GRUNDIG Service
Chassis 16.1
3 - 1
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Übersicht /Overview
Subject to change without notice
2
6
10
14
9
13
1
5
TR901
C913
2n2
R915
22K
C914
2n2
R918
33K
R917
6.8K
P901
5K
C923
56pF
R916
15K
C920
2n2 400V
R920
4M7 0.5W
63V
C912
2.2uF
63V
16V
25V
TDA16847
2
11
4
7
9
1
6
3
14
8
13
10
12
5
IC901
C908
47uF/16V
D906
1N4148
R906
15R
T901
SPP03N65
G
250Vac
250Vac
250Vac
(2SK2545)
R569
4R7
D905
RGP10J
R903
68K
C906
33nF
C905
68uF
2W
630V
400V
D904
RF2007
D902
RF2007
D903
RF2007
D901
RF2007
C917
1n 1KV
C918
1n 1KV
C903
1n 1KV
C904
1n 1KV
C922
xx pF
R908
820K
R901
5R1 NTC
L901
LINE FILTER
C902
100nF
C901
220nF
S901
2.5 A
4
3
1
2
SW901
POWER SWITCH
1
2
X901
2 WAY PLUG
R902
PTC
C915
100nF
1
2
X902
2 WAY PLUG
25V
S
D
D950
RGP10J
D951
RGP50D
C950
220pF 1KV
C961
47nF
C951
47uF 160V
C953
33uF / 160V
L950
50uH Choke
ZD570
33V
R950
39K 0.5W
R956
5R6
OUT
IN
GND
IC953
78L05
C954
1000uF
C965
22uF / 16V
C962
47nF
C955
47nF
C964
47nF
R954
1K3 %1
R953
240R %1
T950
BC337
R957
100R
R919
3K9
C966
10uF
C967
47nF
ZD952
5.6V
T906
BC848B
C956
4.7uF
C963
47nF
C957
10uF
C958
47nF
16V
16V
16V
P2.0-IRin
1
RESET
2
P0.7
3
P0.6
4
P0.5
5
P0.4
6
P0.3
7
P0.2
8
P0.1
9
P0.0
10
P3.7
11
P3.6
12
P3.5
13
P3.4
14
P3.3-B
15
P3.2-G
16
P3.1-R
17
P3.0-FB
18
P5.1-SDA
19
P5.B-SCL
20
VCC
21
TEST
22
WSCF
23
WSCR
24
AVDD3
25
TEST1
26
MCFM
27
TEST2
28
TXCF
29
TEST3
30
AVDD2
31
TEST4
32
CVBS2
33
CVBS1
34
GND
35
GND0
36
TEST5
37
PXFM
38
AVDD
39
HSYNC
40
VSYNC
41
P4.0
42
P4.1
43
P4.2
44
P4.3
45
P4.4
46
P4.5
47
ST-BY SPKR
48
MUTE
49
OSC out
50
OSC in
51
P2.5 VS
52
P2.4
53
P2.3
54
P2.2
55
P2.1
56
IC402
ST92195
R434
4K7
R435
8K2
R431
XX R
Q401
4MHz
C413
39pF
C412
39pF
R405
2K7
R433
2K7
C410
2u2 / 16V
C437
560pF
C456
10uF / 16V
C416
10uF / 16V
C420
47nF
C409
4n7
C424
22pF
R416
5K6
R419
2R2
R412
15K
R418
2R2
C421
470nF
C414
82pF
C402
47nF
L403
18uH
R420
2R2
C401
47nF
C419
22p
C415
2n2
R415
5K6
C408
4n7
C418
10uF / 16V
R421
2R2
C407
1nF
L404
18uH
IR_IN
R448
100R
R447
100R
R408
4K7
R407
4K7
SW404
SW403
SW402
R406
4K7
R403
2K2
R402
4K7
P3
P2
P1
S401
TSOP1738
R417
330R
R401
10K
C411
22uF / 16V
C434
22uF / 16V
L402
18uH
R456
8k2
R457
10K
T408
BC848B
ZD407
5.1V
T406
BC848B
R411
470R
R425
680R
R450
2K2
R429
4K7
D418
LED
E0
1
E1
2
E2
3
GND
4
SDA
5
SCL
6
MODE_WC
