Sony HCD-ZT4 / LBT-ZT4 Service Manual ▷ View online
HCD-ZT4
HCD-ZT4
49
49
7-30. SCHEMATIC DIAGRAM - TRANS2 Board -
NO468
S
(2/4)
BOARD
BOARD
MAIN
E
(2/2)
NO801
POWERAMP
0.1
0.7
-38.3
-32
-32.6
250V
F904
T6.3AL
250V
F905
T6.3AL
250V
F908
T8AL
250V
F909
T8AL
250V
F906
T3.15AL
1/2W
3.3M
R951
50V
10
C909
C911
10k
R952
1k
R904
0.1
C907
JW917
JW907
JW902
JW910
63V
220
C908
35V
100
C910
2SB1238-PQR-TV2
Q902
4.7k
R915
JL901
JL904
JL906
JL907
JL914
JL915
JL916
JL919
JL920
JL921
JL923
JL924
JL926
PT902
5
2
1
6
4
7
3
22k
1000
16V
R912
R908
1N4002-E5
D908
MC2837
D912
MC2837
D911
6P
CN903
MA2J1
110GLS0
D901
MAZ8330GMLS0
D906
11P
CN907
JW933
JW932
JW906
RY901
1
3
3P
CN901
LIVE
NEUTRAL
JL927
JL928
JL929
JL930
JL931
JL932
JL933
JL934
JL935
JL936
250V
F907
T2AL
22
R910
0
R911
100k
R914
0.1
C926
JW903
C925
1
TRANS2 BOARD
W901
(CHASSIS)
(AC IN)
SUB POWER
TRANSFORMER
PT901
MAIN POWER
TRANSFORMER
-32V REGULATOR
NOT REPLACEABLE:
BUILT IN TRANSFORMER
D
5
10
2
A
7
4
8
1
3
C
9
6
B
E
11
12
0.68
1
2
3
4
5
6
AC-VH
AC-VL
GND
GND
AC-VL
AC-VH
5
6
7
8
9
1
3
4
2
16
17
12
14
13
18
15
10
11
8
9
19
∗
∗
AC4
AC4
AC3
AC3
VF
VF
-VFL
DGND
EVER10V
STBY RELAY
AC CUT DETECT
1
2
3
4
5
6
7
8
9
10
11
2SC3052EF-T1-LEF
Q903
RELAY DRIVE
(Page 41)
(Page 37)
HCD-ZT4
HCD-ZT4
50
50
• IC Block Diagrams
– CD Board –
IC201 TK63115SCL-G@GT
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
REFERENCE
ON/OFF
CONTROL
VIN 1
GND 2
VCONT 3
NC
4
VOUT
5
+
–
IC401 BA5826SFP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VO3(+)
VO3(–)
VO4(–)
VO4(+)
RESETt
OPIN
VO1(–)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VO2(–)
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULA
TOR
VCC
VCC
IC501 AK5358AET-E2
MODULATOR
DECIMATION
FILTER
1
AINR
AINL
CKS1
VCOM
AGND
VA
VD
DGND
CKSO
CKS2
DIF
PDN
SCLK
MCLK
LRCK
SDTO
MODULATOR
DECIMATION
FILTER
SERIAL I/O
INTERFACE
CLOCK
DIVIDER
2
VOLTAGE
REFERENCE
4
3
5
6
8
7
16
15
13
14
12
11
9
10
IC502 TC74VHC157FT (EKJ)
SELECT 11
1
1A 2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
– USB Board –
IC915 R5523N001B-TR-F
1
EN
2
GND
3
FLG
4 IN
5 OUT
GATE
CONTROL
UVLO
THERMAL
SHUTDOWN
CURRENT
LIMIT
FLAG
DELAY
– MAIN Board –
IC407 R2A15216FP
INDR
6 INPUT
SELECTOR
(R-CH)
INER
INFR
GAMER
INGAINOUTR
RECAR
INCR
INBR
INAR
DPLR/SURR
DPLL/SURL
TRER
TONE
R
(TRE,
MID,
BASS)
MID1R
MID2R
MID2R
BASS1R
BASS2R
BASS2R
VOCAL CUT
REFERENCE
SURROUND OR DPL IN
RECBR
+
+
+
+
SA1
SA2
+
TO
N
EO
U
TR
BB1R
DA
TA
CLK
AGCC
OUTR
AGCOUTR
SWOUT
BB2R
VOLINR
ELECTRICAL
VOLUME
MCU
INTERFACE
AUTO
GAIN
CONTROL
+
INDL
6 INPUT
SELECTOR
(L-CH)
INEL
INFL
INFL
GAMEL
INGAINOUTL
RECAL
INGAINOUTL
RECAL
INAL
INBL
INCL
MIC
VC
TREL
TONE
L
(TRE,
MID,
BASS)
MID1L
MID2L
BASS1L
BASS2L
MID2L
BASS1L
BASS2L
RECBL
+
+
+
TONEOUTL
BB1L
OUTL
AGCOUTL
BB2L
VOLINL
ELECTRICAL
VOLUME
REFIN
REFOUT
VCC
GND
1
2
3
2
3
4
5
6
5
6
10
11
12
13
14
11
12
13
14
7
8
8
9
15
17
21 22
24
19
20
23
18
16
28
26
25
27
42
41
40
41
40
39
38
37
38
37
35
34
33
32
31
34
33
32
31
36
30
29
54
55
52
53
56
43
44
45
46
47
48
49
50
51
IC670, 672 TC74HC4066AFT (EL)
1I/O
VCC
1
14
1C
13
4C
12
4I/O
11
4O/I
10
1O/I 2
2O/I 3
2I/O 4
2C 5
3C 6
GND 7
3O/I
9
3I/O
8
IC673 TC74VHC157FT (EKJ)
SELECT 11
1
1A 2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
HCD-ZT4
51
– 5V REG Board –
IC055 BA00BC0WCP-V5E2
THERMAL
SHUT DOWN
OVER CURRENT
PROTECT
VDD
VCC
2
GND
3
NC
5
OUT
4
CTL
1
–
+
VREF
DRIVER
– DISPLAY Board –
IC1101 NJU3427FH2
6
7
8
9
7
8
9
15 16 17 18 19 20
21 22 23 24 25 26
27
28
29
30
31
32
33
34
35
36
37
38
39
52
1
NC
RD4
RD5
RD6
RD7
RD5
RD6
RD7
DR12
DR13
DR14
DR15
DR16
DR17
DR18
DR19
DR20
DR21
DR22
DR23
DR35
DR34
DR33
DR32
