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Sony Ba5 Service Manual

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    Page 31

    Page 31 — 31 — KV-25FS12 / 25FS12CMB BOARD SCHEMATIC DIAGRAM 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 A — B — C — D — E — F — G — H — I — J — K — L — M — N — O — P — 1234567891 01 11 21 31 41 51 61 71 81 92 02 12 22 32 4 2 52 62 72 82 93 03 13 23 33 43 53 63 73 83 94 04 14 24 34 44 54 64 74 8 1234567891 01 11 21 31 41 51 61 71 81 92 02 12 22 32 42 52 6 2 72 82 93 03 13 23 33 43 53 63 73 83 94 04 14 24 34... 
    — 31 —
KV-25FS12 / 25FS12CMB BOARD SCHEMATIC DIAGRAM
1  |  2        |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  10  |  11  |  12  |  13  |  14  |  15  |  16  |  17  |  18  |  19  |  20  |  21  |  22 
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
—
I
—
J
—
K
—
L
—
M
—
N
—
O
—
P
—
1234567891
01
11
21
31
41
51
61
71
81
92
02
12
22
32
4
2
52
62
72
82
93
03
13
23
33
43
53
63
73
83
94
04
14
24
34
44
54
64
74
8
1234567891
01
11
21
31
41
51
61
71
81
92
02
12
22
32
42
52
6
2
72
82
93
03
13
23
33
43
53
63
73
83
94
04
14
24
34...

    Page 32

    Page 32 — 32 — KV-25FS12 / 25FS12C 1.3 Vp-p (H) 68 1012 141315 4 7 3 11 2 5 9 MB BOARD WAVEFORMS 1 4.7 Vp-p (H) 16 171819 2.7 Vp-p (8 MHz) 1.0 Vp-p (H) 0.7 Vp-p (H) 0.9 Vp-p (H) 4.0 Vp-p (V)4.0 Vp-p (V) 0.9 Vp-p (H) 1.7 Vp-p (H) 1.4 Vp-p (V)1.4 Vp-p (V) 5.5 Vp-p (H) 5.3 Vp-p (H) 3.8 Vp-p (H)3.1 Vp-p (H) 3.1 Vp-p (H) 0.7 Vp-p (H) 1.2 Vp-p (H) 23 GND 47 5.0 7 GND 21 1.5 45 5.2 19 1.9 pin volt24 2.2 48 0.0 8 5.0 22 1.5 46 4.6 20 2.4 1 1.7 25 2.3 49 0.0 23 1.6 47 1.7 2 4.8 26 GND 50 0.0pin volt24 1.4 48 N/Cpin... 
    — 32 —
KV-25FS12 / 25FS12C 
1.3 Vp-p (H)
68
1012
141315
4
7
3
11
2
5
9  
MB BOARD WAVEFORMS
1
4.7 Vp-p (H)
16
171819 2.7 Vp-p (8 MHz)
1.0 Vp-p (H) 0.7 Vp-p (H)
0.9 Vp-p (H) 4.0 Vp-p (V)4.0 Vp-p (V)
0.9 Vp-p (H)
1.7 Vp-p (H) 1.4 Vp-p (V)1.4 Vp-p (V) 5.5 Vp-p (H)
5.3 Vp-p (H) 3.8 Vp-p (H)3.1 Vp-p (H) 3.1 Vp-p (H)
0.7 Vp-p (H) 1.2 Vp-p (H)
23 GND 47 5.0 7 GND 21 1.5 45 5.2 19 1.9
pin
volt24 2.2 48 0.0 8 5.0 22 1.5 46 4.6 20 2.4
1 1.7 25 2.3 49 0.0 23 1.6 47 1.7
2 4.8 26 GND 50 0.0pin volt24 1.4 48 N/Cpin...

