NAD T955 C User manual

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CONTENTS
FRONT PANEL/REAR PANEL VIEW3
SPECIFICATIONS4
ALIGNMENT PROCEDURE/ALIGNMENT POINTS5
WIRING DIAGRAM6
SCHEMATIC DIAGRAM7-12
PCB LAYOUT13-19
ELECTRICAL PARTS LIST20-33
EXPLODED VIEW34-36
EXPLODED VIEW PARTS LIST37
PACKING DIAGRAM38
SERVICE SAFETY PRECAUTIONS
1. Replacing the Fuses
CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE
REPLACE ONLY WITH SAME TYPE OF FUSE.
REFERENCE NO. PART NUMBER DESCRIPTION
Rear Panel
AH 20-12153-10 MDA T15AL/250V
C 20-12702-20 MDA T7AL/250V
POWER SUPPLY Board
F201---F220 20-12632-00 T6.3AL/250V
NOTE:
*AH : North American version only
*C : European version only
2. Safety-check out (North American model only)
Before returning the product to the customer, make leakage current or
resistance measurements to determine that exposed parts are acceptably
insulated from the supply circuit.
Parts marked with the symbol are critical with regard to the risk of fire and
electric shock.Replace only parts recommended by the manufacturer.
-2-

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-3-

SPECIFICATIONS
CONTINUOUS AVERAGE POWER ≥100 W (20.0 dBW)
OUTPUT INTO 8 OHMS OR 4 OHMS
(Min. power per channel, 20 Hz – 20 kHz, both
channels driven, with no more than rated
distortion)
Rated Distortion ≤0.03%
(THD 20 Hz – 20 kHz)
Clipping power ≥130 W
(maximum continuous power per channel).
IHF dynamic power
(Maximum short term power per channel)
8ohms: ≥150 W (22 dBW)
4ohms: ≥250 W (24 dBW)
2ohms: ≥330 W (25.2 dBW)
Damping factor >250
(ref. 8 ohms 50Hz)
Input Impedance R = 20KΩ
C = 380 pF
Input sensitivity (for rated output into 8 ohms) 1000mV+/-50mV
Voltage gain 29 dB
Frequency response 20 Hz – 20 kHz ±0.2 dB
- 3dB at 3 Hz/70 kHz
Signal / Noise ratio, A-weighted >102 dB ref. 1 W
Dimensions and Weights
Net Weight 21.8 kg (48.0 Ib)
Shipping Weight 25 kg (55.1 Ib)
Dimension (W×H×D) 435 ×155 ×387mm
-4-

ALIGNMENT PROCEDURE
A. DC OFFSET VOLTAGE
The DC OFFSET between OFFSET Test Point and AGND must be within 0+/-20mV.
B. IDLING CURRENT
The idling current in the output stage of the poweramp should be set to 25mA+/-5mA per
pnp-npn transistor pair( This means the mid point voltage is 4mV with down limit of 3mV
and up limit of 5mV). The alignment procedure is: At first, adjust RV103 (Marked as “Idling
Current ADJ” in the drawing below) for a voltage of 4mV +/- 1mV between Test point 1 and
2. Then preheat the unit for 5 minutes, let idling current settled and then readjust to 4mV +/-
1mV.
Pls note: Though the idling current is set as 4mV +/-1mV during the adjustment, due to the
influence of varied ambient temperature and mains voltage etc., the idling current will drift after
some time. During the normal checking of idling current in the service field, it’s acceptable as
long as the voltage is in the range of 3mV—5mV.
C. ISC SENSITIVITY
The ISC sensing voltage can allow 0mV+/-50mV. But, for the alignment process in our
factory, we tighten the limit to 0mV+/-10mV. That is to adjust Pot RV104 (as marked as
“ISC SENS ADJ” in the below drawing) to get a voltage between the “ISC SENSE TEST
POINT” and AGND to be 0mV+/-10mV.
