Sony HCD-ZTX7 / LBT-ZTX7 Service Manual ▷ View online
61
61
HCD-ZTX7
HCD-ZTX7
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
6-30. SCHEMATIC DIAGRAM — TC BOARD —
• Refer to page 64 IC Block Diagrams.
Q
MAIN BOARD
(4/4)
CN102
(Page 47)
TC BOARD
6.8k
R408
ISA1235AC1TP-1EF
Q407
2SC3052EF-T1-LEF
Q403
100
R325
0
R462
47k
R403
50V
10
C409
560p
C414
2SC3052EF-T1-LEF
Q401
RT1N431C-TP-1
Q410
4.7k
R453
22
R456
56p
C412
50V
22
C317
10k
R323
0.01
C417
10
R428
0.01
C433
4.7k
R308
0
JR316
560p
C413
22k
R457
0.1
C352
10k
R451
220
R312
0.1
C354
100
R326
4700p
C466
KTC3203Y-AT
Q453
470p
C462
2.2k
R484
1k
R431
10p
C411
56p
C405
2SC3052EF-T1-LEF
Q402
1
2
3
4
5
6
7
8
9
10
11
11P
CN410
+9V
TC BIAS GND
TC BIAS GND
REC BIAS
REC-MUTE
TC RELAY
REC-L
REC-R
A-GND
PB-R
PB-L
4.7k
R454
100k
R443
10k
R436
47p
C315
ISA1235AC1TP-1EF
Q406
16V
220
C350
2SC3052EF-T1-LEF
Q404
100k
R424
0
R459
6.8k
R319
560k
R411
10k
R435
470
R310
4.7k
R307
2SC3052EF-T1-LEF
Q454
D301
MAZ8043GMLS0
47k
R434
0.01
C418
1k
R351
470k
R413
KTA1271Y-AT
Q455
22
R449
56p
C406
ISA1235AC1TP-1EF
Q405
50V
0.1
C401
220
R311
0
R461
4.7
R458
50V
0.1
C402
220p
C328
6.8k
R407
10k
R440
2.2k
R437
47p
C316
10k
R481
47k
R405
R320
6.8k
0.001
C453
47k
R406
22
R450
47k
R401
0
R487
0.068
C330
16V
47
C452
MC2838-T112-1
D401
47p
C404
10k
R324
2.2k
R438
6800p
C324
1
2
3
4
5
6
7
8
CN400
8P
EH+
EH-
GND
REC-R
PB-R
PB-L
REC-L
GND
0.1
C353
0.068
C329
0
JR315
10V
220
C351
1k
R432
10
R427
470k
R317
50V
22
C318
470k
R318
470
R309
6800p
C323
10k
R464
6800p
C454
6
2
1
3
5
4
T001
BIAS OSCILLATION
TRANSFORMER
47
R313
RT1N141C-TP-1
Q409
47k
R433
100
R349
10k
R444
10k
R430
470k
R414
47k
R482
470p
C461
10
R455
47k
R402
2SC3052EF-T1-LEF
Q408
10k
R429
47k
R442
50V
10
C410
47
R314
0.01
C456
10k
R463
4700p
C416
560k
R412
0.01
C355
47k
R452
220p
C327
0.1
C430
0
R350
100k
R423
47k
R404
50V
10
C356
47p
C403
100
R316
100
R315
1000p
C303
47k
R303
1000p
C304
47k
R304
100k
R400
100k
R409
876
5
4
3
2
1
NJM4558M-TE2
IC301
O/P(1)
V-(1)
V+(1)
GND
V+(2)
V-(2)
O/P(2)
VCC
876
5
4
3
2
1
NJM4558M-TE2
IC401
O/P(1)
V-(1)
V+(1)
GND
V+(2)
REC EQ
V-(2)
O/P(2)
VCC
ISA1235AC1TP-1EF
Q456
ISA1235AC1TP-1EF
Q113
R439
0
+
-
+
R-CH
HRPE901
REC/PB/ERASE
HEAD
(REC/PB)
L-CH
(REC/PB)
(ERASE)
-
+
-
REC-L
PB-L
PB-R
REC-L
REC-R
LOW
IC401
IC301
PB AMP
MUTE SWITCH
MUTE SWITCH
MUTE SWITCH
SWITCH
REC MUTE
SWITCH
BIAS OSC
REC MUTE
Q401-Q404
SWITCH
INVERTER
SWITCH
SWITCH
IC B/D
IC B/D
4.0
4.0
4.0
0.7
0
0
0
3.1
7.7
0
(0.7)0
9.1(0)
0.3(5)
0.3(0.8)
0(0.2)
0.3(8.6)
9.1(7.9)
(8.6)9.1
3.5(4.2)
3.5 (4.2)
4.0
0 (-10.5)
0 (-3.6)
4.0
0 (-10.5)
4.0
0 (-10.5)
0 (-10.5)
0
0 (-10.5)
0.1
0
4.2
4.2
4.2
4.2
0.1
0.1
0 (-10.5)
4.0
4.0
3.5
(4.2)
(4.2)
7.7
4.0
4.0
4.0
4.0
4.0
4.0
7.7
4.0
4.0
4.0
62
62
HCD-ZTX7
HCD-ZTX7
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
6-31. PRINTED WIRING BOARDS — METER DISPLAY BOARD — • Refer to page 30 for Circuit Boards Location.
