Sony HMD-M11 Service Manual page 89

POWER BOARD IC700
Pin No. Pin Name I / O
1 NC I
2 MD RESET O
3 NC I
4 AVSS
—
5 NC I
6 NC I
7 AVREF1 I
8 DATA IN I
9 O
DATA OUT
10 I
CTS
11 RTS
O
12 SDATA
O
13 SCK
O
14
CS O
15 REST
O
16 to 20 NC
I
21 ST VER0
I
22 ST VER1
I
23 ST VER2
I
24 to 26 NC
I
27 YB-DATA0
I/O
28 YB-DATA1
I/O
29 YB-DATA2
I/O
30 YB-DATA3 I/O
31 O
LED1
32 LED0
O
33 VSS
—
34
ST POWER O
35 O
SYS POWER
36 MD REC O
37 AUX OFF O
38 MUTE1 O
39 MUTE2
O
40
NC I
41 NC I
42 STEREO I
43 TUNED I
44
CE O
45
CLOCK O
µPD78058GC-299-3B9 (MASTER CONTROLLER)
Not used (fixed at "L")
System reset signal output to the mechanism controller (IC100)
For several hundreds msec. after the power supply rises, "L" is output, then it changes to "H"
Not used (fixed at "L")
Ground terminal (for A/D converter)
Not used (fixed at "L")
Not used (fixed at "L")
Reference voltage input terminal (+5V) (for D/A converter)
UART data input from the mechanism controller (IC100)
UART data output to the mechanism controller (IC100)
UART data reception request signal input from the mechanism controller (IC100)
UART data transmission request signal output to the mechanism controller (IC100)
Serial data output to the fluorescent indicator tube driver (IC901)
Serial data transfer clock signal output to the fluorescent indicator tube driver (IC901)
Chip enable signal output to the fluorescent indicator tube driver (IC901)
Forced reset signal output to the fluorescent indicator tube driver (IC901)
Not used (fixed at "L")
Tuner destination selected terminal
US, Canadian, AEP, UK models: fixed at "H"
E, Singapore, Malaysia, Hong Kong models: fixed at "L"
Tuner destination selected terminal (fixed at "L" in this set)
Tuner destination selected terminal
AEP, UK models: fixed at "L"
Except AEP, UK models: fixed at "H"
Not used (fixed at "L")
Two-way data bus with the micro-computer on CDP-M11C (CD player system)
REC indication LED (D911) drive signal output
CD SYNC indication LED (D910) drive signal output
Ground terminal
Power control signal output for the tuner circuit
Power control signal output for main system
–6 dB attenuate control signal output for the MD analog input
Control signal output to the output circuit in MD recording mode
Line mute control signal output
Line mute control signal output
Not used (fixed at "L")
Not used (fixed at "L")
STEREO indicate signal input from the FM/AM (MW) tuner unit (TB101)
TUNED indicate signal input from the FM/AM (MW) tuner unit (TB101)
PLL chip enable output to the FM/AM (MW) tuner unit (TB101)
PLL serial data transfer clock signal output to the FM/AM (MW) tuner unit (TB101)
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Function
"L": LED on
"L": LED on
"L": tuner power on
"L": power on, "H": standby
"H": mute on
"H": mute on
"L": reset
"L": forced reset
"L" active
Off in TAPE mode