-5-

VSS1
AGND1
AGND1
VPP1
ISC1
VSS1
AGND1
AGND1
VPP1
ACOFF1
DGND
SC
LED1
ISC1 VSS2
AGND2
AGND2
VPP2
ACOFF2
DGND
SC
LED2
ISC2 VSS3
AGND3
AGND3
VPP3
ACOFF3
DGND
SC
LED3
ISC3 VSS4
AGND4
AGND4
VPP4
ACOFF4
DGND
SC
LED4
ISC4 VSS5
AGND5
AGND5
VPP5
ACOFF5
DGND
SC
LED5
ISC5
DGND
STBY
+5.5V
SC
+5.5V
THERMAL
AC1 AC2AC2
RELAY
LED3
DGND
LED2
SC
+5.5V
STBYLED
LED1
LED5
LED4
ACOFF1
DGND
SC
LED1
VSS1
AGND1
AGND1
VPP1
ISC1
ACOFF1
DGND
SC
LED1
VSS1
AGND1
AGND1
VPP1
ISC1
ACOFF1
DGND
SC
LED1
VSS1
AGND1
AGND1
VPP1
ISC1
ACOFF1
DGND
SC
LED1
VSS1
AGND1
AGND1
VPP1
ISC1
ACOFF1
DGND
SC
LED1
STBY
DGND
+5VD
SC
LED3
DGND
LED2
SC
+5VD
STBYLED
LED1
LED5
LED4
POWERAMP BOARD
POWER SUPPLY BOARD
POWERAMP BOARD POWERAMP BOARD POWERAMP BOARD POWERAMP BOARD
STANDBY BOARD
POWER LED BOARD
FROM P3021A
FROM AC INLETFROM FUSE
FROM P202BTO CH1 P101A
TO CH2 P101A TO CH3 P101A TO CH4 P101A TO CH5 P101A
FROM P204B FROM P206B FROM P208B FROM P210B
FROM TRANSFORMER FROM TRANSFORMER FROM TRANSFORMER FROM TRANSFORMER FROM TRANSFORMER
CH1 CH2 CH3 CH4 CH5
FROM TRANSFORMER
TO P504B
FROM P212A
TRIGGER BOARD
FROM P302
FROM P302A
TO P211B
TO P701B
DISPLAY BOARD
P501BP501B
1 2
P207BP207B
1 2 4 5 3
P209BP209B
1 2 4 5 3
P101AP101A
1
2
3
4
5
6
7
8
9
P208BP208B
1
2
3
4
5
6
7
8
9
P205BP205B
1 2 4 5 3
P504BP504B
1
2
3
4
5
P213BP213B
1
2
3
4
P101AP101A
1
2
3
4
5
6
7
8
9
P302AP302A
2
3
4
1
5
6
7
8
9
P506BP506B
1
2
3
4
P701BP701B
1
2
3
P101AP101A
1
2
3
4
5
6
7
8
9
P203BP203B
1 2 4 5 3
C
GR
P502BP502B
1 2
P211BP211B
1
2
3
4
5
6
7
8
9
P204BP204B
1
2
3
4
5
6
7
8
9
P101AP101A
1
2
3
4
5
6
7
8
9
P505BP505B
1
2
P212AP212A
2 3 4 1 5
P101AP101A
1
2
3
4
5
6
7
8
9
P201BP201B
1 2 4 5 3
P301AP301A
2
3
1
P401AP401A
2
3
4
1
P210BP210B
1
2
3
4
5
6
7
8
9
P202BP202B
1
2
3
4
5
6
7
8
9
P206BP206B
1
2
3
4
5
6
7
8
9
-6-
WIRING DIAGRAM

AGND
LED
SC
ISC
VSS
OFFSET
AGND
AGND
TP3
OFFSET
TP2
TP1
ACOFF
DGND
VPP
TP3
TH2
AGND
EGND
TP1
TP2
-15VA
AGND
+15VA
TH1
TH2
TH1
-15VA
+15VA
-15VA
VCC
+15VA
VSS
+15VA
+15VA
VCC
VSS
-15VA
+15VA
-15VA
-15VA
TO CONNECTION BOARD
/1/4W
/1KV
/2W
/2W
/2W
/1W
/1KV
/1KV
/1KV
/25V
/25V
/1W
/1W
/1W
/1W
/1/4W
/1/4W
/1/4W
/1/4W
/1/4W
/1/4W
/100V
/1/4W
/1/4W
/80V
/80V
/1/2W
/1/2W
/1/4W
/1/2W
/1KV
/1/2W
/1/4W
/1/4W
/1KV
/25V
/25V
/63V
/1KV
/25V /1/2W
/1%
/1%
/25V
/63V
/1/2W
/1/2W
/1KV
/3W
/1/2W
/1/2W
/1%
/1%
/1% /1%
/1% /1%
All Polyester capacitors are 63V 5% unless noted.
All Elec. capacitors are 50V 20% unless noted.
All Resistor are 1/6W 5% RJ13 unless noted.
Idling current setting:
Adjust RV103 let voltage between TP1 and TP2:4mV±1mV
ISC sensitivity setting:
Adjust RV101 let voltage at TP3: 0mV±20mV
/1/2W
/1/2W
/10V
TEST POINT
/100V
/1W
/2W
/1/2W
/16V
/16V
/5W
/5W
/1/4W
/1/4W
/25V
/25V
/1KV
/1KV
/1/2W
/1/2W
AGND
TP1
AGND
OFFSET
TP3
TP2
bce
2SA1943
2SC5200
KSA1220
KSC2690
bce 2SA970
2SA1015
bce
2SC1815
2SC2240
MPSA42
MPSA92
bce
MPSA06
MPSA56
2SB647
2SD667
/2W /1/2W
/1W
/1%
/1%
/1%
TEST POINT
12
R133
0
R133
0
J101
RCA
J101
RCA
1
2
Q111
2SC1815
Q111
2SC1815
R108
680
R108
680
R172
100K
R172
100K
Q116
2SC2240
Q116
2SC2240
C152
N.I.
C152
N.I.