DR31
DR30
DR29
DR28
DR27
DR26
DR25
DR24
DR34
DR33
DR32
DR31
DR30
DR29
DR28
DR27
DR26
DR25
DR24
NC
RST
TIMING/SEGMENT SELECTOR
HIGH VOLTAGE DRIVER
ADDRESS
COUNTER
DISPLAY
DATA RAM
SEGMENT
DATA LATCH
INSTRUCTION
DECODER
SERIAL
BUFFER
RESET
CIRCUIT
OSC
TIMING
COUNTER
DUTY
COUNTER
TIMING
DECODER
51
CS
50
NC
49
SI
48
SCK
47
NC
46
XT
45
XT
44
VSS
43
NC
42
VDD
41
NC
40
VFDP
14
NC
2
3
4
5
3
4
5
RD0
RD1
RD2
RD3
RD1
RD2
RD3
10
11
12
13
11
12
13
RD8
RD9
RD9
RD10
RD11
THERMAL SHUTDOWN CIRCUIT
IN4
IN3
IN1
2
3
VCC 1
4
IN2 5
OUT4
OUT3
OUT1
10
9
8
OUT2
7
GND
6
CONTROL
LOGIC
MOTOR
DRIVE
– MOTOR DRIVE Board –
IC001 LB1846M
HCD-ZT4
52
• IC Pin Function Description
CD BOARD IC101 TC94A70FG-101 (CD-MP3 PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
AVSS3
-
Ground terminal
2
RFZi
I
RF ripple zero crossing signal input terminal
3
RFRP
O
RF ripple signal output terminal
4
SBAD/RFDC
O
Sub beam addition signal or RF peak detection signal output terminal Not used
5
FEi
O
Focus error signal output terminal Not used
6
TEi
O
Tracking error signal output terminal
7
TEZi
I
Tracking error zero crossing signal input terminal
8
AVDD3
-
Power supply terminal (+3.3 V)
9
FOo
O
Focus coil drive signal output terminal
10
TRo
O
Tracking coil drive signal output terminal
11
VREF
I
Reference voltage (+1.65V) input terminal
12
FMO
O
Sled motor drive signal output terminal
13
DMO
O
Spindle motor drive signal output terminal
14
VSSP3
-
Ground terminal
15
VCOi
I
VCO control voltage input terminal
16
VDDP3
-
Power supply terminal (+3.3 V)
17
VDD1
-
Power supply terminal (+1.5 V)
18
VSS1
-
Ground terminal
19
FGiN
I
FG signal input terminal Not used
20
IO0 (/HSO)
I
Disc inner position detection signal input terminal
21
IO1 (/UHSO)
O
Not used
22
XVSS3
-
Ground terminal
23
XI
I
System clock input terminal (16.9344 MHz)
24
XO
O
System clock output terminal (16.9344 MHz)
25
XVDD3
-
Power supply terminal (+3.3 V)
26
DVSS3
-
Ground terminal
27
RO
O
Analog audio (R-ch) signal output terminal
28
DVDD3
-
Power supply terminal (+3.3 V)
29
DVR
O
Reference voltage (+1.65V) output terminal
30
LO
O
Analog audio (L-ch) signal output terminal
31
DVSS3
-
Ground terminal
32
VDDT3
-
Power supply terminal (+3.3 V)
33
VSS1
-
Ground terminal
34
VDD1
-
Power supply terminal (+1.5 V)
35
VDDM1
-
Power supply terminal (+1.5 V)
36
SRAMSTB
I
S-RAM standby mode control signal input terminal Fixed at “L” in this set
37
XRST
I
Reset signal input from the system controller “L”: reset
38, 39
BUS0, BUS1
I
Serial data input from the system controller or USB controller
40
BUS2 (SO)
I
Serial data input from the system controller or USB controller
41
BUS3 (SI)
I
Serial data input from the system controller or USB controller
42
BUCK (CLK)
I
Serial data transfer clock signal input from the system controller or USB controller
43
XCCE
I
Chip enable signal input from the system controller or USB controller
44
TEST
I
Setting terminal for test mode Normally fi xed at “L”
45
IRQ
I
Interrupt request signal input terminal
46
AoUT3 (PO4)
O
Clock siganl output to the A/D converter
47
AoUT2 (PO5)
O
Audio data output to the USB controller
48
PIO0
O
Request signal output to the system controller or USB controller
49
PIO1
O
Request signal output to the USB controller
50
PIO2
O
Data selection signal output to the data selector/reset signal output to the A/D converter
51
PIO3
I
Gate signal input from the USB controller
52
VSS1
-
Ground terminal
53
VDDT3
-
Power supply terminal (+3.3 V)
54
SBSY
O
Subcode block sync signal output to the system controller
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