Goldstar fh-x1 Service Manual icblk

INTERNAL BLOCK DIAGRAM OF ICs

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-

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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-

04 (358D)

+ -

--

REGULATOR

f MUTE

1 M 4)

+ -

LEVEL
SHIFT

- 20 -

INFORMATION OF ICs MI-COM

n IClOl KS57C0108

Pin No.

1
2 P52
3 P51

4 P50

5

6
7 Xin

8 P63/KS3

9 P62/KS2
IO PGl/KSl
11 PGO/KSO
12 P73/KS7
13
14 P71/KS5
15 P70/KS4
16 vss
17 P13/INT4
18
19

20
21 P23/BUZ
22 P22/CLO
23
24 P20/TCLOO
25
26
27 POl/SO
28 POO/SCK­29 P83
30
31 P81
32 P80
33 NC
34 NC
35 P33
36
37
38
39
40
41 P43
42 P42
43 P41
44 P40

Port Name.

P53

RESET­Xout

P72/KS6

P12/INT2
PI l/INTl
PlO/INTO

P21/TCLOl

P03/BTCO
PO2/S I

P82

P32
P31/TCLl
P30/TCLO
VDD
TEST

I/O

0
Unused
Unused

0

I

-

-

0

0

0

0
Unused
Unused
Unused
Unused

-

Unused

I
I
I
I
I
I
I

Unused

I
I

0
Unused
Unused
Unused
Unused

-

­I

Unused

l/O
l/O

-

-

Unused

0
0
0

Signal Name

XRST

PLL CTRL

-

RESET-

MCLK

MDATA

MLAT

MUTE

GND

SLEDSW

TRCNT

SCOR
KEY1
KEY0

SENS

FOK

SUBQ

CLSSW

SQCK

GND
GND

GFS

BUSY

SDATA

VDD
GND

KEY-C
KEY-B

KEY-A

Meaning

CDP LSI Reset (L)

CDP LSI Power Control (H-On, L=Off)

Micom Reset (L)
Osci I lator Output
Osci I lato Input
CDP LSI CLK for Command TX
CDP LSI Data for Command TX
CDP LSI Latch for Command TX
Mute

GND

Sled Limit S/W Detect
Track Count Input
SCOR Input
Key Signal Input 1
Key Signal Input 0
SENS Signal
Focus OK Signal

Sub-Q Data
Door Open/Close SW
Sub-Q Clock for Data Read

GND
GND
GFS Signal

Receiver Communication Line - Busy Signal
Receiver Communication Line - Data Signal
VDD
GND

Key Scan Signal C
Key Scan Signal B
Key Scan Signal A

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