in
Vdem out
Iref
Sync
C
T
R standby
F
R standby
P
2.5V
VOLTAGE
FEEDBACK
E/A OUT
FOLDBACK INPUT
3322
52
H
I
J
K
3330
10k
MANAGEMENT
Vosc prot
Vosc
OSCILLATOR
STANDBY
(REDUCED FREQUENCY)
ERROR
AMP
FOLDBACK
CURRENT SENSE INPUT
5
1,3V
18k
3348
180k
Rref
Iref
7310
2,5V
MC44603P
16 1
Vref
Iref
Vref
enable
INITIALIZATION BLOCK
Set
Latch
Reset
THERMAL
SHUTDOWN
CURRENT
SENSE
Dmax & SOFT-START
Iref
0,1V
330E
9308
SUPPLY &
Q
CONTROL
2,4V
REFERENCE
BLOCK
2n2
2341
7
3359
L
3356
11k
2,7V
2337
7330
3339
3334
BAV21
6335
100n
3331
51
1k
0E47
2338
270k
315V
STP4NA60FI
0,1V
6336
3347
100E
4n7
680p
2328
BYD33D
2336
220p
6334
BAV21
2335
5350
100u
6332
80E
BYD33J
50
3341
5E6
2332
5354
80E
6
470p
5
1
2
8
4
3
M
N
O
HOT CIRCUIT , BE CAREFUL AND USE AN
ISOLATION TRANSFORMER WHEN SERVICING
DO NOT OPERATE WITHOUT CASE
CAUTION : LETHAL POTENTIALS AT PRIMARY
BECAUSE A HOT GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION
TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE
COLD GND
HOT GND
Ubat
3357
3358
3362
20k
5k9
3363
4k7
20k
THE INPUT VOLTAGE SLOWLY, WHEN TROUBLESHOOTING THIS TYPE OF POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
P
451 6789101123
HOT PART
4 - 16 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
3327 I 2
3328 I 2
3330 G 4
3331 F 9
3333 G 7
312
M9
31
2312
1n
3313
3M9
3334 I 9
3337 C 8
3338 H 7
3339 H 9
3341 J10
5365
80E
12
15
13
14
15
16
15
11
10
9
1371
T2,5A
3342 G 2
3343 M16
3345 E 9
3347 K 9
3348 K 3
5363
80E
9302
2377
3350 L18
3351 K16
3352 K17
3353 K18
3354 J18
3391
5k6
6361
BYW36
6371
BYV27-100
2371
470p
6372
BYV27-100
2381
470p
1n5
BYD33D
2392
6351
BYW98-200
2351
470p
33u
10u
5361
6392
3393
4k7
BYD33D
3375
5370
390E
6374
2378
80E
3360
1n
180E
2375
3356 L 8
3357 M 8
3358 M 8
3359 K 4
3360 I14
TL431CLP
47u
2363
2374
390E
470u
2379
2352
1n
7331
220u
3364
2373
6393
220u
3362 N 8
3363 M 8
3364 I15
3375 L14
3391 D14
3393 D14
3394 D16
3395 E16
3513 L22
3517 M24
to Signal-Chassis (TV) 1909
14M2
14/9M1
14M1
1921
1
2
3
4
32V
K
A
220u
9304
GNDAU
2,5V
R
5371
22u
5373
BZX85-C6V8
5374
22u
22u
6343
3394
3395
8,5V
3343
100k
8k2
5372
5364
80E
5V-REG
BZX79-C9V1
10k
14M2
5
33V-REG
22u
7350
LM317T
4,1V
3518 M26
3519 N27
3521 O27
3522 O26
3523 P26
GNDM
GNDM
6
5V-SWITCH
BZX79-C15
MTP3055E
1
2k7
3351
7352
7
5352
32
5,4V
5D
8
22u
3352
3524 L28
3525 P25
3529 M27
3530 L20
3531 J28
GND5D
5A
9
80E
5351
5353
5,4V
6352
820E
BC547B
5V-STBY
22u
7351
GND5A
10
3353
3532 G31
3536 L19
3537 G31
3538 I28
3551 J29
33A
111213
STBY
15V
100n
2353
1k
15V
3350
STBY
33A
14H
14H
3354
220k
STBY
-7V
9A
81mV
27k
33
5D1
45
3553 N29
3554 M29
3555 L30
3556 O27
3558 N30
5Stby
3559 P24
3577 F20
3578 K26
3579 M25
3580 G19
HORIZONTAL VERTICAL DEFLECTION
HDEF2
HDEF1
Ubatlot
Ubat
1925
1
2
3
4
4k7
3580
Thermal
2515
2,3V
43
Protection
Driver
GND
1
2514
330p
3536
4k7
2n2
1
1922
14H
to Signal-Chassis (TV) 1911
3581 L31
3582 K32
3584 L32
3585 G22
3586 G23
VDEFL
VDEFH
5
6
VDEFL
VDEFH
4,9V
1,5V
6583
47
TDA3653C/N2
Output
Stage
Protection
23
3530
3k3
2517
9517
3
4
2
HDR
VFB
VDR
GNDTV
3588 H21
3590 C28
3591 B28
3592 I31
3595 H26
8
8V
3577
7587
BC547B
0,95V
2581
Output Stage
45678
680E
BAV21
0,47V
330p
3588
100n
2594
H-DRIVE AMP
150E
Guard
Circuit
3596 E22
3597 F25
3598 E22
3599 H24
5313 D 8
Ubat
82,7V
3596
2552
18V
7584
MPSA43
7510
VER. STAGE
6513
BAV21
2513
100u
5331 D11
5350 G10
5351 C17
5352 G17
5353 G17
9510
10k
3598
100n
5580
3585
Voltage Stab.
