Sharp CD-BA250 (serv.man10) Service Manual ▷ View online
– 17 –
CD-BA250H/CD-BA2600H
TEST MODE
• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> + <POWER> TEST:CD operation test.
Any one of test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> + <POWER> TEST:CD operation test.
Function:-CD test mode.
-Enter test mode.
-Enter test mode.
C D T E S T
OPEN/CLOSE operation is using manual.
<<
>>, <<
>> buttons make pick's slide possible.
Do TOC IL. Do normal play.
When these following key is input
into PLAY key, track number can
be appoint directly.
When these following key is input
into PLAY key, track number can
be appoint directly.
<<PLAY>> key input.
<<MEMORY>> key input.
<<
1>> key: Track 4
<<
2>> key: Track 9
<<
3>> key: Track 15
<<STOP>> key input.
STOP
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
specific point.
<<MEMORY>> key input.
Tracking ON play from
that specific point.
that specific point.
<<STOP>> key input.
STOP
IL isn't done.
VOL — Last memory.
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF
Sliding the PICKUP with
<<
<<
>>, <<
>> button
must only be in STOP mode.
<<MEMORY>>
key input.
key input.
Adjustment result
automatically will
display as below
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
automatically will
display as below
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
explanation:
a) Focus off set.
a) Focus off set.
="FOFF_XX"
b) Tracking off set.
="TOFF_XX"
c) Tracking balance.
="TBAL_XX"
d) Tracking gain.
="TGAN_XX"
f)
Focus Gain.
="FGAN_XX"
g) RF level shift.
="RFLS_XX"
Adjustment result auto-
matically will display as
below.
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
matically will display as
below.
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
XX: Hex value.
CD-BA250H/CD-BA2600H
– 18 –
Standard Specification of Stereo System Error Message Display Contents
Error Contents
DISPLAY
Notes
Output while Device Protection Operation.
'PROTECT'
00: While in Protect Circuit Operate.
01: Over Current Detection.
02: DC Detection.
03:
TAPE
Mechanism Error.
'ER-TA**'
00: Tape Mechanism Error.
01: Initial Error.
02:
03:
CD/VCD
Pickup Mechanism Error.
'ER-CD**'
00: Pickup Mechanism Error.
01: PU-IN SW Detection NG.
02:
03:
04:
CD Changer Mechanism Error.
'ER-CD**'
10: Changer Error.
11: Initial Error.
12:
13:
Tray Error.
'ET-CD**'
20: Tray Error.
21:
22:
23:
Focus Not Match.
'NO DISC'
IL Time Over.
'NOT READ'
TUN
PLL Unlock.
'ER-TU**'
00: TUN Error.
01: PLL Unlock.
02:
03:
– 19 –
CD-BA250H/CD-BA2600H
Figure 19 BLOCK DIAGRAM (1/3)
+5V
CNS4
BI4
CNP4
M3
T/T UP DOWN
LOADING
+3.3V
TO DISPLAY SECTION
TO MAIN SECTION
CONSTANT
VOLTAGE
Q2
LASER
DRIVER
+3.3V
Q1
+5V
PICK UP UNIT
IC1
LC78645E
CD SERVO
VVDD
LDD
LDS
M
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
CNP8
CNP7
TRACKING COIL
FOCUS COIL
SW4
PICKUP
IN
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
R-CH
Q3
XVDD
RVDD
LVDD
ADAVDD
RFVDD
XL1
33.8688 MHz
OC. DISC NO
CLAMP SW
CD RES
CLK
DI
DO
CE
DRF
WRQ
+B6(+5V)
+B6(+5V)
DGND
L-CH
AGND
VCC3
VCC2
VCC4
VCC1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
WRQ
DO
DI
CLK
CE
TIN2
TIN1
FIN2
FIN1
TD0
FD0
SPDO
SLDO
CONT5
CONT2
CONT3
CONT4
RCHO
RVSS
LVSS
LCHO
80
42
79
75
20
5
40
18
24
23
14
8
21
22
29
35
41
47
46
7
10
9
8
7
15
1
2
17 25
42
41
83
39
4
7
6
5
16
82
26 27
3
1
6
4
5
2
3
1
6
4
5
2
3
1
6
4
5
2
5
4
71
61
62
63
69
57
56
55
51
50
40
37
19
28
26
23
22
21
3
2
7
1
6
8
9
6
1
5
4
3
2
45
43 44
25
70
64
65
66
48
49
18
CD-BA250H/CD-BA2600H
– 20 –
Figure 20 BLOCK DIAGRAM (2/3)
FM OSC
AM LOOP
ANTENNA
ANTENNA
L341
BALUN
SO302
FM
ANTENNA
Q301
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
JK690
VIDEO/AUX IN
R
L
R
L
FM
+B
+B4
CLK
+B4
AM IF
CNS601
ATT
–20 dB
Q101~
Q104
Q104
–B2
+B4
IC7
IX040
(2
IC561
IC562
KIA4558P
OPE AMP.
Q107
Q108
Q108
Q603
Q604
Q612
Q613
Q604
Q612
Q613
10.7 MHz
450 kHz
REC/PLAY
CLK
CE
DI
DO
DI
CE
MO/ST
SWITCHING
+B4
FM/AM
IC302
LC72131
PLL(TUNER)
OUT
FM/AM
L
R
BIAS
T1/T2
MUTING
P.B.
REC
AC BIAS
L
L
R
R
R
L
TAPE
TUNER
CD
PB
CNP7
FROM CD SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
SWITCHING
Q109
OSC
BIAS Q111
L103
Q105
Q106
Q106
REC PB HEAD
TAPE 2
PB HEAD
TAPE 1
R-CH
L-CH
R-CH
L-CH
IC601
LC75341
AUDIO PROCESSOR
+B4
R
L
REC
R
L
L NF
R NF
ALC
REF
R REC
L REC
POP REDUCE
R NF
L NF
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
R
L
FM/AM
MPXIN
STEREO
AM RF IN
AM OSC IN
FM
Q360
VT
OSC
X352
4.5 MHz
AM BAND
COVERAGE
COVERAGE
AM TRACKING
T303
T306
X351
456 kHz
456 kHz
MO/ST
VCO
DET
FM
FM+B
GND
AM IF
CF351
FM/AM IF MPX.
IC303
LA1832S
FM IF DET./
FM MPX/
AM IF
AM MIX
CF352
T351
CF303
CF301
FE301
TA7358AP
FM FRONT END
24
22 21
4
3
2
6
8
5
7
1
21
7
8
4
1
22
3
4
24
2
1
8
18
17
3
9
10
18
11
16
3
15
10
9
7
23
14
12
13
1
2
20
21
19
7
18
10
8
17
13
4
5
2
24
23
6
9
16
14
12
15
1
5
14
3
4
21
7
9
8
5
17
6
2
1
20
22
11
17
16
15
13
14
12
15
16
23
4
7
H/N
P.B
REC
T1/T2
T1/T2
HIGH
NOR/
16 15 14 13
11 10 9
2 4
3
8
READY
MPXIN
VSSA
VDDA
XOUT
RDCC
RDDA
RST
VDDD
VSSD
XIN
XT21
4.332 MHz
ICT21
LC72723
RDS DECODER
L354
LOW PASS
FILTER
QT21 AMP.
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