Signal Name Abbreviations - Philips VR109/55 Service Manual

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Signal Name
A-COM Audio Head Common
A-MUTE Audio Mute Control Signal
A-PB/REC Normal Audio Play Back/Record
Signal
AE-H Audio Erase Head
AFC Auto Frequency Control Signal
AL+12V Always +12V with AC Plug
Connected
AL+44V Always +44V with AC Plug
Connected
AL+5V Always +5V with AC Plug
Connected
AL-28V Always -28V with AC Plug
Connected
a~j Display Segment Output
CHARACTER OSD Character Signal
C-CONT Capstan Motor Control Signal
C-DRIVE Capstan Motor Driver Signal
C-F/R Capstan Motor Forward/Reverse
C-FG Speed Data of Capstan Motor
C-ROTA Color Phase Rotary Switching
Signal
C-SYNC Composite Synchronized Pulse
V-Sync+H-Sync
CM GND Ground for Capstan Motor
CTL(+) Capstan Motor Control Pulse
CTL(-) Capstan Motor Control Pulse
D-COM Drum Motor Common
D-CONT Drum Control Signal
D-FG Drum Motor Speed Data
D-PG Drum Motor Angle Position Detect
D-REC-H Delayed Record Control
D-U Drum Motor Control Signal
D-V Drum Motor Control Signal
D-V SYNC Dummy Vertical Synchronized
Pulse
D-W Drum Motor Control Signal
END-S Tape End Position Detect Signal
FE-H Full Erase Head
FE-H GND Ground for Full Erase Head
FG GND Ground for C-FG
F1, F2 Filament Voltage 1,2
GND Ground (DC 0V)

SIGNAL NAME ABBREVIATIONS

Description
06/28/2012
Signal Name
G1~G4
H-SYNC
KEY -1
KEY -2
I2C-BUS-DATA Serial Data for Tuner
I2C-BUS-CLK
LD-M(+)
LD-M(-)
LD-SW
LM-FWD
LM-REV
LINE-IN
LINE-IN-F
LINE-OUT
MOD-A
MOD-V
OSD-
BLUEBACK
P-DOWN-L
P-ON+5V
P-ON+9V
P-ON-L
PB-CTL
PG(+)
PG(-)
REC-CTL(+)
REC-CTL(-)
REC-SAF-SW
REMOCON
RESET
RF-SW
ST-S
T-REEL
TIMER+5V
TU-AUDIO
TU-VIDEO
TV/VCR
V(L)
V(R)
1-7-1
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Description
Grid Control Output 1~4
Horizontal Synchronized Pulse
Key Scan Input Signal 1
Key Scan Input Signal 2
Serial Clock for Tuner
Loading Motor Forward Drive
Loading Motor Reverse Drive
Deck Mode Position Detector
Switch
Loading Motor Forward
Loading Motor Reverse
Line Audio In Rear
Line Audio In Front
Line Audio Out
Modulator Audio Output Signal
Modulator Video Output Signal
OSD Blueback Signal
Power Voltage Down Detector
+5V at Power-On Signal
+9V at Power-On Signal
Power-On Low Signal
Playback Control Signal
PG Sensor Signal (+)
PG Sensor Signal (-)
Record Control Signal(+)
Record Control Signal(-)
Rec Safety SW Detect
Remote Control Signal
System Reset Signal
Head Switching Pulse
Tape Start Position Detect Signal
Take-Up Reel Sensor
+5V at Timer
Tuner Audio Input Signal
Tuner Video Input Signal
TV/VCR Control
Video Head (L)
Video Head (R)
H67T0SNA