Traynor Bassmaster YBA200 User manual

Bassmaster
YBA200
ALL
TUBE
TYPE: YS1029
U.S.A.
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
Voice: [phone]
Fax: [phone]
WORLD HEADQUARTERS
WEB ACCESS: http://www.yorkville.com
CANADA
Yorkville Sound
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
Voice: [phone]
Fax: [phone]
Quality and Innovation Since 1963
Printed in Canada
SERVICE MANUAL
YBA200

IMPORTANT SAFETY INSTRUCTIONS
safety-4v2.eps Aug 26/05
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
Read Instructions
The Owner’s Manualshould be read and understood
before operation of your unit. Please, save these instruc-
tions for future reference.
Packaging
Keep the box and packaging materials, in case the unit
needs to be returned for service.
Warning
When using electric products, basic precautions should
always be followed, including the following:
Power Sources
Your unit should be connected to a power source only of the voltage
specified in the owners manual or as marked on the unit. This unit has
a polarized plug. Do not use with an extension cord or receptacle
unless the plug can be fully inserted. Precautions should be taken so
that the grounding scheme on the unit is not defeated.
Hazards
Do not place this product on an unstable cart, stand, tripod, bracket or
table. The product may fall, causing serious personal injury and serious
damage to the product. Use only with cart, stand, tripod, bracket, or
table recommended by the manufacturer or sold with the product.
Follow the manufacturer’s instructions when installing the product and
use mounting accessories recommended by the manufacturer.
The apparatus should not be exposed to dripping or splashing water;
no objects filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the
external wiring connected to these terminals require installation by an
instructed person or the use of ready made leads or cords.
No naked flame sources, such as lighted candles, should be
placed on the apparatus.
Power Cord
The AC supply cord should be routed so that it is unlikely that it will be
damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT.
Service
The unit should be serviced only by qualified service personnel.
AVIS:
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,
N’ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)
NE CONTIENT AUCUNE PIECE
REPARABLE PAR L’UTILISATEUR.
CONSULTEZ UN TECHNICIEN QUALIFIE
POUR L’ENTRETIENT
INSTRUCTIONS RELATIVES AU RISQUE
DE FEU, CHOC ÉLECTRIQUE, OU
BLESSURES AUX PERSONNES
Veuillez Lire le Manuel
Il contient des informations qui devraient êtres comprises
avant l’opération de votre appareil. Conservez S.V.P. ces
instructions pour consultations ultérieures.
Emballage
Conservez la boite au cas ou l’appareil devait être
retourner pour réparation.
Attention:
Lors de l’utilisation de produits électrique, assurez-vous
d’adhérer à des précautions de bases incluant celle qui
suivent:
Alimentation
L’appareil ne doit être branché qu’à une source d’alimentation
correspondant au voltage spécifié dans le manuel ou tel qu’indiqué sur
l’appareil. Cet appareil est équipé d’une prise d’alimentation polarisée.
Ne pas utiliser cet appareil avec un cordon de raccordement à moins
qu’il soit possible d’insérer complètement les trois lames. Des
précautions doivent êtres prises afin d’eviter que le système de mise à
la terre de l’appareil ne soit désengagé.
Risque
Ne pas placer cet appareil sur un chariot, un support, un trépied ou une
table instables. L’appareil pourrait tomber et blesser quelqu’un ou subir
des dommages importants. Utiliser seulement un chariot, un support,
un trépied ou une table recommandés par le fabricant ou vendus avec
le produit. Suivre les instructions du fabricant pour installer l’appareil et
utiliser les accessoires recommandés par le fabricant.
Il convient de ne pas placer sur l’appareil de sources de flammes
nues, telles que des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des
éclaboussures et qu’aucun objet rempli de liquide tel que des vases
ne doit être placé sur l’appareil.
Les dispositifs marqués d’une symbole “d’éclair” sont des parties
dangereuses au toucher et que les câblages extérieurs connectés à
ces dispositifs de connection extérieure doivent être effectivés par un
opérateur formé ou en utilisant des cordons déjà préparés.
Cordon d’Alimentation
Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS
L’APPAREIL si le cordon d’alimentation est endommagé.
Service
Consultez un technicien qualifié pour l’entretien de votre appareil.

YBA200
YS No. Description Qty. YS No. Description Qty.
