Panasonic PV-L452 Service Manual page 169

SYSTEM CONTROL BLOCK DIAGRAM
MAIN C.B.A.
LOADING S301
MOTOR 1
TO TP BOARD 36
(FOR EVF ADJUSTMENT) LOADING
S301
MOTOR 0
35
+ -
FP1
M
28
LOADING
MOTOR
FP1
27
MECHANISM FPC UNIT
TO POWER SUPPLY
BLOCK DIAGRAM
REG +4.5V
SAFETY TAB SW
FP7
2
CASSETTE DOWN SW
FP7
9
MODE SELECT SW
FP7
PIN NO. OF IC6001 POSITION 1 POSITION 2
4
MODE (4) (9)
FP7
STOP/REW L
L
3
STANDBY H L
FP7
EJECT/REC/PB/PAUSE/CUE/REV/FF L H
1
FP7
6
SUPPLY FP7
REEL
8
SENSOR
FP7
12
FP7
14
SENSOR SUPPLY
LED PHOTO TR
TO VIDEO
BLOCK DIAGRAM
TO AUDIO
BLOCK DIAGRAM
CYLINDER UNIT
FLYING FP6
ERASE OSC
FLYING
9
ERASE
HEAD
IC6007 (LOADING MOTOR DRIVE) IC6001 (SYSTEM CONTROL MICROCONTROLLER)
2 UNREG
1 DRIVE 5 7 LOADING MOTOR REV (H)
LOGIC
7 DRIVE 4 8 LOADING MOTOR FWD (H)
8
VCC
3
Q6010
Q6021
6 POWER ON (H)
UNREG
(TO Q1001(B))
POWER ON (L)
SW UNREG
Q6026
(FROM Q1002(C))
SW
BATTERY VOLTAGE
NOT USED
REG +4.5V
85 BATTERY UNDERCUT
77 SAFETY TAB BROKEN (H)
64 CASSETTE DOWN (L)
4 MODE SW POSITION 1
9 MODE SW POSITION 2
IC6203
TAKEUP
REEL TP6007
SENSOR
REG +4.5V 90 TAKEUP REEL PULSE
TP6004
80 SUPPLY REEL PULSE
Q6013
SENSOR
91 SENSOR LED ON (H)
LED DRIVE
86 SUPPLY PHOTO TR (L)
NOT USED
Q6202
Q6201
REG +4.5V
IC6006
IC6002
+4.5V
UNREG 2 3 2 RESET 1 25 RESET (L)
REGULATOR
36 VDD
51 VDD
73 VDD
VIDEO DELAY REC (H) 27 VIDEO DELAY REC (H)
AUDIO DELAY REC (H) REG +4.5V
Q6004
Q6008
26 FLYING ERASE ON (H)
X6001
37 OSC 1
OSC
(8MHz)
38 OSC 2
IC6005 (CLOCK IN)
TP6001
CLOCK (32KHz) 40 1 CLOCK (32KHz) VDD 8
IC6005 CS (H) 30 5 CS (H)
TP6015
SERIAL
SERIAL CLOCK 14 6 OSC IN 3
CLOCK
SERIAL
SERIAL DATA 1 15 7 OSC OUT 2
TP6014 DATA 1
SERIAL DATA 0 16
IC6008 (MEMORY)
NOT USED
4 SERIAL CLOCK
5 SERIAL DATA 0
6
SERIAL DATA 1
Q6002
IC6008 CS (H) 45 3 CS (L)
NOT USED
8 RESET (L)
(TO IC3001(64))
SERIAL CLOCK
(TO IC3001(63))
SERIAL DATA 0
(TO IC3001(62))
LOAD 57
LOAD
(TO IC3001(78))
OSD BLANKING 59
OSD(DATE/TIME) DATA
TO/FROM VIDEO
61
OSD(DATE/TIME) DATA
BLOCK DIAGRAM
(TO IC3001(75,77))
OSD BLANKING 58
OSD DATA
OSD DATA 60
(TO IC3001(60))
ROTARY SW 98
ROTARY SW
(FROM IC3501(27))
ENV-VOLTAGE 89
ENV-VOLTAGE
(FROM IC501(40))
CAM SERIAL CLOCK 11
CAM SERIAL CLOCK
(FROM IC501(41))
CAM SERIAL DATA 0 12
CAM SERIAL DATA 0
TO/FROM PROCESS
BLOCK DIAGRAM
(TO IC501(42))
CAM SERIAL DATA 1 13
CAM SERIAL DATA 1
(TO IC501(59))
AUDIO RESET (L) 44
CAM RESET (L)
(TO Q4001(B)) TO AUDIO
AUDIO RESET (L) BLOCK DIAGRAM
1
*
Refer to IC6001 KEY VOLTAGE CHART.
2
* NOTE
In case that the dew sensor detects dew condensation,
the voltage of pin 88 becomes approx. 0.3V or over.
* 3
NOTE
To defeat the safety function, connect a diode between TP6011 and
TP6012, or select the H. Safety defeat in service mode. Refer to NOTE1 of
"Extension cables for service" in service notes section for more information.
FP4
IR DATA 5
2
FP4
3
Q6006
IR ON (L) 49
X6002
OSC
+4.5V
(32KHz)
NOT USED
FP12
KEY DATA 2 84
2
FP12
KEY DATA 3 82
4
FP12
KEY DATA 4 81
5
FP12
SP (L)/SLP (H) 63
6
FP12
DISPLAY (L) 62
7
FP12
EJECT SW 3
9
FP12
SCAN 4
94
8
FP13
PHOTO ON (L) 43
8
FP13
POWER SW 1
10
FP13
REC (L) 2
11
FP13
SCAN 1 97
5
FP13
SCAN 2 96
9
FP13
SCAN 3 95
* 2
4
FP13
DEW SENSOR 88
7
DEW +B 92
+4.5V
* 3
TP6011
KEY IN 1 10
TP6012
Q6012
CLOCK +B 47
D6001
LAMP SOCKET UNIT
U6501
IR
RECEIVER
1 3
NOT USED
TOP OPERATION UNIT
* 1
SW
* 1
SW
1
*
SW
SP/SLP
DISPLAY
EJECT
SIDE L FPC UNIT
POWER
PHOTO
CAMERA
OFF
VCR
REC
DEW
SENSOR
(FROM IC1001(17))
VOLTAGE DOWN
FROM POWER SUPPLY
BLOCK DIAGRAM
(FROM FP2(20))
BACK UP VOLTAGE
SYSTEM CONTROL BLOCK DIAGRAM
PV-L452/PV-L652