Philips DVDR3545V/37, Service Manual

Page: 32 / 127

1-12-2
E9H90BLSV
Servo Block Diagram
SENSOR CBA SENSOR CBA
CONTR
OL
HEAD
CL504
CN1502
CN1504
AC HEAD ASSEMBLY
C-FG C-CONT D-PFG ST-S T-REEL C-F/R CTL(+) REC- SAF-SW PG-DELAY END-S
IC1501 (SERVO CONTROL)
65 74
CTL
76
CTL(-)
75 33 67 88 81
3
32 84 22
LM-FWD/REV
26
D-CONT
34
(DECK ASSEMBLY)
END-S
T-REEL T-REEL
ST-S
ST-S
Q1504
Q1503
Q1506
SW-POINT
AL+5V
VR1501
TP506
TP505
END-S TP507
SW1511
REC SW
LD-SW
87
AL+12V
AL+5V
AL+5V
SW1512
AL+18V
P-ON+5V(1)
MODE-SW
AL+5V
D1555
S-LED
5
CTL(+)
6
CTL(-)
1
AL+12V(1)
2
P-ON+5V(1)
3
C-FG
4
C-F/R
5
C-CONT
6
GND
7
LM-FWD/REV
8
D-CONT
9
D-PFG
10
GND
11
AL+12V
12
AL+18V
TP513
CTL
AL+12V(1)
MAIN CBA
CAPSTAN MOTOR
CYLINDER ASSEMBLY
DRUM MOTOR
PG SENSOR
M
M
LOADING MOTOR
M
CAPSTAN MOTOR
MOTOR DRIVE CIRCUIT
“
“ = SMD
TEST POINT INFORMA
TION
:INDICA
TES A
TEST POINT
WITH A JUMPER
WIRE A
C
R
OSS A HOLE IN
THE PCB
.
:USED
T
O
INDICA
TE A
TEST POINT
WITH A COMPONENT LEAD ON FOIL SIDE.
:USED
T
O
INDICA
TE A
TEST POINT
WITH NO
TEST PIN.
:USED
T
O
INDICA
TE A
TEST POINT
WITH A
TEST PIN.