Sony MHC-S3 / MHC-SV7AV / TC-S3 Service Manual ▷ View online
25
TC-S3
SECTION 9
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
HEAD (A) HEAD (B)
LEAF SW MAIN
1-676-220-11 HEAD (A) BOARD
**************
< CONNECTOR >
* CN1
1-564-719-11 PIN, CONNECTOR (SMALL TYPE) 3P
**************************************************************
1-676-221-11 HEAD (B) BOARD
**************
< CONNECTOR >
CN2
1-564-722-11 PIN, CONNECTOR (SMALL TYPE) 6P
**************************************************************
A-2007-838-A LEAF SW BOARD, COMPLETE
************************
< CAPACITOR >
C1001
1-107-716-11 ELECT
33uF
20%
10V
< CONNECTOR >
CN1001 1-568-860-21 SOCKET, CONNECTOR 17P
< DIODE >
D1001
8-719-911-19 DIODE 1SS133T-72
D1002
8-719-911-19 DIODE 1SS133T-72
< PHOTO INTERRUPTER >
IC1001
8-749-014-38 PHOTO INTERRUPTER SG-264
IC1002
8-749-014-38 PHOTO INTERRUPTER SG-264
< TRANSISTOR >
Q1001
8-729-029-56 TRANSISTOR
DTA144ESA-TP
< RESISTOR >
R907
1-247-879-11 CARBON
100K
5%
1/4W
R1001
1-249-409-11 CARBON
220
5%
1/4W
R1002
1-249-409-11 CARBON
220
5%
1/4W
R1003
1-249-414-11 CARBON
560
5%
1/4W
R1004
1-247-834-11 CARBON
1.3K
5%
1/4W
R1005
1-247-818-11 CARBON
300
5%
1/4W
R1006
1-247-864-11 CARBON
24K
5%
1/4W
R1007
1-247-780-00 CARBON
7.5
5%
1/4W
NOTE:
• Due to standardization, replacements in the
parts list may be different from the parts speci-
fied in the diagrams or the components used
on the set.
fied in the diagrams or the components used
on the set.
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
Some delay should be anticipated when order-
ing these items.
• SEMICONDUCTORS
In each case, u:
µ
, for example:
uA. .
:
µ
A. .
uPA. . :
µ
PA. .
uPB. . :
µ
PB. .
uPC. . :
µ
PC. .
uPD. . :
µ
PD. .
• CAPACITORS
uF:
µ
F
• COILS
uH:
µ
H
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board.
number, please include the board.
R1008
1-249-417-11 CARBON
1K
5%
1/4W
< VARIABLE RESISTOR >
RV1001 1-241-785-11 RES, ADJ, CARBON 10K
RV1002 1-241-785-11 RES, ADJ, CARBON 10K
RV1002 1-241-785-11 RES, ADJ, CARBON 10K
< SWITCH >
S1001
1-570-953-11 SWITCH, PUSH (1 KEY) (A PLAY)
S1002
1-570-953-11 SWITCH, PUSH (1 KEY) (B PLAY)
S1003
1-771-333-11 SWITCH, LEAF (A.HALF)
S1004
1-771-205-11 SWITCH, LEAF (A.120/70)
S1005
1-771-205-11 SWITCH, LEAF (REC.A)
S1006
1-771-333-11 SWITCH, LEAF (B.HALF)
S1008
1-771-205-11 SWITCH, LEAF (B.120/70)
S1009
1-771-205-11 SWITCH, LEAF (REC.B)
