Panasonic PV-V4525S, Service Manual

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13 12 11 10 9 8 7 6 5 4 3 2 1 26
14 15 16 17 18 19 20 21 22 23 24 25 27
SW +5V M
(TO MAIN C.B.A. P6201)
CAP VM (+16V)
CAP FG
GND (FG)
TL
CAP ET
CAP F/R
GND (M)
1
2
3
4
5
6
7
8
CNF PCI CT2 CT1 CST GND VG R IN F IN OUT2 L GND OUT1 VM2
EC PG+ PG- PG OUT PFG VCC COM VM M1 M2 RNF M3
LOWER
SATURATION
PREVENT
CIRCUIT
SOFT
SWITCH
STARTING
CONTROL
LOGIC
TSD
CONTROL
LOGIC
RRE-DRIVE
AMP AMP
MOTOR
DRIVE
PRE-DRIVE
MOTOR
DRIVE
SIGNAL
GENERATOR
SELECTOR
DIFFERENTIAL
AMP
DIFFERENTIAL
AMP
DIFFERENTIAL
AMP PG/FG
COMPOSER
15
16
17
22
23
24
25
26
27
21
CAPSTAN
MOTOR
COILS
HALL
HALL
HALL
H3-
H3+
H1-
H1+
H2-
H2+
A1
A2
A3
VH+
MOTOR
DRIVE DIFFERENTIAL
AMPLIFIRE TORQUE
CONTROL TL
AMP
EC
AMP
DEF
AMP
POSITION
SIGNAL
PROCESS TORQUE
DIRECTION
SELECT
HALL
POWER
VM
TL
EC
ED/S
19
9
10
11
CAPSTAN
FG
HEAD
IC6201
CYLINDER/LOADING MOTOR DRIVE IC-DETAIL BLOCK DIAGRAM
CYLINDER SERVO
CAPSTAN MOTOR ASS'Y BLOCK DIAGRAM
CAPSTAN SERVO
CAPSTAN MOTOR DRIVE IC
NOTE:CAPSTAN MOTOR ASS'Y IS SUPPLIED AS A UNIT ONLY.
I/O CHART OF IC6001
I/O CHART OF IC6001
PV-V4525S/PV-V4535S-K/PV-455S-K
1 KEY 1 I Input terminal for the KEY OPERATION DATA 1.
2 CODE 1 I Input terminal for the Model setting 1.
3 CODE 2 I Input terminal for the Model setting 2.
4 T.S.CUVRE I Input terminal for S-CURVE of Tuner AFC at channel selecting.
5 KEY 2 I Input terminal for the KEY OPERATION DATA 2.
6 NC - Not used.
7 S PHOTO I Input terminal for the Tape End sensor detection.
8 T PHOTO I Input terminal for the Tape Beginning sensor detection.
9 TRACKING ENV. I Input terminal for the VIDEO ENVELOPE signal.
10 MTS MODE I Input terminal for the MTS MODE detection.
11 CURRENT LIMIT O Control terminal for the CAPSTAN CURRENT LIMIT.
12 NC - Not used.
13 ART. V/H/N O Output terminal for the ARTIFICIAL V-SYNC.
14 REMOCON I Input terminal for the REMOTE CONTROLLER OPERATION DATA.
15 NC - Not used.
16 NC - Not used.
17 NC - Not used.
18 VIDEO H.SW O Output terminal for the VIDEO HEAD SWITCHING signal.
19 AUDIO H.SW O Output terminal for the HiFi AUDIO HEAD SWITCHING signal.
20 NA PB SW ON L O Recording control signal for the Linear Audio.
21 NC - Not used.
22 DEFEAT H O Output terminal for muting at channel selecting.
23 HIFI PB H I HIFI PLAYBACK: "High" NORMAL PLAYBACK: "Low"
24 NC - Not used.
25 NC - Not used.
26 V D REC H O VIDEO DELAY REC: "High"
27 NO S TAB L I Input terminal for the SAFETY TAB detection.
28 A MUTE H O AUDIO MUTING: "High"
29 3CH Hiz/4CH L O CH3: "Hiz" CH4: "Low"
30 POS. SW4 I Input terminal for the MODE SELECT SW POSITION 4.
31 POS. SW3 I Input terminal for the MODE SELECT SW POSITION 3.
32 POS. SW2 I Input terminal for the MODE SELECT SW POSITION 2.
33 POS. SW1 I Input terminal for the MODE SELECT SW POSITION 1.
34 RESET L I Input terminal for the RESET: "Low".
35 NC - Not used.
36 NC - Not used.
37 +5V (D) - VCC (5V) for Digital port.