6397 JEWELED PILOT LAMP AMBER REG V1 1 2007 1/4W 1R 5%FLAME PROOF T&R RES 1
5906 RED 3MM LED 1V9 20MA .4SPCER T&
R
1 2008 1.0W 10R 5%FLAME PROOF T&R RES 4
6398 RED 5MM LED 1V5 20MA HIGH EFF 1 4612 1/2W 18R 5% T&R RES 3
6399 YEL 5MM LED 1V5 20MA HIGH EFF 1 4704 5.0W 33R 5% BLK RES 1
6888 HER508 1000V 3A0 DIODE ULTRAFAST 4 2023 1/8W 220R0 1%FLAME PROOF T&R RES 2
6438 1N4007 400V 1A0 DIODE T&R 9 2024 1/8W 249R 2%FLAME PROOF T&R RES 2
6440 1N750ARL 4V7 0W5 ZENER 5% T&R 1 4713 1.0W 470R 5% T&R RES 2
6426 1N5254B 27V0 0W5 ZENER 5% T&R 1 4869 1/4W 750R 5% T&R RES 1
6475 1N5262B 51V0 0W5 ZENER 5% T&R 8 4822 1/4W 820R 5% T&R RES 4
6871 MC7915CT TO220 N 15V0 REG V2 1 4823 1/4W 1K 5% T&R RES 1
6872 MC7815CT TO220 P 15V0 REG V1 1 4854 1/4W 1K2 5% T&R RES 1
5101 BC550C TO92 NPN TRAN T&R TB 3 4824 1/4W 1K5 5% T&R RES 1
5104 MPSA56 TO92 PNP TRAN T&R TA 4 4791 1/4W 1K54 1% T&T RES 1
6882 TL072CP IC FET DUAL OP AMP 1 4738 5.0W 1K8 5% BLK RES 4
5400 _10P 100V 10%CAP T&R BEAD NPO 1 4808 1/4W 2K 5% T&R RES 1
5203 _47P 100V 2%CAP T&R RAD CER.2"NPO 2 4847 1/4W 2K2 5% T&R RES 1
5197 220P 100V 2%CAP T&R RAD CER.2"NPO 1 4826 1/4W 3K3 5% T&R RES 1
5816 680P 100V 5%CAP T&R RAD CER.2"NPO 1 4827 1/4W 4K7 5% T&R RES 4
5206 __1N 400V 5%CAP T&R RAD .2"FLM 2 4663 1/2W 8K2 5% T&R RES 3
5208 __2N2 400V 5%CAP T&R RAD .2"FLM 1 4863 1/4W 8K2 5% T&R RES 3
5209 __4N7 250V 5%CAP T&R RAD .2"FLM 1 4829 1/4W 10K 5% T&R RES 9
6451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 5031 1.0W 10K0 5% T&R 4
5272 __6N8 100V 5%CAP T&R RAD .2"FLM 2 4860 1/4W 11K 5% T&R RES 2
5204 _10N 100V 10%CAP T&R RAD .2"FLM 2 4831 1/4W 18K 5% T&R RES 4
5834 _10N 250V 20%CAP BLK RAD POLY FLM 4 4832 1/4W 22K 5% T&R RES 1
5205 _15N 100V 10%CAP T&R RAD .2"FLM 1 4834 1/4W 47K 5% T&R RES 7
5840 _22N 400V 10%CAP BLK RAD POLY FLM 5 4848 1/4W 62K 5% T&R RES 1
6435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 4836 1/4W 68K 5% T&R RES 1
5222 _33N 100V 10%CAP T&R RAD .2"FLM 1 4837 1/4W 82K 5% T&R RES 1
5224 _47N 100V 10%CAP T&R RAD .2"FLM 1 4838 1/4W 100K 5% T&R RES 7
5228 100N 100V 5%CAP T&R RAD .2"FLM 9 4776 1/4W 113K 1% T&R RES 6
5314 100N 50V 10%CAP T&R BEAD X7R 1 4851 1/4W 120K 5% T&R RES 2
5865 100N 250V 10%CAP BLK RAD POLY FLM 1 4790 2.0W 150K 5%10MM BODY T&R RES 6
5229 150N 63V 10%CAP T&R RAD .2"FLM 2 4886 1/4W 200K 5% T&R RES 2
5231 220N 63V 10%CAP T&R RAD .2"FLM 2 4841 1/4W 220K 5% T&R RES 2
5882 220N 250V 10%CAP BLK RAD POLY FLM 3 6145 1/4W 249K 1%MINI T&R RES 4
5258 __4U7 63V 20%CAP T&R 8X7MM .2"EL 1 4843 1/4W 470K 5% T&R RES 6
5629 _10U 160V 20%CAP BLK 10X13MM EL 1 4844 1/4W 1M 5% T&R RES 6
5945 _10U 63V 20%CAP T&R RAD .2"EL 2 4845 1/4W 2M2 5% T&R RES 2
5959 _10U 450V 20%CAP BLK EL 1 4751 1/4W 22M 5% T&R RES 1
5260 _22U 50V 20%CAP T&R RAD .2"EL 8 3535 10" 9C-26AWG RIB 1 W/LCK HDR 098 1
5958 _22U 350V 20%CAP BLK 13X25 EL 4 8741 4-40 X 1/2 PAN PH MS JS500 2
5879 100U 16V 20%CAP T&R 8X7MM .2"EL 1 8842 #4 X 5/16 PAN QUAD TYPE A JS500 BLK 2
5619 330U 100V 20%CAP BLK 12X25MM EL 1 8832 6-32 X 1/4 PAN PH TAPTITE JS500 40
5957 470U 350V 20%CAP BLK 30X50 EL 2 8807 6-32 X 5/16 PAN PH MS JS500 6
5618 470U 25V 20%CAP BLK 10X15MM EL 5 8801 6-32 X 3/8 PAN PH TAPTITE JS500 2
4423 _20K 15AAUDIO 9MM P32 1 8829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA 14
