Sony HT-K170 / TA-VE170 Service Manual ▷ View online
TA-VE170
13
13
4-6. SCHEMATIC DIAGRAM – PANEL Section –
• See page 6 for Waveform.
• See page 16 for IC Pin Function.
(Page 10)
(Page 11)
PIN FUNCTION
TA-VE170
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4-7. PRINTED WIRING BOARDS – POWER Section –
• See page 6 for Circuit Boards Location.
There are a few cases that the part printed on
this diagram isn’t mounted in this model.
this diagram isn’t mounted in this model.
(Page 9)
(Page 9)
PC900
TA-VE170
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15
4-8. SCHEMATIC DIAGRAM – POWER Section –
• See page 7 for IC Block Diagram.
16
16
4-9. IC PIN FUNCTION DESCRIPTION
•
DISPLAY BOARD IC201
µ
PD78042FGF-120-3B9
(SYSTEM CONTROLLER, FL/LED DRIVER, KEY CONTROL)
Pin No.
Pin Name
I/O
Function
1 to 7
DIG7 to DIG1
O
Grid drive signal output to the fluorescent indicator tube (FL201)
8
VDD
—
Power supply terminal (+5V)
9
S. CLK
O
Serial data transfer clock signal output to the M62447SP (IC100), LV1035M (IC300) and
LC78212 (IC500)
LC78212 (IC500)
10
S. DATA
O
Serial data output to the M62447SP (IC100), LV1035M (IC300) and LC78212 (IC500)
11
S. CE (VOL)
O
Chip enable signal output to the M62447SP (IC100) “H” active
12
S. CE (LC7822)
O
Chip enable signal output to the LC78212 (IC500) “H” active
13
S. CE (LV1035M)
O
Chip enable signal output to the LV1035M (IC300) “H” active
14
EN3
O
Enable signal output terminal “L” active
15
—
Not used
16
PROTECT
I
I
Overload protection input terminal
17
RESET
I
System reset signal input from the reset signal generator circuit “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”
18
EN1
O
Enable signal output to the function switch (IC402) “L” active
19
EN2
O
Enable signal output to the function switch (IC401) “L” active
20
AVSS
—
Ground terminal (for A/D converter)
21
FAN CLK
I
Fan motor clock signal input terminal
22
FAN ON
I
Fan on signal input for the fan motor drive
23
FAN. CNTL
O
Fan motor control signal output terminal “L”: fan motor on (high speed) “H” : fan low speed
24
MUTING
O
LED drive signal output of the MUTING LED (D218) “H”: LED on
25
—
I
Not used (open)
26
A/D III
I
Key input terminal (A/D input) S205, 206 (5.1 IN, SURROUND MODE keys input)
27
A/D II
I
Key input terminal (A/D input) S202, 204 (VIDEO, DVD keys input)
28
A/D I
I
Key input terminal (A/D input) S201, 203 (CENTER MODE, TV keys input)
29
AVDD
—
Power supply terminal (+5V) (for A/D converter)
30
AVREF
I
Reference voltage (+5V) input terminal (for A/D converter)
31
XT1
I
Sub system clock input terminal Not used (fixed at “L”)
32
XT2
O
Sub system clock output terminal Not used (open)
33
VSS
—
Ground terminal
34
X1
I
Main system clock input terminal (4.19 MHz)
35
X2
O
Main system clock output terminal (4.19 MHz)
36
SIMULATED
O
LED drive signal output of the SIMULATED LED (D215) “L”: LED on
37
C. STUDIO
O
LED drive signal output of the C.STUDIO LED (D216) “L”: LED on
38
PROLOGIC
O
LED drive signal output of the PROLOGIC LED (D217) “L”: LED on
39
—
I
Not used (fixed at “L”)
40
PHANTOM
O
LED drive signal output of the PHANTOM LED (D211) “L”: LED on
41
WIDE
O
LED drive signal output of the WIDE LED (D212) “L”: LED on
42
NORMAL
O
LED drive signal output of the NORMAL LED (D213) “L”: LED on
43
3-STEREO
O
LED drive signal output of the 3 STEREO LED (D214) “L”: LED on
44
SYS. POWER
I
System power on/off switch (S200 I/u) input terminal
45
ENCODER 2
I
Jog dial pulse input from the rotary encoder (RV201 MASTER VOLUME)
46
ENCODER 1
I
Jog dial pulse input from the rotary encoder (RV201 MASTER VOLUME)
47
STOP
I
Power down detection signal input from the NJM2103D (IC950) “L”: power down
48
VSS
—
Ground terminal
49
SIRCS
I
Sircs signal input from the remote control receiver (IC202)
50, 51
—
I
Not used (fixed at “L”)
Pin No.
Pin Name
I/O
Function
52
VDD
—
Power supply terminal (+5V)
53
FAN ON/OFF
O
Fan on/off control “L” : fan on “H” : fan stop
54
MUTE. S. R
O
Line muting on/off control signal output for the rear speaker right channel signal
“H”: muting on
“H”: muting on
55
MUTE. S. L
O
Line muting on/off control signal output for the rear speaker left channel signal
“H”: muting on
“H”: muting on
56
FUNC. MUTE
O
Line muting on/off control signal output for the front and center speakers signal
“H”: muting on
“H”: muting on
57
VERSION
I
Setting terminal for the version (fixed at “L” in this set)
58
W. RY
O
Woofer on/off relay drive signal output terminal “H”: relay on
59
SP. RY
O
Front speaker on/off relay drive signal output terminal (for protect) “H”: relay on
60
S. RY
O
Rear speaker on/off relay drive signal output terminal (for protect) “H”: relay on
61
C. RY
O
Center speaker on/off relay drive signal output terminal (for protect) “H”: relay on
62
POWER. RY
O
Power on/off relay drive signal output terminal “H”: relay on (power on)
63 to 70
S14 to S7
O
Segment drive signal output to the fluorescent indicator tube (FL201)
71
VLOAD
—
Power supply terminal (–24V) (for FL drive)
72 to 77
S6 to S1
O
Segment drive signal output to the fluorescent indicator tube (FL201)
78
—
O
Not used (open)
79, 80
DIG9, DIG8
O
Grid drive signal output to the fluorescent indicator tube (FL201)
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