GRUNDIG Service
4 - 51
TVR 37…, TVR 51…, TVR 55…
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
1,5V
1,5V
0,8V
8V
3,3V
4V
8V
8V
0V
5V
11,7V
2,4V
0,8V
41
5,6V
5,6V
5
36
0,8V
1,5V
1,5V
VFB
VDR
HDR
PROT
ATV
STBY
STBY
BCI
VCOMP
HFB/SC
SEC_DET
IFID
GREEN
VOL
INTSC
HUE
RED
BLUE
not used
not used
14M2
14M2
GNDM
from TXT
2 speakers
for
to AL
+8V
cooling plate
for Plug Print only
for 2 speakers only
LS2
LS1
N.C.
16 Ohm
from AL
to CO,DE
from/to PLSP 1922
for TXT only
from CO
from TXT
5Stby
delete for
for RGB-SCART only
to TU2
to IO,AL
to DE,CO,TXT
to VS,IO
to DE
delete
for
NTSCPB
VDR
HFB
LS2
LS1
N.C.
14/9M1
14M1
9A
-7V
GND9A
VCOMP
8 Ohm
32 Ohm
from/to PLSP 1921
from/to PLSP 1923
BCI
HDR
VFB
GNDTV
33A
5D
GNDM
GND5A
5A
GND5D
PROT
for SECAM only
for NTSCPB only
to TU2
for TU2 only
STBY
1k5 forTXT
1k5 forTXT
1k5 forTXT
not
used
or 16 Ohm
CART
or
to DE, AL
Plug Print
from AL
2741 K 6
2740 K 8
2733 K13
2732 M14
3215 D15
2731 C12
2730 B12
2729 N14
2728 N13
2727 M13
2726 K13
2725 K13
2723 L12
2722 L10
2721 K10
3214 A18
2720 L 9
2719 M 9
2718 K 9
2717 K 9
2716 B14
2715 C11
2714 E11
2713 E10
2712 F 9
2711 F 9
3213 A18
2710 F 7
2709 D 7
2708 E 7
2703 F 3
2702 F 2
2701 B 3
2700 B 2
2263 M28
2262 K28
2261 J28
3212 D19
2258 F31
2256 E32
2255 N32
2254 L32
2253 K31
2252 L32
2251 F31
2250 F31
2249 C29
2248 B29
3211 E19
2246 D33
2245 D32
2244 E30
2243 C30
2242 B31
2241 B30
2240 D29
2232 B16
2231 L17
2230 D18
3210 D17
2229 K14
2228 K14
2227 K15
2226 K16
2225 M16
2224 M16
2223 L16
2222 K21
2221 K21
2220 K23
3209 E17
2219 H25
2218 H25
2217 H27
2216 H27
2215 E25
2214 D21
2213 B23
2212 A23
2211 B21
2210 A21
3208 E16
2209 E20
2208 E19
2207 B17
2206 E18
2205 E17
3218 E24
2204 D16
2203 D16
2202 E15
2201 E15
2200 E14
3217 C24
3207 C16
1971 A30
1970 B33
1916 D33
1914 C33
1913 O18
1912 F33
1911 H33
1909 K33
1750 I 2
1746 M13
3206 C15
1745 M13
1740 M15
1732 B 9
1720 D10
1702 C 3
1701 C 3
1502 M28
1502 J28
1502 K28
1502 M10
3205 B16
1502 N22
1502 L11
1502 O10
1502 O12
1200 E18
1004 K31
1003 K31
1002 L31
1001 L31
3204 A15
3203 C15
3202 D15
3201 D15
3200 D14
2750 B 6
2748 O 9
3216 D26
2747 H 6
2746 G 4
2745 H 4
2744 H 4
2743 H 3
2742 K 4
4201 M15
4071 D 7
4056 G 5
4026 N24
6706 L10
4025 L23
4024 K23
4021 I 7
3775 B 6
3774 C 6
3773 B 6
3772 C 8
3771 C 8
3770 B 7
3760 M14
6263 M27
3757 O 9
3756 P 9
3755 O 5
3754 P 6
3753 O 6
3752 O 7
3751 P 7
3750 P 6
3748 O13
3747 N14
6262 L27
3746 H 2
3745 H 3
3744 H 2
3743 H 1
3742 H 1
3741 J 1
3740 K 8
3738 K 8
3737 K 8
3736 L 8
6261 J27
3735 K13
3734 L 9
3733 K10
3732 L11
3731 M 9
3730 M10
3729 M10
3728 N11
3727 K11
3725 K12
6242 E31
3722 M13
3721 M13
3720 L13
3719 D 8
3718 M14
3716 K13
3715 C13
3714 B13
3713 A13
3712 E12
6210 L21
3711 E11
3710 E11
3709 N12
3708 D 6
3707 A 5