4424 100K 1B LIN 9MM P32 2 8755 #6 X 5/8 PAN PH TYPE A JS500 BLAC
K
12
4425 500K 15AAUDIO 9MM P32 5 8809 10-32 X 1/4 PAN PH TAPTITE JS500 4
713 25 X 20 X 50 2 MIL PLASTIC BAG 1 8753 #10 X 1/2 PAN PH TYPE A JS500 BLAC
K
12
8521 RUBBER BUMPER WITH WASHER VERYSMALL 8 8756 #10 X 3/4 PAN PH TYPE A BLACK OXIDE 16
8522 RUBBER BUMPER WITH WASHER -SMALL- 4 8770 1/4-20 X 1 5/16 TRUSS PH MS JS500 4
8570 CORNER, 2 LEGS NOTCED LIP BLAC
K
8 8736 5/16-18X2-3/4 GRD 5 HEX BOLT JS500 2
3467 CLIP 205X032 14-16AWG DISC/INSUL 2 3865 1/2 PLASTIC HEX SPACER #6 19
3478 CLIP 205/187X032 18-22AWG DISCO/INS 1 8482 3/8 1D FLAT WASHER 3
3490 CLIP 250X032 14-16AWG DISCO/INSL 10 8488 3/8 INT TOOTH LOCKWASHE ZINC 3
3601 RING TERMINAL 16AWG WIRE & #8 SCREW 2 8818 3/4 OD X 3/8 ID X .080 THICK WASHER 4
3682 250 MALE PCB TAB REE
L
21 8817 #10 FLAT WASHER FOR 3/16" BOLT 4
3498 1/4" JCK PCB MT HORZ 3 3424 DPDT SLID SW PCMT H GOLD CONTACTS 1
3523 1/4" JCK PCB MT HORZ GOLD T__ 1 3436 DPDT PUSH SW PCMT H BREAK B4 MAKE 3
3921 1/4" JCK PCB MT VERT STER RT SWT 3 3522 DPDT MINI PC VERT SNP AL
T
3
6956 SPKON 4C PCB MT HORZ GRY #4 1 3554 DPDT TOGGLE SW QUICK .250" CARLING 2
3923 XLR MALE PCB MT HORZ MTHOLE-V SNA
P
1 3732 9 PIN PC MOUNT TUBE SOCKET BE 3
3451 EYELET SMALL 0.089 OD PLATED 16 3984 8 PIN PC MOUNT TUBE SOCKET BE 4
2486 1.5 AMP SLO-BLO T&R FUSE 2 4021 SPRING RETAINER FOR 6550 4
2463 T6,3A 5X20MM FUSE 1 12AU7 DUAL TRIODE PREAMP TUBE 1
3856 FAN 80MM X 80MM 39CFM 12VDC 200M
A
1 12AX7 DUAL TRIODE PREAMP TUBE 2
8542 HANDLE,RECESSED,PULL,BLACK PLASTI
C
2 6550 TETRODE OUTPUT POWER TUBE 4
8889 RUBBER GROMMET #2183-034-BLK 3 YBA1 120VAC 60HZ T'RD 1
3438 IEC PWR SOC W/.205TAB &FUSE 10A250V 1 YBA1 OUTPUT XFMR 1
3810 4" NYLON CABLE TIE 5
3827 SQUARE BUMPER BUTTON BLAC
K
1
8430 YCV40 CHICKEN-BEAK KNO
B
8
8633 ROUND PUSH BUTTON 1/4" BLACK 3
8649 BUTTON KNOB FLAT BLACK 3
3428 8' 3/18 SJT AC LINE CORD REMOVABLE 1
8264 YBA200 LOGO EMBOSSED ALUMINUM 1
3674 9 CIR CABLE HOLDER .098 1
8701 4-40 KEPS NUT ZINC 2
8800 6-32 KEPS NUT ZINC 8
8890 1/4-20 CAGE NUT C79-88142027 4
8797 5/16-18 KEPS NUT JS500 2
3796 ELASTOMER PAD TSIL 1.0X0.8 2
3850 TO-220 PLASTIC TRANSISTOR INSULATOR 2
4004 _9 CIR WAFER W/LCK VT 0.1" 1
4597 22AWG STRAN TC WIR JMP 22
4599 22AWG SOLID SC WIR T&R JMP 57

# Part# Description
Labeled Components
1 8264 YBA200/YCV LOGO EMBOSSED ALUMINUM
2 Z536 YBA200 FRONT GRILL*‡
3 3438 IEC PWR SOC W/.250TAB &FUSE 10A
4Z540 YBA200 BACK GRILL*‡
5 3450 1/4" JCK PCB MT HORZ GOLD
63424 DPDT SLID SW PCMT H GOLD CONTACTS
7 8522 RUBBER BUMPER WITH WASHER -SMALL
8 8570 CORNER, 2 LEGS NOTCHED LIP BLACK
98770 1/4-20X1 5/16 TRUSS PH MS JS5
10 Z537 YBA200 CABINET VENT PLATE
11 3498 1/4" JCK PCB MT HORZ
12 8633 ROUND PUSH BUTTON 1/4" BLACK
13 8430 YCV40 CHICKEN BEAK KNOB
14 8649 BUTTON KNOB FLAT BLACK
15 6397 JEWELED PILOT LAMP AMBER REG
16 3554 DPDT TOGGLE SW QUICK .250"
17 8521 RUBBER BUMPER WITH WASHER -VERYSMALL
18 8452 HANDLE, RESESSED, PULL, BLACK PLASTIC
19 3428 8' 3/18 SJT AC LINE CORD REMOVABLE
20 12AX7 12AX7 DUAL TRIODE PREAMP TUBE
21 12AU7 12AU7 DUAL TRIODE PREAMP TUBE
22 6550 6550 TETRODE OUTPUT POWER TUBE
23 4021 SPRING RETAINER FOR 6550
*NOTE: Replacement grills are 'Special-Order' and are only available while the model is in production.
‡ Grilles & Support replacements are for CURRENT models only.