D114
1N4148
D114
1N4148
Q106
MPSA92
Q106
MPSA92
R190
2.2
R190
2.2
IC103
MC14541BD
IC103
MC14541BD
Ctc
2
Rs
3
NC
4
AR
5
MR
6
Vss
7
Vcc 14
SEL 9
Q8
MODE 10
Rtc
1
NC 11
A12
B13
R167
82
R167
82
R1K1
47K
R1K1
47K
R145
220K
R145
220K
Q127
KTB1369
Q127
KTB1369
Q132
MPSA42
Q132
MPSA42
R144
100
R144
100
L101
1uH
L101
1uH
L104
N.I.
L104
N.I.
R115
0.05
R115
0.05
Q145
2SA970
Q145
2SA970
R192
1R192 1
+
C113
1uF
+
C113
1uF
R173
1.5K
R173
1.5K
Q119
2SC1815
Q119
2SC1815
R1A6
10K
R1A6
10K
+
C117
10uF
+
C117
10uF
R135
10K
R135
10K
R1A8
100K
R1A8
100K
C161
100nF
C161
100nF
C164
100nF
C164
100nF
C144
100nF
C144
100nF
R1A0
1K
R1A0
1K
R1H8
3.9K
R1H8
3.9K
+
C111
1uF
+
C111
1uF
R123
10K
R123
10K
D132
BAV21
D132
BAV21
C154
100nF
C154
100nF
C135
470pF
C135
470pF
+
C119
1uF
+
C119
1uF
+
C143
4.7uF
+
C143
4.7uF
D117
4.7
D117
4.7
R1X6
16K
R1X6
16K
R124
470K
R124
470K
+
C122
10uF
+
C122
10uF
R136
560
R136
560
C147
N.I.
C147
N.I.
HS101
HEATSINK_1
HS101
HEATSINK_1
R1Y1
220K
R1Y1
220K
C148
470nF
C148
470nF
+
-
IC101A
TL082CD
+
-
IC101A
TL082CD
3
21
R151
22K
R151
22K
R148
22K
R148
22K
R199
1K
R199
1K
R197
300
R197
300
R156
39K
R156
39K
D127
3.3V
D127
3.3V
D101
15V
D101
15V
R1E0
100K
R1E0
100K
C159
100nF
C159
100nF
RL101
JQX-115F/024/1HS1
RL101
JQX-115F/024/1HS1
4
32
1
R1F1
910K
R1F1
910K
D124
BAV21
D124
BAV21
R1E9
1meg
R1E9
1meg
R158
220K
R158
220K
R163
N.I.
R163
N.I.
PC101
PC817A
PC101
PC817A
1 2
4 3
+
C133
47uF
+
C133
47uF
R194
0.068
R194
0.068
Q128
2SA1943
Q128
2SA1943
R1X8
33K
R1X8
33K
D122
1N4148
D122
1N4148
R1E3
47
R1E3
47
C142
22nF
C142
22nF
+
C104
220uF
+
C104
220uF
D120
1N4148
D120
1N4148
D106
2.2V
D106
2.2V
C130
68pF
C130
68pF
Q102
KSA1220
Q102
KSA1220
R1E7
36
R1E7
36
Q142
2SC1815
Q142
2SC1815
Q143
2SC1815
Q143
2SC1815
L102
100uH
L102
100uH
D121
1N4148
D121
1N4148
Q134
MPSA06
Q134
MPSA06
PC102
PC817A
PC102
PC817A
1
2
4
3
Q129
2SC5200
Q129
2SC5200
R196
2.2
R196
2.2
Q124
N.I.
Q124
N.I.
Q123
KTD2061
Q123
KTD2061
+
C112
1uF
+
C112
1uF
R101
680
R101
680
R1H6
820
R1H6
820
C132
100nF
C132
100nF
+
C103
220uF
+
C103
220uF
D128
3.3V
D128
3.3V
R159
33
R159
33
C162
N.I.
C162
N.I.
R142
1K
R142
1K
R187
N.I.
R187
N.I.
R117
9.1K
R117
9.1K
R122
10K
R122
10K
R185
18
R185
18
R1X2
2.2K
R1X2
2.2K
+
C170
10uF
+
C170
10uF
R188
N.I.
R188
N.I.
C115
220uF
C115
220uF
R160
33
R160
33
Q136
MPSA92
Q136
MPSA92
R179
10
R179
10
R168
82
R168
82
Q112
2SA970
Q112
2SA970
C140
100nF
C140
100nF
R174
1.5K
R174
1.5K
R1E8
2.2K
R1E8
2.2K
D107
BAV21
D107
BAV21
D115
1N4148
D115
1N4148
Q104
2SA970
Q104
2SA970
R119
120K
R119
120K
R164
22K
R164
22K
R112
680
R112
680
C131
N.I.
C131
N.I.
R131
10K
R131
10K
R186
18
R186
18
+
C108
47uF
+
C108
47uF
R166
10K
R166
10K
R191
1R191 1
R150
10
R150
10
R182
22
R182
22
D133
1N4148
D133
1N4148
R1K3
2.2K
R1K3
2.2K
+
-
IC102B
TL082CD
+
-
IC102B
TL082CD
5
67
84
D119
1N4148
D119
1N4148
D130
1N4148
D130
1N4148
Q118
2SA1015
Q118
2SA1015
+
C114
1uF
+
C114
1uF
D125
1N4148
D125
1N4148
R134
1K
R134
1K
IC104
TL431
IC104
TL431
2 3
1
+
C102
220uF
+
C102
220uF
C129
68pF
C129
68pF
R138
27K
R138
27K
R1H2
N.I.