7
VCC
8
IC401
24C08
C404
47nF
1
2
3
4
5
X402
SERVICE_PLUG
R440
4K7
SIFIN1
1
SIFIN2
2
AGCSIFCAP
3
IFVREF
4
AGCPIFCAP
5
PIFIN1
6
PIFIN2
7
AGC
8
IFPLL
9
GNDIF
10
QSS
11
VCCIF
12
INTCVBSO
13
EXTAUDIN
14
PIFLC1
15
PIFLC2
16
VCC2
17
CVBSIN1
18
GND2
19
CVBSIN2
20
BS
21
Y_CVBSIN3
22
CHR
23
APR
24
B_EXT
25
G_EXT
26
R_EXT
27
FB_EXT
28
NC
29
B_OUT
30
G_OUT
31
R_OUT
32
ICATH
33
BOSD
34
GOSD
35
ROSD
36
FBOSD
37
XTAL3
38
XTAL2
39
XTAL1
40
CLPF
41
VAMP
42
GND1
43
CVBSO1
44
VCC1
45
BCLSAF
46
VERT
47
HOUT
48
LBF_SSC
49
SLPF
50
SCL
51
SDA
52
VCCD
53
GND0
54
AUDIOOUT
55
FMCAP
56
IC101
STV2246
C105
10uF / 16V
C101
1uF / 16V
C108
22nF
1
2
3
4
5
SAW01
TABLE
L104
1uH
C110
1nF
C109
330nF
R102
150R
R142
220R
L101
10uH
C114
47nF
C113
47uF
LC100
TOKO
C134
10uF / 16V
C136
1uF / 16V
C139
1uF / 16V
C138
1uF / 16V
C137
1uF / 16V
C120
100nF
C122
100nF
C121
100nF
C123
47nF
R131
330K
1
2
3
4
5
6
X101
CRT_RGB_OUT
R137
270R
R136
270R
R135
270R
R112
1K
R138
47K
R111
470R
R144
1K
R110
470R
R145
1K
R109
470R
R146
1K
C117
47nF
C118
47nF
C116
47nF
R115
5K6
R123
5K6
C119
100nF
Q102
3.58MHz
Q101
4.43MHz
C129
4n7
R101
27K
C124
100nF
C135
220uF
C130
2u2
C127
100uF / 16V
C142
10uF / 16V
C126
22uF / 16V
C115
47nF
R133
2K2
R132
2K2
R134
8K2
R118
100R
R119
100R
R116
470R
R130
56K
C128
4n7
R122
8K2
L102
10uH
16V
D107
1N4148
16V
C143
1uF / 16V
R139
3K3
R120
1K
R107
47R
R129
220R
R108
47R
R126
180R
R104
TABLE
R124
150R
R114
100R
R105
TABLE
R125
180R
R106
47R
T103
BC848B
T102
BC848B
T101
BC848B
L105
TABLE
L103
1uH
L106
1uH
L107
TABLE
C140
10n
C111
10uF
C112
820p
C132
3n9
C131
820p
F101
TABLE
C141
1uF / 16V
C107
10uF
C102
10nF
R117
1K
25V
C106
10uF 16V
63V
R436
4K7
R437
39K
R442
220R
R441
220R
C430
47uF
C432
47pF
C429
560pF
C435
10nF
L401
18uH
AGC
1
2
3
SCL
4
SDA
5
+5V
6
+5V
7
NC
8
+33V
9
IF1
10
IF2
11
GND4
15
GND3
14
GND2
13
GND1
12
TU100
TUNER
16V
C187
1nF
R192
3K3
R194
100R
R191
10K
R190
3K3
R193
2K2
C185
220nF
C186
220nF
1
2
3
4
5
SAW02
TABLE
T105
BC848B
T108
BC848B
R195
0R
D181
BA682
D180
BA682
1
2
3
4
5
6
7
8
9
10
11
12
X102
STEREO_1_OUT
C148
220p
R152
75R
R153
68R
R154
75R
R166
75R
R164
75R
R163
75R
R159
330R
R160
100R
C150
1nF
C151
1nF
R161
330R
R162
100R
C152
1nF
C153
1nF
R165
1K
C154
220p
C155
470p
R167
1K
C156
220p
C157
470p
INV
9
BUFFER
8
RAMP
7
GND
6
VREF_DEC
5
H_ADJ
4
TRIG
