Sony HCD-FX350I Service Manual ▷ View online
HCD-FX350i
10
CD FACTORY MODE
Note 1: Do not enter the this mode while any other test mode is in prog-
ress.
Note 2: Do not enter any other test mode while the this mode is in prog-
ress.
Procedure:
1. Press the [
1. Press the [
?/1
] button to turn the power on.
2. Press the [FUNCTION] button to select CD function
3. Press three buttons of [DSGX], [DAB] and [
3. Press three buttons of [DSGX], [DAB] and [
?/1
] simultane-
ously.
4. It enters the CD factory mode and the message “FACTORY” is
displayed. When the [DSGX] button is pressed four times, the
following message (initial display) is displayed.
following message (initial display) is displayed.
– –X 1ON
S curve mode setting
Tracking servo setting
RF gain setting
Key Operation:
[DSGX]:
[DSGX]:
The display changes in the following order when-
ever the button is pressed.
ever the button is pressed.
(Initial display)
FCSAG
(
: Focus AGC value)
TRKAG
(
: Track AGC value)
RF_AG
(
: RF AGC value)
[ENTER]:
RF gain setting changes whenever the button is
pressed.
pressed.
“– –”: No gain fi xation.
“AL”: Fix to the gain for AL disc.
“RW”: Fix to the gain for RW disc.
[DAB INITIAL SCAN]:
Tracking servo setting changes whenever the but-
ton is pressed.
ton is pressed.
“ON”: Tracking servo ON.
“OFF”: Tracking servo OFF.
[FUNCTION]:
S curve mode setting changes whenever the button
is pressed.
is pressed.
“ ”: S curve mode OFF.
“S”: S curve mode ON.
5. To release from this mode, press three buttons of [DSGX],
[DAB] and [
?/1
] simultaneously.
SECTION 4
ELECTRICAL CHECK
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-
ed.
3. Use an oscilloscope with more than 10 M
Ω impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following checks.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
Procedure:
1. Connect the oscilloscope to CL102 (RFOUT) and CL117
1. Connect the oscilloscope to CL102 (RFOUT) and CL117
(VREF) on the BD73 board.
2. Press the [
?/1
] button to turn the power on, and press the
[FUNCTION] button to select CD function.
3. Set disc (YEDS-18) and press the [
u] button to playback.
4. Confi rm that oscilloscope waveform is as shown in the fi gure
below (eye pattern).
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
Checking Location:
+
–
–
BD73 board
oscilloscope
(DC range)
CL102 (RFOUT)
CL117 (VREF)
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
1.1 ± 0.4 Vp-p
– BD73 Board (Conductor Side) –
IC101
CL102
(RFOUT)
CL117
(VREF)
HCD-FX350i
11
MEMO
HCD-FX350i
12
5-1. BLOCK DIAGRAM - CD, TUNER Section -
B
C
D
D
E
A
F
SP+
SP-
LD
MD
VREF
AUTOMATIC
POWER
CONTROL
Q201
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC301
VO1+
2
VO1-
1
IN1 3
BIAS 23
SL+
SL-
VO2-
12
VO2+
11
IN2’ 9
T+
T-
VO3+
18
VO3-
17
IN3’ 20
F+
F-
VO4+
