Philips DVD740VR, Service Manual, Page: 29 / 107

Servo/System Control Block Diagram
BLOCK DIAGRAMS <VCR Section>
1-10-1 1-10-2 H9330BLS
M
M
LOADING
MOTOR
CYLINDER ASSEMBLY CAPSTAN MOTOR
DRUM
MOTOR
PG
SENSOR
CONTROL
HEAD
CL287
5 5 CTL(+)
6 6 CTL(-)
CL504
AC HEAD ASSEMBLY
MAIN CBA
KEY- 2
POWER LED
CAS LED
REC LED
VCR LED
DVD LED
TIMER LED
C-FG
C-CONT
D-FG
D-PG
ST-S
T-REEL
C-F/R
KEY- 1
REMOCON-IN
CTL(+)
RESET
REC-SAF-SW
PG-DELAY
CTL(-)
D-V SYNC
D-REC-H
DAVN-L
RF-SW
H-A-SW
C-ROTA
END-S
14
90
89
94
95
76
87
10
4
80
34
78
2
13
15
18
65
20
16
31
8
7
LM-FWD/REV 81
D-CONT 77
(DECK ASSEMBLY)
T-REEL
Q515
RESET
Q506
S-REEL 79
SW-POINT
AL+5V
VR501
TIMER+5V
S-REEL
PS502
TP502
IIC-BUS SDA
IIC-BUS SDA
IIC-BUS SCL
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
Hi-Fi-H-SW
A-MODE
OUTPUT SELECT
A-MUTE-H
Hi-Fi-H-SW
A-MODE
H-A-COMP
17
V-ENV
6
P-ON-H
C-POW-SW
P-ON-H
C-POW-SW
P-DOWN-L
67
66
86 P-DOWN-L
OUTPUT SELECT
SW506
TO
VIDEO BLOCK
TO
Hi-Fi AUDIO
BLOCK
TO
AUDIO BLOCK
2 2 KEY-2
6 6 POWER-LED
4 4 CAS-LED
5 5 TIMER-LED
KEY SWITCH
CN505
D651
D653
D652
D654
CN651
AL+5V
AL+5V
FRONT JACK CBA
SDA
SCL
IC502 (MEMORY)
72
61
19
83
IIC-BUS SCL
D-V SYNC
D-REC-H
DAVN-L
RF-SW
H-A-SW
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
OUTPUT SELECT
IIC-BUS SCL 71
LD-SW
REMOTE1
9
AL+15V/+12V
AL+12V(1)
AL+5V
AL+5V
SW507
P-ON+5V
LD-SW
AL+5V
D555
S-LED
TO
POWER
SUPPLY
BLOCK
KEY
SWITCH
TP501
Q507
Q502
Q511 D508
D506
D507
Q508
Q509
Q501
SENS-INH
M
CAPSTAN
MOTOR
IC501
(SERVO/SYSTEM CONTROL)
5
6
CL502
12 C-F/R
11 AL+15V/+12V
10 AL+12V(1)
9 P-ON+5V
8 GND
7 C-FG
6 C-CONT
5 GND
4 D-FG
3 LM-FWD/REV
2 D-CONT
1 D-PG
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q503
REC-SAFETY
END-S
CTL 97
FF/REW-L 84
Q510
TP503
CTL
74
23
24
25
26
29
30
POWER
CAS
TIMER
STAND-BY
REC
DVD
VCR
TO DVD SYSTEM
CONTROL BLOCK
<DVD SECTION>
" " = SMD
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
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.