3
OUT
2
PWR
1
VCC
10
FL
YBACK
11
IC501
TDA8174AW
R501
2R2 0.5W
R502
470R
R503
22R
R508
1K8
R516
1K6
R509
TABLE
R519
1K
R506
150K
R504
1K
R513
10K
R527
TABLE
R505
150K
R511
2K7
R512
1K8
R510
TABLE
R524
3K9
R520
1K
R521
100K
R522
8K2
R523
2K2
C506 10uF
C505
1uF
C510
100uF
C503
1000uF / 35V
C504
220uF / 25V
C512
1uF
C511
1uF / 16V
T501
BC848B
T502
BC848B
D502
RF2007
C501
220nF
1
2
X501
VER_DEFL
R518
82K
C509
470pF
C508
15nF
C513
100nF
C508A
33nF
0.5W
0.5W
16V
TABLE
16V
16V
50V
D503
EHT - 29KV
600M
FOCUS
UG2
3
10
5
2
6
7
9
11
1
TR552
DST 12.3
C554
390nF
C566
560pF
C555
6.8nF
C556
330nF
C561
1n 1kV
C563
100nF
C553
1uF / 160V
C552
10uF
C560
10uF
C557
470uF
C564
TABLE
R558
10K
R557
470R
R555
47R
R551
33R
R554
82R 3W
R553
330R
R559
3.3R
D552
BA157
D556
BA157
D553
RGP10J
D560
RGP10J
D559
D557
1N4148
D558
R552
1K
R565
10K
R526
22K
T551
STX112
T552
BU808DFI
L551
LIN.HOR.
L502
6.8uH
1
2
3
4
5
X551
HOR_DEFL
R560
TABLE
50V
TABLE
0.5W
0.5W
250V
2W
250V
0.5W
R568
680R
C558
10nF
C562
100nF
C570
10nF
U CRT
Uv.bes
Uv.ref
BCL
GND2
Text
Text
R562
10K
R563
TABLE
R564
680R
1
2
3
4
X552
CRT_HT_OUT
250V
50V
16V
LINK
C166
22nF
C438
560pF
C405
10nF
R404
10K
R414
10K
16V
C125
1uF / 16V
1
2
3
4
5
6
7
8
9
X103
STEREO_2_IN
R186
10K
R185
100R
T109
BC848B
C184
68pF
F102
T40.4
R128
1K2
R187
330K
R188
330K
D103
1
2
3
X104
SVHS
500V
R914
820R
C911
120pF
R913
2M2 1W
D908
1N4148
R912
220K
D907
1N4148
R907
820K
C916
3n9
R921
47R
R910
33K
R905
10K
D909
1N4148
ZD901
5.1V 1/4W
C919
330nF
R911
560K %1
C921
680pF
R909
3K3
C909
10nF 63V
C910
47nF 63V
R904
39K
HEATER
R923
2R2
R922
560K %1
DEGAUSS
OUT
IN
ADJ
IC951
LM317T
T902
BC327
R184
100R
R183
100R
R182
100R
R189
100R
1
2
3
4
5
X401
C169
1n
C188
10n
C571
47u/16v
C149
220p
R157
68R
R158
75R
R174
75R
R168
330R
R169
100R
C158
1nF
C159
1nF
R171
100R
C160
1nF
C161
1nF
R172
1K
C162
220p
C163
470p
R173
1K
C164
220p
C165
470p
R121
100R
R127
1K
T104
BC848B
C104
10nF
R113
47R
C144
10uF/63V
OPTION
R438S
8K2
R432
4K7
OPTIONEL
R422
4K7
R423
10K
T402
BC848
OPTIONEL
C565
xx
R451
100R
C439
47u/16V
C179
22n
C145
47u/16V
C175
100p
C176
100p
C177
100p
C180
27p
R958
22R 0.5W
Y1
1
Y0
2
Z1
3
ZOUT
4
Z0
5
EN
6
VEE
7
VSS
8
VDD
16
YOUT
15
XOUT
14
X1
13
X0
12
CONT_X
11
CONT_Y
10
CONT_Z
9
IC102
MC14053BD
R179
47K
R180
47K
R177
47K
R178
47K
R176
4K7
R175