8
9
15
19
not shown
20/21/22
13 16
17
12 14
10
12
7
6
5
4
3
8
9
5
11
18
Parts-Serv-yba200-1v0.xls ftp.yorkville.com

6550 6550
POWER
DISCONNECT POWER WHEN
REPLACING TUBES
DÉBRANCHÉ L’APPAREIL AVANT
DE REMPLACER LES LAMPES
PREAMPSPLITTER
12AX7 12AX7
V7 6550 V4 6550 V5 V6
V1V2
12AU7
V3
Block Diagram for YBA200
Scoop
Mono 1/4" Range
Preamp
V1:A
Preamp
V1:B
Preamp
V2:A
Amp InPre-Amp Out
Bal Line Out
Mono 1/4"
0dB
-6dB
Channel Inputs
Speaker Outputs
EQ
Low / Mid / High
DESIGNED AND MANUFACTU R E D B Y Y O R K V I L L E S O U N D
On / Off
Gain
Scoop
Bright
Tuner Output
Mute
Volume Preamp
V2:B
+
Power
Amp
8 ohm
4 ohm
POST-EQ
PRE-EQ
-
-20dB Pad
Ground Lift
+
-
Resonance
Mono 1/4"
Mono 1/4"
MODEL TYPE: YS1029

11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
Product
.
Date:
Filename:
PCB#
M648-5V10sch.sch2002
YBA200
Tue Jul 04, 2006
M648 ofSheet
Rev:
31
5V10
Product
.
Date:
Filename:
PCB#
M648-5V10sch.sch2002
YBA200
Tue Jul 04, 2006
M648 ofSheet
Rev:
31
5V10
P32
GND
GND
GND
+560V
+560V
-15V
GND
R3
1/4W
1M
+15V
R12
1/4W
47K
+380V +15V
1/4W
113K
R22
-BIAS
+15V
GND
GND
+267V
C66
100V10N
+380V
+267V
+15V
GND
-DRIVE
TP4
-BIAS
TP3
+DRIVE
+267V
C12
400V2N2
TP1
C40
50V 22U
TP2
3682
W14BRN
PLT
XF_PCT
C17
50V 22U
R4
1/4W
47K
C70
100V100N
R40
1/4W
47K
-15V
R26
1/4W
47K
R27
1/4W
4K7
+15V
C16
100V
100N
C1
63V
4U7
R2
1/4W
1K54
R1
1/4W
113K
LD3
MUTE
RED
5906
1/4W
68K
R112
R5
1/4W
47K
C69
63V
150N R109
1/4W
1M
R6
1/4W
750R
C55
400V
1N
50V
C64
100N
R7
1/4W
113K
LD1
OPERATE
RED
6398
R119
1/4W
47K
S8:B
R90
1/4W
4K7
C6
100V
15N
R9
1/4W
100K
R11
1/4W
62K
R16
1/4W
220K
R89
1/4W
1M
R86
1/4W
1K2
C73
100V
47N
R17
1/4W
120K
C34
100V
6N8
R50
1/4W
470K
C8
250V10N
C48
100V
220P
W27
WHT
PRE1
18AWG
R84
1/4W
113K
R85
1/4W
113K
W31
YEL
SPKR+
18AWG
S5:A
C9
250V220N
R14
1/4W
113K
R13
1/4W
1K5
R77
1/4W
820R
Q16
5104
MPSA56
TO92
R81
1/4W
249K
R106
1/4W
10K R64
1.0W
FLMP
10R
R78
1/4W
249K R105
1/4W
10K
.
R63
1.0W
FLMP
10R
XF_S2
R30
1/4W
470K
C11
100V33N
P4:A
4425
M
15A
500K
BASS
C10
63V220N
C47
400V22N
R62
5.0W
1K8
GND
C43
50V
22U
R72
1/4W
.
8K2
R66
1.0W
FLMP
10R
R107
1/4W
10K
R60
5.0W
1K8
S4:B
S4:A
-20dB PAD
3436
R19
1/4W
1M
R20
1/4W
1K
+267V
C13
400V22N
R76
1/4W
820R
R80
1/4W
249K
R67
1/4W
18K
R68
1/4W
.
18K
-78V
R79
1/4W
249K
R31
1/4W
10K
C71
100V
10N
1/4W
470K
R23
W32.
BLK
SPKR-
18AWG
3682
W16GRN
4ohm
W31.
YEL
SPKR+
18AWG
3682
W15YEL
8ohm
3682
W13BLUE
PLT
C21
50V22U
R36
1/8W
FLMP
249R
R98
1/4W
470K
C15
100V100N
W30.
GRN
GND
16AWG
3923
J5
DI OUT
S3:A
S3:B
3436
GND LIFT
W30
GRN
GND
16AWG
R97
1/4W
10K
W26
PRE2
BLK
18AWG
V1:A
Val
PreAmp
R25
1/4W
2M2
S2:B
R110
1/4W
2K
R111
1/4W
1M
R118
1/4W
3K3
R120
1/4W
470K
100V
C68
680P
R55
1.0W
470R
R95
1/4W
10K
BE
TO-92
C
BC550C
R10
1/4W
120K
R88
1/4W
1M
C35
100V
6N8
R51
1/4W
22M
R82
1/4W
200K
R83
1/4W
200K
S5:B
3436
PRE/POST
Q15
5104
MPSA56
TO92
R74
1/4W
820R
M
15A
P3:A
4423
20K
MID
R33
1/4W
470K
R73
1/4W
4K7
.
