Goldstar fh-x1 Service Manual icblk
INTERNAL BLOCK DIAGRAM OF ICs
-_
-
-
n IC102(KB9223)
RF-
RF0
PDI
PD2
F
E
El
PD
LD
VR
ARF
IRF
ASY
EFM
RFI
DCB
Focus Error Amp .
FE-BIAS Adjustment
Tracking Error Amp
E/F Balance & Gain
Defect Detection
CircuitT
Interface Logic
I -
MICOM TO SERVO CONTROL
AUTOSEQUENCER
FSI to TM1 to BALl to PSI to GA1 to
TM6
FS4
Built-in Post Filter Amp(L&R)
BAL5
PS4 GA5
Focus Phase
& Offset cancel circuit
Tracking Phase
Compensation Block
& Jump Pulse GEN.
FOK DETECTION
+ CIRCUIT
FDFCT
FEFE0
TDFCT
TETEO
’
TE2
LPFT
TG2
TGU
SLO
SLSL+
SPDLO
SPDLSMPD
SMON
SMEF
FSET
MIRROR
MCP
FOK
-18-
n IC103(KS9286)
EFMI
DETECTOR
A
23BIT
’
EFM
’
DEMODULATOR
REGISTER
.-
SQDT
SQCK
I
--
CNTVOL
DPFIN
DPFOUT
DPDO
SMEF
SMON
SMDP
SMSD
LOCK
XOUT
XIN
MDAT
MCK
MLT
TRCNT
/ISTAT
(9)
( 83-
UlUl I AL
DI I I, - IA
I
I
I
MODE
SELECTOR
FRAME SYNC
DETECTOR
PROTECTOR
INSERTOR
I
X-TAL
TIMING
+ GENERATOR
I )
TRACK
b COUNTER
4 I
16K
SRAM
I
ECC
4
INTERPOLATOR
+I
9 FILTER
4
4
’
DIGITAL
& DE-EMPH
I I
’
LRCHO
ADATAO
BCKO
BCKI
ADATAI
LRCHI
EMPH
VREFLI
VREFHI
-19-
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