4K7
R206
0R
R207
0R
R205
0R
R181
0R
C170
10uF
C174
2.2uF
C173
2.2uF
C168
100nF
C167
100nF
C172
22nF
C192
10nF
C171
22nF
16V
16V
16V
R202
0R
R203
0R
R208
330R
R201
0R
R209
0R
R140
1K
C178
560p
C191
10n
C194
10n
C195
10n
C196
10n
C200
68p
R196
0R
R200
0R
L-L'
L-L'
L-L'
OPT. 2 . SCART
OPTION 2SC+FAV
C440
100p
C441
100p
C442
100p
R961
470K
R452
0R
R453
4k7
C941
1nF
R940
option
R941
100R
C450
33pF
C431
47pF
C551
2n2
L104A
1uH
C103
1uF / 16V
OPTIONEL
C183
10u/50V
C190
2.2uF/16V
R198
47K
R199
10K
R150
470K
R149
100K
R151
100K
T110
BC848
T111
BC848
SCAR
T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
20
21
19
17
SCAR
T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
20
21
19
17
out
in
SK101
C380
1.5n
C379
1.5n
C388
220n
C376
100n
C377
220n
C378
100n
R354
2k2
R355
2k2
R356
4k7
R357
4k7
C381
3.3n
C387
3.3n
C385
100n
C384
1000u/16V
11
10
12
9
6
8
3
16
1
4
14
17
2
15
Out1-
Out1+
Out2-
Out2+
Vcc
In1-
In1+
In2-
In2+
Mode
Svr
Gnd
IC317
TDA8944J
C383
100n
C382
100n
R359
4R7/0.5W
R358
4R7/0.5W
C425
1u/16V
R443
4k7
R426
4k7
T404
BC848
T403
BC848
R430
2k7
R428
2k7
R439
2k7
R427
2k7
R444
10k
R445
10k
C444
47pF
C445
47pF
C197
47pF
C198
47pF
C199
47pF
C201
47pF
C907
470pF 2KV
1
2
3
4
X320
C386
10u/16V
S902
FUSE¤
T4A
Non L-L'
Non L-L'
T\U+2584PLER
20"SS
20"EK
20"TH
21"SS
21"NO
21"TH
21"LG-PH
21"PH
21"TH/PF
U1
118V
119V
118V
115V
117V
112V
118V
117V
125V
C557
470uF
220uF
470uF
C504
C450
33pF
1000uF
470uF
-
C554
9.1nF
220nF
-
8.2nF
5.6nF
6.2nF
7.5nF
*6.8nF
8.2nF
7.5nF
C555
390nF
8.2nF
D950
RGP10J
RGP15J
L551
70uH
*55uH
120uH
*55uH
*55uH
70uH
100uH
470uF
470uF
470uF
470uF
470uF
470uF
470uF
470uF
470uF
470uF
470uF
390nF
390nF
390nF
390nF
390nF
390nF
390nF
220uF
220uF
-
-
-
-
-
-
RGP10J
RGP10J
RGP10J
RGP10J
RGP10J
RGP10J
RGP10J
70uH
70uH
R509
R510
R520
R527
R560
R563
R563
R568
R706\R707
R917
R923\R924
1.5R
1.5R
1.5R
1.2R
1.5R
1.2R
1.2R
1.2R
1.2R
100R
100R
100R
*47R
*100R
100R
100R
100R
100R
1K
100K
1K
*1K
1K
100K
100K
1K
2.7K
680K
680K
680K
680K
680K
*680K
470K
680K
*680K
0.47R
0.68R
0.68R
*0.22R
1R
0.22R
*1.5R
1.8R
0.68R
8.2K
6.8K
8.2K
6.8K
6.8K
6.8K
6.8K
8.2K
7.5K
9.1K
9.1K
9.1K
7.5K
7.5K
7.5K
7.5K
9.1K
7.5K
1K
1K
1K
*1K
1K
*470R
470R
470R
680R
-
-
-
-
141222/220R
-
-
-
-
6.8K
6.8K
6.8K
6.8K
6.8K
8.2K
6.8K
6.8K
4.7K
1.5R
1.5R
1.5R
-
-
-
-
-
-
C564
