Signal Name Abbreviations - Philips VR540/39 Service Manual

[ VR540/ (39, 58), VR740/ (02, 07, 16, 58), VR742/ (16, 39, 58) ]
Signal Name
4.43MHz 4.43MHz Clock
SCART 1 8Pin Output Control
8POUT-1
Signal
SCART 2 8Pin Output Control
8POUT-2
Signal
A-COM Audio Head Common
A-IN 1, 2 Audio Signal Input 1, 2
A-MODE Hi-Fi Tape Detection Signal
Audio Mute Control Signal
A-MUTE-H
(Mute = "H")
A-OUT 1, 2 Audio Signal Output 1, 2
Normal Audio Play Back/Record
A-PB/REC
Signal
AE-H Audio Erase Head
Automatic Frequency Control
AFC
Signal
AGC IF AGC Control Signal
Always +12V/+20.5V with AC Plug
AL+12/+20.5V
Connected
Always +9V with AC Plug
AL+44V
Connected
Always +5V with AC Plug
AL+5V
Connected
Always +9V with AC Plug
AL+9V
Connected
AMPC CTL AMP Connected Terminal
AMPVcc AMPVcc
AMPVREF
V-Ref for CTL AMP
OUT
AMPVREF V-Ref for CTL AMP
IN
A/D Converter Power Input/
AVcc
Standard Voltage Input
C-CONT Capstan Motor Control Signal
Capstan Motor FWD/REV Control
C-F/R
Signal (FWD="L"/REV="H")
Capstan Motor Rotation Detection
C-FG
Pulse
C-POW-SW Capstan Power Switching Pulse
C-POWER-
Capstan Power Switching Pulse
SW

SIGNAL NAME ABBREVIATIONS

Function
Signal Name
C-ROTA
C-SYNC
C-SYNC
CLKSEL
COLOR-IN
CTL (+)
CTL (-)
CTLAMPout
D-CONT
D-PG
D-REC-H
D-V- SYNC
DAVN-L
DRV-CLK
DRV-DATA
DRV-STB
END-S
FE-H GND
FF/REW-L
FSC-IN
[4.43MHz]
FTV-IN
H-A-COMP
H-A-SW
Hi-Fi-A (L)
Hi-Fi-A (R)
Hi-Fi-COM
HiFi-H-SW
HLF
2
I C BUS- SCL
2
I C BUS- SDA
1-6-3
Function
Color Phase Rotary Changeover
SIgnal
Composite Synchronized Pulse
Composite Synchronized Pulse
Clock Select (GND)
SECAM or MESECAM Chroma
Video Input Signal at Super
Impose
Playback/Record Control
Signal (+)
Playback/Record Control
Signal (-)
To Monitor for CTL AMP Output
Drum Motor Control Signal
Drum Motor Pulse Generator
Delayed Record Signal
Dummy V-sync Output
VPS/PDC Data Receive = "L"
LED Clock Driver IC Control Clock
LED Clock Driver IC Control Data
LED Clock Driver IC Chip Select
Signal
Tape End Position Detect Signal
Ground for Full Erase Head
CTL Amp Gain Switching Signal
(FF/REW="L")
4.43MHz Clock Input
Comparator Input of Video Signal
for Follow TV
Head Amp Comparator Signal
Video Head Amp Switching Pulse
Hi-Fi Audio Head (L)
Hi-Fi Audio Head (R)
Hi-Fi Audio Head Common
HiFi Audio Head Switching Pulse
LPF Connected Terminal (Slicer)
2
I C BUS Control Clock
2
I C BUS Control Data
HE473SNA