38 12MHz IN I Main clock (12MHz) OSC input terminal.
39 12MHz OUT O Main clock (12MHz) OSC output terminal.
40 GND (OSC) - Digital GND for OSC circuit.
41 NC - Not used.
42 NC - Not used.
43 NC - Not used.
44 LC OSC IN I Input terminal of the LC Oscillation (For OSD dot clock).
45 LC OSC OUT O Output terminal of the LC Oscillation (For OSD dot clock).
46 NUB (GND) - Connected to the GND.
47 4FSC LPF I OSC Filter connection terminal for Internal sync generator.
48 FSC IN I Sub carrier (FSC) input terminal for sync generator.
49 GND (OSD) - GND terminal for OSD circuit.
50 CV IN I Input terminal for COMPOSITE VIDEO signal.
Pin
No.
Signal Name I/O Description
51 BW H/COLOR L I Not used.
52 CV OUT O Output terminal for COMPOSITE VIDEO signal.
53 5V (OSD) - Power supply terminal for OSD.
54 HLF I LPF connection terminal for slicer.
55 V HOLD I Capacitor connection terminal of the Reference voltage generator
circuit for the slicer.
56 CV IN (EDS) I COMPOSITE VIDEO signal input terminal for the slicer.
57 NUA (GND) - Connected to the GND.
58 FIP OFF L O FIP ON: "High" FIP OFF: "Low"
59 NC - Not used.
60 NC - Not used.
61 VCR H/TV L O TV: "Low" VCR: "High"
62 NC - Not used.
63 NC - Not used.
64 NC - Not used.
65 UNLOADING H O LOADING MOTOR control terminal.
66 PANE CS O FIP SERIAL CHIP SELECTOR.
67 LOADING H O LOADING MOTOR control terminal.
68 MASTER DATA 1 I/O SERIAL DATA output for FIP.
69 NC - Not used.
70 SCK 1 O SERIAL CLOCK output for FIP.
71 IIC CLK O Serial communication terminal (IIC CLOCK) for VIDEO IC/
FM AUDIO IC/EEPROM/TUNER.
72 IIC DATA I/O Serial communication terminal (IIC DATA) for VIDEO IC/
FM AUDIO IC/EEPROM/TUNER.
73 ROM CORE O ROM Correction confirmation mode.
74 CAP R/F O The rotation direction control terminal of the CAPSTAN driver.
75 NC - Not used.
76 CAP ET O CAPSTAN MOTOR control terminal.
77 CYL ET O CYLINDER MOTOR control terminal.
78 P FAIL L I Input terminal for the POWER FAILAR detection.
79 S REEL PULSE I Input terminal for the SUPPLY REEL PULSE.
80 T REEL PULSE I Input terminal for the TAKE-UP REEL PULSE.
81 SP L O REC/PLAY MODE: SP = "Low"
82 EX FF/REW L O Control signal filter select terminal in FF/REW mode.
83 P ON H O ON/OFF control terminal for the VCR POWER.
84 AVR L O Simplified AI PLAYBACK ON/OFF control.
85 SQPB IN H I Input terminal for the S-VHS PLAYBACK detection.
86 FG AMP OUT O Output terminal for the CAPSTAN FG AMP signal.
87 FG AMP IN I Input terminal for the CAPSTAN FG AMP signal.
88 GND (A) - GND for Analogue circuit.
89 NC - Not used.
90 CYL PFG I Input terminal for the CYLINDER PG/FG.
91 OREF O 1/2 VDD reference voltage output terminal for the Analogue AMP.
92 IREF I 1/2 VDD reference voltage input terminal for the Analogue AMP.
93 S CAS H - Low fix.
94 CTL HAED (-) I/O terminal for the CONTROL HEAD (-).
95 CTL HAED (+) I/O terminal for the CONTROL HEAD (+).
96 CTL AMP REF I Capacitor connection terminal for reference of the CONTROL AMP.
97 PB CTL OUT O Output terminal for the CONTROL AMP.
98 5V (A) - Power supply terminal for Analogue AMP.
99 5V (AD) - Reference power supply terminal.
100 NC - Not used.
Pin
No.
Signal Name I/O Description
PV-V4525S / PV-V4535S-K / PV-455S-K
19