DOWNLOAD Sony CX-JT8 / JAX-PK8 / JAX-T8 Service Manual ↓ Size: 8.47 MB | Pages: 88 in PDF or view online for FREE

Model
CX-JT8 JAX-PK8 JAX-T8
Pages
88
Size
8.47 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cx-jt8-jax-pk8-jax-t8.pdf
Date
PREV: Sony JAX-PK8 / JAX-T8 Service Manual

Sony CX-JT8 / JAX-PK8 / JAX-T8 Service Manual ▷ View online

53
CX-JT8
– DRIVER Board –
IC701, 712
BA6956AN
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
O
UT2
O
UT1
RNF
VM
VCC
FIN
GND
RIN
– MAIN Board –
IC201
HA12237F
31
PB-NF1 (L)
32
AIN (L)
33
RIP
34
BIN (L)
35
REC-RETURN
36
GND
37
BIN (R)
38
NC
39
AIN (R)
40
PB-NF1 (R)
1
PB-NF2 (R)
2
PB-EQ (R)
3
EQOUT (R)
4
TAI (R)
5
PBOUT (R)
6
NC
7
RECIN (R)
8
ALC (R)
9
NC
10
RECOUT (R)
15 REC MUTE OFF/ON
14 MUTE ON/OFF
13
A/B
(REC RETURN ON/OFF)
12 HIGH/NORM
11 ALC ON/OFF
30
PB-NF2 (L)
29
PB-EQ (L)
28
EQOUT (L)
27
TAI (L)
26
PBOUT (L)
25
NC
24
RECIN (L)
23
ALC (L)
22
NC
21
RECOUT (L)
EQ
ALC
19 IREF
18 GND
17 ALC DET
EQ
20 TEST MODE
16 VCC
93/120
(HIGH/NORM)
MUTE
A
B
A
B
RETURN SW
RETURN SW
93/120
(HIGH/NORM)
MUTE
54
CX-JT8
IC303
NJM2156M (TE2)
– PANEL Board –
IC501
MM1614A
2
5
VIN
4
VOUT
GND
1
CONT
3
NOISE
DRIVER
THERMAL
SHUTDOWN
BIAS
REFERENCE
+
–
CURRENT
LIMITTER
BBE
BIAS
MACH3
19 18
HOUTB
HINB
20
INB
17 16
LOUTB
LINB
13
GIN
12
GOUT
11
GND
+
+
15
OUTB
BBE
2
3
HOUTA
HINA
1
INA
4
5
LOUTA
LINA
8
LPOUT
9
LPIN
10
+
6
OUTA
7
BBE
14
VREF
IC301
M61529FP-D60G
1
REF
2
MIC
3
INA1
REF
EXTERNAL
INPUT ATT
INPUT
ATT
4
INB1
5
INC1
6
IND1
7
RECA1/INEX1
8
RECB1
9
TMI1
10
TMO1
11
TCA1
12
TCB1
13
TCC1
14
TOUT1
16
BB A1
17
BB B1
15
VOLIN1
VOCAL
CUT
TONE ATT
+
TONE CONTROL
(BASS/MID/TREBLE)
ELECTRICAL
VOLUME
18
OUT1
19
SAOUT
20
VCC
BASS
BOOST
21
DATA
MCU
INTERFACE
42
SUR1/DPL1
41
SUR2/DPL2
40
INA2
INPUT
ATT
39
INB2
38
INC2
37
IND2
36
RECA1/INEX2
35
RECB2
34
TMI2
33
TMO2
32
TCA2
31
TCB2
30
TCC2
29
TOUT2
27
BB A2
26
BB B2
28
VOLIN2
+
TONE ATT
TONE CONTROL
(BASS/MID/TREBLE)
ELECTRICAL
VOLUME
25
OUT2
24
SWOUT
23
GND
BASS
BOOST
22
CLOCK
+
SURROUND
OR
DPL BUFFER
+
55
CX-JT8
6-31.
IC  PIN  FUNCTION  DESCRIPTION
•
  MAIN BOARD  IC309 BU2099FV (MULTI CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground terminal
2
NC
—
Not used
3
DATA
I
Serial data input from the tape mechanism controller
4
CLOCK
I
Serial data transfer clock signal input from the system controller
5
LCK
I
Serial data latch pulse clock signal input from the system controller
6
REC
O
Recording on/off control signal output terminal    “L”: recording
7
BIAS
O
Recording bias on/off control signal output terminal    “L”: bias on
8
A/B
O
Deck-A/B selection signal output to the deck-A/B select switch    “L”: deck-B, “H”: deck-A
9
PB MUTE
O
Playback muting on/off control signal output to the recording/playback equalizer amplifier
“H”: muting on
10
REC MUTE
O
Recording muting on/off control signal output to the recording/playback equalizer amplifier
“L”: muting on
11
TUNER MUTE
O
Tuner muting on/off control signal output  to the tuner unit    “H”: muting on
12
LM-R (CD)
O
Loading motor drive signal output terminal
13
LM-L (CD)
O
Loading motor drive signal output terminal
14
TM-R (CD)
O
Table motor drive signal output terminal
15
TM-L (CD)
O
Table motor drive signal output terminal
16
FRONT SPON/OFF
O
Front speaker on/off relay drive control signal output terminal    “L”: front speaker on
17
REAR SPON/OFF
O
Surround speaker on/off relay drive control signal output terminal    “H”: surround speaker on
18
SO
O
Serial data output to the bass boost controller
19
OE
—
Not used
20
VDD
—
Power supply terminal (+3.3V)
56
CX-JT8
•
  MAIN BOARD  IC310 BU2099FV ( BASS BOOST CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground terminal
2
NC
—
Not used
3
DATA
I
Serial data input from the multi controller
4
CLOCK
I
Serial data transfer clock signal input from the system controller
5
LCK
I
Serial data latch pulse clock signal input from the system controller
6 to 8
NC
—
Not used
9
I-BASS
O
Bass boost on/off control signal output terminal    “L”: bass boost on
10 to 12
CTRL3 to CTRL1
O
Frequency control signal output terminal
13
BB CTRL4
O
Bass boost control signal output terminal    “H”: bass boost +10dB
14
BB CTRL3
O
Bass boost control signal output terminal    “H”: bass boost +8dB
15
BB CTRL2
O
Bass boost control signal output terminal    “H”: bass boost +6dB
16
BB CTRL1
O
Bass boost control signal output terminal    “H”: bass boost +5dB
17
NC
—
Not used
18
SO
O
Serial data output terminal    Not used
19
OE
—
Not used
20
VDD
—
Power supply terminal (+3.3V)
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