R1H2
N.I.
R157
220K
R157
220K R1H5
470K
R1H5
470K
R189
2.2
R189
2.2
R1H1
10K
R1H1
10K
R178
5.6
R178
5.6
R1A4
22K
R1A4
22K
R1K4
47
R1K4
47
Q120
2SB647
Q120
2SB647
R161
82
R161
82
P102A
2.54mm2X3
P102A
2.54mm2X3
1
5
36
2
4
R1E6
1meg
R1E6
1meg
D116
1N4148
D116
1N4148
D102
1N5404
D102
1N5404
Q141
KSC2690
Q141
KSC2690
R1X4
6.8K
R1X4
6.8K
+
C151
22uF
+
C151
22uF
R1H0
22K
R1H0
22K
+
-
IC102A
TL082CD
+
-
IC102A
TL082CD 3
2
1
R1H9
22K
R1H9
22K
R171
100K
R171
100K
+
C110
47uF
+
C110
47uF
Q108
MPSA06
Q108
MPSA06
R1E1
22K
R1E1
22K
R180
10
R180
10
C157
220nF
C157
220nF
CW
RV102
0
CW
RV102
0
13
2
D111
24V
D111
24V
R127
100K
R127
100K
D136
LED
D136
LED
R1G1
100
R1G1
100
CB102
ST-22 70C L TYPE
CB102
ST-22 70C L TYPE
1 2
R139
1K
R139
1K
D126
1N4148
D126
1N4148
C138
220pF
C138
220pF
C158
100nF
C158
100nF
R195
2.2
R195
2.2
R162
82
R162
82
R1H7
220K
R1H7
220K
C155
22nF
C155
22nF
D108
6.8V
D108
6.8V
R126
100K
R126
100K
D110
24V
D110
24V
R169
82
R169
82
R155
39K
R155
39K
C123
180pF
C123
180pF
R1E5
1
R1E5
1
C105
22pF
C105
22pF
+
C109
47uF
+
C109
47uF
BP101
BINDDING POST
BP101
BINDDING POST
1
2
Q139
2SA970
Q139
2SA970
C124
470pF
C124
470pF
Q105
MPSA92
Q105
MPSA92
R141
1K
R141
1K
R109
680
R109
680
Q131
2SC5200
Q131
2SC5200
Q110
2SA1015
Q110
2SA1015
C145
10nF
C145
10nF
R137
27K
R137
27K
R1X3
2.2K
R1X3
2.2K
R1A1
15K
R1A1
15K
C165
100nF
C165
100nF
R1A5
22K
R1A5
22K R1H3
3.3K
R1H3
3.3K
C121
100nF
C121
100nF
P101A
MOLEX 41662
P101A
MOLEX 41662
1
2
3
4
5
6
7
8
9
R1E4
2.7
R1E4
2.7
+
C107
47uF
+
C107
47uF
D103
1N4148
D103
1N4148
P104A
3PIN2.54-C
P104A
3PIN2.54-C
1
2
3
R175
330
R175
330
R1A3
4.7K
R1A3
4.7K
R1E2
1K
R1E2
1K
Q107
MPSA06
Q107
MPSA06
L103
N.I.
L103
N.I.
R1X1
1.8K
R1X1
1.8K
R102
680
R102
680
D112
2.7V
D112
2.7V
R165
Short
R165
Short
+
-
IC101B
TL082CD
+
-
IC101B
TL082CD
5
6
7
84
R193
0.068
R193
0.068
D129
1N4148
D129
1N4148
Q137
MPSA56
Q137
MPSA56
Q126
KTD2061
Q126
KTD2061
R1A7
100K
R1A7
100K
Q114
2SC2240
Q114
2SC2240
+
C134
47uF
+
C134
47uF
R104
33
R104
33
R1H4
1.5K
R1H4
1.5K
R198
1K
R198
1K
D104
1N4148
D104
1N4148
Q144
2SA1015
Q144
2SA1015
R111
680
R111
680
R125
390K
R125
390K
Q101
KSC2690
Q101
KSC2690
CB101
ST-22 75C L TYPE
CB101
ST-22 75C L TYPE
12
D109
1N4148
D109
1N4148
Q130
2SA1943
Q130
2SA1943
Q117
2SA970
Q117
2SA970
R140
1K
R140
1K
+
C101
220uF
+
C101
220uF
R143
100
R143
100
D135
1N4148
D135
1N4148
R1K2
100K
R1K2
100K
C137
220pF
C137
220pF
Q140
2SC1815
Q140
2SC1815
R146
470
R146
470
+
C146
Short
+
C146
Short
Q122
KTB1369
Q122
KTB1369
+
C125
150uF
+
C125
150uF R1A9
47K
R1A9
47K
C153
100nF
C153
100nF
R1K5
47
R1K5
47
R147
100
R147
100
Q125
N.I.