    Page 33

    Page 33 — 33 — KV-25FS12 / 25FS12C MB BOARD IC BLOCK DIAGRAM IC1301: CXA2131CS CHROMA SW Y SW MONITOR SW VIDEO SW 436247941 TV/C2 IN MON OUT COMB-C IN CVBS1/Y1 IN CVBS2/Y2 INC1 IN COMB-Y IN ACC DET.ACC AMP CHROMA AT TV SYNC SEP H SYNC SEP SHARPNESS DL SHARPNESS AMP FILTER ALIGNMENT CAL. by fscCOUNTDOWN LINE COUNTER V TIM GEN. VSAW GEN VTIM AFC HSAW GEN. (ZAP) H TIM GEN. PHASE DET. HPROT HD GEN. IREF REG 20AFC FIL 17SCP 33VCC1 16REG 121 REF 10GND1 19HD 18HP/PROTECT 5V... 
    — 33 —
KV-25FS12 / 25FS12C 
MB BOARD IC BLOCK DIAGRAM
IC1301: CXA2131CS
CHROMA SW
Y SW
MONITOR SW
VIDEO SW


436247941
TV/C2 IN
MON OUT COMB-C IN CVBS1/Y1 IN CVBS2/Y2 INC1 IN
COMB-Y IN
ACC DET.ACC AMP
CHROMA
AT TV SYNC SEP

H SYNC SEP


SHARPNESS DL
SHARPNESS AMP



FILTER ALIGNMENT 
CAL. by fscCOUNTDOWN

LINE COUNTER
V TIM GEN.



VSAW GEN
VTIM
AFC




HSAW GEN.

(ZAP)
H TIM GEN.



PHASE DET.



HPROT

HD GEN.
IREF                     REG
20AFC FIL
17SCP
33VCC1
16REG
121 REF
10GND1
19HD
18HP/PROTECT
5V...

    Page 34

    Page 34 — 34 — KV-25FS12 / 25FS12C 1 | 2 | 3 | 4 | 5 | 6 | 7 A — B — C — D — E MB[TUNING CONTROL, Y/C/J] Q1317 B-7 D1001 A-1 Q1001 A-3 Q1325 B-2 D1005 B-4 Q1002 A-6 Q1326 B-1 D1010 C-4 Q1003 A-4 Q1327 D-6 D1011 C-3 Q1009 B-3 Q1328 D-7 D1012 B-2 Q1010 A-4 Q1329 D-6 D1013 C-3 Q1011 B-5 Q1330 C-6 D1014 B-1 Q1301 A-7 Q1331 B-7 D1301 A-7 Q1302 D-6 Q1332 D-5 D1310 C-6 Q1306 B-5 Q1336 B-6 Q1307 B-5 Q1350 A-7 IC1001 C-2 Q1308 C-5 Q1354 B-5 IC1002 A-3 Q1310 D-4 IC1003 D-3 Q1311 C-4 X1001 B-4 IC1301... 
    — 34 —
KV-25FS12 / 25FS12C 
1  |  2        |  3  |  4  |  5  |  6  |  7 
A
—
B
—
C
—
D
—
E
MB[TUNING CONTROL, Y/C/J]
Q1317 B-7
D1001 A-1 Q1001 A-3 Q1325 B-2
D1005 B-4 Q1002 A-6 Q1326 B-1
D1010 C-4 Q1003 A-4 Q1327 D-6
D1011 C-3 Q1009 B-3 Q1328 D-7
D1012 B-2 Q1010 A-4 Q1329 D-6
D1013 C-3 Q1011 B-5 Q1330 C-6
D1014 B-1 Q1301 A-7 Q1331 B-7
D1301 A-7 Q1302 D-6 Q1332 D-5
D1310 C-6 Q1306 B-5 Q1336 B-6
Q1307 B-5 Q1350 A-7
IC1001 C-2 Q1308 C-5 Q1354 B-5
IC1002 A-3 Q1310 D-4
IC1003 D-3 Q1311 C-4 X1001 B-4
IC1301...