**************************************************************
A-2007-873-A MAIN BOARD, COMPLETE (EXCEPT TH)
A-4725-734-A MAIN BOARD, COMPLETE (TH)
A-4725-734-A MAIN BOARD, COMPLETE (TH)
*********************
7-685-646-79 SCREW +BVTP
3X8
TYPE2 N-S
< CAPACITOR >
C301
1-126-960-11 ELECT
1uF
20%
50V
C302
1-130-479-00 MYLAR
0.0047uF 5%
50V
C303
1-136-165-00 FILM
0.1uF
5%
50V
C304
1-136-165-00 FILM
0.1uF
5%
50V
C305
1-126-959-11 ELECT
0.47uF
20%
50V
C306
1-126-960-11 ELECT
1uF
20%
50V
C307
1-126-960-11 ELECT
1uF
20%
50V
C308
1-126-964-11 ELECT
10uF
20%
50V
C309
1-137-194-11 FILM
0.47uF
5%
50V
C310
1-162-290-31 CERAMIC
470PF
10%
50V
C311
1-126-964-11 ELECT
10uF
20%
50V
C312
1-126-959-11 ELECT
0.47uF
20%
50V
C313
1-162-294-31 CERAMIC
0.001uF
10%
50V
C314
1-126-964-11 ELECT
10uF
20%
50V
C315
1-126-963-11 ELECT
4.7uF
20%
50V
C316
1-126-933-11 ELECT
100uF
20%
16V
C317
1-104-665-11 ELECT
100uF
20%
10V
C318
1-126-964-11 ELECT
10uF
20%
50V
C319
1-126-961-11 ELECT
2.2uF
20%
50V
C320
1-126-961-11 ELECT
2.2uF
20%
50V
• Abbreviation
TH
: Thailand model
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
26
TC-S3
C321
1-162-289-31 CERAMIC
390PF
10%
50V
C322
1-162-282-31 CERAMIC
100PF
10%
50V
C323
1-136-157-00 FILM
0.022uF
5%
50V
C324
1-126-933-11 ELECT
100uF
20%
16V
C326
1-162-289-31 CERAMIC
390PF
10%
50V
C327
1-104-665-11 ELECT
100uF
20%
10V
C328
1-162-282-31 CERAMIC
100PF
10%
50V
C329
1-136-153-00 FILM
0.01uF
5%
50V
C330
1-126-933-11 ELECT
100uF
20%
16V
C332
1-162-283-31 CERAMIC
120PF
10%
50V
C333
1-162-288-31 CERAMIC
330PF
10%
50V
C334
1-162-209-31 CERAMIC
27PF
5%
50V
C335
1-137-150-11 MYLAR
0.01uF
5%
100V
C336
1-126-961-11 ELECT
2.2uF
20%
50V
C337
1-136-155-00 FILM
0.015uF
5%
50V
C338
1-130-481-00 MYLAR
0.0068uF 5%
50V
C339
1-130-481-00 MYLAR
0.0068uF 5%
50V
C340
1-136-156-00 FILM
0.018uF
5%
50V
C341
1-126-960-11 ELECT
1uF
20%
50V
C342
1-104-660-11 ELECT
47uF
20%
16V
C343
1-164-159-11 CERAMIC
0.1uF
50V
C344
1-164-159-11 CERAMIC
0.1uF
50V
C345
1-164-159-11 CERAMIC
0.1uF
50V
C346
1-164-159-11 CERAMIC
0.1uF
50V
C347
1-126-964-11 ELECT
10uF
20%
50V
C348
1-164-159-11 CERAMIC
0.1uF
50V
C349
1-126-964-11 ELECT
10uF
20%
50V
C350
1-126-964-11 ELECT
10uF
20%
50V
C351
1-126-960-11 ELECT
1uF
20%
50V
C352
1-130-479-00 MYLAR
0.0047uF 5%
50V
C353
1-136-165-00 FILM
0.1uF
5%
50V
C354
1-136-165-00 FILM
0.1uF
5%
50V
C355
1-126-959-11 ELECT
0.47uF