Q125
N.I.
+
C171
10uF
+
C171
10uF
D118
4.7
D118
4.7
Q146
2SC2240
Q146
2SC2240
Q138
2SC2240
Q138
2SC2240
R103
33
R103
33
+
C127
10uF
+
C127
10uF
R114
4.3K
R114
4.3K
D131
15V
D131
15V
R105
680
R105
680
R121
220K
R121
220K
C163
N.I.
C163
N.I.
CW
RV103
100
CW
RV103
100
1 3
2
C141
N.I.
C141
N.I.
+
C139
4.7uF
+
C139
4.7uF
+
C150
22uF
+
C150
22uF
R181
430
R181
430
Q103
2SC2240
Q103
2SC2240
CW
RV101
100K
CW
RV101
100K
13
2
R154
100
R154
100
R120
220K
R120
220K
R130
10K
R130
10K
D105
BAV21
D105
BAV21
R132
0
R132
0
R118
470K
R118
470K
C106
22pF
C106
22pF
R183
15
R183
15
R128
220K
R128
220K
R1X7
10K
R1X7
10K
+
C126
150uF
+
C126
150uF
R152
22K
R152
22K
R129
220K
R129
220K
R153
100
R153
100
P103A
Ground Solder Tap
P103A
Ground Solder Tap
1
R184
15
R184
15
R110
680
R110
680
+
C128
10uF
+
C128
10uF
Q115
2SA970
Q115
2SA970
C160
100nF
C160
100nF
R170
82
R170
82
D123
24V
D123
24V
R107
680
R107
680
Q113
2SC2240
Q113
2SC2240
D134
LED
D134
LED
C1G1
100nF
C1G1
100nF
R1A2
15K
R1A2
15K
C149
470nF
C149
470nF
Q121
2SD667
Q121
2SD667
R106
680
R106
680
P105A
2PIN2.54-C
P105A
2PIN2.54-C
1
2
R116
100
R116
100
R176
330
R176
330
R177
5.6
R177
5.6
D113
1N4148
D113
1N4148
Q147
MPSA42
Q147
MPSA42
+
C118
10uF
+
C118
10uF
C156
1nF
C156
1nF
Q133
MPSA92
Q133
MPSA92
Q135
MPSA56
Q135
MPSA56
R149
10
R149
10
+
C120
1uF
+
C120
1uF
R1X5
1K
R1X5
1K
R113
4.7K
R113
4.7K
C136
470pF
C136
470pF
-7-
SCHEMATICS DIAGRAM

ISC1
V-1
AGND1
AGND1
V+1
ACOFF1
DGND
SC
LED1
ISC2
V-2
AGND2
AGND2
V+2
ACOFF2
DGND
SC
LED2
ISC3
V-3
AGND3
AGND3
V+3
ACOFF3
DGND
SC
LED3
ISC4
V-4
AGND4
AGND4
V+4
ACOFF4
DGND
SC
LED4
ISC5
V-5
AGND5
AGND5
V+5
ACOFF5
DGND
SC
LED5
AC2AC2
AC1
+5.5V
SC
+5.5V
STBYLED
LED1
LED5
LED4
LED3
LED2
STBYLED
STBY
DGND
DGNDDGND
STBY
+5.5V
SC
RELAY
THERMAL
/100V
/100V
/250V
/100V
/100V
/250V
/1/4W
/1/4W /100V
/80V
/80V
/100V
/100V
/250V
/100V
/100V
/250V
/1/4W
/1/4W /100V
/80V
/80V
/100V
/100V
/250V
/100V
/100V
/250V
/1/4W
/1/4W /100V
/80V
/80V
/100V
/100V
/250V
/100V
/100V
/250V
/1/4W
/1/4W /100V
/80V
/80V
/100V
/100V
/250V
/100V
/100V
/250V
/1/4W
/1/4W /100V
/80V
/80V
/25V
FROM MAIN TRANSFORMERFROM MAIN TRANSFORMERFROM MAIN TRANSFORMER
FROM MAIN TRANSFORMER
FROM MAIN TRANSFORMER
TO DISSPLAY BOARD
TO STANDBY BOARD
FROM TRIG BOARD
TO POWERAMP MODULE1TO POWERAMP MODULE2TO POWERAMP MODULE3TO POWERAMP MODULE4
TO POWERAMP MODULE5
FOR BR201,BR205,TH202&TH205
FOR BR202&TH202
FOR BR203&TH203
FOR BR204&TH204
FOR BR205&TH205
FOR BR210&TH210
FOR BR207&TH207
FOR IC201
All Polyester capacitors are 63V unless noted.
All Elec. capacitors are 50V unless noted.
All Resistor are 1/6W RJ13 unless noted.
