Panasonic KX-FLB753RU / KX-FLB753SA (serv.man2) Service Manual / Supplement ▷ View online
2.2. MAIN FRAME SECTION
3 SCHEMATIC DIAGRAM
3.1. DIGITAL BOARD (PCB1)
+5VD
+5VD
+5VD
+5VD
+24V
+24V
CN614
1
+24V
2
PG
3
DEV REM
4
CHG REM
5
LED
6
TRA CLK
7
DRUM
8
TOPCVR
9
REGIST
CN615
1
+24V
2
+24V
3
PG
4
PG
5
DG
6
DG
7
+5V
8
+5V
9
HTRON
10
PDET
C741
K0.01u
C747
Z0.1u
C742
K1000p
C756
Z0.1u
C744
K820p
C743
K1000p
C757
35V100
C745
6.3V100
L642
L641
L647 0
L646 0
L645 0
L640
L644
R726
10K
R769
2.2 (1W)
R725
1K
R721
2.7K
R737
33K
R722
39K
10K
R704
R724 10K
Q616
Q619
Q618
Q617
CHG
REGIST
DEV
TRS
TOPCVR
DRUM
SENCTL1
HTRCTL
POWER2
PDET
POUT
PICKUP
SENCTL0
AIN0
TO HVPS
TO SMPS
-2
IC611
5
6
7
+5VD
-1
IC611
1
2
3
4
8
+5VD
+5VD
R728
10K
R701
4.7KF
R727
10K
R700
18KF
R703
10K
R702
10K
Q620
Q621
C750
Z0.1u
Q631
R802
10K
C774
Z0.1u
Addition
5
KX-FLB753RU / KX-FLB753SA
4 PRINTED CIRCUIT BOARD
4.1. DIGITAL BOARD (PCB1)
4.1.1. DIGITAL BOARD : COMPONENT VIEW
J600
BAT600
C676
R703
R701
R728
R727
CN614
CN615
C745
R769
C757
+24V
1
11
0
1
1
L653
R670
L642
2
2
CN617
9
R700
R691
R662
C732
D605
C721
Q617
L640
C759
Q618
Q619
C747
C756
CN600
IC605
IC611
CN616
C663
C707
R702
Q620
Q631
Q621
C678
C664
C643
C659
C657
C658
R661
C639
R664
R665
R786
RA626
C750
R802
C774
A B C 1 2 3 4 5 6 7 8 9 A B C
1
4
5
8
L644
R737
R725
R726
C743
R725
R726
C743
L641
L647
L647
Q616
L646
L645
L645
1
5
4
3
1
5
4
3
1
1
8
5
4
5
4
3
1
5
4
3
DA600
DA602
DA601
C733
IC612
R709
L671
AG
DA603
RA602
RA601
RA600
RA603
28
27
1
54
IC603
IC605
3.3V/BATT
5
28
X601
IC604
X600
54
C672 C675 R680
IC608
IC606
IC610
RA623
RA608
RA607
RA610
C699
C694
L649
C695
C710
R710
C724
C723
C700
C702
R708
L669
R707
L648
C698 C680
C656
C681
R751
R750
R750
R749
RA613
RA612
C682
R676
R676
C693
R686
24
25
48
1
RA605
RA606
RA622
R674
RA625 RA624
RA614
1
C763
IC614
1
RA619 RA618
RA621
RA620
RA604
R673
R662
R662
CN610
1
5
R688
+3.3V
C771
Q614
L639
D603
Q613
R733
L643
R637
Q626
Q627
R638
R634
R633
R633
F603
Q604
R618
R610
R611
Q608
CN606
CN603
RA617
R624
R623
Q609
Q622
Q623
Q624
Q625
R668
R625
1
2
CN609
D604
F604
CN612
CN613
CN605
C604
Q610
CN611
CN608
R602
C651
R650
D608
R723
C752
C740
8
1
4
51
1
1
14
11
1
10
1
9
1
3
C737
C736
Q600
R601
Q605
R605
R604
D607
F601
R655
Q612
Q628
R654
L686
L684
L682
L680
L685
L683
L681
13
1
CN604
CN601
Q615
R690
F605
C753
C626
L678
C705
S
D
25
25
I
I
I
C653
D606
L636
R653
F606
Q611
Q601
R615
Q606
A
B
TP_IN
DG
R616
R775
PG
Q630
CN602
