Panasonic SV-AV30U / SV-AV20U / SV-AV20E / SV-AV20B / SV-AV20EN Service Manual ▷ View online
5 HOW TO REPLACE THE LITHIUM BATTERY
CAUTION:
1. Be sure to discharge the capacitor on FRONT C.B.A. before disassembling the Front C.B.A.
2. Be careful of the high voltage circuit on Front C.B.A. when servicing.
5.1. REPLACEMENT PROCEDURE
1. Remove the monitor C.B.A. (Refer to Disassembly Procedures.)
2. Unsolder the Lithium battery (Ref. No. “BT901” at component side of Monitor C.B.A.) and then replace it into new one. (Fig. B1)
Fig. B1
NOTE:
This Lithium battery is a critical component. (Type No.: ML614S-F9F Manufactured by Panasonic)
It must never be subjected to excessive heat or discharge
It must therefore only be fitted in requirement designed specifically for its use.
Replacement batteries must be of the same type and manufacture.
They must be fitted in the same manner and location as the original battery, which the correct polarity contacts observed.
Do not attempt to re-charge the old battery or re-use it for any other purpose.
It should be disposed of in waste products destined for burial rather than incineration.
5
SV-AV30U / SV-AV20U / SV-AV20E / SV-AV20B / SV-AV20EN
6
SV-AV30U / SV-AV20U / SV-AV20E / SV-AV20B / SV-AV20EN
6 BLOCK DIAGRAM
6.1. POWER BLOCK DIAGRAM
1M
POWER
REG 1.8V
DSC ON
NOREG2
MON ON
REG 2.8V
CAM ON
REG 2.5V
REG 2.1V
REG -5V
REG 5V
REG 3.2V
PWR ON
REG 12V
MON ON
33
SHORT AD
DETECTION
MALFUNCTION
POWER
7
(IC6003- )
FROM CONTROL
28
(IC6003- )
FROM CONTROL
TO MONITOR
6
(IC6003- )
FROM CONTROL
TO CONTROL
TO JACK P
TO EX INPUT
TO EX INPUT
TO CAMERA IF
TO EX INPUT
TO CAMERA IF
62
(IC6003- )
FROM CONTROL
TO CAMERA IF
7
(IC6003- )
FROM CONTROL
TO FRONT
51
(IC6003- )
FROM CONTROL
TO DSC
5
3
1
5
3
1
QR1105
S
2
1
4
5
3
4
3
1
4
5
4
3
1
5
Q1111
S
D
G
5
4
3
2
1
1
5
3
2
D
Q1112
5
4
3
2
1
1
3
5
2
32
7
1
4
3
2
6
5
+
-
-
+
8
(IC3458- )
FROM DSC
(BATTERY VOLTAGE)
BATT V
(IC6003- )
TO CONTROL
IC1106
(DC-DC CONVERTER)
IC1105
(5V CONTROL)
IC1108
(DC-DC CONVERTER)
IC1107
(DC-DC CONVERTER)
IC1104
(DC-DC CONVERTER)
IC1109
(2.5V REG.)
IC1111
(2.1V REG.)
IC1201
BATT A
CURRENT
CHARGE
BATTERY
(IC6003- )
TO CONTROL
IN
OUT
CE
SETTING
V OUT
CE
SENSOR
V OUT
OUT
IN
TO MONITOR
SETTING
V OUT
OUT
CE
IN
JACK P
TO
CONTROL
CHG
OUT
CE
IN
OUT
CE
IN
CE
OUT
SENSOR
V OUT
IN
Q1110
1,2,5,6
IN
CE
OUT
SENSOR
V OUT
MAIN CN
TO AUDIO
TO CONTROL
TO CONTROL
TO CONTROL
31
(IC6003- )
TO CONTROL
1
(PP6101- )
TO EVR
30
(IC6003- )
TO CONTROL
3
(IC6003- )
FROM CONTROL
5
(IC6003- )
FROM CONTROL
4
(IC6003- )
FROM CONTROL
NOREG
BATT+
T
ADPT SW2
ADPT SW
CHG ON
CHG CONTROL
TRE ON
ADAPT ON
REG 5V
NOREG
UCOM 3.2V
REG 4.5V
TO CONTROL
JACK C.B.A.