/250V
123
BT151
LM7806
/100V /100V
/100V
FOR BR202,BR206,TH201&TH206
FOR BR208,BR209,TH208&TH209
+
C240
6800uF
+
C240
6800uF
R207
1K
R207
1K
P203B
5PIN3.96-C
P203B
5PIN3.96-C
1
2
4
5
3
R228
100
R228
100
HS205
70-004003-1
HS205
70-004003-1
Q219
MPSA92
Q219
MPSA92
R241
1K
R241
1K
+
C203
10uF
+
C203
10uF
P204B
MOLEX 2145
P204B
MOLEX 2145
2
3
4
5
6
7
8
9
1
R244
22K
R244
22K
R231
22K
R231
22K
R250
1K
R250
1K
R208
1K
R208
1K
Q210
2SA1015
Q210
2SA1015
R243
22K
R243
22K
R214
1K
R214
1K
P213B
4PIN2.54-C
P213B
4PIN2.54-C
1
2
3
4
R238
1K
R238
1K
+
C216
10uF
+
C216
10uF
+
C220
6800uF
+
C220
6800uF
Q207
MPSA92
Q207
MPSA92
R267
470
R267
470
F212
T6.3AL/250V
F212
T6.3AL/250V
Q202
2SA1015
Q202
2SA1015
R225
10K
R225
10K
TH203
BT151-500R
TH203
BT151-500R
3
1 2
+
C209
6800uF
+
C209
6800uF
~
~
+-
BR206
KBU8D
~
~
+-
BR206
KBU8D
R253
1K
R253
1K
R218
100
R218
100
F206
T6.3AL/250V
F206
T6.3AL/250V
F202
T6.3AL/250V
F202
T6.3AL/250V
+
C247
10uF
+
C247
10uF
+
C213
6800uF
+
C213
6800uF
+
C229
6800uF
+
C229
6800uF
F204
T6.3AL/250V
F204
T6.3AL/250V
TH209
BT151X-500R
TH209
BT151X-500R
3
1 2
F216
T6.3AL/250V
F216
T6.3AL/250V
Q205
2SC1815
Q205
2SC1815
C224
10nF
C224
10nF
R237
10K
R237
10K
Q204
MPSA42
Q204
MPSA42
R234
15K
R234
15K
F218
T6.3AL/250V
F218
T6.3AL/250V
Q216
MPSA42
Q216
MPSA42
+
C218
10uF
+
C218
10uF
+
C238
6800uF
+
C238
6800uF
Q217
2SC1815
Q217
2SC1815
HS206
70-062007-0
HS206
70-062007-0
Q221
2SC1815
Q221
2SC1815
F211
T6.3AL/250V
F211
T6.3AL/250V
+
C250
2200uF
+
C250
2200uF
C233
10nF
C233
10nF
R230
100
R230
100
P201B
5PIN3.96-C
P201B
5PIN3.96-C
1
2
4
5
3
C207
100nF
C207
100nF
F220
T6.3AL/250V
F220
T6.3AL/250V
Q212
MPSA42
Q212
MPSA42
~
~
+-
BR211
DB104G
~
~
+-
BR211
DB104G
R246
15K
R246
15K
R211
1K
R211
1K
+
C225
10uF
+
C225
10uF
+
C245
10uF
+
C245
10uF
+
C227
10uF
+
C227
10uF
F215
T6.3AL/250V
F215
T6.3AL/250V
P207B
5PIN3.96-C
P207B
5PIN3.96-C
1
2
4
5
3
IC201
LM7806CT
IC201
LM7806CT
O
3I1
G
2
Q211
MPSA92
Q211
MPSA92
TH201
BT151X-500R
TH201
BT151X-500R
3
12
F208
T6.3AL/250V
F208
T6.3AL/250V
R205
22K
R205
22K
R216
100
R216
100
+
C222
6800uF
+
C222
6800uF
HS203
70-004003-1
HS203
70-004003-1
+
C211
6800uF
+
C211
6800uF
F203
T6.3AL/250V
F203
T6.3AL/250V
R249
10K
R249
10K
R266
100K
R266
100K
P209B
5PIN3.96-C
P209B
5PIN3.96-C
1
2
4
5
3
+
C234
10uF
+
C234
10uF
Q215
MPSA92
Q215
MPSA92
+
C236
10uF
+
C236
10uF
HS204
70-004003-1
HS204
70-004003-1
C215
10nF
C215
10nF
Q214
2SA1015
Q214
2SA1015
C201
10nF
C201
10nF
R217
1K
R217
1K
R252
100
R252
100
+
C231
6800uF
+
C231
6800uF
R254
100
R254
100
F219
T6.3AL/250V
F219
T6.3AL/250V
C206
100nF
C206
100nF
Q201
2SC1815
Q201
2SC1815
R248
4.7K
R248
4.7K
+
C226
10uF
+
C226
10uF
R227
1K
R227
1K
C242
10nF
C242
10nF
C212
100nF
C212
100nF
HS201
70-062007-0
HS201
70-062007-0
C248
100nF
C248
100nF
Q222
2SD667
Q222
2SD667
+
C205
10uF
+
C205
10uF
F207
T6.3AL/250V
F207
T6.3AL/250V
R203
1K
R203
1K
R236
4.7K
R236
4.7K
Q218
2SA1015