470uF
470uF
470uF
220uF
220uF
220uF
220uF
220uF
220uF
C565
330pF
-
1.5nF
*1.5nF
-
*1nF
330pF
-
-
+5V_AL
+5V_AL
+5V_AL
+5V_AL
+5V A
+5V A
+5V A
+5V A
+5V A
+5V A
+5V A
+5V A
+5V B
+5V B
+5V B
+5V B
+5V B
+5V B
+5V B
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+13VA
+13V
+13V
+13V
+13V
+33V
+33V
STAT1
SC2 CVBS
SC2 CHR
B_SCRT
G_SCRT
R_SCRT
F_BLSC
B_SCRT
G_SCRT
R_SCRT
F_BLSC
STAT1
CVBS_OUT_SC2
CVBS1
CVBS1
CVBS_OUT_SC1
CVBS_OUT_SC1
STAT2
STAT2
SC2 CHR
CVBS_OUT_SC2
SC2 CVBS
SDA
SCL
SCL
SDA
SDA
SCL
INTRC/QSS
INTRC/QSS
CVBS_TXT
CVBS_TXT
BOSD
GOSD
ROSD
FBOSD
CVBS_TXT/U
IF2
IF1
IF2
IF1
IF2
AGC
AGC
SDA
SCL
MSP_RES
MSP_RES
SDA
SCL
AV
3 SVHS
AV3 SVHS
V_AMP
FLAYBACK
FLA
YBACK
VSYNC
HSYNC
VSYNC
HSYNC
V_AMP
V_OUT
BCL
BCL
SDA
SCL
H_OUT
H_OUT
LFB
LFB
V_LIN
V_LIN
L_L'
L_L'
CVBS_TXT/U
OFF (ST-BY)
OFF (ST-BY)
U1
U1
FBOSD
ROSD
GOSD
BOSD
V_OUT
NOT: * ile isaretlenen degerler tip veya DST versiyonuna göre degisebilir.
The values marked with asterisk may change with the CRT or DST version.
100p
CHR
VIDEO
C433
1nF
1
2
HS301
SES SOGUTCUSU
Right
Left
Right
Left
R
R
L
L
R446
100K
R449
220R
C447
220pF
C133
22pF
AUD_CLO
1
NC1
2
NC2
3
DCTROUT1
4
DCTRO0
5
ADR_SEL
6
STBYQ
7
NC3
8
SCL
9
SDA
10
I2S_CL
11
I2S_WS
12
I2SDAOUT
13
I2SDAIN1
14
ADR_DA
15
ADR_WS
16
ADR_CL
17
DVSUP
18
DVSS
19
I2SDAIN2
20
NC4
21
NC5
22
NC6
23
RESETQ
24
DACA_R
25
DACA_L
26
VREF2
27
DACM_R
28
DACM_L
29
DAC_C
30
DAC_SUB
31
DAC_S
32
SC2_O_R
33
SC2_O_L
34
VREF1
35
SC1_O_R
36
SC1_O_L
37
CAPL_A
38
AHVSUP
39
CAPL_M
40
AHVSS
41
AGNDC
42
SC4_I_L
43
SC4_I_R
44
ASG4
45
SC3_I_L
46
SC3_I_R
47
ASG2
48
SC2_I_L
49
SC2_I_R
50
ASG1
51
SC1_I_L
52
SC1_I_R
53
VREFTOP
54
MONO_IN
55
AVSS
56
AVSUP
57
58
ANA_IN-
59
60
TESTEN
61
XTAL_IN
62
XTAL_OUT
63
NC7
64
IC316
MSP34XX
C342
2.2nF
C343
2.2nF
C348
100nF
C334
1nF
C335
1nF
C332
1nF
C354
10nF
C355
10nF
C357
100pF
C333
1nF
C349
100nF
C352
1.5pF
C353
1.5pF
C324
1nF
C325
1nF
C347
100nF
OUT
IN
GND
IC315
78L05
C344
47uF
C317
47nF
C323
1nF
C345
47uF
C356
33nF
R321 100R
R322 100R
MSP_RES
R323
220R
R324
1K
C330
1nF
C331
1nF
R327
1K
C328
1nF
C329
1nF
R326
1K
C326
1nF
C327
1nF
R325
1K
T318
BC858B
T319
BC858B
R318
3.3K
R315
330R
R319
3.3K
R316
330R
C338
100uF / 16V
C339
100uF / 16V
C319
1nF
C320
1nF
1
2
3
X316
HEADPHONE
C315
100uF
C316
47nF
C318
1nF
INTRC/QSS
RIGHT
+8V A
+8V A
