Grundig TVR 3735 FR/TOP, Руководство по обслуживанию

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GRUNDIG Service 33
TVR 3735…, TVR 3740…, TVR 5540… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Blockschaltplan / Block Circuit Diagram – TV/VCR
Reference
Oscillograms....4-22
PS......................4-5
CRT ...................4-7 CO ...................4-11
HA ...................4-12
DE ...................4-13
TV....................4-15 TU2..................4-17
VS....................4-19
TM ...................4-21
PS
11 10
PAF01
U102
Tuner 2
1
RGB OUT
SIF
V OUT
QC512
+
4
CVBS
3
Audio OUT
5
QC506
15
+
QC510
AV
- MUTE
2
SUB AUDIO
MAIN AUDIO
1
QC205
SUB AUDIO
V-
OUT
1
EXT
AUDIO
IN
30 28 32 71
EXT
AUDIO
IN
73
77
A SW OUT
SUB AUDIO
NC
38
S-VHS / Y (CVBS)
QCY
13
J266
+5V
QC102
9
RCJ31
9 5
AM-Audio
SE-L
9
AM-Audio
SE-L
+
5 7
FM-IN / DE EMPH
EXT
AUD
IN
J259
RCJ06
1/14
1/2
only 2-T
uner (TU2)
7
QC201
–
DEMOD
IF AMPL
AGC
AUDIO
IF-AMPL
DEMOD
+
+
13
Z204
Z207
11
14
SF03
only 2-Tuner
A SW OUT
11
RCJ05
SF04
SF02
IF AMPLIFIER
DEODULATO R
SF01 AGC
+ +
QC504
Z504
–
QC505
Z502
6
–
6
QC503
55
QC501
2
RCY24
IF
SUB VIDEO
EXT
VIDEO IN
JS01
EURO AV
SLOW SW
CANAL
+
I3
(TU2)
NC
75
+
QCY18
QCY05, 14
…
16, 19
FM DEM. / IF-Audio
CVBS IN
13
17
15
VIDEO OUT
B6V
BLANK
R G
B
PY04-(4)
Y/C
SPLITTING
YC
S-VHS / C
PA
L / SECAM
NTSC DECODER
DELA
Y LINE
SA
TURA
TION /
TINT
RGB
MATRIX
C
11
EXT CVBS IN
+8V
+8V
+
Audio-
Processing
34 45
SECAM-L
14 15
IY03
FB
OSD RGB
OSD BK
from EURO-A
V
H.SYNC V.
SYNC
REC / PB
AMPL.
2TU
1TU
38
CVBS OUT
+
CVBS
10
R G B
SLOW SW
FAST
SW
QC703
QC51
1
QC515
S SW
QC502
19
…
21
18 22
BRIGHTNESS
CONTRAST
LIMITER
CUT OFF
ABL
(I Beam)
26
23… 25
5
22 19 45
5
23 30
47
…
49
50
D704
D701
…
703
46
CANAL
+
IY01 (VS)
I501
(TV)
1 / 4
7
10
+
QCY08; QCY1
1
PY01
PB ENV
BB
2/6
20 19
1/3
8
16 15
11
7
5V
I601
(TV)
CRT
BLANK
24
12
15
21
+
QCL05
1/14
QCL06
+ –
I
2
C
7/8
D502
54
48/49
8
1
8
1
12
9…
11
C514
18
11
REC Y
19
REC H
9
REC C
–
QCL07
VOLUME
31
OSD / TELETEXT
I701
(CO)
3
PAF02
3
1
Vi
deo
1 3
PF04
3 1
Audio
Headphone
PF02
11 10
PF01
+ –
HEAD AMPL.
IY04 (HA)
96 14
PA
Y03 1/2
PA
Y01
PA901
3
3…
5 7
P901 3
…
5
7
I901 I902 I903
38
5
PA406
4
T402
IL01
(TU2)
IL02
I201
U101
Tuner 1
Signal Chassis
TM
Vi
deo- / Chroma
Processing
35
P406
4
!
16
SW(P
A
)
3 9
10
4 8
11
I506
5;6;12
SW(P
A
)
D504
(CO)