&
Current Source
Flyback
Generator
3513
1k2
2583
10k
3k9
470p
28V8V30mV28V0V 15V2,3V0V
48
2n2
46
34
5
HFB/SC
CU10
9
49
49
5354 G11
5361 D14
5363 E13
5364 I16
5365 E12
9523
7583
BUT12AF
3586
5370 F14
5371 F16
5372 F16
5373 G15
5374 J16
9522
86V
39E
LINE OUTPUT
TRANSISTOR
VDEFH
9514
5550 B29
5556 M32
5580 F22
5590 C27
6313 D10
1,1V
3599
2516
100n
3517
470E
2E7
3559
2574
BC547B
1k
2519
560n
2586
5,2V
7585
1000u
6314 D10
6315 D11
6316 D11
6332 F10
6334 J10
1n2
3597
330k
5D1
VDEFL
4E7
3525
9527
1,1V
3579
6335 L 9
6336 I10
6343 M16
6348 I 7
6351 J14
2575
HFB-DRIVER
15k
3595
28,3V
3578
7578
BC557B
14,7V
1k2
22E
3522
3523
100E
24,3V
2520
100u
8n2
270E
v-amp
6352 I17
6361 E14
6371 F13
6372 G13
6374 K14
2593
6571
BYT54
2512
1k2
3518
47u
23,6V
470u
3519
3521
BYD33D
6511
v-shift
5k1
10k
6392 H14
6393 I15
6511 I27
6513 L22
6550 L31
5590
47u
2589
10n
53
4k7
3529
390E
3556
3531
9515
3590
39E
2E7
10k
6551 K31
6552 K31
6553 K28
6554 L28
6556 L28
3524
3538
2E7
3591
4E7
6553
6556
6554
2555
6568 L32
6571 F26
6581 L32
6583 G20
6584 K32
BAV21
BAV21
BZX79-C24
3554
2k2
100n
2
1
6
5
4
6592 I32
7310 G 5
7330 G 9
7331 D15
7350 J16
5550
3551
39k
3553
2551
68k
7351 K18
7352 J17
7510 I22
7550 M30
7578 L26
33n
2553
0V
3558
7583 F23
7584 G21
7585 H25
7587 G21
9302 G13
Reference
AL ..............P 4-62
CO .............P 4-43
10
7
3
5D1
4k7
10u
3555
5V
7550
BC547B
PROTECTION
22k
9303 F 9
9304 G15
9308 L 5
9309 G 6
9510 D22
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
focus
screen
8911
5E6
3532
3537
3592
4E7
6551
BAV21
6552
BZX79-C18
3581
6550
BAV21
GNDAU
(12V Audio)
-7V
G
5E6
9532
3M3
9A
9514 M24
9515 K27
9517 M20
9522 F24
9523 F23
32 33 3412 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
BYD33J
6592
3582
6568
BAV21
2582
220n
5556
80E
32 33 3412 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
6584
56k
6581
3584
9527 G25
9532 K32
T
ube PCB
TV..............P4-49
VS..............P 4-59
FOCUS
SCREEN
1926
1
2
3
4
BZX79-C10
8
BAV21
22k
1
2
3
4
5
6
7
...P 4-27
TO CRTANODE
TO TUBE PCB/1991
TO TUBE PCB/1993
4u7
2592
VRGB
GNDA
HEATER
AQUADAG
1923
8
PROT
BCI
VCOMP
GND9A
9A
-7V
A
B
C
D
E
F
G
H
I
J
to TUBE PCB 1969to Signal-Chassis (TV) 1912
K
L
M
N
O
P
GRUNDIG Service 4 - 17
GRUNDIG Service 4 - 18
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55…
A
E
8