20%
50V
C356
1-126-960-11 ELECT
1uF
20%
50V
C357
1-126-960-11 ELECT
1uF
20%
50V
C358
1-126-964-11 ELECT
10uF
20%
50V
C359
1-137-194-11 FILM
0.47uF
5%
50V
C360
1-162-290-31 CERAMIC
470PF
10%
50V
C362
1-130-479-00 MYLAR
0.0047uF 5%
50V
C363
1-130-479-00 MYLAR
0.0047uF 5%
50V
C367
1-162-294-31 CERAMIC
0.001uF
10%
50V
C368
1-126-964-11 ELECT
10uF
20%
50V
C369
1-126-961-11 ELECT
2.2uF
20%
50V
C370
1-126-961-11 ELECT
2.2uF
20%
50V
C371
1-162-289-31 CERAMIC
390PF
10%
50V
C372
1-162-282-31 CERAMIC
100PF
10%
50V
C373
1-136-157-00 FILM
0.022uF
5%
50V
C374
1-126-933-11 ELECT
100uF
20%
16V
C376
1-162-289-31 CERAMIC
390PF
10%
50V
C377
1-104-665-11 ELECT
100uF
20%
10V
C378
1-162-282-31 CERAMIC
100PF
10%
50V
C379
1-136-153-00 FILM
0.01uF
5%
50V
C380
1-126-933-11 ELECT
100uF
20%
16V
C382
1-162-283-31 CERAMIC
120PF
10%
50V
C383
1-162-288-31 CERAMIC
330PF
10%
50V
C384
1-162-209-31 CERAMIC
27PF
5%
50V
C385
1-104-665-11 ELECT
100uF
20%
10V
C386
1-104-665-11 ELECT
100uF
20%
10V
C388
1-126-964-11 ELECT
10uF
20%
50V
C389
1-126-935-11 ELECT
470uF
20%
16V
C390
1-126-964-11 ELECT
10uF
20%
50V
C391
1-126-935-11 ELECT
470uF
20%
16V
C394
1-126-964-11 ELECT
10uF
20%
50V
C395
1-126-964-11 ELECT
10uF
20%
50V
C396
1-162-282-31 CERAMIC
100PF
10%
50V
C397
1-162-282-31 CERAMIC
100PF
10%
50V
C398
1-162-282-31 CERAMIC
100PF
10%
50V
C399
1-162-282-31 CERAMIC
100PF
10%
50V
C414
1-126-964-11 ELECT
10uF
20%
50V
C415
1-126-935-11 ELECT
470uF
20%
10V
C417
1-164-159-11 CERAMIC
0.1uF
50V
C418
1-164-159-11 CERAMIC
0.1uF
50V
< CONNECTOR >
* CN308
1-566-856-11 SOCKET, CONNECTOR 5P
(SYSTEM CONTROL 4)
CN309
1-794-569-11 PIN, CONNECTOR 5P (SYSTEM CONTROL 5)
CN310
1-580-176-11 PIN, CONNECTOR 10P (SYSTEM CONTROL 5)
CN311
1-784-778-11 CONNECTOR, FFC 17P
* CN314
1-568-934-11 PIN, CONNECTOR 7P
< DIODE >
D306
8-719-024-99 DIODE 11ES2-NTA2B (EXCEPT TH)
D306
8-719-200-82 DIODE 11ES2-NTA1B (TH)
D307
8-719-024-99 DIODE 11ES2-NTA2B (EXCEPT TH)
D307
8-719-200-82 DIODE 11ES2-NTA1B (TH)
D308
8-719-024-99 DIODE 11ES2-NTA2B (EXCEPT TH)
D308
8-719-200-82 DIODE 11ES2-NTA1B (TH)
D309
8-719-024-99 DIODE 11ES2-NTA2B (EXCEPT TH)
D309
8-719-200-82 DIODE 11ES2-NTA1B (TH)
< GROUND TERMINAL>
* EPT300 1-537-738-21 TERMINAL, EARTH
* EPT302 1-537-738-21 TERMINAL, EARTH
* EPT302 1-537-738-21 TERMINAL, EARTH
< IC >
IC301
8-759-652-02 IC HA12226F
IC302
8-759-143-54 IC uPC1330HA
IC303
8-759-710-59 IC NJM4580D-D