R031
TP40
TP41
1
2
CN031
S031
11
(11)
1
2
10
11
4
2
13
1
2
4
1
CN001
CN002
CN003
CN004
C001
JW005
JW006
6
10
5
1
C002
IC001
TP01
TP02
TP03
TP04
TP05
TP06
TP07
TP08
TP09
TP10
TP11
TP12
TP13
TP14
TP15
TP16
TP17
TP18
TP19
TP20
TP21
R005
R006
R007
R008
PANEL FUNCTION
BOARD
CN981
(Page 50)
METER DISPLAY BOARD
METER DISPLAY SW BOARD
METER DISPLAY LED BOARD
1
4
CN01
1
D011
D012
D013
D014
JR101
JR102
JR103
JR104
TP50
TP51
TP52
TP53
R010
R01
1
R012
R013
R014
R015
R016
R017
1-876-779-
1-876-778-
1-876-777-
V
11
(11)
11
(11)
• Semiconductor Location
Ref. No.
Location
D011
D012
D013
D014
D012
D013
D014
IC001
E-10
B-12
E-13
E-12
B-12
E-13
E-12
D-4
63
63
HCD-ZTX7
HCD-ZTX7
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
6-32. SCHEMATIC DIAGRAM — METER DISPLAY BOARD —
• Refer to page 64 IC Block Diagrams.
560
R013
R012 560
560
R015
R014 560
1
2
3
4
4P
CN011
SEL A/LED +9V
SEL B/LED METER RED
METER LED CTRL/LED METER WHITE
GND
SEL
T2W
A10C-2LF62
D012
SEL
T2W
A10C-2LF62
D013
SEL
T2W
A10C-2LF62
D01
1
1L434FV22D0TDE01
D014
TP50
TP51
TP52
TP53
JR011
0
JR012
0
JR013
0
JR020
0
0
JR019
560
R010
560
R01
1
820
R016
820
R017
1
2
2P
CN031
SW
DGND
S031
10k
R031
TP40
TP41
0.1
C002
R005
10k
R006
10k
R007
10k
R008 10k
16V
47
C001
1
2
3
4
5
6
7
8
9
10
11
11P
CN001
M+5V
IND4
IND3
IND1
IND2
MGND
METER SW
DGND
METER LED CTRL/LED METER RED
SEL B/LED+9V
SEL A/LED WHITE +9V
1
2
2P
CN004
METER SW
DGND
1
2
3
4
4P
CN002
OUT3
OUT2
OUT1
OUT4
10
9876
5
4
3
2
1
LB1846M
IC001
VCC
IND4
IND3
IND1
IND2
GND
OUT2
OUT1
OUT3
OUT4
1
2
3
4
4P
CN003
SEL A/LED WHITE +9V
SEL B/LED +9V
METER LED CTRL/LED METER RED
DGND
JW002
JW004
TP01
TP02
TP03
TP04
TP05
TP06
TP07
TP08
TP09
TP10
TP11
TP17
TP16
TP12
TP13
TP14
TP15
TP19
TP20
TP21
TP18
METER DISPLAY BOARD
METER DISPLAY
SW BOARD
METER DISPLAY
LED BOARD
MOTOR DRIVE
IC001
V
PANEL FUNCTION
BOARD
CN981
(Page 51)
IC B/D
5.1
0
0
0
0
0.4
0.3
0.3
0.3
64
64
HCD-ZTX7
HCD-ZTX7
• IC Block Diagrams
IC501 AK5358AET-E2 (BD93 Board)
IC401 BA5826SFP-E2 (BD93 Board)
Decimation
Filter
Voltage
Reference
Serial I/O
Interface
Clock
Divider
Decimation
Filter
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
AINR
AINL
CKS1
VCOM
SDTO
LRCK
MCLK
SCLK
PDN
DIF
CKS2
CKS0
AGND
VA
VD
DGND
G
·
Modulator
G
·
Modulator
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
MONITOR
LEVEL
SHIFT
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
SLIN
(SLIN)
VREF
VCC
VCC
(FIN)
FIN
F–
F+
SL–
SL+
NC
OPIN
SP–
REG–B
SP+
SPIN
RST
REGO
MUTE
GND
TIN
(TIN)
T–
T+
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULA
TOR
DRIVER
MUTE
VCC
VCC
IC502 TC74VHC157FT(EKJ) (BD93 Board)
IC200 TC74VHC157FT(EKJ) (MAIN Board)
IC200 TC74VHC157FT(EKJ) (MAIN Board)
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
IC201 TK63115SCL-G@GT (BD93 Board)
VIN 1
GND 2
VOUT
3
V REF
ON/OFF
CONTROL
THERMAL &
OVER CURRENT
PROTECTION
VCONT
5
4 NC
IC701 BA6956AN (DRIVER Board)
IC712 BA6956AN (DRIVER Board)
IC712 BA6956AN (DRIVER Board)
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
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