3
2
0
4
Leistungs-Chassis / Power Chassis TVR 51… (GSPD)
1013 D 2
1013 E 2
1300 C 7
1311 E 5
1371 H13
B
SWITCH PCB
C
D
E
F
G
H
I
J
K
L
M
N
O
1921 C15
1922 P20
1923 M33
1924 C10
1925 C19
1301
2324
4n7
2323
1926 K33
2305 E11
2308 H 7
2309 I 8
2312 C12
IN OUT
3342
2329
330p
0,3V
9
2327
10
2,6V
470p
3328
15
2,6V
33k
3327
12
5k1
2325
560p
0,5V
14
2,5V
2,5V
13
1n
3324
100k
2314 D10
2315 F 8
2316 E 7
2320 L 6
2323 K 2
1003
1
1
23
2
10k
DEMAGNETICATION
Vdem in
8
Vdem out
52
Iref
Sync
C
OSCILLATOR
T
R standby
F
R standby
P
2.5V
VOLTAGE
FEEDBACK
E/A OUT
FOLDBACK INPUT
18k
3322
2324 K 2
2325 J 2
2327 I 2
2328 I10
2329 H 2
3302
4M7
4
3330
10k
Rref
MANAGEMENT
Vosc prot
Vosc
Iref
STANDBY
(REDUCED FREQUENCY)
ERROR
AMP
FOLDBACK
CURRENT SENSE INPUT
5
1,3V
3348
180k
4561 7 8 9 10 11 12 13 14 15 16 17 182 19 20 21 22 233
1013
1013
2,5V
16 1
Vref
Iref
REFERENCE
BLOCK
2n2
2341
HOT CIRCUIT , BE CAREFUL AND USE AN
ISOLATION TRANSFORMER WHEN SERVICING
DO NOT OPERATE WITHOUT CASE
CAUTION : LETHAL POTENTIALS AT PRIMARY
BECAUSE A HOT GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION
2330 I 8
2331 F10
2332 G11
2335 L10
2336 J10
1013
9310
9311
1013
MC44603P
Vref
enable
7
3359
2337 L 9
2338 M 9
2341 L 4
2351 K14
2352 L15
1311
T4AH
7310
INITIALIZATION BLOCK
Set
Latch
Reset
THERMAL
SHUTDOWN
CURRENT
SENSE
Dmax & SOFT-START
Iref
0,1V
330E
9308
SUPPLY &
Q
CONTROL
2,4V
2353 K18
2362 F14
2371 G14
2373 G15
2374 H15
3304
270E
UVLO1
BUFFER
Vovp out
Vref
OVERVOLTAGE
MANAGEMENT
OVERVOLTAGE
PROTECTION
UVLO1
Vref
Soft Start & Dmax
11
2u2
2320
COLD GND
HOT GND
9309
14,5V
Vcc
OUTPUT
Vcc
2375 M14
2377 I13
2378 L14
2379 K14
2381 H14
1300
3333
18V
Vc
2
3
4
GND
6
68E
13,5V
3V
2316
2308
1n
6348
2392 J14
2512 K27
2513 M22
2514 L20
2515 N19
5312
220n
UF2327
3338
39E
2309
4n7
BAT85
Ubat
2516 M24
2517 N20
2519 O25
2520 N26
2551 K30
2
1
20k
3357
3358
4k7
20k
3362
3310
3337
2E
290V
2315
2330
3356
3363
2552 G22
2553 M30
2555 N28
2573 E24
2575 F26
3
68u
9303
7330
2,7V
4n7
3339
3334
BAV21
6335
100n
2337
10k
5k9
3331
51
1k
0E82
2338
3335
4n7
2581 H21
2582 M32
2583 H22
2586 F25
2587 E24
1924
1
2
2314
270k
315V
STP4NA60FI
0,1V
6336
0E82
3347
100E
2592 J33
2593 D27
2594 G21
3304 C 6
3310 B 9
Degaussing Coil
1n
6314
1N4006GP
6313
1N4006GP
10n
2331
6332
5350
80E
470p
2328
BYD33D
2336
220p
6334