IC304
8-759-710-59 IC NJM4580D-D
IC310
6-800-467-01 IC PT8300-S
IC311
6-800-467-01 IC PT8300-S
IC320
8-759-394-35 IC BA12T
IC321
8-759-701-59 IC NJM7809FA
< COIL >
L301
1-410-780-11 INDUCTOR
27uH
L302
1-414-193-41 INDUCTOR
220uH
L303
1-414-193-41 INDUCTOR
220uH
L351
1-410-780-11 INDUCTOR
27uH
< TRANSISTOR >
Q301
8-729-801-93 TRANSISTOR
2SD1387-34-TP
Q302
8-729-142-46 TRANSISTOR
2SC2001TP-LK
Q303
8-729-142-46 TRANSISTOR
2SC2001TP-LK
MAIN
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
27
TC-S3
Q304
8-729-422-57 TRANSISTOR
BN1A4M-TP
Q305
8-729-900-80 TRANSISTOR
BA1A4M-TP
Q310
8-729-119-78 TRANSISTOR
2SC2785TP-HFE
Q391
8-729-140-04 TRANSISTOR
2SB1116-TP-LK
Q392
8-729-900-80 TRANSISTOR
BA1A4M-TP
Q393
8-729-140-04 TRANSISTOR
2SB1116-TP-LK
Q394
8-729-900-80 TRANSISTOR
BA1A4M-TP
Q395
8-729-900-80 TRANSISTOR
BA1A4M-TP
Q396
8-729-801-93 TRANSISTOR
2SD1387-34-TP
Q400
8-729-142-46 TRANSISTOR
2SC2001TP-LK
< RESISTOR >
R300
1-249-433-11 CARBON
22K
5%
1/4W
R301
1-249-421-11 CARBON
2.2K
5%
1/4W
R302
1-247-807-31 CARBON
100
5%
1/4W
R303
1-247-807-31 CARBON
100
5%
1/4W
R304
1-249-427-11 CARBON
6.8K
5%
1/4W
R305
1-249-429-11 CARBON
10K
5%
1/4W
R306
1-249-430-11 CARBON
12K
5%
1/4W
R307
1-247-843-11 CARBON
3.3K
5%
1/4W
R308
1-249-433-11 CARBON
22K
5%
1/4W
R309
1-247-903-00 CARBON
1M
5%
1/4W
R310
1-247-884-11 CARBON
160K
5%
1/4W
R311
1-249-441-11 CARBON
100K
5%
1/4W
R313
1-249-429-11 CARBON
10K
5%
1/4W
R314
1-249-435-11 CARBON
33K
5%
1/4W
R315
1-249-429-11 CARBON
10K
5%
1/4W
R316
1-249-429-11 CARBON
10K
5%
1/4W
R317
1-247-893-11 CARBON
390K
5%
1/4W
R318
1-249-418-11 CARBON
1.2K
5%
1/4W
R319
1-249-425-11 CARBON
4.7K
5%
1/4W
R321
1-249-430-11 CARBON
12K
5%
1/4W
R322
1-249-437-11 CARBON
47K
5%
1/4W
R323
1-249-425-11 CARBON
4.7K
5%
1/4W
R324
1-249-429-11 CARBON
10K
5%
1/4W
R325
1-249-437-11 CARBON
47K
5%
1/4W
R327
1-249-425-11 CARBON
4.7K
5%
1/4W
R328
1-249-437-11 CARBON
47K
5%
1/4W
R330
1-247-881-00 CARBON
120K
5%
1/4W
R331
1-247-807-31 CARBON
100
5%
1/4W
R332
1-249-426-11 CARBON
5.6K
5%
1/4W
R333
1-247-882-11 CARBON
130K
5%
1/4W
R334
1-249-409-11 CARBON
220
5%
1/4W
R335
1-247-881-00 CARBON
120K
5%
1/4W
R336
1-249-409-11 CARBON
220
5%
1/4W
R337
1-249-433-11 CARBON
22K
5%
1/4W
R338
1-249-430-11 CARBON
12K
5%
1/4W
R339
1-247-889-00 CARBON
270K
5%
1/4W
R340
1-249-409-11 CARBON
220
5%
1/4W
R341
1-249-430-11 CARBON
12K
5%
1/4W
0 R342