C67
250V4N7
R28
1/4W
11K
C39
50V 22U
R75
1/4W
820R
R21
1/4W
47K
3682
W17BLK
0V
3424
S7:A
4/8 Ohm
2+
2_
1+
1_
6956
J7_:A
SPEAKON 4C H
OUTPUT
IG
TO-220
O
78XX
TP5
C41
50V22U
-78V
C44
400V22N
TO92
BC550C
Q3
5101
R117
1/4W
2M2
C2
100V
10P
P1:A
4425
M
15A
500K
GAIN
C3
250V10N
6882_PC
C49
100V100N V3:B
Val
Splitter
R87
1/4W
8K2
V3:A
Val
Splitter
D21
1N5262B
0W5
51V0
LD2
STANDBY
YEL
6399
R91
1/4W
22K
C65
16V 100U
R113
1/4W
100K
C4
63V
220N S1:B
SCOOP
S1:A
SCOOP
C7
400V1N
C5
250V100N
R15
1/4W
220K
C46
400V22N
R61
5.0W
1K8
1N750ARL
D18
0W5
4V7
Q18
5104
MPSA56
TO92
3682
W12RED
B+
R71
1/4W
8K2
R70
1/4W
18K
R108
1/4W
10K
.
R69
1/4W
18K
R59
5.0W
1K8
R65
1.0W
FLMP
10R
C45
400V22N
C19
100V47P
C18
100V47P
U1:A
TL072CP
U1:B
TL072CP
8
V+
4V-
U1:C
R32
1/4W
100K
R37
1/8W
FLMP
249R
C54
63V
150N
C14
250V10N
R18
1/4W
4K7
R24
1/4W
100K
C20
50V22U
S2:A
TUNER MUTE
R114
1/4W
10K
P8:A
4425
M
15A
500K
RESONANCE
C50
100V100N
W32
.
.
18AWG
Q10
5101
TO92
BC550C
Q9
5101
TO92
BC550C
R96
1.0W
470R
BCE
TO-92
MPSA56
P2:A
4425
M
15A
500K
SCOOP
S8:A
.
R8
1/4W
82K
C42
50V22U
Q17
5104
MPSA56
TO92
V6:A
Val
Function
Val
V7:A
Function
Val
V4:A
Function
Val
V5:A
Function
P7:A
4425
M
15A
500K
VOLUME
V2:B
Val
PREAMP OUT
R35
1/4W
10K
R34
1/4W
100K
R29
1/4W
11K
ST R J8
---
OUTPUT
ST R J7
---
OUTPUT
S7:B
ST R
Gold ..
J3
AMP IN
R39
1/4W
100K
R38
1/4W
100K
I
TO-220
OG
79XX
P5:A
4424
M
1B
100K
TREBLE
P6:A
4424
M
1B
100K
RANGE
ST R
---
J2
PREAMP OUT
*Testpoints TP1 - 4 should measure between 350 - 550mV
6
4
5
1
2
3
PWR1
CH1333M
9
10
11
12
13
MODEL(S):-
DATE VER# DESCRIPTION OF CHANGE#
1
2
3
4
5
6
7
8
Updated net classes and class to class rules for hi-voltage.
Added extra breakaways
v3.01
.
4 May, 2004
.PC#6673 R120 CHANGED 470R-->470K (#4821-->4843)
PC#6672 - Apply masking to mount pins of S7
PC#6672 - Corrected colour labels on LD1 & LD2
PC#6672 - Change D20 from 20V0 to 27V0 zener (6426)
CHNGD SKRN - TUBES NOW HAVE 'V' DESIGNATION
CHNGD SKRN - EYELET # SAME ON BOTH SIDE OF WIRES
fixed heatsink and made value changes
V2.00
V2.00
V2.00
V2.00
v1.00
1.00p1
22-MAR-2004
16-MAR-2004
10-MAR-2004
9 Jan, 2004
YBA200
M648 PCB HISTORY
2nd Proto22 Sept, 2003
30-MAR-2004
19-APR-2004 V3.00 PC#6680 Add header to ribbon & tabs to ease wiring and allow
for double insulated wire on STDBY and HV from power board
to preamp. Modified STDBY switching.
REF KNOBPART#
MODEL(S):-
FUNCTION
8430
YBA200
M648
P32
N
N
N
N
K
K
K
K
P
P
P
P
F
F
F
F
R
R
R
R
P1
P2
P3
P4
P5
P6
P7
P8 RESONANCE
VOLUME
RANGE
TREBLE
BASS
MID
SCOOP
GAIN 4425
4425
4423
4425
4424
4424
4425
4425 8430
8430
8430
8430
8430
8430
8430 P32
P32
P32
P32
P32
P32
P32
TYPE
V1:B
Val
PreAmp
V2:A
Val
PREAMP OUT
RING
J1
FUNCTION
RING
J6
FUNCTION
RING
J4
FUNCTION
"STYLE_P32"
7
4
1
9
2
3
5
6
8
13
10
11
12 D
.
.
25-MAY-2004
N
all large capacitors (C32-C33, C24-C27, C52-53,
33R 5W #4704 wirewound
PC#6687 Replace D5-8 IN5408->UF5408 (HER508)
23-JUN-2006
.
20-OCT-2004
.
10-JUN-2004
07-JUN-2004
.
.
PC#7108, MOVE SILPAD UNDER 7915 INSTEAD 7815
AH, PC#7118, REMOVE ROUTE CAUSE CUTTING R68
Updated z352 - new mounting hole sizes
C38, C72, C58, C61-C62 and AC Caps C22-C23)
ETCH GUIDE. PC#6693 - Added RTV holes to
PC#6692 - Moved VCD hole 1.5" to left and bottom left
PC#6688 - Replaced 100R 5W R56 with
Removed copper pours on sockets and force updated
V
.
.
V4.00
.
V5.10
.
.
.
V4.11
V4.10
.
27-OCT-2005 V5.00 AH, PC#6894, 6897 AND 6937

11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
Product
.
Date:
Filename:
PCB#
M648-5V10sch.sch2002
YBA200
Tue Jul 04, 2006
M648 ofSheet
Rev:
32
5V10
Product
.
