Grundig GV 29 EURO, Service Manual

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GV 29 EURO, GV 9300 EURO Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams GV 29 EURO, GV 9300 EURO Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
GRUNDIG Service 4 - 5 GRUNDIG Service 4 - 6
Synoptique des circuits imprimés – Numérique / Block Circuit Diagram – Digital
TAPE SPEED
DET
PLAY
REC
F-DIVIDER
CAP
SPEED CTL
CAP
PHASE CTL
WAVEFORM
SHAPER
DRUM
PHASE CTL
RF SW
+
DRUM
SPEED CTL
+
SYNC SEP
Vref
66
65
68
70
75
74
REC CTL
DRIVER
WAVEFORM
SHAPER
AF SW
DUMMY
V
H.A.SW
ROTARY
TRACKING
CTL
24
98
20
23
33
34
50
-
+
CTL HEAD
CAPSTAN
MOTOR
C-FG
D-FG
HEAD
DRUM
MOTOR
D-PG
MECHANISM
MC-FR
L.P.F
D/A CONVERTER
L.P.F
D/A CONVERTER
CTL+
CTL-
DPG IN
DFG IN
CTL-
CTL+
MC FR
VD(TO MCOM)
QVD
RF SWP
TO
VA-A
(1/2)
V LOCK P
H AMP SW
ROTARY
RF SWP
C SYNC
ML-D
ML-S
T.TOP.S
INITIALIZE
RESET
LOADING
MOTOR DRIVER
+
-
4
3
10
2
ML
+
-
LOADING MOTOR
ROTARY
SW
MECHANISM
MODE SWITCH
ERASE PREVENTION
SWITCH
TAPE END LED
TAPE END SENSOR
TAPE TOP SENSOR
FL START SW/
RESET
FL START
+SAFETY SW
T.END.S
80
88
7
6
25
8
89
(1/2)
SERVO
(MN101D01)
TAKE-UP
REEL
SENSOR
3
T REEL P.
POWER DOWN
POWER CTL
(TO PW-A)
10
POWER CTL
9
12
SW DATA 0
SW DATA 2
CFG
ALWAYS 5V
85
ENV DET
IR REMOTE CONTROL
RECEIVER
RR701
REMOCON
5
AF SWP
30
67
84
ENV SW
100
99
11
SW DATA 1
S REEL P.
4
SUPPLY
REEL
SENSOR
23
24
25
NCS
SCK
SDI
SDO G9
G1
KEY IN 0
KEY IN 3
26
31
42
15
6
29
DISPLAY
(FLD)
A7401 (TM-1 BOARD)
OPERATION
KEY-MATRIX
KEY IN 0 ~ KEY IN 3
G1 ~G9
GRID
SEGMENT
B ~ K (KEY SCAN)
SEG A
SEG L
SEG A
SEG L
FLD DRIVE
AND KEY SCAN
FLD CS
FLD CLK
FLD DATA OUT
FLD DATA IN
27
14
16
15
(TU/IF BLOCK)
TU AUDIO NORM (TO AD-A)
VIDEO OUT(TO VA-A)
POWER DOWN DET
Q3003,Q3004
PS CTL
(TO PW-A)
97
POWER SAVE CONTROL
WAFEFORM SHAPE
WAFEFORM SHAPE
Q3007
Q3008
IC301
IC301
IC305
IC302
MPU
SYSTEM CONTROL, OSD
TIMER, TUNING CONTROL
IC304
IC141
IC701
TUNER
~
~
~
~
~
~
~
ROTARY
H AMP SW
ONLY GV9300 EURO
22
X3001
32KHZ
40
41
XI
XO
38
37
OSCI
OSCO
X3002
14.32MHz
PB L
YCA MUTE
PB L
YCA MUTE
44
62
TO VA-A
A MUTE
78
A MUTE
VD OUT
VD IN
VD IN FIL
I2C DATA
18
17
49
50
47
OSD SIG OUT
YCA CLK
YCA DATA
TO VA-A
I2C CLK
A.OUT
V.OUT
21
24
ANT
IN
S CLK
10
PLL DATA,S DATA
PLL CLK,S CLK
23
AFT
S DATA
11
AFT C
83
TU SW2
20
SW2
86
SW1 TU SW1
19
87
REC H REC H
60
ALTOFF H ALTOFF H
63
NORM A CTL NORM A CTL
91
FSS IN
95
FSS IN
28
TU CSYNC
C SYNC
YCA CLK
YCA DATA
TO TB-1
I2C ROM
X3I
X3O
40
41
FSC
TO VA-A
FILTER
VD2
SW
BB H
VD1
Q3005
SECAM DET SECAM DET
58
BB H BLUE BACK H
59
SECAML SECAML
57
VPS/PDC
6
7
Reference
Oscillograms ....4-14
CP-1 ................4-11
PW-A ...............4-23 SY-A ................4-19
TB-1.................4-24
TM-1 ................4-18
TN-A ................4-21 TM-A................4-18
VA-A ................4-21