6.
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Supply
SUPPLY PART A
A2
STANDBY
SA2
CONNECTIONS
SA1
MAINS STANDBY PART A
A1
SUPPLY 32"
6807
GBJ6J
-
+
7001
MC34067P
15
7017
7018
7007
HIGH
SIDE
DRIVE
7004
7009
5001
BIAS SUPPLY
SOFT
START
+
CURRENT
PROTECTION
CONTROL
VCC
OSCC
ERROR
SOST
OB
OA
FI
2
4
11
7
1
14
12
10
7005
STP15NK50ZFP
6
7
5
3
7
8
9
10
11
12
13
5002
7008
LOW
SIDE
DRIVE
7006
STP15NK50ZFP
10
9
3007
7010
TS2431AI
VS Voltage
Adj.
+12V_A
+12V_+24V
5401
5402
2
3
MAINS
FILTER
1
4
6506
DF06M
-
+
1450
OVER
VOLTAGE
PROTECTION
400V_HOT
25V_HOT
14
15
16
HOT COLD
HOT
COLD
HOT
COLD
MAINS INPUT
HOT
COLD
CONTROL
7501
TCET1102
2
1
4
3
+5V2-RELAY-IO2_PWM
7100
7101
7105
7150
TCET1102
2
1
4
7511
7131
VTUN
+11V
+8V6
+5V2
+5V_SW
7531
+12V
STANDBY
7507
7506
7512
STANDBY
OVERVOLTAGE
PROTECTION
3
7102
+5V2
STANDBY: LOW = ON
HIGH = STBY
3V MAX
1V MAX STBY
2021
2022
CONTROL
7505/7509/7560/
Prot-OVV
+12V_A
DC_PROT
PROT-OVV
F_15500_042.eps
290705
VREF
5
TO
DISPLAY
AL
TO 1M10
AMBI LIGHT
7002
TCET1102
2
1
4
3
2
1308
1
1400
F4A
1401
T1A
2503
3810
6155
RES
6154
RES
2816
1305
1
1
1305
2
2
3
3
1306
1
1
1306
2
2
1307
1
1
1307
2
2
3
3
4
4
3000
6080
6078
2003
5040
3022
3052
3026
3030
1304
4
4
1304
3
3
2
2
1
1
3057
+12V
+24V
3025
6504
6140
3509
5110
5507
5103
6107
6122
3158
PROT_AUDIOSUPPLY
2512
5506
2513
3128
3113
3124
2141
5504
5505
5104
5105
3108
3127
3104
3150
3101
3155
6151
6150
3156
6153
3157
6156
1316
1
2
3
4
5
1M10
1
2
1M03
9
1M46
3
4
5
7
8
6077
5010
5017
3028
5007
5008
5009
3100
11
9
6
1317
1
2
3
4
5
6044
STPS20L45CT
1
2
3
6045
1
2
3
5027
5028
5025
5026
6021
STPS20H100CT
1
2
3
6025
1
2
3
1M02
7
6
4
1007
T5A
2291
6291
2293
6293
5293
5291
5292
5
3
2
1
VSND_POS
VSND_NEG
GND_SND
DC_PROT
SA3
TO 1M02
AUDIO
TO
DISPLAY
3101
RES
7030
3031
5
2
+5V_SW
POR
3534
3539
SA1
SA2
B21
TO 1M03
CONNECTIONS
B21
TO 1M46
CONNECTIONS
3
5500
6
7
10
8
5
2
1
9814
5004
2815
www.freeservicemanuals.info
17/6/2013
World of free manuals