Date:
Filename:
PCB#
M648-5V10sch.sch2002
YBA200
Tue Jul 04, 2006
M648 ofSheet
Rev:
32
5V10
LV2
+565V
GND
+560V
HI1
-BIAS
GND
LV1
HI2
+15V
GND
V6:B
R44
1/2W
18R
120 VAC
6.3 VAC
W9GRY
LoV
W8YEL
0V
420 VAC
W5RED
HiV
HI1
W27.
PRE1
WHT
20AWG
+380V
IEC_RECT
C23
250V
4N7 W11GRN
FIL
W6RED
HiV
GND
R127
2486
T1.5
R42
1/8W
FLMP
220R0
R41
1/8W
FLMP
220R0
R126
2486
T1.5
HER508
D5
D6
HER508
HER508
D7
D8
HER508
C25
25V
470U
C26
25V
470U
C33
350v
470U R48
2.0W
150K
10MM
R49
2.0W
150K
10MM
C32
350v
470U R46
2.0W
150K
10MM
R47
2.0W
150K
10MM
4007
D25
D22
4007
4007
D23
C28
100V
100N
GND
C61
350V
22U
R104
2.0W
150K
10MM
C58
350V
22U
R103
2.0W
150K
10MM
W41
-15V
TO FAN
W40
V1:C
R43
1/2W
18R
R93
1/2W
8K2
250V
C63
220N
D15
1N5262B
51V0
D16
1N5262B
51V0 C60
250V
10N
D13
1N5262B
51V0
D11
1N5262B
51V0
D12
1N5262B
51V0
R94
1/4W
2K2
-15V GND
+15V
C56
100V
100N
-78V
1N5254B
D20
27V0
S15
DPDT Switch
C22
275V
22N
W22
GRN
GND
16AWG
8
3
4
5
6
7
9
2
1
T1
GRN
GRN
YEL
GRY
RED
GRY
RED
BLK
BLK
V4:B
C24
25V
470U
C27
25V
470U
.
.
W39
.
.
W38
D24
4007
C29
100V
100N
R101
1.0W
10K0
V2:C
C72
450V
10U
R123
1.0W
10K0
R102
1.0W
10K0
D14
1N5262B
51V0
C51
250V
220N
R45
1/2W
18R
R92
1/2W
8K2
R58
1/2W
8K2
100V
C53
330U
1N5262B
D17
51V0
PR2
16 VAC
W7GRY
LoV
D4
4007
+267V
FUSE
F1
T6, 3A SloBlo
4007
D1
W10GRN
FIL
W4BLK
PRI
W3WHT
LINE
PR1
CH1333
16 VAC 4007
D3
W1BLK
PRI
W2BLK
LINE
4007
D19
R121
1/4W
FLMP
1R
OUTIN
GND
MC7915CT
6871
U2
TO220
C30
63V
10U
OUTIN
GND
6872
U3
MC7815CT
TO220
C38
350V
22U
W26.
PRE2
20AWG
BLK
TO STANDBY
SWITCH
C57
100V
100N
D2
4007
V5:B
160V
C52
10U
C59
25V
470U
C62
350V
22U
C31
63V
10U
V7:B
V3:C
R122
1.0W
10K0
R56
5.0W
.
33R
*For 230VAC use CH1333E transformer
*Decoupling caps placed across
U1's power rails.

VCD
CLINCH
ORIGIN LONG AXIS
SHORT AXIS
INSERT
ORIGIN
M648 5V10Pcb Mech BlankSize - 16000x9375
TAB
NORMAL
SOCKET
SOCKET WITH DIRECTION
NORMAL LARGE
SOCKET UPSIDE DOWN
1
6550
V4
6550
V6
6550
V5
M648 5V10
12AX7
V1
12AX7
V2
12AU7
V3
6550
V7
Top Assy
SEE LAYOUT DOCUMENTATION
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
NOL
NCL
NOR
NCR
CL CR
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
NOL
NCL
NOR
NCR
CL CR
V
T
R
V
T
R
V
T
R
GUIDE
ETCH
7
21
+
-
GUIDE
ETCH
V
T
R
V
T
R
7
RING
TIP-SW
TIP
SLEEVE
RING-SW
RING
TIP-SW
TIP
SLEEVE
RING-SW
RING
TIP-SW
TIP
SLEEVE
RING-SW
NOL
NCL
NOR
NCR
CL CR
-2 -1
+1
+2
7
7
TUNER MUTE
.
MID SCOOP
PREAMP OUT DI OUT
..