LEFT
+8V C
T317
BC858B
R317
3.3K
T320
BC858B
R320
3.3K
C322
1nF
C321
1nF
C371
47uF / 16V
C370
47uF / 16V
C369
47uF / 16V
C368
47uF / 16V
C367
10uF / 63V
C366
10uF / 63V
C365
3.3uF
C362
330nF
C363
330nF
C364
1nF
R328
470R
C361
4.7uF / 16V
C360
4.7uF / 16V
C359
4.7uF / 16V
C358
4.7uF / 16V
C372
10uF
1
2
3
X318
CINCH
1
2
3
4
5
6
7
8
9
10
11
12
X317
MSP_RES
SCL
SDA
+8V A
C340
330nF
C341
330nF
Q315
18.432MHz
INTRC/QSS
16V
MONOIN
63V
50V
T316
BC558
T315
BC558
16V
16V
+8V C
STEREO MODUL
RIGHT
LEFT
R
L
R335
0R
R345
470R
1
2
3
4
5
6
7
8
9
X315
STEREO_2_IN
R338
0R
R337
0R
Optional
C373
33nF
C336
47pF
C337
47pF
4
5
6
7
8
9
10
11
12
n.c.
G1
GREEN
G2
RED
HT
HT
BLUE
GND
GND
X703
CRT SOKET
1
3
4
5
6
2
X701
RGB
crt
R702
220R
C701
47p
T701
BF422
R710
15k
155V
R711
390R
crt
C703
390p
R712
100R
crt
R713
2.7k
8V_
D702
1N4148
C705
470p
T702
BF421
R714
1k
R703
220R
C706
47p
T703
BF422
R715
15k
155V
R716
390R
crt
C707
390p
R717
100R
crt
R718
2.7k
8V_
D703
1N4148
C708
470p
T704
BF421
R719
1k
R704
220R
C709
47p
T705
BF422
R720
15k
155V
R721
390R
crt
C710
390p
R722
100R
crt
R723
2.7k
8V_
D704
1N4148
C711
470p
T706
BF421
R724
1k
8V_
R725
1.5K
R726
1.5K
R727
1.5K
C712
2.2n
C713
100n/250V
crt
155V
1
2
3
X702
CRT
G2
AQUA
SMPS
R701
100R
R706
220R
R707
220R
R709
220R
C702
10u/250V
D701
1N4007
155V
Blue
Green
Red
Icatch
R728
100k 1/2W
CRT BOARD
RIGHT
LEFT
C346
220pF
C375
220nF
C374
100nF
0 PAD
KABLO2
KABLO5A
KABLO5B
+13VA
+13VA
C443
100p
C446
C453
100p
100p
C452
100n
C451
100n
C448
100n
C449
C189
100p
C193
100p
T407
BC848B
R458
68k
R459
1k5
+13V
R455
100R
R454
100R
C455
100u / 16V
C454
100u / 16V
L701
10uF
S./P. 3-3
S./P. 3-4
S./P.
3-6
S./P. 3-7
S./P. 3-4
S./P.
3-5
S./P. 3-2
S./P. 3-8
S./P. 3-15
S./P. 3-13
S./P. 3-2
S./P. 3-5
Summary of Contents for ARCANCE 55 Flat MF 55-2401 IT/ TOP
Page 18: ...GRUNDIG Service Chassis 16 1 3 11 Chassis Ansicht auf die L tseite View on solder side...
Page 19: ...GRUNDIG Service Chassis 16 1 3 12 Chassis Ansicht auf die L tseite View on solder side...
Page 21: ...GRUNDIG Service Chassis 16 1 3 14 AV MODUL OPTIONAL AV Modul Option AV Module Option...
Page 23: ...GRUNDIG Service Chassis 16 1 3 16 Stereo Modul Stereo Module...
Page 28: ...This file has been downloaded from www electronica ro Service Manuals Schematic Diagram Repair...