Sony CDX-T6NV Service Manual ▷ View online
30
CDX-T6NV
5-12.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC301 MB90473PFV-G-134-BNDE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1, 2
RAMA5, RAMA6
O
Address signal output to the S-RAM Not used
3
ELVR
O
Motor drive signal (elevator down direction) output to the elevator motor drive “L” active
4
ELVF
O
Motor drive signal (elevator up direction) output to the elevator motor drive “L” active
5
LOADF
O
Motor drive signal (load chucking direction) output to the chucking motor drive “L” active
6
LOADR
O
Motor drive signal (save direction) output to the chucking motor drive “L” active
7, 8
RAMA7, RAMA12
O
Address signal output to the S-RAM Not used
9
VSS
—
Ground terminal
10
RAMA14
O
Address signal output to the S-RAM Not used
11
RAMWE
O
Write enable output to the S-RAM Not used
12 to15
RAMA13, RAMA8,
RAMA9, RAMA11
O
Address signal output to the S-RAM Not used
16
UNI SI
I
Serial data input from the SONY bus interface
17
UNI SO
O
Serial data output to the SONY bus interface
18
UNI CK
I
Serial data transfer clock signal input from the SONY bus interface
19
LEDDAT
O
Not used
20
LEDCLK
O
Not used
21
VCC
—
Power supply terminal
22
LEDLAT
O
Not used
23
CDON
O
Power supply on/off control signal output terminal “H”: power on Not used
24
ELVON
O
Mechanism deck section power supply on/off control signal output “H”: power on
25
RX
I
Input terminal at the flash memory data write mode Not used
26
TX
O
Output terminal at the flash memory data write mode Not used
27
NC
O
Not used
28
EECLK
O
Serial data transfer clock signal output to the EEPROM Not used
29
FL BOOT
I
Flash memory data write control signal input terminal “L” active Not used
30, 31
NC
O
Not used
32
EEDAT
I/O
Two-way data bus with the EEPROM Not used
33
AVCC
—
Power supply terminal (for A/D converter)
34
AVRH
I
Reference voltage input terminal (for A/D converter)
35
AVSS
—
Ground terminal (for A/D converter)
36
EHS
I
Elevator height position detection signal input from the elevator height sensor (A/D input)
37
MCK
I
Input of detection signal for the fine adjustment (elevator height (address) adjustment) of elevator
height position (A/D input)
height position (A/D input)
38, 39
KEY0, KEY1
I
Not used
40
VSS
—
Ground terminal
41
FOK
I
Focus OK signal input from the DSP “L”: NG, “H”: OK
42
GFS
I
Guard frame sync signal input from the DSP “L”: NG, “H”: OK
43
SCLK
O
Serial data reading clock signal output to the DSP
44
SENS
I
Internal status signal (sense signal) input from the DSP
45
BUSON
I
Bus on/off control signal input from the SONY bus interface “H”: bus on
46
BUCHK
I
Battery detection signal input “L”: battery on
47, 48
MD0, MD1
I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
49
MD2
I
Setting terminal for the CPU operational mode (fixed at “L” in this set)
50
EJECT SW
I
Eject switch input terminal “L” active
51
MAGLK SW
I
Magazine in/out detect switch input terminal “L”: magazine in/out operation
52
SCOR
I
Subcode sync (S0+S1) detection signal input from the DSP
53
GRSCOR
I
Subcode sync (S0+S1) detection signal input terminal Not used
31
CDX-T6NV
Pin No.
