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5-8 Focus Bias Adjustment
Use the special disc(continuous recorded disc)
No.
Key
1 4 ¢
2
3 PLAY
4 4 ¢
5 PLAY
6 4 ¢
7 PLAY
8 PLAY
* Notes :
1. The relation between the C1 error and focus bias value
is shown in the figure below. Points "a" and "b" in the
figure are detected by the above adjustment. Focal
position "C" is automatically obtained from points "a"
and "b" by calculation.
2. The C1 error rate fluctuates. Therefore, perform the
adjustment according to the observed mean value.
TE
L 13942296513
6. Microprocessor: M30624M-308FP(IC401)
6-1 Periphery Block Diagram
EEPROM Write
RELAY
RESET
REMOCON
Remote
key
POWER key
LCD Back
Light
LED0, LED1
LED
www
.
CIRCUIT DESCRIPTION
Display/Function
Select [FBIAS ADJU]
Load the disc.
[a=xx yyyy/] point a
(xx=focus bias, yyyy=C1 error)
Adjust "yyyy" to 220 ✻
[b=xx yyyy/] point b
Adjust "yyyy" to 220 ✻
[C=xx yyyy/] point c
Check "yyyy" within 50
Display shows [aa bb cc(xx)] focus bias adjust
(aa= point a,bb=b,cc=c )
A/D keys
AC/BATTERY
V.DET.
KEY1-3
SCL
SDA
RELAY
RESET
M30624MG-308FP
BL0,BL1
LCDSDA
SQSO
LCDCS
LCDSCL
SQCK
x
ao
y
LCDRES
LCDRS
LCD
CD
i
Control
DSP
SCOR
CRXD
8
C1 error
5-9 Error Rate Check
No.
Key
1. CD Error Rate
1 4 ¢
2
3 PLAY
4 STOP
5 EJECT
2. MO Error Rate
No.
Key
1 4 ¢
2
3 PLAY
4 STOP
5 EJECT
Q Q
3
6 7
1 3
SENS
CD POWER, LDC,HI SP. SCLK. CD CLK.XLAT.CD DATA.XRST
CLOSE
CLS SW
TUNER ON/OFF, SA CLK,
SA DATA
ST, SD,PLL DO
SYSTEM IC
LC75396NC
MD CE
MD RST
u163
MD
.
u-COM
CTXD
MDX-01/02
2 9
9 4
2 8
Display/Function
[CPLAY MODE]
Load the test disc(TGYS-1)
Display shows [CPLAY MID]
Access end
[c=xxxx a=yy] xxxx=C1 error (lower 20) yy=AIDP error
[CPLAY MODE]
Unload disc.
Display/Function
[CPLAY MODE]
Load the recordable disc
Display shows [CPLAY MID]
Access end
[c=xxxx a=yy] xxxx=C1 error (lower 50) yy=AIDP error(00)
[CPLAY MODE]
Unload disc.
1 5
0 5
8
2 9
9 4
CD Door
Control
TUNER
TUNER PLL
IC
SYSTEM IC
m
co
9 9
Focus bias value
2 8
9 9
7
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