Sony CMT-L1 / HCD-L1 Service Manual ▷ View online
41
41
HCD-L1
6-18. IC Block Diagrams
• WAVEFORMS
3.7Vp-p
5
IC500
ek
(X2)
1
IC101
us
(XTAO)
6
IC745
2
2
IC600
ek
(X2)
7
IC300
4
3
IC1401
2
8
Q1281 collector
4
IC500
eh
(XT2)
5.8 Vp-p
59 ns
1V/DIV,20ns/DIV
5.3 Vp-p
59 ns
31
µ
s
1V/DIV,20ns/DIV
1V/DIV,10
µ
s/DIV
1V/DIV,20ns/DIV
4.3 Vp-p
50 ns
1V/DIV,20ns/DIV
3.9 Vp-p
50 ns
2V/DIV,10ns/DIV
7.9 Vp-p
20 ns
20V/DIV,2
µ
s/DIV
73 Vp-p
3.8
µ
s
1V/DIV,40ns/DIV
81 ns
4.3 Vp-p
IC1362 SN74HC74ANNS-E05
– TOUCH SWITCH BOARD –
IC1400 PCM1748E/2K
– CD BOARD –
IC101 CXD3068Q
– BD BOARD –
IC103 CXA2581N-T4
CE
RFDC
ADIO
IGEN
ASYO
ASYI
RFAC
CLTV
FILO
FILI
PCO
BIAS
VCTL
V16M
VPCO
TE
ASYE
MD2
DOUT
DOUT
LRCK
PCMD
BCK
EMPH
XTSL
XTAI
XTAO
SOUT
SOCK
XOLT
SOCK
XOLT
SQSO
SQCK
SQCK
SCSY
SBSO
EXCK
EXCK
XRST
MUTE
DATA
XLAT
CLOK
SENS
SCLK
ATSK
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
CAM
WDCK
COUT
MIRR
SE
FE
VC
FE
VC
TES1
TEST
TEST
FFDR
TRDR
TFDR
SRDR
SFDR
FSTO
SSTP
LOCK
PWMI
PWMI
FOK
FRDR
MDP
DFCT
CLOCK
GENERATOR
ASYMMETRY
CORRECTOR
CORRECTOR
DIGITAL
PLL
CPU
INTERFACE
INTERFACE
CORRECTOR
PROCESSOR
SUB CODE
RAM
32K
DEMODURATOR
EFM
ERROR
D/A
DIGITAL
OUT
INTERFACE
SERVO
INTERFACE
SERVO
AUTO
MIRR
DFCT
DFCT
FOK
SERVO
FOCUS
SERVO DSP
SERVO
SERVO
SLED
TRACKING
FOCUS PWM
GENERATOR
GENERATOR
GENERATOR
GENERATOR
SLED PWM
TRACKING PWM
A/D
CONVERTER
OPAMP
ANALOG SW
PWM GENERATOR
DIGITAL
CLV
SERVO BLOCK
RW/ROM
RW/ROM
EQ ON/OFF
VOFST
VOFST
DVC
VC
VC
VC
RW/ROM
VC
DVC
30
29
28
+
–
+
–
DVC
VCC
DVC
27
26
25
24
RW/ROM
EQ
23
22
21
20
19
RFAC
VCA
VCC
+
–
DVC
+
–
+
–
RW/ROM
VC
RW/ROM
DVC
+
–
3
A
B
C
D
B
C
C
A
A
A
B
C
C
D
B
C D
D
+
–
1
2
APC AMP
5
6
7
8
9
4
RFAC
SUMMING
AMP
RW/ROM
APC-OFF
(Hi-Z)
RW/ROM
(H/L)
VOFST
VC
RW/ROM
+
–
10
11
GM
GM
18
17
16
B
D
A
C
13
14
15
12
EQ IN
LD
PD
GND
A
B
C
D
AC SUM
E
F
DVCC
DVC
RFAC
SW
DC OFST
RFDCI
RFDCO
VC
RFC
VFC
BST
RFG
VCC
CEI
CE
TE BAL
TE
FEI
FE
1
3
2
15
14
13
12
11
11
5
4
6
9
8
10
7
16
ROUT
LOUT
VCC
VDD
DGND
LRCK
DATA
BCK
Serial
Input
Power
System Clock
System Clock
I/F
Zero Detect
DAC
DAC
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Control
Function
Manager
8x Oversampling Digital Filter
with Function Controller
Enhanced Multi-Level
Deita-Sigma Modurator
Supply
I/F
MCLK
LAT
CLK
DATA
DATA
DZFL
DZFR
VCOM
AGND
14
1
2 3
4
5
6
7
13 12 11
10
9
8
VCC
GND
CK
CLR
CK
CLR
Q
PR
Q
Q
PR
Q
D
D
42
42
HCD-L1
6-19. Printed Wiring Board DISPLAY Section
• See page 25 for Circuit Boards Location.
Ref. No.
Location
D1281
A-3
D1282
A-3
D1283
A-3
D1284
A-3
D1285
A-3
IC1201
A-6
Q1201
A-8
Q1281
A-1
Q1282
A-1
• Semiconductor
Location
(Page 34)
IC1201
43
43
HCD-L1
6-20. Schematic Diagram DISPLAY Section
• See page 41 for Wavefoms.
(Page 37)
44
44
HCD-L1
6-21. Printed Wiring Board SWITCH Section
• See page 25 for Circuit Boards Location.
Ref. No.
Location
D1311
D-5
D1321
E-9
D1322
E-9
D1323
E-9
D1326
E-9
D1361
B-4
D1362
B-4
D1363
B-5
D1364
B-5
D1381
A-9
D1382
A-9
D1391
A-1
D1392
A-1
IC1351
B-3
IC1361
A-5
IC1362
A-6
Q1361
A-6
• Semiconductor
Location
1
2
A
B
C
D
E
F
3
4
5
6
7
8
9
10
/
(Page 34)
(Page 38)
IC1351
IC1361
IC1362
g
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