PRE/POST
MUTE
GAIN RANGETREBLE BASS RESONANCE
OUTPUT
VOLUME
STANDBY
FUNCTION FUNCTIONFUNCTION
PREAMP OUT
SCOOP
4/8 Ohm
OUTPUT
AMP IN
OPERATE
-20dB PAD
GND LIFT
Function
PreAmp Splitter
3522
3522
4423
4004
4425
6451
5865
3923
6872 6871
3436
5882
5906
4425
5882
44244424
5882
3674
4425 4425 4425 6399
6435
3921 39213921
3984
3732
3984
3522
3424
6398
3436 3436
39843984
3732
3732
Z352
2K
47K
100N
8K2
10N
1N
2K2
220N
150N
113K
8K2 1K2
18R
1/2W
249K
100N
18K
4007
15N
82K
4K7
47N
249R
100K
51V0
10P2M2
150N
47K
1M
249K
18K
150K 2.0W 2.0W
150K
220K
113K
470K
200K
4007
22K
120K
47K
10K
100K
100K
470K 47K3K3
4007
4007
10K
18K
4007
51V0
100K
220N 4K7
10K
220P
2.0W
150K
51V0
51V0
51V0
51V0
62K
470K 100N
100K
50V
22U
100N
220R0 220R0 T1.5
4007
4007
100N
BC550C
820R
25V
470U
25V
470U
113K
4U7
63V
1M
10N 18R
1/2W
MPSA56
MPSA56
10R
1.0W
27V0
8K2
1/2W
8K2
1/2W
750R
113K
10N
330U
100V
18R
1/2W
2N2
15A
20K
63V
10U
113K
1M 1M
100N
10N
33N
10U
63V
4V7
50V
22U 8K2
18K
50V
22U
50V
22U
10U
450V
100N
1R
4007
249K
22U
350V
8K2
1/2W
51V0
51V0
15A
500K
1N
100N
249R
100N
50V
22U
50V
22U
100U
16V
100N
47K
BC550C
4N7
250V
T1.5
1M
68K
4K7
22N
400V
1K54 680P
50V
22U
50V
22U
150K 2.0W 2.0W
150K
1K5
22M
100N
820R
22N
400V
1K
113K
MPSA56
22N
400V
4K7
MPSA56
4007
200K
22N
400V
2M2
TL072CP
47P
10K
10N
10K
470R
1.0W
TO220
MC7815CT
TO220
MC7915CT
11K
47K
10K
6N8
470K
10K
820R
10K0
1.0W
10K0
1.0W
100K
470K
HER508
HER508
HER508
220N
250V
25V
470U
25V
470U
10N
10K
RED
47K
10K
15A
500K
10R
1.0W
249K
220N
250V
1M
1B
100K
1B
100K
22N
400V
6N8 220N
250V
10R
1.0W 10R
1.0W
820R
22U
350V
2.0W
150K
22U
350V
10K0
1.0W
120K
220K
15A
500K
15A
500K
47P
100K
15A
500K
4N7
470K
YEL
5.0W
1K8
275V
22N
HER508
5.0W
1K8
160V
10U
470U
350v
Val
Val
25V
470U
11K
10K0
1.0W
5.0W
1K8
22U
350V
Val
DPDT SLID
BC550C
470R
1.0W
RED
5.0W
1K8
5.0W
33R
470U
350v
Val
Val
Val
Val
5V10
5V10
M648 3/5 5V10
-
YBA200
5V10
5V10
+
R110
R26
X75
C64
R71
C60
C55
R94
X51
C10
C54
R85
R87 R86
R45
X18
R79
C28
X33
X32
R68
D25
C6
R8
.
.
.
W40
X23
R90
X22
C73
R36
X36
R38
X25
D21
C2R25
X8
X9
X5
C69
X7 R5 R111
X6
R81
R70
X56 R47
R48
R15
R14
X12
X19
X60 R23
X53
X31
X62 X44
X17
X52 X72 R82
D23
R91
R10
R12
X39
.
.
.
W41
X49
R31
X45 X46
R34
R24
X40
R98
R21R118
X55
D3
D2
R105
R69
D19
D17
X70
R113
C4
X13
X14 R18
R107
X63
C48
X29
X30
X67
R103
D11
D12
D14
D15
R11
R30 X41
C56
R39
LINE
WHT
W3
PRI
BLK
W4
YBA200
M648 4/5
C17
C70
FIL GRN W11
R42 R41
R127
D4
D1
C16
Q3 S2
R77
C24
C27
R1
C1
R109
C66
R43
Q15Q16
R63
D20
R93
16AWG
GRN GND
W22
R92
X10
R6
R7
C8
X74
S8
C53
X65
R44
C12
P3
PLT
BRN
W14
B+
RED
W12
C30
R84
R89 R88
C49
X68
X69
C14
C11
YBA200
M648 2/5
W19.
C31
X15
D18
C43
R72
R67
C39 C40
X59
C72
C29
X38
R121
D24
TP1
R80
C58
R58
D16
D13
X11
P2
X28
C7
X20
C50
X42
R37
C57
C20 C21
C65
X37
X35
0V BLK W17
8ohm YEL W15
X47
C15
GRN
GND
16AWG
W30.
R119
Q10
C23
R126 R3
R112
R27
X57
C46
R2 C68
C42C41
X54
R46
R49
X66
R13
R51
C5
R74
X58
C45
.W38
.
.
PLT
BLUE
W13
R20
R22
X64
Q17
C44
R73
Q18
D22
X16
R83
X26
-
-
-
J2
C47
X48
R117
U1
C18
R35
J5
4ohm GRN W16 C71
R95 R55
X61
U3 U2
S5
R28
X3
R4
R106
X50
C35
R50
R108
R75
R101
R102
X43
X27
X73
R9
R33
X34
LINE
BLK
W2W1
PRI
BLK
TP4
HiV RED W5
D6
D8
D7
X76
C63
LoV GRY W7
C26
C25
C3
R97
LD3
R40
X1
X2
R114
P1
X4
TP2TP3
R64
R78
TP5
YEL
18AWG
SPKR+
W31.
.W39
.
.
0V YEL W8
C51
18AWG
WHT
W27
PRE1
18AWG
BLK
W26
PRE2
R19
P6
P5
C13
C34 C9
R65 R66
R76
C61
18AWG .
W32
.
R104
C38
R122
X21
W21W19
R17
R16
P4 P8
BLK
18AWG
SPKR-
W32.
- - -
J8
C19
R32
X24
P7
C67
R120
LD2
R61
C22
FIL GRN W10
HiV RED W6
D5
GRN
GND
16AWG
W30
LoV GRY
W9
J6 J1J4
R59
C52
C33
V5
V2
C59
W27.