BAV21
2335
100u
6315
1N4006GP
6316
1N4006GP
2332
BYD33J
50
3341
5E6
2305
1n
5354
80E
3312 D11
3313 D12
3322 L 3
3324 K 2
3327 J 2
7
24k
3336
6
470p
5
1
2
8
4
3
3312
3M9
5330
3328 I 2
3330 H 4
3331 G 9
3333 H 7
3334 I 9
2312
1n
3313
3M9
3335 I 9
3336 F11
3337 D 9
3338 H 8
3339 I 9
5362
80E
9
12
15
13
14
15
16
15
11
10
1371
T2,5A
3341 K11
3342 H 2
3343 N16
3347 K 9
3348 L 3
5363
80E
9302
2377
3350 L18
3351 L16
3352 K17
3353 K18
3354 J18
3391
6k8
6361
BYW36
6371
BYV27-100
2371
470p
6372
BYV27-100
2381
470p
1n5
BYD33D
2392
6351
BYW98-200
2351
470p
33u
10u
5361
6392
3393
BYD33D
3375
6k8
6374
2378
2362
5370
80E
3360
390E
1n
180E
3356 M 8
3357 N 8
3358 N 8
3359 L 4
3360 I14
100u
2379
1n
2375
TL431CLP
2374
470u
390E
2352
7331
220u
3364
2373
220u
3362 O 8
3363 N 8
3364 I15
3375 M14
3391 E14
3393 E14
3394 E16
3395 E16
3512 M22
3513 M22
to Signal-Chassis (TV) 1909
14M1
14/9M1
14M2
1921
1
2
3
32V
K
A
220u
9304
6393
GNDAU
2,5V
R
5371
22u
5373
BZX85-C6V8
3394
100k
8k2
3395
22u
23
22u
5374
8,5V
5V-REG
6343
BZX79-C9V1
10k
3343
4
5372
5364
80E
14M2
3514 N24
3517 N24
3518 M26
3519 N27
3521 O27
GNDM
5
33V-REG
22u
5V-SWITCH
7350
LM317T
4,1V
3351
GNDM
6
BZX79-C15
MTP3055E
1
2k7
7352
7
5352
5,4V
5D
22u
3522 P26
3523 P26
3524 M28
3525 P25
3527 D22
GND5D
8
80E
5351
5,4V
6352
3352
820E
5V-STBY
5A
9
5353
BC547B
22u
7351
GND5A
10
3353
3529 N27
3530 M20
3531 J28
3532 H31
3536 M19
33A
111213
STBY
15V
100n
2353
1k
15V
3350
STBY
STBY
33A
14H
14H
3354
220k
-7V
9A
81mV
27k
5D1
45
5Stby
33
3537 H31
3538 I28
3551 K30
3553 N29
3554 M29
HDEF1
1925
1
14H
3585 H22
3587 E23
3588 H21
3591 C28
3592 I31
DEFLECTIONVERTICALHORIZONTAL
VDEFL
6
VDEFL
8
8V
100n
2594
680E
3577
4,9V
1,5V
7587
BC547B
H-DRIVE AMP
0,95V
BAV21
6583
0,47V
330p
2581
3588
150E
TDA3653C/N2
9517
Output
Stage
Protection
2517
Guard
Circuit
Output Stage
45678
10n
HDEF2
3
3578 L26
3579 M26
3580 H19
3582 L32
3584 M33
Ubat
VDEFH
4
5
VDEFH
4k7
Ubatlot
2
3555 M30
3556 P27
3558 N30
3559 P24
3577 G21
3580
47
Thermal
Protection
Driver
GND
2,3V
2515
23
1
0V 2,3V 15V0V 28V 30mV 8V 28V
2514
1n
3536
3530
5k6
1k8
2n2
3595 I26
3596 F22
3597 G25
3598 F22
3599 I24
Ubat
82,7V
3596
2552
18V
7584
MPSA43
7510
VER. STAGE
6513
BAV21
2513
100u
48
5312 D 8
5330 E11
5350 H10
5351 D17
5352 H17
5510
3527
1k
12k
3598
100n
3585
Voltage Stab.