CN607
R613
C602
IC601
IC602
10
10
20
IC600
L620
L617
20
1
1
11
11
32
25 24
16
9
8
1
C713
C712
J600
PCB-CH
AUTO-CH
REF-CH
C758
R800
R764
L659
L667
R799
L651
L650
L652
L655
L654
L661
R738
L656
L657
L658
L660
L673
L662
L664
L665
L663
L674
L666
C691
IC609
R739 R706
C711
C734
C703
IC613
L621
C625
C624
L632
D601
R669
R641
R642
L631
DA604
L668
16
1
8
9
E
E
C603
R729
R730
C768
C767
C766
C765
C764
R667
R730
C768
C767
C766
C765
C764
R667
R603
Q602
C600
D600
F600
R773
R771
R699
R607
R617
R698
R697
R696
R606
Q607
C601
L619 L618
C629
+5VD
C631
C628
C630
F602
41
80
81
40
1
160
120
R772
R770
Q603
R778
R609
KX-FLB753RU / KX-FLB753SA : DIGITAL BOARD (PCB1) COMPONENT VIEW
Addition
KX
-F
L
B
75
3RU
3RU
/
KX
-F
L
B
75
3S
A
3S
A
6
RTL (Retention Time Limited)
Notes:
1. The marking (RTL) indicates that the Retention Time is
limited for this item.
After the discontinuation of this assembly in production, the
item will continue to be available for a specific period of
time. The retention period of availability is dependent on the
type of assembly, and in accordance with the laws
governing parts and product retention.
item will continue to be available for a specific period of
time. The retention period of availability is dependent on the
type of assembly, and in accordance with the laws
governing parts and product retention.
After the end of this period, the assembly will no longer be
available.
available.
2. Important safety notice
Components
identified
by
mark
have
special
characteristics important for safety. When replacing any of
these components, use only manufacture´s specified parts.
these components, use only manufacture´s specified parts.
3. The S mark indicates service standard parts and may differ
from production parts.
4. ISO code (Example : ABS-HB) of the remarks column
shows quality of the matterial and a flame resisting grade
about plastics.
about plastics.
5. RESISTORS & CAPACITORS
Unless otherwise specified;
All resistors are in ohms (
Ω
) K=1000
Ω
, M=1000k
Ω
All capacitors are in MICRO FARADS (µF) P=µµF
*Type & Wattage of Resistor
Ref.
No.
Part No.
Part Name & Description
Remarks
PCB4
EUKMBN862HA
HIGH
VOLTAGE
POWER
BOARD
ASS´Y(RTL)
S
(ICs)
IC101
AN6742S
IC
(TRANSISTORS)
Q101
2SD1990P
TRANSISTOR(SI)
S
Q102
2SB709A
TRANSISTOR(SI)
Q103
2SB709A
TRANSISTOR(SI)
Q202
2SD2137A
TRANSISTOR(SI)
Q204
2SA1413
TRANSISTOR(SI)
(DIODES)
D102
PQVDS5688G
DIODE(SI)
Ref.
No.
Part No.
