Video Block Diagram - Philips 14PV120 Service Manual

Video Block Diagram

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
C-VIDEO
TO CHROMA BLOCK
TU001
VIDEO OUT
24
JK701
V-IN
JK703
Q705
V-IN
20 BUFFER
V-OUT
19
Q703 BUFFER
WF5
TP003
TU1-VIDEO
V-OUT
TO CHROMA
Q401
VIDEO
BLOCK
BUFFER
TP010
GND
1-7-17
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.
FROM /TO
SERVO/SYSTEM
CONTROL BLOCK
IC401
(VIDEO/AUDIO SIGNAL PROCESS) 65
WF4
BYPASS AGC
TUNER1
48
SCART
52
LINE
54
56 CHARA.
SCART
INS.
LINE
PB/EE
1/2
MUTE
TUNER
PB/EE
MUTE
FBC
R P
61
AGC
63
58 59
REC-VIDEO SIGNAL
SDA
SCL
43 46 68 69 78 79
SERIAL
Y. DELAY DECORDER
R P
LUMINANCE
SIGNAL
PROCESS
Y
CCD 1H DELAY
REC FM
+
AGC
C
CHROMINANCE
SIGNAL
PROCESS
R P R P
RF-SW/C-ROTA
Y/C
MIX
VXO
PB-H OUT
28 29 21 44
WF2
X401
TP008
4.43MHz
C-PB
WF6
PB-VIDEO SIGNAL MODE: SP/REC
(DECK ASSEMBLY)
CL401
96
V(R) 1
SP
95 V-COM 2
HEAD
93 V(L) 3
AMP
94
WF1
TP002
RF-SW
D-REC-H
D-REC-H 80
RF-SW
C-ROTA
70
D-V-SYNC
D-V-SYNC
62
FROM/TO SERVO/SYSTEM
CONTROL BLOCK
V-ENV
V-ENV 84
C-SYNC
C-SYNC 67
TRICK-H
SECAM-H
IC471 (PAL/SECAM DECTECOTR)
28
1
29
PAL/SECAM
17
12 DETECTOR
2
16
14
1-7-18
Comparison Chart of
Models & Marks
Model Mark
14PV225/07 M
14PV225/01 N
14PV225/58 O
14PV225/39
P
14PV422/07 Q
14PV422/01 R
14PV422/58 S
14PV422/39 T
14PV125/07 U
14PV125/01 V
14PV125/58 W
14PV125/39 14PV125/39 X
14PV120/07 Y
14PV425/07
Z
CYLINDER ASSEMBLY
VIDEO (R)
HEAD
VIDEO (L)
HEAD
P, T, X
T6410BLV