Fehlersuchdiagramm und Blockschaltpläne / Trouble Shooting Diagram and Block Circuit Diagrams
GDV 120…
2 - 4
GRUNDIG Service
Laufwerksteuerung / Drive Control GDV 120
PCK UP
SPINDLE
MOTOR
SLED
MOTOR
LOADING
MOTOR
Mechanism SW (OPEN, CLOSE, The internal circumference LIMIT)
MLD1, 2
SLD1, 2
F0
≤
, TR
≤
LD1, LD2
LD, MD, VR, HFM
A, B, C, D, E, F
ACT.
I / V
LD
RFAMP
SpindleDRV.
4ch DRV.
IC501
TA1254AF
IC602
BA6849
IC601
BA5931
5V
VR
2VR
2.1V
4.2V
9V
9V
AMP
AMP
FOO, TRO, FMO
LD1, LD2
EQB, EQF (Equalizer Ajust.)
TE, RPO, RPZ, LVL
RF (CD)
DMO
_
CD
IC701
MPEG Board
TC9461F
16.9 MHz
5V
5V
IC801
TC90A41F
27 MHz
3/4
34
73/74
3.3V
Servo, DSP
CD decoder
DVD decoder
RF (DVD)
DVR
DVO
_
DVD
MICOM
IC900
384 Fs (16.9 MHz)
CONTROL Data
SERIAL Data
PARALLEL Data
HRST (RESET)
FE
SCD, SCL, SCB, *FRST,
CD_XDVD, DPCTL, LCSW
XCD_DVD, *FRST,
SPD-FG
IC802
TC6815
Laufwerksteuerung / Drive Control GDV 120/02
PCK UP
SPINDLE
MOTOR
SLED
MOTOR
LOADING
MOTOR
Mechanism SW (OPN, CLS, The internal circumference LIMIT)
MLD1, 2
SLD1, 2
F0
≤
, TR
≤
CD_LD, DVD_LD
LD, MD, VR, HFM
A, B, C, D, E, F
ACT.
I / V
LD
RFAMP
SpindleDRV.
4ch DRV.
IC100
LA9702
IC602
BA6849
IC601
BA5937
5V
9V
9V
FD, TD, SLD
*OPEN, *CLOSE, DMUTE2
EQB, EQF (Equalizer Ajust.)
FE, TE, …
RF
SPD
IC200
MPEG Board
LC78660
5V
16.9 MHz
106/107
34
3V
MICOM
IC500
384 Fs (16.9 MHz)
CONTROL Data
SERIAL Data
PARALLEL Data
HRST (RESET)
SBRAKE, SPD_FG,
*DMUTE
Servo, DSP
CD decoder
DVD decoder