Main Section - Sony HCD-LF1 Service Manual

— MAIN SECTION —
V
C
Y/G
DVD DSP S
CB/B
SECTION
CR/R
I/P SW
WIDE
KEY 0 - 6
44, 46, 48,
2, 8, 10, 14
TOUCH
KEY
X401
12MHz
IC402
D+5V
+4.5V REG
?/1
Z
(TEST MODE)
AC-DET
+5V
UCOM -DO
IC302
BUFFER
TO SA-WSLF1
UCOM -DI
(SYSTEM CONNECTOR)
P.CONT1
A.MCON RESET
SIRCS
HCD-LF1
IC201
VIDEO AMP
CR/B
Cr out 16 4
CB/R
4 CVBS in Cb out 18 2
TO SA-WSLF1
Y/G (SYSTEM CONNECTOR)
2 C in CY out 20
C/CUBS
10 CY in CVBS out 23
12 Cb in C out 26
14 Cr in
IC301 (2/2)
9 I/P
SYSTEM CONTROLLER
25 S1
MUTE 2 13 95 V SW
MUTE 1 3 96 V MUTE
91 I/P SW
92 WIDE
IC401
TOUCH KEY DRIVER
31 - 29 50 - 52
SCI-0 QUA SI0
I I
SNS0K
SCI-2 QUA SI2
I
SNS3K
28 - 28 53 - 56
SNS6K
SCO-3 QUA SO3
I
I I
SNS8K
SCO-0 QUA SO0
38 OSC2
RST 35 57 QUA RST
37 OSC1 SYNC 33 8 QUA SYNC
RX 22 7 QUA-DO
36 VDD TX 21 6 QUA-DI
CRDY 23 60 QUA RDY
39 X1
X301
20MHz
38 X2
S401
82 KEY0
S402
83 KEY1
S301
84 KEY2
90 STOP
IC303 Q301
34 RESET
RESET RESET
UCOM-DI
100
2 6
1 UCOM-DO
5 3
45 STBY POWER
7 1
47 A.MCON RST
94 SIRCS
Q304, 305
93 WAKE
SWITCH
Q308, 309
SWITCH
T451
DC/DC CONVERTER
RECT
D451 - D454
FLG401
(FLUORESCENT INDICATOR TUBE)
24 VH (35V)
VF1
VF2
16 19 SDI
FL-DATA
17 20 CLK
FL-CLK
FL-LAT 14 21 LAT
FL-BK 15 22 BK
A+5V
A+5V
D464
Q464
LED 0 11
LED DRIVER D.C.S
D463
Q463
LED 1 12
LED DRIVER ; PRO LOGIC
D462
Q462
LED 2 18
LED DRIVER DTS
+3.3V
D461
Q461
LED 3 19
;
LED DRIVER DIGITAL
D472
Q472 +3.3V
LED 4 20
LED DRIVER DISC
+3.3V
D471
Q302, 303, 307
STBY LED 22
LED DRIVER ?/1
DVD POW 46
ZIVA-RST 4 SYS.RESET
M REQ 28 M REQ
R DVD DSP
SECTION
IIC-CLK 5 IIC-CLK
IIC-DATA 3 IIC-DATA
DF SEL 27 D-FIL-SELEXT
26
DF INIT D-FIL-INIT
AUDIO
M
SECTION
SW 1
37 37
IC101
AMP
6
7
FRONT-L
5
6.5V
3
1
2
FRONT-R
8
VCC
Q451, 452 IC102
OSC
AMP
6
SURROUND-L 7
5
N
3
1
2
AUDIO
SURROUND-R
SECTION
8
VCC
IC103
AMP
6
CENTER 7
5
3
1
2
SW(LFE)
+10V
8
VCC
IC902 IC901 Q003-Q005
+5V REG +10V REG SWITCH
IC907 IC905
+5V REG +10V REG
Q306
Q901
REG CONT
INVERTER
+12V
+5V 6.5V
Q911
IC392 IC904
REG CONT
+3.3V REG +5V REG
D+5V
IC907 IC906
+3.3V REG +5V REG
IC502
+3.3V REG
Q921
REG CONT
D+3.3V
IC803
+2.5V
+2.5V REG
IC211
+1.8V
+1.8V REG
HCD-LF1
FRONT-L
FRONT-R
SURROUND-L
TO
SA-WSLF1
(SYSTEM CONNECTOR)
SURROUND-R
CENTER
SW(LFE)
+12V
Q401,402
FAN
FAN
DRIVE
TH401
IC901
+12V REG
5 CONT
4 VREF IN 1 +15V TO
SA-WSLF1
GND
(SYSTEM CONNECTOR)
2 OUT
IC902
+6.5V REG
5 CONT
4 VREF IN 1
2 OUT
IC903
+3.3V REG
5 CONT
4 VREF IN 1
• SIGNAL PATH
: VIDEO
2 OUT
: COMPONENT VIDEO
: Y
: R.G.B
: CHROMA