Block Diagrams - Philips VR140/02 Service Manual

[ VR140/ (02, 07, 39, 58), VR840/ (07, 16, 39, 58) ]
Servo/System Control Block Diagram
Comparison Chart of
Models & Marks
Model Mark
VR140/02 N
VR140/07 O
VR140/39 P
VR140/58 Q
VR840/07 R
VR840/16 S
VR840/39 T
VR840/58 U
Q504
ST-S
SENSOR CBA
Q505
END-S
SENSOR CBA
(DECK ASSEMBLY)
CL287 CL504
5 CTL(+) 5
CONTROL
6 CTL(-) 6
HEAD
AC HEAD ASSEMBLY
EASY
-LINK
CYLINDER ASSEMBLY
PG
SENSOR
DRUM
M
MOTOR
M
LOADING
MOTOR

BLOCK DIAGRAMS

NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
" " = SMD
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
MAIN CBA
SW507
LD-SW
AL+5V
TP506 Q503 PS503
END-S
T-REEL S-REEL
R,S,T,U
P-ON+5V
IC771
(COMPARATOR)
TU-VIDEO
9
FROM
8
VIDEO
BLOCK
V-IN1
11
10
JK101
CL101 CL151
10 5 EASY-LINK 5
JACK CBA
CAPSTAN MOTOR
CL502
12 P-ON+15V
CAPSTAN
M
11 AL+12V(2)
MOTOR
10 GND
9 D-PFG
8 D-CONT
7 LM-FWD/REV
6 GND
5 C-CONT
4 C-F/R
3 C-FG
2 P-ON+5V
1 AL+12V/+20.5V
1-9-11
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
IC501
AL+5V TP501
(SERVO/SYSTEM CONTROL)
CTL
97 CTL AMP OUT
R,S,T,U
D502
S-LED
Q502 84 FF/REW-L
9 LD-SW
95 CTL(+)
94 CTL(-)
10 ST-S
4 END-S
80 T-REEL
79 S-REEL
TIMER+5V
RESET 34 RESET
R,S,T,U
Q501
P-ON+5V
Q771,
14
Q772
AND 4
2 64 FTV-IN
5
13
R,S,T,U
Q621
DRIVE 63 LINK-OUT
AL+5V 85 LINK-IN
AL+5V
VR501
PG-DELAY
2
SW-POINT
AL+5V 31 REC-
SAF-SW
SW506
P-ON+15V
REC-
AL+12V
SAFETY
90 D-PG
77 D-CONT
81 LM-
FWD/REV
76 C-CONT
78 C-F/R
87 C-FG
P-ON+5V
AL+12V/+20.5V
R,S,T,U
C-POW-SW
66 C-POW-SW
FROM/TO P-ON-H
67 P-ON-H
POWER
P-DOWN-L
86 P-DOWN-L
SUPPLY
P-OFF-H
BLOCK
73 P-OFF-H
TP507
KEY
KEY- 1 7
SENS-INH
SWITCH
KEY
KEY- 2 8
SWITCH
FP562
IC561
(LED DISPLAY)
DRV-DATA 68 28 DRV-DATA G1 23
DRV-STB 69 2 DRV-STB G2 22
DRV-CLK 70 1 DRV-CLK G3 21
G4
20
S1 7
S2 8
S7 13
S8 14
S9 16
S10 17
RS501
REMOTE
REMOCON-IN 14
SENSOR
P
AUDIO-SW-1 29
AUDIO-SW-2 30
A-MUTE-H 83
R,S,T,U
Hi-Fi-H-SW 19
A-MODE 32
LINE-MUTE 28
IIC-BUS SDA 72
IIC-BUS SCL 71
D-REC-H 33
RF-SW 18
C-ROTA
15
D-V SYNC
13
DAVN-L 20
H-A-SW 16
H-A-COMP 17
V-ENV 6
C-SYNC 58
TRICK-H 65
SECAM-H 61
P,T
1-9-12
LED DISPLAY
TU701(TUNER UNIT)
3 SDA
12 SDA
5 SCL
11 SCL
IC503 (MEMORY)
5 SDA
6 SCL
AUDIO-SW-1
AUDIO-SW-2
TO
IIC-BUS SDA
AUDIO BLOCK
IIC-BUS SCL
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
FROM/TO
Hi-Fi-H-SW
Hi-Fi AUDIO
A-MODE
BLOCK
LINE-MUTE
IIC-BUS SDA
IIC-BUS SCL
D-REC-H
RF-SW
C-ROTA
D-V SYNC
DAVN-L FROM/TO
VIDEO BLOCK
H-A-SW
H-A-COMP
V-ENV
C-SYNC
TRICK-H
SECAM-H
HE270BLS