20AWG
PRE1
WHT
R29
R123
20AWG
BLK
PRE2
W26.
R62
C62
V7
S1
S7
J7_
W31
YEL
18AWG
SPKR+
- - -
J7
YBA200
M648 5/5
Gold
.
.
J3
Q9
R96
LD1
S4
S3
R60
R56
C32
V4V6
YBA200
M648 1/5
V1 V3
XC37

SEE LAYOUT DIAGRAM
PRODUCTION NOTES
1. BEND THE SUPPORT LEADS ON THE FOUR
POWER TUBE SOCKETS AFTER INSERTION.
2. USE SOLDER JIG FOR WAVESOLDERING.
3. WHEN REQUIRED, A #6956 SPEAKON WILL FITIN THE SPACE OF J7.
4. ENSURE R56 IS #4704 WIREWOUND.
5. MOVE SILPAD TO BE UNDER #6871 INSTEAD #6872
IOG
78XX
TO-220
GOI
79XX
TO-220
ECB
TO-92
MPSA56
P
1
4
G2
8
5
NC
HH
3
K
6
G1
2
NC
7
G3
6550WE
CEB
TO-92
BC550C
KNOBPART#FUNCTIONREF
MODEL(S):-
P32
N
N
N
N
8430
K
K
K
K
4425
P
P
P
P
RESONANCE
F
F
F
F
P8
R
R
R
R
YBA200
M648
P1
P2
P3
P4
P5
P6
P7
GAIN
SCOOP
MID
BASS
TREBLE
RANGE
VOLUME 4425
4424
4424
4425
4423
4425
4425 8430
8430
8430
8430
8430
8430
8430
TYPE
P32
P32
P32
P32
P32
P32
P32
"STYLE_P32"
2G
2K
1 9
1K
1G
4
H
6
2
3
H
8
7
2P
5
HT
1P
12AX7A
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
D
DV
V
V
V
D
D
N
N
N
N
YBA200
M648 DRILL HISTORY
25-FEB-04 V01
30-MAR-2004 V02 Extra breakaways added
20-APR-2004 V03 C31 moved, some eyelets chg. to tabs, header added to W19
.
5 May, 2004 . V3.01 Update octal sockets to ensure routed hole is sectioned.
Added copper pours to octal socket pads.
. . Added route slots to provide high-voltage clearance.
25-MAY-2004 V04 Sockets now have slots
10-JUN-2004 V06 PC#6692 AND PC#6693 SEE PCB HISTORY BOX
27-OCT-2005 PC#6894,6897 AND 6937 SEE PCB HISTORY TABLEV07
4
1
6
5
3
#
2
MODEL(S):-
PC#
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
PENDING CHANGE
X
X
X
X
X
PC
PC
PC
PC
PC
M648 PENDING CHANGES
YBA200
PC X
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
19-APR-2004 V3.00 PC#6680 Add header to ribbon & tabs to ease wiring and allow
for double insulated wire on STDBY and HV from power board
to preamp. Modified STDBY switching.
YBA200
22 Sept, 2003 1.00p1 2nd Proto
9 Jan, 2004 v1.00 fixed heatsink and made value changes
M648 PCB HISTORY
10-MAR-2004 V2.00 CHNGD SKRN - EYELET # SAME ON BOTH SIDE OF WIRES
. . CHNGD SKRN - TUBES NOW HAVE 'V' DESIGNATION
16-MAR-2004
..
V2.00 PC#6672 - Change D20 from 20V0 to 27V0 zener (6426)
PC#6672 - Corrected colour labels on LD1 & LD2
22-MAR-2004 V2.00 PC#6672 - Apply masking to mount pins of S7
30-MAR-2004 V2.00 PC#6673 R120 CHANGED 470R-->470K (#4821-->4843)
. . Added extra breakaways
4 May, 2004 v3.01 Updated net classes and class to class rules for hi-voltage.
.
.. .
3796 on this
device only. PCB
2 of 8741
Z352
2 of 3850
2 of 8701
2 of 8832
- to hold z352 in place
12
9
6
3
13
11
10
5
4
8
7
2
1
07-JUN-2004 V4.10
ETCH GUIDE. PC#6693 - Added RTV holes to
PC#6688 - Replaced 100R 5W R56 with
D
10-JUN-2004
V
V4.11
N
PC#6692 - Moved VCD hole 1.5" to left and bottom left
33R 5W #4704 wirewound
all large capacitors (C32-C33, C24-C27, C52-53,
C38, C72, C58, C61-C62 and AC Caps C22-C23)
25-MAY-2004 V4.00 PC#6687 Replace D5-8 IN5408->UF5408 (HER508)
Removed copper pours on sockets and force updated
20-OCT-2004 .
.
.
.
.
.
.
..
..
Updated z352 - new mounting hole sizes
27-OCT-2005 V5.00 AH, PC#6894, 6897 AND 6937
23-JUN-2006 V5.10 AH, PC#7118, REMOVE ROUTE CAUSE CUTTING R68
. . PC#7108, MOVE SILPAD UNDER 7915 INSTEAD 7815

NEUTRAL
LINE
R E D--SW
GREEN
YEL
RED
ORN
GRN
CH1333
CH1333M
Q 7 Q 4 Q 5 Q 6
C 32
C 33
YBA 200 NA AC WIRING
R 60
R 56
RED
BLK BRN
BLUE
RED
BLK
YEL GRN
From Pre. Amp to Pwr
Double Ins. Wires
W26 W27
BLACK WHITE DBL/INS
WIRES
YBA 200 CE -SAME AS N.A
CH1333E