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55 VHOLD
56 CVIN(EDS)
57 GND
58 DVDIN(H)
59 NC
O Unused terminal.Fixed output as Low.
60 NC
61 VTR(H)/TV(L)
O
62 NC
O Unused terminal.Fixed output = Low.
63 VBI2
O
64 VBI1
O
65 EEPROM_OUT
O
66 EEPROM_IN
67 EEPROM_CLK
O
68 IC.DATA.OUT
O Peripheral IC control Timer-Bus signal: data output
69 IC.DATA.IN
70 IC.DATA.CLK
O Peripheral IC control Timer-Bus signal: clock output
71 IIC.CLK
O AV1 Chip/FM Audio IC serial communication terminal(IIC).
72 IIC.DATA
I/O AV1 Chip/FM Audio IC serial communication terminal(IIC).
73 256Hz/ROM.CORE
O
74 CAP R/F
O
75 P_ON(H)
O
76 CAP.ET
O
77 CYL.ET
O
78 P.FAIL(L)
I
Capacitor Connection terminal of Slicer Ref Voltage Generator Circuit
I
Slicer Composite Video Signal Input Terminal.
- Mecha Testing terminal A. ( Connected to GND )
PIN music secondary output = High
During CH Selection, Dubbing Input (DC): Output = High
Other than above, Output : Low
Unused terminal.Fixed output = Low.
TV/VTR Selection control signal
When forced TV(L) = (L), Output = (L)
When forced TV(L) = (H), If Power Off, Output = (L)
When forced TV(L) = (H), If switching over from EE to VV, Output = (H)
When forced TV(L) = (H), other than mentioned above,
When forced TV(L) = (H), OTHER THAN ABOVE, ANT_SELECT appears.
Condition inverse.
When writing navigator: tape navi data mass pulse ( special use )
Other than writing : Hi-Z ( common use )
When writing navigator: tape navi data writing pulse ( special use terminal )
Other than writing : Hi-Z ( common use terminal)
Used during Navi back-up mode
EEPROM control terminal: data output
Used during Navi back-up mode
I
EEPROM control terminal: data input
Used during Navi back-up mode
EEPROM control terminal: clock output
I
Peripheral IC control Timer-Bus signal: data input
Since there are 2 function controls,port function is divided into 2 as shown below.
(1) Normal mode/Service mode : Fixed Output(NC) = L
(2) Test mode: Judge ROM core confirmation. Decide port function.
When ROM core confirm mode: ROM.CORE terminal
When other than ROM core confirm mode: Main clock Adjustment Internal
Osc. Output terminal
(3) Test 2 mode:Main clock Adjustment Internal Osc. Output terminal
Control method of each port function is shown as below.
[ROM .CORE terminal]When ROM collection setting bit = ON, Output = High
When ROM collection setting bit = OFF, Output = Low
[Main clock Adjuatment Internal Osc. Output terminal ]
Output : 256Hz
Capstan driver rotating direction control
RVS = "High", FWD = "Low"
VTR power control terminal.
When VTR = Power Off, and, DVD = Power Off, Ouput = Low
When VTR peripheral circuit = Power Off/ Timer Standby, Output = Low
Even when apparently Power is Off, if Mecha or Peripheral circuit operation is
required, output = High
If required: Head cleaning, timer confirmation ( VPS/PDC standby, ACS )
When J.CLK Syscon serial is ON( during J.CLK mode ), even if power is off,
Capstan motor control voltage supply terminal
When higher than Drive Reference Voltage: Accelerated
When lower than Drive Reference Voltage : Current off
Cylinder Motor Control Voltage Supply terminal
When higher than Driver Reference Voltage: current off
When lower than Driver Reference Voltage: accelerated
However, during Cylinder Off, Max value of decelerated Voltage is as follow.
Normal Control : 3.150V
Cylinder Off: 5.000V
Power Failure Detection Input terminal
I
Input = "L", Power Failure Mode
In
In
In
In
In
In
-
-
-
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
In
In
In
Low
Low
Low
(Normal
Opera-
Low
Hi-Z
tion)
(Normal
In
In
Opera-
tion)
(Normal
Low
Hi-Z
Opera-
tion)
(Normal
Opera-
Low
Hi-Z
tion)
(Normal
Opera-
Low
Hi-Z
tion)
(Normal
Opera-
Low
Low
tion)
Low
Low
Low
Low
Low
Low
High
High
PWM=
Low
PWM=
0V
0V
Low
Low
PWM=
Low
PWM=
5.000V
5.000V
In
In
In
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