Sony CDX-V3800 Service Manual ▷ View online
29
CDX-V3800
• IC400 SPCA717A-HL211 (VIDEO SIGNAL PROCESSOR) (SERVO BOARD (2/2))
Pin No.
Pin Name
I/O
Pin Description
1
FSADJUST
—
Full-Scale adjust control pin The Full-Scale current of D/A converters can be
adjusted by connecting a resistor (RESET) between this pin and ground.
2
COMP
—
Compensation pin A0.1
µF ceramic capacitor must be used to bypass this pin to VAA.
The lead length must be kept as short as possible to avoid noise.
3
AVCC
—
Analog power supply pin (+3.3 V)
4
VREF OUT
O
Voltage reference signal output It generates typical 1.2 V voltage reference and may
be used to drive pin 5 (VREF IN) directly.
Voltage reference signal input An external voltage reference must supply typical
5
VREF IN
I
1.235 V to this pin. A0.1
µF ceramic capacitor must be used to de-couple this input
to ground. The decoupling capacitor must be as closed as possible to minimize the
length of the load. The pin may be connected derectry to pin 4 (VREF OUT).
6
VBIAS
—
DAC bias voltage Potential normally 0.7 V less than pin 2 (COMP).
7
NC
—
Not used. (Open)
8
AGND
—
Analog ground pin
Power save mode A logic high on this pin puts the chip into power-down mode. This
9
SLEEP
I
pin is equal to reset pin. An external logic high pulse should input to the pin when
power on.
10
SVIDEO
I
Video signal selection pin A logic high selects Y output. A logic low selects
composite video output. Not used in this set. (Fixed at “L”.)
11
CBSWAP
I
Cr and Cb pixel sequence configuration pin A logic high swap the Cr and Cb sequence.
Not used in this set. (Fixed at “L”.)
12
MASTER
I
Master/Slave mode selection A logical high for master mode operation. A logical 0
for slave mode operation. Not used in this set. (+3.3 V)
13
MODEA
I
Mode configuration pin Not used in this set. (Fixed at “L”.)
14
MODEB
I
Mode configuration pin
15
CLK
I
27 MHz crystal oscillator input A crystal with 27 MHz clock frequency can be
connected between this pin and pin qh (XTALO).
16
XTALO
O
Crystal oscillator output Not used in this set. (Open)
17 to 24
P0 to P7
I
YCrCb pixel inputs
They are latched on the rising edge of CLK.
25
CLKOUT
O
Pixel clock signal output Not used in this set. (Open)
26
DGND
—
Digital ground pin
27
VDD
—
Digital power supply pin (+3.3 V)
28
VSYNC
I/O
Vertical sync input/output
VSYNC is latched/output following the rising edge of CLK.
29
HSYNC
I/O
Horizontal sync input/output
HSYNC is latched/output following the rising edge of CLK.
30
TEST
I
Test pin These pins must be connected to digital ground.
31
AGND
—
Analog ground pin.
32
CVBSY
O
Composite/Luminance output. This is a high-impedance current source output. The
output format can be selected by the PAL pin. The CVBSY can drive a 37.5
Ω load.
30
CDX-V3800
• IC801 MB90488BPF-G-135-BNDE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No.
Pin Name
I/O
Pin Description
1
LINE ATT
O
Audio mute control signal output
2 to 4
NC
—
Not used in this set. (Open)
5
BEEP
O
Beep signal output to power amp IC
6
VOL ATT
O
Electrical volume ATT control signal output
7 to 10
NC
—
Not used in this set. (Open)
11
VSS
—
Ground pin
12 to 14
NC
—
Not used in this set. (Open)
15
TU ATT
O
Tuner mute control signal output
16, 17
NC
—
Not used in this set. (Open)
18
CD SI
I
CD servo serial data signal input
19
CD SO
O
CD servo serial data signal output
20
CD SCK
O
CD servo serial clock signal output
21, 22
NC
—
Not used in this set. (Open)
23
VCC+3.3
—
Power supply pin (+3.3 V)
24
EEP SIO
I/O
Serial data signal input/output for EEPROM communication
25
EEP SCK
O
Serial clock signal output for EEPROM communication
26
SHUT SW
I
Shutter switch open/close detect signal input
“L”: Panel open, “H”: Panel close Not used in this set. (Open)
27
LCD CE
O
Chip enable signal output to LCD driver IC
28
LCD SO
O
Serial data signal output to LCD driver IC Flash: UART serial out
29
LCD SCK
O
Serial clock signal output to LCD driver IC
30
NC
—
Not used in this set. (Open)
31
STB
O
Standby signal output to power amp IC
32
AUX
—
Not used in this set. (Open)
33
IIC SCK
O
IIC bus serial clock signal output
34
IIC SIO
I/O
IIC bus serial data signal input/output
35
VCC+3.3
—
Power supply pin (+3.3 V) (for A/D converter)
36
AVRH+3.3
—
External reference power supply (+3.3 V) (for A/D converter)
37
AVSS
—
Ground pin (for A/D converter)
38, 39
KEY IN0, 1
I
Key signal input
40
NC
—
Not used in this set. (Open)
41
NC
—
Not used in this set. (Fixed at “H”.)