    Page 35

    Page 35 — 35 — KV-25FS12 / 25FS12C 1 | 2 | 3 | 4 | 5 A — B — VB[VELOCITY MODULATION] 1 | 2 | 3 | 4 | 5 | 6 | A — B — C — D — 1 2 3 4 5 6 7 8 1 2 3 4 5 C901C902C903R901 R902 R903 R904 D901 D902 R905 R906 C905 R907 R908 R909C907 C908 C909C910R910 C911 R911 R912 R913 R914 D903R915R916 R917R918 R919R920 R921R922 C912C914 R923 Q905 Q906 Q903 Q904 Q902 Q901L901 C904 C906 CN901 CN902 C913 2.2 160V0.047 :PT470 10V47 :FPRD 2.7 :FPRD 560 :FPRD 18k MTZJ-T-77-39 MTZJ-T-77-39 1k :FPRD 18k... 
    — 35 —
KV-25FS12 / 25FS12C 
1  |  2        |  3  |  4  |  5 
A
—
B
—
VB[VELOCITY MODULATION]
1  |  2        |  3  |  4  |  5  |  6  |
A
—
B
—
C
—
D
—
1 2 3 4 5 6 7 8
1
2 3 4 5
C901C902C903R901 R902
R903
R904
D901 D902
R905
R906 C905 R907
R908 R909C907
C908
C909C910R910 C911
R911
R912 R913
R914
D903R915R916 R917R918 R919R920
R921R922 C912C914
R923
Q905 Q906
Q903
Q904
Q902 Q901L901
C904 C906
CN901
CN902
C913
2.2
160V0.047
:PT470
10V47
:FPRD 2.7
:FPRD
560
:FPRD 18k
MTZJ-T-77-39 MTZJ-T-77-39
1k
:FPRD
18k...

    Page 36

    Page 36 — 36 — KV-25FS12 / 25FS12C 5-4. SEMICONDUCTORS 2SB709A-QRS-TX 2SD601A-QRS-TX2SC3209LK-TP 2SA1837 2SA1091O-TPE22SA1309A-QRSTA 2SC3311A-QRSTA 2SD2144S-TP-UVW 2SK2663 2SD2578-YB2SC47931SS83TD D1NLSOU-TA ELIZ-V1 ERA22-08TP3 GP08DPKG23 RU4AM-T3 RGP10GPKG23 RD9.1EW-T1 MA111-TX UDZ-TE-17.5.1B UDZ-TE-17.91BD2SB60A-F04 DAP202K-T-146 D4SB60L-F D5LC20U B E CE C B LETTER SIDEE B CE C B GD S 1 2 31 2 3 CATHODE ANODE 1SS133T-77 D1NS0R-TA MTZJ-T-77-12C MTZJ-T-77-33B... 
    — 36 —
KV-25FS12 / 25FS12C 
5-4. SEMICONDUCTORS
2SB709A-QRS-TX
2SD601A-QRS-TX2SC3209LK-TP
2SA1837 2SA1091O-TPE22SA1309A-QRSTA
2SC3311A-QRSTA
2SD2144S-TP-UVW
2SK2663  2SD2578-YB2SC47931SS83TD             D1NLSOU-TA
ELIZ-V1               ERA22-08TP3
GP08DPKG23     RU4AM-T3
RGP10GPKG23
RD9.1EW-T1 MA111-TX 
UDZ-TE-17.5.1B 
UDZ-TE-17.91BD2SB60A-F04 DAP202K-T-146 D4SB60L-F
D5LC20U
B E
CE
C
B LETTER SIDEE B
CE
C
B
GD
S
1
2
31
2
3
CATHODE
ANODE
1SS133T-77          D1NS0R-TA
MTZJ-T-77-12C     MTZJ-T-77-33B...