1-212-851-00 FUSIBLE
5.6
5%
1/4W F
0 R343
1-212-851-00 FUSIBLE
5.6
5%
1/4W F
R344
1-249-432-11 CARBON
18K
5%
1/4W
R345
1-249-432-11 CARBON
18K
5%
1/4W
R346
1-249-426-11 CARBON
5.6K
5%
1/4W
R347
1-249-433-11 CARBON
22K
5%
1/4W
R348
1-249-409-11 CARBON
220
5%
1/4W
R349
1-249-425-11 CARBON
4.7K
5%
1/4W
R350
1-249-433-11 CARBON
22K
5%
1/4W
R351
1-249-421-11 CARBON
2.2K
5%
1/4W
R354
1-249-427-11 CARBON
6.8K
5%
1/4W
R355
1-249-429-11 CARBON
10K
5%
1/4W
R356
1-249-430-11 CARBON
12K
5%
1/4W
R357
1-247-843-11 CARBON
3.3K
5%
1/4W
R358
1-249-435-11 CARBON
33K
5%
1/4W
R359
1-249-417-11 CARBON
1K
5%
1/4W
R360
1-249-417-11 CARBON
1K
5%
1/4W
R361
1-249-417-11 CARBON
1K
5%
1/4W
R362
1-249-417-11 CARBON
1K
5%
1/4W
R363
1-249-437-11 CARBON
47K
5%
1/4W
R364
1-249-417-11 CARBON
1K
5%
1/4W
R367
1-249-417-11 CARBON
1K
5%
1/4W
R368
1-249-418-11 CARBON
1.2K
5%
1/4W
R369
1-249-413-11 CARBON
470
5%
1/4W
R370
1-247-881-00 CARBON
120K
5%
1/4W
R371
1-247-807-31 CARBON
100
5%
1/4W
R372
1-249-426-11 CARBON
5.6K
5%
1/4W
R373
1-247-882-11 CARBON
130K
5%
1/4W
R375
1-247-881-00 CARBON
120K
5%
1/4W
R376
1-249-409-11 CARBON
220
5%
1/4W
R377
1-249-433-11 CARBON
22K
5%
1/4W
R378
1-249-430-11 CARBON
12K
5%
1/4W
R379
1-247-889-00 CARBON
270K
5%
1/4W
R386
1-249-410-11 CARBON
270
5%
1/4W
R402
1-249-419-11 CARBON
1.5K
5%
1/4W
R403
1-249-416-11 CARBON
820
5%
1/4W
R404
1-249-419-11 CARBON
1.5K
5%
1/4W
R405
1-249-416-11 CARBON
820
5%
1/4W
R406
1-247-807-31 CARBON
100
5%
1/4W
R407
1-247-807-31 CARBON
100
5%
1/4W
R408
1-247-807-31 CARBON
100
5%
1/4W
R409
1-247-807-31 CARBON
100
5%
1/4W
R412
1-247-807-31 CARBON
100
5%
1/4W
R413
1-247-807-31 CARBON
100
5%
1/4W
R414
1-247-807-31 CARBON
100
5%
1/4W
R415
1-247-807-31 CARBON
100
5%
1/4W
R416
1-247-807-31 CARBON
100
5%
1/4W
R417
1-247-807-31 CARBON
100
5%
1/4W
R418
1-249-414-11 CARBON
560
5%
1/4W
R419
1-249-417-11 CARBON
1K
5%
1/4W
R420
1-249-409-11 CARBON
220
5%
1/4W
R421
1-249-409-11 CARBON
220
5%
1/4W
R422
1-249-409-11 CARBON
220
5%
1/4W
R423
1-249-409-11 CARBON
220
5%
1/4W
< VARIABLE RESISTOR >
RV301
1-241-764-11 RES, ADJ, CARBON 10K
RV302
1-241-762-11 RES, ADJ, CARBON 2.2K
RV303
1-241-762-11 RES, ADJ, CARBON 2.2K
RV304
1-241-768-11 RES, ADJ, CARBON 220K
RV351
1-241-764-11 RES, ADJ, CARBON 10K
RV354
1-241-768-11 RES, ADJ, CARBON 220K
MAIN
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
line with mark 0 are critical for safety.