3706 A 5
3705 F 3
3704 F 2
3703 F 1
3702 B 4
6209 L20
3701 A 4
3700 A 4
3267 N20
3266 L21
3265 N23
3264 M23
3263 M27
3262 K27
3261 J27
3259 G30
6208 M23
3258 E31
3257 E31
3256 E31
3255 D30
3254 N26
6709 B 7
3253 K20
3252 I31
3251 H30
3250 F31
3249 C33
6708 J 2
6207 K19
3248 C33
3247 C29
3246 D32
3245 E29
3244 C33
3243 C32
3242 E30
3241 D29
3240 B29
3239 N26
6206 L21
3238 N26
3237 N26
3236 L27
3235 K27
3234 M25
3233 L25
3232 J25
3230 M19
3229 L19
3228 K17
6200 M22
3227 K19
3226 K19
3225 L17
3224 K17
3223 M16
3222 M15
3221 K16
3220 L15
3219 K15
5707 D 9
5706 M14
5705 K11
5704 D 7
5703 C 8
5702 D 9
5701 D 8
6707 I 2
5700 F 2
5203 L18
5202 L18
5201 L18
5200 K30
4700 L12
7762 L13
7754 I 3
7753 O 5
7752 O 6
7751 O 7
7750 O 8
7711 P13
7710 C 8
7709 P11
7708 H 2
7707 H 1
7705 K14
7705 I 8
7705 M12
7704 M11
7703 L 8
7700 A 3
7260 M24
7260 K24
7260 I24
7250 F31
7240 B31
7216 L15
7215 M15
7214 L17
7213 L19
7212 M20
7211 M20
7210 M21
7209 M23
7208 B27
7207 B26
7206 B19
7205 B18
7202 G27
7201 A22
7200 G 9
32
33
25
26
27
28
29
30
31
M
L
K
P
J
I
H
G
F
E
D
C
B
A
O
N
32
33
25
26
27
28
29
30
31
3256
33k
3245
4k7
47E
3249
3248
3242
2k7
1k
3263
1k
3262
1k
3261
3246
3243
10k
3216
47E
3244
4k7
3241
100E
3250
10k
3251
1k
3252
1k
3234
1k
3233
1k
3232
3k3
3239
3k3
3238
3k3
3254
12k
3237
12k
3236
8k2
3235
4k7
3240
3255
22k
3247
10k
3257
10k
3258
56k
3259
2255
100n
2254
100n
50V
2253
100n
100n
2249
10n
2248
47p
2215
2262
100n
2245
22n
2246
100n
2217
220n
2216
10n
2218
5n6
2240
10n
2250
100n
2241
2252
100n
2261
100n
2263
100n
220n
2243
220n
2256
220n
2258
GNDA
GNDA
GNDTV
GNDTV
GNDTV
GNDTV
GNDTV
GNDTV
TV
GNDTV
GNDTV
GND9VA
GND9VA
GNDTV
GND9VA
GNDTV
GNDTV
GNDTV
GNDTV
GNDTV
GNDTV
GNDA
GNDTV
GNDTXT
GNDM
GNDTV
GNDTV
GNDTV
GNDTV
GNDTV
GNDD
GNDD
GND9VA
GNDTV
GNDTV
GNDTV
5DDA
5AS
+12A
5STBY
+14/9M1
+33V
-7V
5DS
5AS
+33V
+8V
+9VA
+9VA
+14M2
+8V
5AS1
5DS
5TS
+14M1
5STBY
+8V
+8V
STBY
7250
BC847B
BLTXT
RTXT
GTXT
BTXT
BOSD
GOSD
ROSD
BLOSD
STTV
STBY
IFID
16V
47u
2244
16V
47u
2219
16V
220u
2242
16V
100u
2251
5200
22u
T250mA
1004
T500mA
1001
1002
T630mA
1003
T500mA
13
AKP
28
1502
12
AKP
23
1502
11
AKP
27
1502
5
3
BT
Y0
Y1
BT
2
1
Y0
Y1
BAT85
6263
BAT85
6262
BAT85
6261
1970
1
2
3
1914
1
2
3
1971
1
2
3
DTC124EK
7208
13
12
3BT
8
Vss
Y0
Y1
1912
1
2
3
4
5
6
7
BZX79-C18
6242
1909
10
9
8
7
6
5
4
3
2
1
11
12
13
TDA7056B
7240
3
5
4
1
9
6
8
7
2
DC_VOL_CONTR
GND
INPUT
VCC
Protection
POWER-GND
-
+
NC1
OUT(-)
OUT(+)
NC3
1911
1
2
3
4
5
4
5
6
3
9
8
7
2
1
LGS6507
1916
7202
TDA8395P/N2
10
11
12
13
14
15
2
3
4
5
6
7
8
9
Cloche
Tunning
Sandcastle
f.
Tunning
Deemph.
Output
Stage
Control
Ident
-(R-Y)
-(B-Y)
CC
PLL
DTA124EK
7207
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
Tube PCB ...P 4-27
TV ..............P 4-49
VS..............P 4-59