&
Current Source
Flyback
Generator
3513
680E
46
12k
2583
5581
3512
3587
33k
BAV21
2587
1u
7583
BU1508DX
536
537
537
537
537
6582
LIN
TR
VDEFH
5353 H17
5354 H11
5361 D14
5362 E13
5363 E13
49
9523
CU15
2k2
1n
9
680E
TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE
P
THE INPUT VOLTAGE SLOWLY, WHEN TROUBLESHOOTING THIS TYPE OF POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
Q
HOT PART
43
1922
3
4
GNDTV
5
HDR
1
2
VDR
VFB
to Signal-Chassis (TV) 1911
34
HFB/SC
4561 7 8 9 10 11 12 13 14 15 16 17 182 19 20 21 22 233
4 - 19 GRUNDIG Service 4 - 20 GRUNDIG Service
TVR 37…, TVR 51…, TVR 55… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
BAV21
2587
7583
1508DX
5364 I16
5370 G14
5371 F16
5372 F16
5373 G15
1u
6582
9522
86V
LINE OUTPUT
TRANSISTOR
5374 K16
5510 D22
5550 C29
5556 N32
5581 G22
2573
430n
BC547B
1,1V
2586
5,2V
7585
1n
3597
330k
5D1
6313 E10
6314 D10
6315 D11
6316 E11
6332 G10
9527
1,1V
6334 K10
6335 L 9
6336 I10
6343 M16
6348 J 7
2575
HFB-DRIVER
8n2
6351 J14
6352 J17
6361 F14
6371 G14
6372 H14
47u
2593
6374 L14
6392 I14
6393 J15
6511 J27
6513 L22
9518
53
6550 M31
6551 L31
6552 L31
6553 L28
6554 M28
3591
4E7
6568 M32
6581 L32
6582 E24
6583 H21
6584 L32
2
1
6
5
6592 I32
7310 H 5
7330 H 9
7331 E15
7350 K16
5550
7351 L18
7352 J17
7510 I22
7550 M30
7578 M26
Reference
AL ..............P 4-62
CO .............P 4-43
10
7583 F23
7584 H21
7585 H25
7587 G21
9302 H13
8911
9303 G 9
9304 H15
9308 L 5
9309 H 6
9310 D 5
DE..............P 4-63
IO...............P 4-55
GSPD ........P 4-16
focus
screen
G
1E2
1E2
3537
3532
9311 E 5
9515 L28
9517 N20
9518 C28
9522 F24
32 33 3424 25 26 27 28 29 30 31
KSMD ........P 4-31
KSPD.........P 4-37
TU2............P 4-52
9523 G23
9527 G25
9532 L32
9535 L29
T
ube PCB
TV..............P4-49
VS..............P 4-59
ANODE TO CRT
TO TUBE PCB/1991
FOCUS
TO TUBE PCB/1993
SCREEN
...P 4-27
B
C
D
E
F
G
H
VDEFH
3514
120E
3599
2516
330n
3517
180
1k
VDEFL
3579
3595
BC557B
14,7V
3k3
7578
15k
28,3V
3578
2520
100u
220E
24,3V
3518
2512
23,6V
750E
470u
3519
BYD33D
6511
v-shift
2k7
3529
4
3538
2E7
3531
2E7
3551
30k
6553
6554
2555
BAV21
9535
BZX79-C24
3554
22k
100n
3553
9515
3524
4k7
10k
7
3
33n
2551
5D1
10u
3555
2553
5V
0V
7550
BC547B
PROTECTION
68k
22k
3558
4k7
3592
2E7
6551
BAV21
6552
BZX79-C15
6550
BAV21
(12V Audio)
GNDAU
9A
-7V
9532
BYD33J
6592
6568
BAV21
2582
220n
5556
80E
3582
6584
56k
6581
3584
BZX79-C4V7
8
BAV21
4k7
4u7
2592
1926
1
VRGB
2
GNDA
3
HEATER
4
AQUADAG
1923
1
8
2
PROT
3
BCI
4
VCOMP
5
GND9A
6
9A
7
-7V
I
J
K
L
M
N
to Signal-Chassis (TV) 1912 to TUBE PCB 1969
O
2519
3559
2200u
22E
3522
3525
2E2
3523
100E
v-amp
2E7
3521
220E
10k
3556
32 33 3424 25 26 27 28 29 30 31
GRUNDIG Service 4 - 21
P
Q
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams TVR 37…, TVR 51…, TVR 55…
4
2
