Sony XDC-40 / XR-C5100 Service Manual ▷ View online
– 17 –
SECTION 6
DIAGRAMS
•
MAIN BOARD IC501
µ
PD17708GC-567-3B9 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Function
1
AMSSEL
I
Setting terminal for the AMS selection fixed at “L”
2
POS3
I
3
POS2
I
4
POS0
I
5
POS1
I
6
TAPEON
O
Tape system power supply on/off control signal output terminal “H”: tape on
7
CM ON
O
Capstan/reel motor (M901) drive signal output terminal “H”: motor on
8
LM LOD
O
Loading/tape operation motor control signal output to the LB1638M (IC351)
(For the loading direction and forward side operation) *1
(For the loading direction and forward side operation) *1
9
LM EJ
O
Loading/tape operation motor control signal output to the LB1638M (IC351)
(For the eject direction and reverse side operation) *1
(For the eject direction and reverse side operation) *1
10
TUNON
O
Tuner system power supply on/off control signal output to the BA3918 (IC611) “H”: tuner on
11
FM ON
O
FM system power supply on/off control signal output to the BA3918 (IC611) “H”: FM on
12
PW ON
O
Main system power supply on/off control signal output to the BA3918 (IC611) “H”: power on
13
MUT
O
Line muting control signal output terminal “H”: line muting on
14
VOLCE
O
Chip enable signal output to the electrical volume (IC331)
15
VOLCKO
O
Serial data transfer clock signal output to the electrical volume (IC331)
16
VOLSO
O
Serial data output to the electrical volume (IC331)
17
AMPON
O
Standby control signal output to the power amplifier (IC751) “L”: standby
18
AMPMUT
O
Muting control signal output to the power amplifier (IC751) “L”: muting on
19
DX/LO
O
Local/DX selection signal output to the FM/AM tuner unit (TU1) “L”: DX, “H”: local
20
AM MONO
O
AM forced monaural signal output terminal Not used (open)
21
GND
—
Ground terminal
22
DSTSEL
I
23
DBASIN
I
D-BASS switch (SW951) input (A/D input)
24
KEYIN1
I
Key input terminal (A/D input)
6, INTRO 1, REPEAT 2, SHUF 3, BL SKIP 6, ATA 5, 4, PRESET DISC +/– keys input
(LSW921 to LSW927, LSW929 and LSW930)
6, INTRO 1, REPEAT 2, SHUF 3, BL SKIP 6, ATA 5, 4, PRESET DISC +/– keys input
(LSW921 to LSW927, LSW929 and LSW930)
25
KEYIN0
I
Key input terminal (A/D input)
OFF, SOURCE, MODE
OFF, SOURCE, MODE
*, + ) + SEEK AMS, – = 0 SEEK AMS, VOLUME –,
SEL, VOLUME +, ATT , DSPL, BTM, LCL keys input (LSW901 to LSW912)
26
RC IN0
I
Rotary remote commander shift key A/D input terminal
27
VSM
I
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
28
AMIFIN
I
AM intermediate frequency detection signal input from the FM/AM tuner unit (TU1)
29
FMIFIN
I
FM intermediate frequency detection signal input from the FM/AM tuner unit (TU1)
30
VDD2
—
Power supply terminal (+5V)
31
FM OSC
I
FM local oscillator detection signal input from the FM/AM tuner unit (TU1)
32
AM OSC
I
AM local oscillator detection signal input from the FM/AM tuner unit (TU1)
33
GND
—
Ground terminal
34
NCO
O
Not used (open)
35
EO1
O
Main charge-pump control signal output terminal
36
TEST0
I
Setting terminal for the test (fixed at “L”)
37
NCO
O
Not used (open)
38
SEKOUT
O
Seek control signal output to the FM/AM tuner unit (TU1)
Tape position detect input from tape operation switch on the mechanism block
Destination setting terminal
US, Canadian models: fixed at center voltage
E model: frequency select switch (S502) input
“L”: AM 9k step or FM 50k step, “H”: AM 10k step or FM 200k step
US, Canadian models: fixed at center voltage
E model: frequency select switch (S502) input
“L”: AM 9k step or FM 50k step, “H”: AM 10k step or FM 200k step
6-1.
IC PIN FUNCTION DESCRIPTION
– 18 –
Pin No.