Replace only with part number specified.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
28
TC-S3
< TRANSFORMER >
T301
1-423-980-11 TRANSFORMER, BIAS OSCILLATION
**************************************************************
1-680-719-11 TC-PANEL-A DECK BOARD
*********************
< LED >
D300
8-719-058-03 LED SEL5423E-TP15 (N)
D301
8-719-058-03 LED SEL5423E-TP15 (n)
< RESISTOR >
R398
1-249-429-11 CARBON
10K
5%
1/4W
R399
1-249-431-11 CARBON
15K
5%
1/4W
R400
1-249-434-11 CARBON
27K
5%
1/4W
R401
1-249-438-11 CARBON
56K
5%
1/4W
< SWITCH >
S312
1-771-410-21 SWITCH, TACTILE (x)
S313
1-771-410-21 SWITCH, TACTILE (n)
S314
1-771-410-21 SWITCH, TACTILE (N)
S315
1-771-410-21 SWITCH, TACTILE (. m)
S316
1-771-410-21 SWITCH, TACTILE (M >)
**************************************************************
1-680-720-11 TC-PANEL-B DECK BOARD
*********************
< LED >
D302
8-719-058-03 LED SEL5423E-TP15 (N)
D303
8-719-058-03 LED SEL5423E-TP15 (n)
< RESISTOR >
R387
1-249-411-11 CARBON
330
5%
1/4W
R388
1-249-413-11 CARBON
470
5%
1/4W
R389
1-249-414-11 CARBON
560
5%
1/4W
R390
1-249-415-11 CARBON
680
5%
1/4W
< SWITCH >
S301
1-771-410-21 SWITCH, TACTILE (M >)
S302
1-771-410-21 SWITCH, TACTILE (. m)
S303
1-771-410-21 SWITCH, TACTILE (N)
S304
1-771-410-21 SWITCH, TACTILE (n)
S305
1-771-410-21 SWITCH, TACTILE (x)
**************************************************************
1-680-721-11 TC-SUB PANEL-A BOARD
********************
< RESISTOR >
R395
1-247-843-11 CARBON
3.3K
5%
1/4W
R396
1-249-425-11 CARBON
4.7K
5%
1/4W
R397
1-249-427-11 CARBON
6.8K
5%
1/4W
< SWITCH >
S310
1-771-410-21 SWITCH, TACTILE (DOLBY NR)
S311
1-771-410-21 SWITCH, TACTILE (DIRECTION)
**************************************************************
1-680-722-11 TC-SUB PANEL-B BOARD
*********************
< RESISTOR >
R391
1-249-417-11 CARBON
1K
5%
1/4W
R392
1-249-418-11 CARBON
1.2K
5%
1/4W
R393
1-249-420-11 CARBON
1.8K
5%
1/4W
R394
1-249-422-11 CARBON
2.7K
5%
1/4W
< SWITCH >
S306
1-771-410-21 SWITCH, TACTILE (REC PAUSE/START)
S307
1-771-410-21 SWITCH, TACTILE (CD SYNC)
S308
1-771-410-21 SWITCH, TACTILE (HI-DUB)
S309
1-771-410-21 SWITCH, TACTILE (EDIT)
**************************************************************
MISCELLANEOUS
**************
**************
2
1-773-048-11 WIRE (FLAT TYPE) (17 CORE)
6
1-757-632-11 CORD (WITH CONNECTOR) 15P
HP901
A-2004-771-A BASE (A) ASSY, HEAD
HRPE901A-2004-772-A BASE (B) ASSY, HEAD
M901
M901
X-3378-241-1 MOTOR ASSY (CAPSTAN)
PM901
1-454-887-32 SOLENOID, PLUNGER
PM902
1-454-887-32 SOLENOID, PLUNGER
************************************************************
**************
HARDWARE LIST
**************
HARDWARE LIST
**************
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S
#2
7-685-853-04 SCREW +BVTT 2X6 (S)
#3
7-685-871-01 SCREW +BVTT 3X6 (S)
#6
7-628-254-05 SCREW +PS 2.6X5
#7
7-623-921-01 RING, RETAINING, CAPSTAN
MAIN TC-PANEL-A DECK TC-PANEL-B DECK
TC-SUB PANEL-A TC-SUB PANEL-B