Part Name & Description
Remarks
D103
PFVDDHM3M20
DIODE(SI)
S
D104
PFVDDHM3M20
DIODE(SI)
S
D110
PFVDERA9102
DIODE(SI)
S
D111
MA3J147
DIODE(SI)
D112
MA3J147
DIODE(SI)
D201
PQVDS5688G
DIODE(SI)
D202
PFVDDHM3M20
DIODE(SI)
S
D203
PFVDDHM3M20
DIODE(SI)
S
D205
PQVDS5688G
DIODE(SI)
ZD202
PQVDRD6.2ESB
DIODE(SI)
ZD203
PFVDRD200EB
DIODE(SI)
S
(CONNECTOR)
CN2
PQJP9G30Y
CONNECTOR,9PIN
S
(CAPACITORS)
C101
ECA1VHG470
47
C102
ECUV1H473KBV
0.047
C103
ECEA50M1
1
C104
ECEA50M2R2
2.2
C106
ECUV1H153KBV
0.015
C107
ECKR2H102KB
0.001
C108
ECKK3A471KB
470p
C109
ECKK3D102KB
0.001
C110
ECUV1H103KBV
0.01
C111
ECUV1H102KBV
0.001
C112
ECUV1H102KBV
0.001
C202
ECKK3A471KB
470p
C203
ECUV1H472KBV
0.0047
C204
ECKK3D221KB
220p
C206
ECQB1H103JF
0.01
C207
ECKK3A471KB
470p
C208
ECQE2103KS
0.01
C209
ECKK3D102KB
0.001
C210
ECKZ3A101KB
100p
S
C211
ECKZ3A101KB
100p
S
C212
ECUV1H221JC
220p
(RESISTORS)
R102
PQ4R10XJ104
100k
S
R103
ERJ6ENF7871
7.87k
R104
PQ4R10XJ103
10k
S
R105
ERJ6ENF1002
10k
R106
ERJ6ENF1653
165k
R107
ERJ6ENF6653
665k
R108
ERJ6ENF8451
8.45k
R110
ERJ6ENF1003
100k
R113
ERDS2TJ102
1k
S
R114
PFRGVR25J106
10M
S
R116
PQ4R10XJ272
2.7k
S
R117
ERDS2TJ272
2.7k
R119
ERJ6ENF7871
7.87k
R120
PQ4R10XJ473
47k
S
R121
PQ4R10XJ103
10k
S
R122
PQ4R10XJ103
10k
S
R123
PQ4R10XJ103
10k
S
R124
PQ4R10XJ103
10k
S
R125
PQ4R10XJ103
10k
S
R126
ERDS2TJ103
10k
R127
ERDS2TJ103
10k
R128
ERDS2TJ152
1.5k
R129
ERDS2TJ152
1.5k
R201
ERDS2TJ152
1.5k
R202
ERJ6ENF1582
15.8k
R206
PQ4R10XJ102
1k
S
R209
PFRGVR25J105
1M
S
R210
ER0S2TKF2492
24.9k
R211
PFRGR25F1504
1.5M
S
R214
PFRGVR25J105
1M
S
R215
PFRGVR25J105
1M
S
R216
ERDS2TJ333
33k
5 NEW HIGH VOLTAGE POWER BOARD
5.1. REPLACEMENT PARTS LIST
7
KX-FLB753RU / KX-FLB753SA
Ref.
No.
Part No.
Part Name & Description
Remarks
R217
PFRGR25F1005
10M
S
R218
ERDS1TJ225
2.2M
R219
ERDS2TJ473
47k
R220
ERDS1TJ225
2.2M
VR101
ER0S2TKF7871
7.87k
(FUSE)
IP101
PFBAICPN38
FUSE
S
(PHOTO ELECTRIC TRANSDUCER)
PC201
PFVISG206S
PHOTO COUPLER
S
(SWITCH)
SW101
PFSEDE2LEALB
MICRO SWITCH
S
(TRANSFORMERS)
T101
MS15BTP20
TRANSFORMER
T201
ETB16GKL1
TRANSFORMER
(VARIABLE RESISTORS)
VR201
EVMAASA00B53
VARIABLE RESISTOR
8
KX-FLB753RU / KX-FLB753SA
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