Pin Name
I/O
Function
39
MW/SW
O
MW/SW selection signal output to the FM/AM tuner unit (TU1) “L”: MW, “H”: SW
Used for the E mode
Used for the E mode
40
BEEP
O
Beep sound output terminal
41
KEYACK
I
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
and eject keys in the power off status On at input of “L”
and eject keys in the power off status On at input of “L”
42
BU IN
I
Battery detect signal input terminal “H”: battery on
43
MTLSEL
I/O
44
DOLON
I/O
45
AMSIN
I
Whether a music is present or not from CXA2509AQ (IC301) is detected at auto music sensor
“L”: music is present, “H”: music is not present
“L”: music is present, “H”: music is not present
46
ST
I/O
47
AMS ON
O
Tape auto music sensor control signal output to the CXA2509AQ (IC301)
“L” is output to lower the gain for audio level at FF/REW
“L” is output to lower the gain for audio level at FF/REW
48
N/R OUT
O
Forward/reverse direction control signal output to the CXA2509AQ (IC301)
“L: forward direction, “H”: reverse direction
“L: forward direction, “H”: reverse direction
49
TAPMUT
O
Tape muting on/off control signal output to the CXA2509AQ (IC301) “H”: tape muting on
50
ILLON
O
51
SD IN
I
Station detector detect input from the FM/AM tuner unit (TU1)
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
52
NOSESW
I
Detects the removal of the attaching and removing type front panel block “L”: attaching
53
TELMUT
I
Telephone muting signal input terminal At input of “L”, the signal is attenuated by –20 dB
Used for the E model
Used for the E model
54
REL T
I
Reel table rotation detect signal input from the take-up and supply reel sensor
55
ACCIN
I
Accessory detect signal input terminal “L”: accessory on
56
TESTIN
I
Setting terminal for the test mode “L”: test mode (normally fixed at “H”)
57
RC IN1
I
Rotary remote commander shift key A/D input terminal
58
PW SEL
I
Power select switch (S501) input terminal
“L”: position A (halt mode), “H”: position B (operation mode)
“L”: position A (halt mode), “H”: position B (operation mode)
59
MTLIN
I
Input terminal to set whether the auto metal function is present or not
“L”: auto metal function is present (fixed at “H”)
“L”: auto metal function is present (fixed at “H”)
60
ADON
O
Power supply on/off control signal output for the A/D conversion
61
KEYSEL
I
Setting terminal for the key (fixed at “H”)
62
SEKOUTSEL
I
Active selection terminal for the SEKOUT (pin #•)
(US, Canadian models: fixed at “H”, E model: fixed at “L”)
(US, Canadian models: fixed at “H”, E model: fixed at “L”)
63
COLORSEL
I
Setting terminal for the illumination color “L”: amber, “H”: green (fixed at “H”)
64
LCDCE
O
Chip enable output to the liquid crystal display driver (IC901)
65
LCDCKO
O
Serial data transfer clock signal output to the liquid crystal display driver (IC901)
Input of FM stereo detection signal from FM/AM tuner unit (TU1), and output of forced
monaural control signal to FM/AM tuner unit (TU1) (Commonly used for stereo display input
and forced monaural output)
FM stereo detection at input of “L”, forced monaural at output of “L”
monaural control signal to FM/AM tuner unit (TU1) (Commonly used for stereo display input
and forced monaural output)
FM stereo detection at input of “L”, forced monaural at output of “L”
Dolby control in/out terminal
At initial mode: valid/invalid selection input of dolby function (“L” input: valid)
At normal mode: dolby on/off control signal output (“H” output : dolby on)
Not used this function in this set (fixed at “H”)
At initial mode: valid/invalid selection input of dolby function (“L” input: valid)
At normal mode: dolby on/off control signal output (“H” output : dolby on)
Not used this function in this set (fixed at “H”)
METAL control in/out terminal
At initial mode: auto/manual mode selection input of METAL function “L”: manual mode
At manual mode: METAL on/off control signal output terminal (“H” output: METAL on)
At auto mode: input at MTLIN (pin %ª)
Not used this function in this set (fixed at “H”)
At initial mode: auto/manual mode selection input of METAL function “L”: manual mode
At manual mode: METAL on/off control signal output terminal (“H” output: METAL on)
At auto mode: input at MTLIN (pin %ª)
Not used this function in this set (fixed at “H”)
Power supply on/off control signal output terminal at the illumination and liquid crystal display
driver (IC901) “H”: power on
At power select switch (S501) on mode: “H” output at the accessory on
At power select switch (S501) off mode: “H” output at the power on
driver (IC901) “H”: power on
At power select switch (S501) on mode: “H” output at the accessory on
At power select switch (S501) off mode: “H” output at the power on
– 19 –
Pin No.
Pin Name
I/O
Function
66
LCDSO
O
Serial data output to the liquid crystal display driver (IC901)
67
LCDINH
O
Blank indicate control signal output to the liquid crystal display driver (IC901)
“L”: no display
“L”: no display
68
UNICKI
I
Serial data reading clock signal input terminal (for SONY bus)
69
UNISO
O
Serial data output to the bus interface (IC581) (for SONY bus)
70
UNISI
I
Serial data input from the bus interface (IC581) (for SONY bus)
71
UNICKO
O
Serial data transfer clock signal output to the bus interface (IC581) (for SONY bus)
72
BUSON
O
Bus on/off control signal output to the bus interface (IC581) (for SONY bus) “L”: bus on
73
SYSRST
O
Reset signal output to the bus interface (IC581) (for SONY bus) “L”: reset
74
VREG
O
CPU regulator output terminal Connected to capacitor
75
GND
—
Ground terminal
76
X OUT
O
Main system clock output terminal (4.5 MHz)
77
X IN
I
Main system clock input terminal (4.5 MHz)
78
CE
I
CPU chip enable signal input (fixed at “H”)
79
VDD1
—
Power supply terminal (+5V)
80
RESET
I
System reset signal input from the reset signal generator (IC551) and reset switch (S551)
“L” is input for several 100 msec after power on, then it changes to “H”
“L” is input for several 100 msec after power on, then it changes to “H”
*1 loading/tape operation motor control
MODE
TERMINAL
LM LOD (pin 8)
“L”
“H”
“L”
“H”
LM EJ (pin 9)
“L”
“L”
“H”
“H”
STOP
LOADING/
FORWARD
EJECT/
REVERSE
BRAKE
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6-2.
PRINTED WIRING BOARD – MAIN Section –
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