System Control Block Diagram - Panasonic PV-4601 A Service Manual

SYSTEM CONTROL BLOCK DIAGRAM

MODE SELECT SWITCH
PIN NO OF IC6001 A B
LOADUNLOAD
(96)(95)(94)(93)
MODE
FF/REW L H
STOP
PLAY/CUE/SLOW/STILL L H
STOP/STANDBY H L
REVIEW H H
EJECT H H
REV
EJECT
STBY
P2504 P2501 P6201
4 1 1
FF/REW
C B A D
P2504 P2501 P6201
PLAY/CUE
6 15 15
/SLOW/STILL
P2504 P2501 P6201
7 16 16
P2504 P2501 P6201
3 2 2
R6078
Å–6:I/O MATRIX CHART
R6079
D6007 WITH Hi-Fi
D6008 WITH SPATIALIZER
R6080
WITH AUTO CLOCK SET
D6009
R6081
D6010 WITH S-VHS
--------
D6011
R6082
D6012 -------- +5V
D6013 WITH PV-4601 B
WITH VCR PLUS
–6
D6014
AND CABLE CHANNEL CHANGER
WITH 2HEAD
D6015
D6016 WITH FIP-A/B
D6017
WITH SET UP/DOWN
D6018 WITHOUT VCR PLUS
D6019 WITH LINE 2
D6020 WITH PX MODEL
IR
D6021 WITH EP INDICATION +5V
RECEIVER
WIRE JUMPER OR DIODE IS USED
FOR ABOVE REF.NO.(D¥¥¥¥).
Q6010
Q6009
SW+12V
TAKEUP SUPPLY
PHOTO TR PHOTO TR
SW6001
SAFETY TAB SW
IC6002
(REEL SENSOR)
TO HEAD AMP
1
/AUDIO CIRCUIT
BY SHORTING TP6001 AND GND,
Q6002
ANY OPERATION CAN BE DONE
WITHOUT A CASSETTE(FOR SERVICE).
D6001
(SENSOR LED) TP6011
2
THIS IS USED FOR MICROPROCESSOR
+14V
JUDGMENT POINT.
IC6001
X6001
(14MHz)
OSC 1
C D 33
OSC
H L OSC 2
34
H H A
H H
Q6005, Q6006
L H
Q6007, Q6008
H L
(FROM P1051(3))
RESET RESET
19
POWER DOWN(L)
+5V
56 POWER DOWN(L)
MODE SW POSITION A
96
/KEY DATA 0
a
MODE SW POSITION B
95
/KEY DATA 1
b
MODE SW POSITION C
94
/KEY DATA 2
c
MODE SW POSITION D
93
/KEY DATA 3
d
92 KEY DATA 4
91 KEY DATA 5
90 KEY DATA 6
89 KEY DATA 7
88 KEY DATA 8
2 SCAN 3/SENSOR LED ON(H)
1 SCAN 2
100 SCAN 1
U6301
47 IR DATA
TAKEUP PHOTO TR(L)
83
SUPPLY PHOTO TR(L)
82
VDD
35
+5V
TP6001
–1
TAKEUP REEL PULSE
84
/SERVICE(L)
TNR CH FREQUENCY LOCK(L)
B
/UNLOCK(H)
SAFETY TAB
77
BROKEN(H)
VIDEO
37
SW
DELAY REC(H)
+12V
R6074 SPATIALIZER CONTROL(H/L/OFF)51
(WITH SPATIALIZER)
Q6003
NOT USED
Q6001
–2
(WITH CM ADVANCE)
NOT USED
PIN
AUDIO MUTE(H)
5
5
PIN
VIDEO EE(H)
11
19
PIN
INPUT SELECT 1
52
11
–5
PIN
INPUT SELECT 2
53
3
PIN
Hi-Fi AUDIO HEAD SW 39
21
PIN
49
Hi-Fi(H)/NORMAL(L)
25
PIN
PB Hi-Fi AUDIO(H)
46
22
Q4208
MAIN(H)/SAP(L)
30 PIN
1
STEREO(H)/MONO(L) 31
MTS SIGNAL(L)
87
SAP SIGNAL(L)
86 (WITH Hi-Fi AUDIO)
EDS CLOCK DATA 55
DATA SLICER CS(L)
28
SERIAL CLOCK
16
SERIAL DATA 1
17
TO/FROM VIDEO/AUDIO
TV(H)/VCR(L)
3
/HEAD AMP/MTS/SAP
PB(L) /TIMER/OPERATION
6
/UHF/VHF TUNER
7.16MHz
44
/TV DEMODU CIRCUIT
AIP CTL SIGNAL
50
SIGNAL(L)
81
AUDIO DEFEAT(H)
29
SERIAL DATA 0
18
OSD-CS(L)
27
PANEL CONTROL CS(L)
14
CUE/REV/SLOW/STILL(L) 12
SIGNAL LINE(H)
78
LP/SLP(H) 7
–4
SLP(H)
8
79
AUTOMATIC FREQUENCY
80
CONTROL
DTS CS(H) 4
PANEL RESET(L) 15 (WITH
R4608
MONORAL)
(WITH
V-MASK(H) 36
Hi-Fi AUDIO)
BLACK DETECT
54
Q4601
(L)
R4607
BEEPER 45 DRIVE
LOADING MOTOR
9
REVERSE(H)
LOADING MOTOR
10
FORWARD(H)
P4201
IC3301
5
P4202
19
DATA
SLICER
P4202
11
P4201 DATA
5 CLAMP
SLICER
3
P4203
21
21
DATA
P4203
10
OUTPUT
25
22
P4203
22
P4201
1
IC7051
COMPARATOR
OUTPUT CONTROL
SIGNAL EXIST(L)
NO SIGNAL(H)
10 8
C7058 R7065
IC6003
9
CONTROL
LOGIC
1
8
SW1
2
SW3
7 3
IC6003
9 7
SW1
+14V
6
SW3
3
CONTROL
LOGIC
1
(PV-4601 A,PV-4601-K,PV-4651,PV-4651-K)
(WITH AUTO CLOCK SET) NOT USED
R3301
C3305
C3306
(FROM IC3001(25))
15 LPF
VIDEO
(FROM U/V
Q7051
TUNER/TV
V.SYNC SEPA. 6 BUFFER
DEMODU(18))
AMP
TUNER VIDEO
PHASE
4
COMP.
1/32 DIVIDER
C7053
VCO
VCC
7 9 1 2 3
X7501
503KHz R7061
+5V
R7055
C7054 C7055
(PV-4601 B)
(FROM U/V TUNER/TV
DEMODU(9))
SIGNAL(L)
(PV-4601 A,PV-4601-K,PV-4651,PV-4651-K)
PIN9 PIN10
OF OF
MODE SW1 SW2 SW3 SW4
5
IC6001 IC6001
SW2
LOADING L H ON OFF OFF ON
UNLOADING H L OFF ON ON OFF
SW4
BRAKE H H
OFF ON OFF ON
3
(PV-4601 B)
SUPPLYING THE DC VOLTAGE AFTER CUTTING THE
JUMPER WIRE CAUSES AN UNLOADING OPERATION
LOADING
SEQUENCE FOR THE REMOVAL OF A JUMMED TAPE.
MOTOR
Å–3 J6004
+ -
4:TAPE SPEED
PIN8 PIN7
Å–3 J6005
SP L L
LP L H
SLP H H
SW2
5:INPUT SELECT
SW4
MODE
SIMUL
5
TUNER
LINE1 LINE2
SIGNAL
CAST
INPUT
L L H
SELECT 1
INPUT
L H H
SELECT 2
H
L