Q218
2SA1015
+
C235
10uF
+
C235
10uF
R224
4.7K
R224
4.7K
R210
1K
R210
1K
C239
100nF
C239
100nF
HS202
70-062007-0
HS202
70-062007-0
D205
1N4007
D205
1N4007
Q206
2SA1015
Q206
2SA1015
+
C208
6800uF
+
C208
6800uF
P202B
MOLEX 2145
P202B
MOLEX 2145
2
3
4
5
6
7
8
9
1
~
~
+-
BR203
KBU8D
~
~
+-
BR203
KBU8D
+
C244
10uF
+
C244
10uF
Q208
MPSA42
Q208
MPSA42
P208B
MOLEX 2145
P208B
MOLEX 2145
2
3
4
5
6
7
8
9
1
R239
1K
R239
1K
R257
1K
R257
1K
R212
100
R212
100
R219
22K
R219
22K
R256
22K
R256
22K
F201
T6.3AL/250V
F201
T6.3AL/250V
R265
1K
R265
1K
~
~
+-
BR207
KBU8D
~
~
+-
BR207
KBU8D
~
~
+-
BR201
KBU8D
~
~
+-
BR201
KBU8D
D202
1N4007
D202
1N4007
Q220
MPSA42
Q220
MPSA42
TH210
BT151-500R
TH210
BT151-500R
3
12
+
C217
10uF
+
C217
10uF
R260
4.7K
R260
4.7K
R206
22K
R206
22K
R258
15K
R258
15K
HS208
70-004003-1
HS208
70-004003-1
C202
10nF
C202
10nF
R255
22K
R255
22K
C230
100nF
C230
100nF
TH204
BT151-500R
TH204
BT151-500R
3
12
C214
10nF
C214
10nF
+
C204
10uF
+
C204
10uF
C232
10nF
C232
10nF
R201
4.7K
R201
4.7K
P211B
9PIN2.54-C
P211B
9PIN2.54-C
1
2
3
4
5
6
7
8
9
R213
10K
R213
10K
C219
100nF
C219
100nF
F210
T6.3AL/250V
F210
T6.3AL/250V
R221
1K
R221
1K
~
~
+-
BR209
KBU8D
~
~
+-
BR209
KBU8D
D203
1N4007
D203
1N4007
R204
10K
R204
10K
C221
100nF
C221
100nF
C237
100nF
C237
100nF
P212A
5PIN2.54-A150B
P212A
5PIN2.54-A150B
2
3
4
1
5
Q203
MPSA92
Q203
MPSA92
~
~
+-
BR204
KBU8D
~
~
+-
BR204
KBU8D
~
~
+-
BR205
KBU8D
~
~
+-
BR205
KBU8D P206B
MOLEX 2145
P206B
MOLEX 2145
2
3
4
5
6
7
8
9
1
C246
10nF
C246
10nF
R209
100
R209
100
R233
1K
R233
1K
C228
100nF
C228
100nF
F214
T6.3AL/250V
F214
T6.3AL/250V
R220
22K
R220
22K
R259
1K
R259
1K
D204
1N4007
D204
1N4007
F213
T6.3AL/250V
F213
T6.3AL/250V
D201
1N4007
D201
1N4007
C249
100nF
C249
100nF
C241
10nF
C241
10nF
TH206
BT151X-500R
TH206
BT151X-500R
3
12
C210
100nF
C210
100nF
~
~
+-
BR208
KBU8D
~
~
+-
BR208
KBU8D
R242
100
R242
100
F205
T6.3AL/250V
F205
T6.3AL/250V
~
~
+-
BR202
KBU8D
~
~
+-
BR202
KBU8D
TH207
BT151-500R
TH207
BT151-500R
3
1 2
R232
22K
R232
22K
C223
10nF
C223
10nF
R251
1K
R251
1K
HS207
70-004003-1
HS207
70-004003-1
R222
15K
R222
15K
R226
1K
R226
1K
TH208
BT151X-500R
TH208
BT151X-500R
3
12
F209
T6.3AL/250V
F209
T6.3AL/250V
R235
1K
R235
1K
Q213
2SC1815
Q213
2SC1815
R240
100
R240
100
R202
15K
R202
15K
P205B
5PIN3.96-C
P205B
5PIN3.96-C
1
2
4
5
3
TH205
BT151X-500R
TH205
BT151X-500R
3
1 2
P210B
MOLEX 2145
P210B
MOLEX 2145
2
3
4
5
6
7
8
9
1
R229
1K
R229
1K
F217
T6.3AL/250V
F217
T6.3AL/250V
R245
1K
R245
1K
TH202
BT151X-500R
TH202
BT151X-500R
3
1 2
Q209
2SC1815
Q209
2SC1815
R215
1K
R215
1K
~
~
+-
BR210
KBU8D
~
~
+-
BR210
KBU8D
R223
1K
R223
1K
+
C243
10uF
+
C243
10uF
R247
1K
R247
1K
-8-
SCHEMATICS DIAGRAM

SC
LED3
DGND
LED2
SC
+5VD
STBYLED
LED1
LED5
LED4
+5V
+5V
LED1
DGND
+5VD
DGND
LED2 +5V LED3 +5V LED4 +5V LED5 +5V
STBYLED
+5V
DGND DGND DGND STBYLED
DGND
STBYLED
GREEN
+5VD
All Polyester capacitors are 63V unless noted.