TO/FROM
(SV-AV30 ONLY)
SV-AV30U,SV-AV20U/E/B/EN
POWER BLOCK DIAGRAM
POWER BLOCK DIAGRAM
20
18
35
36
16
14
17
20
18
35
36
16
22-26
22-26
14
17
PP1001
PP1001
PP1001
PP1001
PP1001
PP1001
PP1001
PP1001
PS1502
PS1502
PS1502
PS1502
PS1502
21
34
27
12
13
21
34
27
12
13
PP1001
PP1001
PP1001
PP1001
PP1001
PS1502
PS1502
PS1502
PS1502
PS1502
PS1502
PS1502
PS1502
SV-AV30U / SV-AV20U / SV-AV20E / SV-AV20B / SV-AV20EN
7
6.2. CONTROL BLOCK DIAGRAM
SV-AV30U,SV-AV20U/E/B/EN
CONTROL BLOCK DIAGRAM
L
L
H
H
H
H
L
H
S6102
S S
12C CLK
VCC CAM
JACK C.B.A.
DSC
ADAPTOR PLUG OPEN:
ADAPTOR PLUG IN:
CRADLE
PLUG
POWER INT
X1
X2
OPERATION
REC LED
S/S
REC
PLAY
P OFF
OPERATION
VTR
VTR OPE2
VTR OPE1
SYNC DET
ADPT IN
DSC 25RX
DSC 25TX
DAC CS
UC SCLK2
UC SDI2
UC SDO2
CE
AVREF
I2CCLK(CAMERA MODULE 12C CLK)
I2CDATA(CAMERA MODULE 12C DATA)
X RESET
6KEY(REMOCON KEY ON: )
REMOCON KEY IN
POWER ON /KEY IN
DO
DI
SK
CS
SDI
SDO
SCLKO
CLK OUT2
UART TX
EX INPUT
AUDIO
TO/FROM
LCD
TO/FROM
CRADLE
JACK C.B.A.
DC+
VIN
Q6001
QR6004
REG 4.5V
POWER
FROM
Q6003
SDI
UCSDO
SCLK1
X OUT
X IN
JACK P/EVR
EX INPUT/
FROM
JACK P
FROM
(4MHz OSC)
X6001
AC ADAPTOR
DC GND
AC ADAPTOR
+B
<UCOM 3.2V>
<UCOM 3.2V>
13
13
PS1502
PP1001
55
56
57
48
59
2
1
3
40
41
45
10
15
15
15
14
14
PS1501
PS1501
PS1502
PS1502
PP1001
PP1001
53
23
49
43
3
2
5
6
7
46
17
19
18
15
16
14
26
13
12
16
14
26
13
12
22
21
61
20
19
18
2
3
6
4
REG.
1
3
5
16
34
AVREF
8
29
46
36
14
13
3
6
4
1
SWITCHING
SWITCHING
UC RESET
TO EVR
(REMOCON KEY DET)
Q6002
<UCOM 3.2V>
OUT
VDD
2
1
REG 3.2V
+B
G
S
D
Q6004
JK1503
HP/REMOCON JACK
1
2
42
42
PP1001
PS1502
(REAL TIME CLOCK)
(SV-AV30 ONLY)
(SV-AV30 ONLY)
IC6002
(DSC ENGINE)
IC3401
(EEPROM)
IC3458
IC6001
(REG.AVREF)
(RESET)
IC6004
QR3405
DSC
MAIN CONNECTION
QR6003
S6105
P OFF/PLAY/REC
VR-
VR+
VTR OPERATION SW U
<REG 3.2V>
<REG 3.2V>
27
26
(CONTROL MICROCOMPUTER)
IC6003
SYNC DET
(PLUG IN:ON)
Q6005
<UCOM 3.2V>
UC SSCL
UCSDO
UC SSCL
UCSDIO
UC SSCL
CS
SCK
SIO
RTC CS
UC SSCL
UC SDIO
CLICK1
DSP RECEIV
UART RX
MODULE
CAMERA
TO/FROM
CAMERA IF
FROM
ADPT SW (PLUG IN: )
(DSC ENGINE)
IC3401
29 CARD ACCESS
UCOM 3.2V
REG 3.2V
ACS LED
POWER LED
S/S
REC
PLAY
P OFF
VR-
VR+
S6104
S6103
MODE
MENU
FF
STOP
STILL
REW
PLAY
S/S
SW2
SW3
SW7
SW6
SW8
SW5
SW4
SW1
50
51
52
53
54
55
56
57
50
51
52
53
54
55
56
57
PS1502
PS1502
PS1502
PS1502
PS1502
PS1502
PS1502
PS1502
PP1001
PP1001
PP1001
PP1001
PP1001
PP1001
PP1001
PP1001
9
FP1501
8
7
6
5
4
3
2
1
FP1501
FP1501
FP1501
FP1501
FP1501
FP1501
FP1501
FP1501
FORWARD
REVERSE
STOP
PAUSE
MODE
PLAY ENTRY
MENU
12C DATA
REMOCON
SV-AV30U / SV-AV20U / SV-AV20E / SV-AV20B / SV-AV20EN
8
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