2
2
3
M
Leistungs-Chassis / Power Chassis TVR 55… (GSPD)
1013 D 2
1013 E 2
1300 C 7
1311 E 5
1371 H13
SWITCH PCB
B
C
D
E
F
G
1572 J31
1921 C15
1922 P20
1923 M33
1924 C10
1301
3302
4M7
4
2323 K 2
2324 K 2
2325 J 2
2327 I 2
2328 H10
1925 C19
1926 J33
2305 E11
2308 H 7
2309 H 8
1
IN OUT
2
2312 C12
2314 D10
2315 F 8
2316 D 7
2320 L 5
1003
1
23
1013
1013
4561 7 8 9 10 1123
2329 H 2
2330 I 8
2331 F10
2332 G10
2335 L10
1013
9310
9311
1013
2336 J10
2337 L 9
2338 M 9
2341 L 4
2351 K14
1311
T4AH
2352 L15
2353 J18
2362 F14
2371 G14
2373 G15
3304
270E
2374 H14
2375 M14
2377 I13
2378 L14
2379 J14
1300
2381 H14
2392 I14
2512 K27
2513 M22
2514 L20
220n
2316
5312
UF2327
2515 N19
2516 M24
2517 N20
2519 O25
2520 N26
2
1
3310
3337
2E
290V
2315
2551 K30
2552 G22
2553 M30
2555 N28
2574 E25
3
68u
9303
3331
2575 F26
2581 H21
2582 M32
2583 H22
2586 F25
1924
1
2
2314
3345
270k
Degaussing Coil
1n
6314
1N4006GP
6313
1N4006GP
24k
2331
6332
2587 E24
2589 C27
2592 I33
2593 D26
2594 F21
1N4006GP
1N4006GP
10n
BYD33J
6315
6316
2305
2332
1n
470p
3304 C 6
3310 B 9
3312 D11
3313 D12
3322 L 3
5330
7
6
5
3312
3M9
3324 K
3327 J
3328 I
3330 H
3331 G
2312
1n
3
3
18V
Vc
OUTPUT
GND
3333
2
3
4
6
13,5V
3V
68E
2308
1n
6348
3338
39E
2309
4n7
BAT85
UVLO1
BUFFER
Vovp out
Vref
OVERVOLTAGE
MANAGEMENT
OVERVOLTAGE
PROTECTION
UVLO1
Vref
Soft Start & Dmax
11
2u2
2320
9309
14,5V
Vcc
Vcc
3330
10k
2323
4n7
2324
2329
330p
2327
470p
3328
33k
3327
5k1
2325
560p
3324
100k
1n
3342
0,3V
2,6V
2,6V
0,5V
2,5V
2,5V
Vdem in
8
52
9
Sync
C
10
T
R standby
15
F
R standby
12
P
14
VOLTAGE
FEEDBACK
13
E/A OUT
FOLDBACK INPUT
DEMAGNETICATION
Vdem out
Iref
OSCILLATOR
2.5V
3322
H
I
J
K
L
10k
Rref
MANAGEMENT
Vosc prot
Vosc
Iref
STANDBY
(REDUCED FREQUENCY)
ERROR
AMP
FOLDBACK
CURRENT SENSE INPUT
5
1,3V
18k
3348
180k
7310
2,5V
MC44603P
16 1
Vref
Iref
Vref
enable
INITIALIZATION BLOCK
Set
Latch
Reset
THERMAL
SHUTDOWN
CURRENT
SENSE
Dmax & SOFT-START
Iref
0,1V
330E
9308
SUPPLY &
Q
CONTROL
2,4V
REFERENCE
BLOCK
2n2
2341
7
3359
M
2330
3356
51
0E82
2338
STP4NA60FI
0,1V
3335
0E82
3347
4n7
6336
75E
315V
470p
2328
BYD33D
2336
220p
6334
BAV21
2335
5350
100u
80E
7330
2,7V
1k
4n7
3339
3334
BAV21
6335
100n
2337
9k1
50
3341
5E6
5354
80E
1
2
8
4
3
HOT CIRCUIT , BE CAREFUL AND USE AN
20k
Ubat
3357
3358
3362
5k6
3363
4k7
20k
ISOLATION TRANSFORMER WHEN SERVICING
N
DO NOT OPERATE WITHOUT CASE
CAUTION : LETHAL POTENTIALS AT PRIMARY
O
BECAUSE A HOT GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION
COLD GND
HOT GND
TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE
THE INPUT VOLTAGE SLOWLY, WHEN TROUBLESHOOTING THIS TYPE OF POWER SUPPLY
P
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
Q
HOT PART
4561 7 8 9 10 1123
4 - 22 GRUNDIG Service
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