Panasonic NV-VP32GN, Service Manual

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58 DVDIN(H) Unused terminal
59 SECAM MIX O SECAM CHROMA signal input terminal for SECAM SIGNAL SUPER IMPOSE. Low Low Low
60 CHARA+HEM O
OSD REC control terminal.
1.During OSD REC.
*During OSD character is output (Including Hemming): High is output.
*Output than above condition: Low is output.
2.Other than OSD REC: High-Z.
Hi-
Z/Low
Hi-
Z/Low
Hi-
Z/Low
61 SW2 O
AUDIO SYSTEM (TUNER PRESET) select terminal.
AUDIO SYSTEM = BG, DK: High is Output.
AUDIO SYSTEM = I, M: Low is Output.
Low Low Low
62 A.SEARCH (L) I/O
AGC gain selection signal for tuner CH selection.
During digital AFC is working at TUNER PRESET mode: Low (AGC is high speed)
Other than above: Hi-Z (AGC is normal speed)
Low Low Low
63 VBI2 O
When writing navigator: tape navi data mass pulse ( special use )
Other than writing : Hi-Z ( common use )
Hi-Z Low Hi-Z
64 VBI1 O
When writing navigator: tape navi data writing pulse ( special use terminal )
Other than writing : Hi-Z ( common use terminal)
Hi-Z Low Hi-Z
65 EEPROM_OUT O
Used during Navi back-up mode
EEPROM control terminal: data output
Low Low Low
66 EEPROM_IN I
Used during Navi back-up mode
EEPROM control terminal: data input
In In In
67 EEPROM_CLK O
Used during Navi back-up mode
EEPROM control terminal: clock output
Low Low Low
68 IC.DATA.OUT O Peripheral IC control Timer-Bus signal: data output
(Normal
Opera-
tion)
Low Hi-Z
69 IC.DATA.IN I Peripheral IC control Timer-Bus signal: data input
(Normal
Opera-
tion)
In In
70 IC.DATA.CLK O Peripheral IC control Timer-Bus signal: clock output
(Normal
Opera-
tion)
Low Hi-Z
71 IIC.CLK O AV1 Chip/FM Audio IC serial communication terminal(IIC).
(Normal
Opera-
tion)
Low Hi-Z
72 IIC.DATA I/O AV1 Chip/FM Audio IC serial communication terminal(IIC).
(Normal
Opera-
tion)
Low Hi-Z
73 256Hz/ROM.CORE O
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
(Normal
Opera-
tion)
Low Low
74 CAP R/F O
Capstan driver rotating direction control
RVS = "High", FWD = "Low"
Low Low Low
75 P_ON(H) O
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 = High
Low Low High
76 CAP.ET O
Capstan motor control voltage supply terminal
When higher than Drive Reference Voltage: Accelerated
When lower than Drive Reference Voltage : Current off High
PWM=
0V
Low
High
PWM=
0V
77 CYL.ET O
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
Low
PWM=
5.000V
Low
Low
PWM=
5.000V
78 P.FAIL(L) I
Power Failure Detection Input terminal
Input = "L", Power Failure Mode
In In In
52
NV-VP32GN / NV-VP32EE