All Elec. capacitors are 50V unless noted.
All Resistor are 1/6W RJ13 unless noted.
ece b
2SC1815
SC-43 SC-43
2N4401
2N4403
cb
GND
IN
SC-72
DTA114ESA
DTC114ESA
OUT
RG
L57EGW
FROM POWER
SUPPLY BOARD
POWER LED BOARD
/16V /16V /16V /16V
Optional
R313
150
R313
150
Q304
DTC114ESA
Q304
DTC114ESA
R327
1K
R327
1K
D701
BL-BJLB4204
D701
BL-BJLB4204
C
GR
Q307
2SA1015
Q307
2SA1015
D301
BL-BUBB4274
D301
BL-BUBB4274
Q311
2SA1015
Q311
2SA1015
Q316
DTC114ESA
Q316
DTC114ESA
R304
150
R304
150
R323
1K
R323
1K
R307
150
R307
150
P302A
9PIN2.54-A240B
P302A
9PIN2.54-A240B
2
3
4
1
5
6
7
8
9
+
C304
33uF
+
C304
33uF
Q314
2N4401
Q314
2N4401
R311
150
R311
150
D308
1N4148
D308
1N4148
Q303
2SA1015
Q303
2SA1015
+
C303
33uF
+
C303
33uF
D306
BL-BUBB4274
D306
BL-BUBB4274
R326
1K
R326
1K
D302
BL-BUBB4274
D302
BL-BUBB4274
R317
150
R317
150
D305
BL-BUBB4274
D305
BL-BUBB4274
R324
1K
R324
1K Q306
DTC114ESA
Q306
DTC114ESA
R319
1K
R319
1K
R314
150
R314
150
Q302
DTC114ESA
Q302
DTC114ESA
+
C302
33uF
+
C302
33uF
Q305
2SA1015
Q305
2SA1015
P701A
3P2.54-C
P701A
3P2.54-C
1
2
3
D303
BL-BUBB4274
D303
BL-BUBB4274
Q312
DTC114ESA
Q312
DTC114ESA
Q309
2SA1015
Q309
2SA1015
Q315
2N4403
Q315
2N4403
+
C301
100uF
+
C301
100uF
R308
150
R308
150
R306
1K
R306
1K
R303
1K
R303
1K
D304
BL-BUBB4274
D304
BL-BUBB4274
Q308
DTC114ESA
Q308
DTC114ESA Q310
DTC114ESA
Q310
DTC114ESA
P301A
3PIN2.54-A130B
P301A
3PIN2.54-A130B
2
3
1
R328
1K
R328
1K
Q313
2SC1815
Q313
2SC1815
R310
150
R310
150 R316 150
R316
150
R309
1K
R309
1K
R312
1K
R312
1K
R325
1K
R325
1K
R305
150
R305
150
R315
1K
R315
1K
R302
150
R302
150
Q301
2SC1815
Q301
2SC1815
R322
2.2K
R322
2.2K
R301
10K
R301
10K
R321
2.2K
R321
2.2K
R318
1K
R318
1K
-9-
SCHEMATICS DIAGRAM

REAR PANNEL
7V
0V
NEUTRAL
LIVE
F1 (user accessible fuse)
T955 120V/230V TABLE
W501&W504
230V120V
NO INSERT INSERT
T15AL/250V T7AL/250V
W502,W503&W505 NO INSERTINSERT
POWER SWITCH BOARD FROM POWER SUPPLY BOARD
FROM MAIN TRANSFORMER
TO MAIN TRANSFORMER
/275VAC
TV-8 RATING
P3
P4
P1
P2
W1
14-97301-01
W1
14-97301-01
S601
SW SPST
S601
SW SPST
12
t
TR501
TD050-E103P
t
TR501
TD050-E103P
1
5
10
6
2
W3
14-97301-03
W3
14-97301-03
C501
220nF
C501
220nF
W501
10mm JUMPER
W501
10mm JUMPER
1 2
D501
1N4148
D501
1N4148
P502B
KY250
P502B
KY250
1
2
P501B
PCFS2508
P501B
PCFS2508
1
2
W503
7.5mm JUMPER
W503
7.5mm JUMPER
12
RL501
832A-1A-C-BH DC5V
RL501
832A-1A-C-BH DC5V
3
41
2
U1
AC INLET
U1
AC INLET
P504B
5PIN2.54-C
P504B
5PIN2.54-C
1
2
3
4
5
P505B
2PIN3.96-C
P505B
2PIN3.96-C
1
2
W502
15mm JUMPER
W502
15mm JUMPER
1 2
W504
10mm JUMPER
W504
10mm JUMPER
12
W505
7.5mm UMPER
W505
7.5mm UMPER
12
F1
FUSE HOLDER
F1
FUSE HOLDER
P506B
MOLEX 43160-2104
P506B
MOLEX 43160-2104
1
2
3
4
W4
14-97301-00
W4
14-97301-00
W2
14-97301-02
W2
14-97301-02
-10-
SCHEMATICS DIAGRAM