Sony HCD-GNZ55D Service Manual page 74

HCD-GNZ55D
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IC403 BH2210FV-E2 (SIGNAL IN/OUT CONTROL) (MAIN BOARD (2/4))
Pin No. Pin Name
1 CTLIO
2 RESET
3 CLK
4 LATCH
5 TC-MUTE
6 NO USE
7 REC MUTE
8 NO USE
9 SM-NSP-MUTING
10 SM-SOFT-MUTING
11 SM-PG-MUTE
12 SM-INIT
13 LATCHO
14 CLKO
15 DO1
16 DI2
17 A-TRIG
18 CAMP-CNT
19 B-TRIG
20 REC BIAS
21 TC RELAY
22 ADC RESET
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23 NO USE
24 FAN CTRL
25 DO2
26 DI1
27 VSS
28 VDD
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I/O
I IN/OUT control port (Fixed at "H" in this set.)
I Reset signal input
I Serial data clock signal input
I Serial data latch signal input
O Tape playback muting on/off control signal output "H": muting on
O Not used. (Open)
O Recording muting on/off control signal output "L": muting on
O Not used. (Open)
S master processor IC PWM 50% duty muting on/off control signal output
O
"L": muting on
O S master processor IC soft muting on/off control signal output "L": muting on
O S master processor IC PWM muting on/off control signal output "L": muting on
O Initialization signal to the S master processor IC
O Serial data latch output signal Not used. (Open)
O Serial data clock signal output Not used. (Open)
O Serial data signal output 1 Not used. (Open)
I Serial data signal input 2 Not used. (Connect to ground.)
O Deck A side trigger plunger drive signal output "H": plunger on
O Capstan motor drive signal output
O Deck B side trigger plunger drive signal output "H": plunger on
O Recording bias on/off control signal output "H": bias on
O Recording/playback selection signal output "H": recording, "L": playback
O Power down control signal to analog to digital converter "L": power down
O Not used. (Open)
O Fan driving signal output "L": fan on Not used in this set. (Open)
O Not used. (Open)
I Serial data signal input
— Ground pin
— Power supply pin (+3 V)
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2 9
8
Pin Description
Q Q
3 6 7 1 3 1 5
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9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9