26
VO4-
27
IN4’ 24
MUTE 7
7 BIN
6 CIN
8 DIN
6 CIN
8 DIN
13 EIN
5 AIN
14 FIN
18 LDD
LDS
11 VREF
25 SPDO
19
24 SLDO
23 TDO
22 FDO
XOUT
XIN
X101
16.934MHz
S001
(LIMIT)
72
73
LIMIT-SW (CONT3) 32
LCHO
CD L
76
RCHO
R-CH
78
CE 43
CL 44
O-CD-CE
1
O-CD-CLK
5
DO 46
DI 45
I-CD-DI
4
O-CD-DO
3
O-CD-M-MUTE
2
O-CD-RES
A
B
I-CD-SW
88
94
I-DAB_RXD
93
O-DAB_TXD
3
CN5001
ANTENNA
DAB/FM
SW880
(CD LID OPEN/CLOSE DETECT)
R-CH
DAB L
6,*1$/3$7+
: CD PLAY
5FKLVRPLWWHGGXHWRVDPHDV/FK
: TUNER (DAB/FM)
SYSTEM CONTROLLER
IC801 (1/2)
47
RESB
CD-MP3 PROCESSOR
IC101
100
OPTICAL PICK-UP BLOCK
(DA11MMVGP)
DAB1
DAB TUNER MODULE
SIGNAL
S1_DIN
AUDR
AUDL
S1_DOUT
LINE AMP
IC370
SECTION 5
DIAGRAMS
(Page 13)
(Page 13)
HCD-FX350i
HCD-FX350i
13
13
5-2. BLOCK DIAGRAM - OUTPUT, PANEL, POWER SUPPLY Section -
SYSTEM CONTROLLER
IC801 (2/2)
RESET 11
35
O-POWER
MAIN POWER
ON/OFF CONTROL
Q909
+9V
REGULATOR
IC901
RESET SIGNAL
GENERATOR
IC802
+4V
REGULATOR
IC970
+9V
REGULATOR
Q910, 930, 934
+7V
REGULATOR
Q915, 931, 932, 940
RESET
SWITCH
Q802
SYSTEM +3.3V
D801
D907
VSTBY
RECT
D925 – 928
RECT
D902, 903,
D905, 906
I_POWER_MONITOR 26
X802
15MHz
Main Clock (15MHz)
Main Clock (15MHz)
16
15
X801
32.768kHz
Sub Clock (32kHz)
Sub Clock (32kHz)
13
12
I-RMC(SIRCS)
29
REMOTE CONTROL
RECEIVER
IC860
LED DRIVE
Q860
D860
(LCD BACK LIGHT)
O-LED-LCD
87
LCD801
LIQUID
CRYSTAL
DISPLAY
ROTARY
ENCODER
S850
VOLUME
S820 – 824,
S830 – 833
(FRONT PANEL KEYS)
I-KEY1, I-KEY2
19, 20
I-VOL-ENC-A,
I-VOL-ENC-B
I-VOL-ENC-B
32, 33
COM1 – COM4
83 – 86
SEG1 – SEG32
46 – 53, 56 – 79
_I-AC-CUT 27
AMP VCC
VM (7V)
VBUS (iPod)
D980
D802
+5V
REGULATOR
IC981
+5V
REGULATOR
IC952
CD +3.3V
+3.3V
REGULATOR
IC980, Q981, 982
OVER VOLTAGE
DETECT
Q960
D910
D913
D931
PROTECT
DETECT
Q987 – 989
30
I-PROTECT
36
O-CD-POW
9
O-iPod-POW
PROTECT
SWITCH
Q801
R-CH
R-CH
J320
5 IN-L4
28
SDA
27
SCL
32
12
IN-L1
SEL L
1 IN-L2
O-AUDIO IC-DA
TA
23
O-AUDIO IC-CLK
24
I-LEVEL
25
O-AMP-ON
34
13
VOL L
ELECTRICAL VOLUME,
INPUT SELECTOR
IC301
: TUNER (DAB/FM)
: CD PLAY
: iPod
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: AUDIO IN
A
CD/USB L
B
TU L
IN-L3
CN600
(iPod Dock)
27
28
28
LINE AMP
IC330
MIXER
IC310
R-CH
18
19
19
30
LINE_OUT_L
LINE_OUT_R
RXD
TXD
DGND
13
Acc PWR
3
25
OUT L
24
SB L
98 I-iPod-DET
45 I-iPod-WAKE
92 I-iPod-RXD
91 O-iPod-TXD
WAKE UP SWITCH
Q600
J350
R-CH
PHONES
POWER
AMP
IC350
STANDBY
SWITCH
Q902, 903
LEVEL
DETECT
Q301, 302
SPEAKER
+
–
–
–
+
R
L
J351
OVER LOAD
DETECT
Q150, 250
AUDUO IN
10
I-OVERCURRENT
S840
I/
1
_I_WAKEUP
28
(AC IN)
SUB POWER
TRANSFORMER
T002 (AEP, UK)
T004 (Australian)
T001
MAIN POWER
TRANSFORMER
RY001
F002
DAB +1.2V
D953, 954
+1.2V
REGULATOR
IC754
38
O-DAB-1.2V
39
O-DAB-3V
DAB +3.3V
+3.3V
REGULATOR
IC950
(UK)
(AEP, Australian)
(Page 12)
(Page 12)
Ver. 1.1
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