GV 29…, GV 9000…, GV 9300…
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GV 29…, GV 9000…, GV 9300…
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GRUNDIG Service
4 - 5
GRUNDIG Service
4 - 6
Blockschaltplan / Block Circuit Diagram – Digital
ROTARY
AD-A
I2C CLK (GV9000/9300)
I2C DATA (GV9000/9300)
22
(GV9…)
(TM-1 BOARD)
11
12
(GV9000/9300) FSS IN
95 (GV9000/9300)
FSS IN (GV9000/9300)
CH+ CLK
CH+ DATA
TO TB-1
ONLY GV9000/9300
H AMP SW
ONLY GV900/9300
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
X3001
32KHZ
80
40
41
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
XI
XO
38
37
OSCI
OSCO
X3002
14.32MHz
PB L
YCA MUTE
PB L
YCA MUTE
44
62
TO VA-A
CFG
ALWAYS 5V
A MUTE
78
A MUTE
VD OUT
VD IN
VD IN FIL
85
ENV DET
IR REMOTE CONTROL
RECEIVER
RR701
REMOCON
5
I2C DATA
18
17
49
50
47
BUF
OSD SIG IN
OSD SIG OUT
Q3061
Q3062
Q3065
AF SWP
30
67
YCA CLK (GV29)
YCA DATA (GV29)
TO VA-A
84
ENV SW
100
99
11
SW DATA 1
S REEL P.
4
SUPPLY
REEL
SENSOR
5
(GV29)
23
24
25
NCS
SCK
SDI
SDO
G9
G1
KEY IN 0
KEY IN 3
26
31
42
15
6
29
DISPLAY
(FLD)
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
I2C CLK
A.OUT
V.OUT
21
24
ANT
IN
S CLK
(GV29) 10
PLL DATA,S DATA
PLL CLK,S CLK
23
AFT
(TU/IF BLOCK)
S DATA
(GV29) 11
TU AUDIO NORM (TO AD-A)
VIDEO OUT(TO VA-A)
5
3
S CLK
S DATA
POWER DOWN DET
Q3009,Q3010
PS CTL
(TO PW-A)
97
POWER SAVE CONTROL
AFT C
83
TU SW2
20
SW2
86
SW1
TU SW1
19
87
VIN
AIN
2
6
A OUT CV
V OUT CV
REC H
REC H
60
ALTOFF H
ALTOFF H
63
NORM A CTL
NORM A CTL
91
(GV29) AV CTL
96 (GV29)
AV CTL (GV29)
I2C ROM
WAFEFORM SHAPE
WAFEFORM SHAPE
Q3007
Q3008
TO TB-1
FSC
FSC
54
IC301
IC301
IC305
IC302
MPU
SYSTEM CONTROL, OSD
TIMER, TUNING CONTROL
IC304
IC701
3 IN 1 TUNER
~
~
~
~
~
~
~
Reference
Oscillograms....4-14
AD-A................4-29
CP-1 ................4-11
MC-A ...............4-19
PW-A ...............4-17
SY-A ................4-18
TB-1.................4-31
TC-A ................4-29
TM-1 ................4-22
TM-A................4-23
VA-A ................4-25