Pin Name
I/O
Description
54
NC
O
Not used
55
HS
O
Normal/high speed playback control signal output terminal “L”: high speed playback
Not used
Not used
56
SQSO
I
Subcode Q data input from the DSP
57
NC
O
Not used
58
SQCK
O
Subcode Q data reading clock signal output to the DSP
59
CDCLK
O
Serial data transfer clock signal output to the DSP
60
CDLAT
O
Serial data latch pulse signal output to the DSP
61
CDDAT
O
Serial data output to the DSP
62
XRST
O
System reset signal output to the DSP “L”: reset
63
XQOK
O
Subcode Q OK pulse signal output terminal Not used
64
XRDE
O
D-RAM read enable signal output terminal Not used
65
XWRE
O
D-RAM write enable signal output terminal Not used
66
EMPH
O
Emphasis control signal output to the DSP “H”: emphasis on
67
MUTE
O
Audio line muting on/off control signal output “H”: muting on
68
RAMA10
O
Address signal output to the S-RAM Not used
69
RAMCS
O
Chip select enable output to the S-RAM Not used
70 to 74
RAMIO7 to
RAMIO3
I/O
Two-way data bus with the S-RAM Not used
75
RESET
I
System reset signal input from the SONY bus interface and reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
76
RAMIO2
I/O
Two-way data bus with the S-RAM Not used
77
X1A
O
Sub system clock output terminal Not used
78
X0A
I
Sub system clock input terminal Not used
79
VSS
—
Ground terminal
80
X0
I
Main system clock input terminal (4 MHz)
81
X1
O
Main system clock output terminal (4 MHz)
82
VCC
—
Power supply terminal
83, 84
RAMIO1, RAMIO0
I/O
Two-way data bus with the S-RAM Not used
85 to 88
RAMA0 to RAMA3
O
Address signal output to the S-RAM Not used
89
SINGLE
I
Setting terminal for the single disc/multiple discs mode
“L”: single disc mode, “H”: multiple discs mode (fixed at “H” in this set)
“L”: single disc mode, “H”: multiple discs mode (fixed at “H” in this set)
90
6/10 SEL
I
Setting terminal for the 6 discs changer/10 discs changer model
“L”: 10 discs changer model, “H”: 6 discs changer model (fixed at “H” in this set)
“L”: 10 discs changer model, “H”: 6 discs changer model (fixed at “H” in this set)
91
CFSEL
I
Custom file on/off setting terminal “L”: custom file on Not used
92
TEXTSEL
I
CD text mode setting terminal
“L”: CD text on, “H”: does not display track name Not used
“L”: CD text on, “H”: does not display track name Not used
93
ESPSEL
I
ESP mode setting terminal “L”: ESP on Not used
94
TEST
I
Test on/off setting terminal “L”: test mode Not used
95
MAG SW
I
Magazine detect switch input terminal “L”: magazine is set
96
SAVE SW
I
Chucking end detect switch input terminal
“L”: When completion of the disc chucking, loading or save operation
“L”: When completion of the disc chucking, loading or save operation
97
LOAD SW
I
Chucking end detect switch input terminal
“L”: When completion of the disc chucking, loading or save operation
“L”: When completion of the disc chucking, loading or save operation
98
LIM SW
I
Sled limit in detect switch input terminal
“L”: When the optical pick-up is inner position
“L”: When the optical pick-up is inner position
99
RW SEL
O
CD-ROM/RW selection signal output “L”: CD-RW, “H”: CD-ROM
100
RAMA4
O
Address signal output to the S-RAM Not used
32
CDX-T6NV
2
1
3
4
4
9
8
23
7
6
19
22
18
13
17
16
11
10
10
21
12
13
13
14
15
8
20
20
5
#1
#1
#1
#1
MG-276A-159
RV301
not supplied
6-1. CASE SECTION
SECTION 6
EXPLODED VIEWS
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories are given in the last of the elec-
trical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-225-801-11 DOOR (S)
2
3-225-802-11 BUCKLE (S)
3
X-3382-484-1 PANEL ASSY, F/P
4
3-047-886-11 LEVER (FLT. 838)
5
3-225-798-11 CASE (UPPER S)
6
X-3379-931-2 ARM (FL. S) ASSY
7
X-3379-932-2 ARM (FR. S) ASSY
8
3-225-807-01 DAMPER (S)
9
X-3379-942-2 CASE (LOWER. S) ASSY
10
3-225-808-02 SPRING (FLT. S)
11
3-223-913-11 LABEL (OP CAUTION)
12
A-3274-538-A MAIN BOARD, COMPLETE
13
3-935-636-11 SCREW (FP)
14
3-225-810-02 BUTTON (S) (EJECT) (Z)
15
3-225-805-01 ESCUTCHEON (S)
16
3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT
17
1-757-747-11 CORD (WITH CONNECTOR) (BUS/RCA)
18
1-680-823-11 JACK FLEXIBLE BOARD
19
1-680-828-13 JACK BOARD
20
3-233-246-01 CUSHION (CHASSIS 6T)
21
3-348-750-01 CUSHION (DAMPER)
22
3-233-248-01 CUSHION (JACK)
23
3-233-245-01 SPACER (CASE LOWER)
RV301
1-227-137-11 RES, VAR, SLIDE 10K
(ELEVATOR HEIGHT SENSOR)
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
33
CDX-T6NV
6-2. MECHANISM DECK SECTION-1
(MG-276A-159)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
A-3315-334-D CHASSIS ASSY, MAIN
52
3-048-814-01 SCREW (M1.7X2.2)
53
3-227-131-01 BELT (TS)
54
3-973-975-11 DAMPER, OIL
56
3-227-133-01 BRACKET (MDM)
57
3-227-150-01 SPRING, TENSION
58
3-701-440-21 WASHER, 3.5
M104
A-3315-337-A MOTOR ASSY, MD (ELEVATOR)
#2
7-685-780-09 SCREW +PTT 2X3 (S)
#7
7-624-104-04 STOP RING 2.0, TYPE-E
#8
7-685-851-09 SCREW, +BVTT 2X4 (S)
M104
mechanism deck section-2
not supplied
#2
#8
#8
#2
#7
#7
#2
57
52
58
53
51
54
56
not supplied
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