42
VSS
—
Ground pin
43, 44
NC
—
Not used in this set. (Fixed at “L”.)
45
VSM
I
S meter voltage detect signal input
46
DST SEL
I
Destination select pin
47
KEY ACK
I
Key acknowledge detect signal input
48
NC
—
Not used in this set. (Open)
49, 50
MD0, 1
I
Input for operation mode designation (Fixed at “H”.)
51
MD2
I
Input for operation mode designation (Fixed at “L”.)
52
NC
—
Not used in this set. (Open)
53
BU IN
I
Back up power supply detect signal input
54
SP
O
SP mode select signal output
55
CD SELFSW
I
CD mechanism self load position detect switch signal input
56
DIAG
I
Condition input from power amp IC
57
NC
—
Not used in this set. (Open)
58
UNI SI
I
Serial data signal input
59
UNI SO
O
Serial data signal output
60
UNI SCK
O
Serial clock signal output Not used in this set. (Open)
61
BUS ON
O
Bus on signal output
62
SYS RST
O
System reset signal output
63
NC
—
Not used in this set. (Open)
31
CDX-V3800
Pin No.
Pin Name
I/O
Pin Description
64
ACC IN
I
Accessory power supply detect signal input
65
SIRCS
I
Remote control signal (infrared rays) input
66
NC
—
Not used in this set. (Fixed at “L”.)
67
PAK BK
I
Test mode detect signal input
68
FLASH W
I
Memory mode changeover signal input
Normally “H” input (single chip mode) “L” after reset: Flash write mode
69 to 71
NC
—
Not used in this set. (Open)
72
DOOR SW
I
Front panel open/close detect signal input
“L” input: Panel close, “H” input: Panel open
73, 74
NC
—
Not used in this set. (Fixed at “H”.)
75
XKEY ON
O
Key power supply control signal output Pin rj (KEY ACK) active: “L” output
76
NC
—
Not used in this set. (Open)
77
RESET
I
Reset signal input
78
NC
—
Not used in this set. (Open)
79
X1A
—
Oscillator connect pin (32.768 kHz)
80
X0A
—
Oscillator connect pin (32.768 kHz)
81
VSS
—
Ground pin
82
X0
—
Oscillator connect pin (3.68 MHz)
83
X1
—
Oscillator connect pin (3.68 MHz)
84
VCC+3.3
—
Power supply pin (+3.3 V)
85, 86
NC
—
Not used in this set. (Open)
87
CD ON
O
CD power on/off control signal output
88
NC
—
Not used in this set. (Open)
89
TEST MODE
I
Test mode pin
90
MP
O
MP mode select signal output
91
NC
—
Not used in this set. (Open)
92
CD IN SW
I
CD mechanism IN-SW detect signal input
93
CD LOAD
O
CD mechanism loading motor control signal output
94
EJECT
O
CD mechanism eject motor control signal output
95
D SW
I
CD mechanism DSW detect signal input
69, 97
NC
—
Not used in this set. (Open)
98
CD XRST
O
CD servo reset signal output
99
NC
—
Not used in this set. (Open)
100
NC
—
Not used in this set. (Open)
32
CDX-V3800
Ref. No.
Part No.
Description
Remark
4-1. MAIN SECTION
Ref. No.
Part No.
Description
Remark
1
X-3384-407-1 PANEL (1) ASSY, SUB
2
3-231-472-02 SCREW (+B 2X4)
3
X-3382-588-1 LOCK ASSY (S)
* 4
3-246-006-31 COVER
5
3-922-535-11 SCREW (+BTT)
6
1-829-847-11 CABLE, FLAT (FFC) 26P
7
A-1096-245-A MAIN BOARD, COMPLETE
8
1-792-194-61 CORD (WITH CONNECTOR) (POWER)
9
1-829-836-12 CORD, CONNECTION (VIDEO OUT)
10
2-178-708-01 SHEET, SHIELD
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TUX601 A-3220-961-A TUNER UNIT (TUX-032)
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
#2
7-685-793-09 SCREW +PTT 2.6X8 (S)
SECTION 4
EXPLODED VIEWS
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of this
parts list.
R
R
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
F901
not supplied
TUX601
not supplied
not supplied
#1
#1
#1
#1
#2
#2
#1
MG-611MM-186//K
A
A
B
B
1
2
3
4
5
8
6
9
10
7
Click on the first or last page to see other CDX-V3800 service manuals if exist.