    Page 37

    Page 37 — 37 — KV-\b5FS\f\b / \b5FS\f\bC SECTION 6: EXPLODED VIEWS Components not identifi ed by a part number or description are not stocked because they are seldom required for routine service. NOTE: The components identifi ed by shading and ! mark are critical for safety. Replace only with part number specifi ed. NOTE: Les composants identifi es par un trame et une marque ! sont critiques pour la securite. Ne les remplacer que par une piece portant le numero specifi e. The component parts of... 
    — 37 —
KV-\b5FS\f\b / \b5FS\f\bC 
SECTION  6:  EXPLODED VIEWS
Components  not  identifi ed  by  a  part  number  or 
description are not stocked because they are seldom 
required for routine service.
NOTE: The components identifi ed by shading and ! mark are critical for safety. 
Replace only with part number specifi ed.  NOTE: Les composants identifi es par un trame et une marque ! sont critiques pour 
la securite.  Ne les remplacer que par une piece portant le numero specifi  e.
The  component  parts  of...

    Page 38

    Page 38 — 38 — KV-25FS12 / 25FS12C SECTION 7: ELECTRICAL PARTS LIST * Items marked with an asterisk are not stocked since they are seldom required for routine service. Expect some delay when ordering these components. RESISTORS • All resistors are in ohms • F : nonfl ammable • All variable and adjustable resistors have characteristic curve B, unless otherwise noted. REF.NO. PART NO. DESCRIPTION VALUES The components in this manual identifi ed by the following symbol:... 
    — 38 —
KV-25FS12 / 25FS12C 
SECTION  7:  ELECTRICAL PARTS LIST
* Items marked with an asterisk are not stocked since they 
are seldom required for routine service.  Expect some delay 
when ordering  these components.     RESISTORS
•   All resistors are in ohms
•   F : nonfl ammable
•    All  variable  and  adjustable  resistors 
have  characteristic  curve  B,  unless 
otherwise noted.
         REF.NO.   PART  NO.  DESCRIPTION   VALUES   The components in this manual identifi ed by the following 
symbol:...

    Page 39

    Page 39 — 39 — KV-25FS12 / 25FS12C NOTE: The components identifi ed by shading and ! mark are critical for safety. Replace only with part number specifi ed. NOTE: Les composants identifi es par un trame et une marque ! sont critiques pour la securite. Ne les remplacer que par une piece portant le numero specifi e. REF.NO. PART NO. DESCRIPTION VALUES REF.NO. PART NO. DESCRIPTION VALUES C540 1-107-645-11 ELECT 22µF 20% 160V C541 1-126-969-11... 
    — 39 —
KV-25FS12 / 25FS12C 
NOTE: The  components  identifi ed  by  shading 
and ! mark are critical for safety. Replace only 
with part number specifi ed. 
NOTE:  Les  composants  identifi es  par  un  trame  et  une 
marque !  sont  critiques  pour  la  securite.    Ne  les 
remplacer que par une piece portant le numero specifi e.
         REF.NO.   PART  NO.  DESCRIPTION   VALUES             REF.NO.   PART  NO.  DESCRIPTION   VALUES   
  C540  1-107-645-11  ELECT  22µF  20%  160V
  C541  1-126-969-11...

    Page 40

    Page 40 — 40 — KV-25FS12 / 25FS12C NOTE: The components identifi ed by shading and ! mark are critical for safety. Replace only with part number specifi ed. NOTE: Les composants identifi es par un trame et une marque ! sont critiques pour la securite. Ne les remplacer que par une piece portant le numero specifi e. REF.NO. PART NO. DESCRIPTION VALUES REF.NO. PART NO. DESCRIPTION VALUES ! D516 8-719-991-33 DIODE 1SS133T-77 ! D517 8-719-991-33 DIODE... 
    — 40 —
KV-25FS12 / 25FS12C 
NOTE: The  components  identifi ed  by  shading 
and ! mark are critical for safety. Replace only 
with part number specifi ed. 
NOTE:  Les  composants  identifi es  par  un  trame  et  une 
marque !  sont  critiques  pour  la  securite.    Ne  les 
remplacer que par une piece portant le numero specifi e.
         REF.NO.   PART  NO.  DESCRIPTION   VALUES             REF.NO.   PART  NO.  DESCRIPTION   VALUES   
!  D516  8-719-991-33  DIODE 1SS133T-77
!  D517  8-719-991-33  DIODE...
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