Faultfinding Guide 8.2
Circuit description of the current mode power supply
8.2.1
Blockdiagram
Rectifier
Lightning Protection
CDR779
8.
GB 59
6210
5131
+5V EMI FILTER
MAINS
2 2643 6230 Start Circuit
Comp
Overvoltage Protection
+12V 5
7
Vcc
6240 9
v
2.5V
-8V
t
CLOCK Error Amplifier + -
PWM Verror comparator +
6250 7125 S R Q latch
VFTD
Output 6220 Isense
Vfb
VDC2
Vsense Rsense
CONTROL VDC1
+12V +5V
Vcc 7131
0V 7201
REGULATION
CL 06532151_018.eps 271100
Figure 8-10 8.2.2
Function description 7 VI
MOSFET 7125 is used as a power switch controlled by the controller IC 7110. When the switch is closed, energy is transferred from mains to the transformer. This energy is supplied to the load when the switch is opened. Through control of the switched-on time, the energy transferred in each cycle is regulated so that the output voltages are independent of load or input voltage variations. The controlling device UC3842 is an integrated pulse width modulator. A clock signal initiates power pulses at a fixed frequency. The termination of each output pulse occurs when a feedback signal of the inductor current reaches a threshold set by the error signal. In this way the error signal actually controls the peak inductor current on cycle-by cycle basis. 8.2.3
6V +
16V + 5 GND
2.5V
8 Vref
BIAS
4
6
Rt/ct
1
OSC 2.5V
OUTPUT
S ERROR AMP
2 Vfb
+
I SENSE COMP 2R
R
1V
+
R
1 COMP
LATCH 3
I sense
Figure B : Blockdiagram UC3842
Description of UC3842 The input voltage Vcc(pin 7) is monitored by a comparator with hysteresis, enabling the circuit at 16V and disabling the circuit below 10V. The error amplifier compares a voltage Vfb(pin 2) related to the output voltage of the power supply, with an internal 2.5V reference. The current sense comparator compares the output of the error amplifier with the switch current Isense(pin 3) of the power supply. The output of the current sense comparator resets a latch, which is set every cycle by the oscillator. The output stage is a totem pole, capable of driving a MOSFET directly
5V REF
S/R -
CL 06532151_019.eps 271100
Figure 8-11 8.2.4
Start up sequence t1: Charging the capacitor at Vcc C2129 wiil be charged via R3123 and R3134, C2133 and C2111 via R3129. The output is switched off During t1. t2: Charging of output capacitors When the input voltage of the IC exceeds 14,5V, the circuit is enabled and starts to produce output pulses. The current consumption of the circuit increases to about 17mA, depending on the external loads of the IC. At first, the
GB 60
8.
Faultfinding Guide
CDR779
capacitor at the Vcc pin will discharge because the primairy auxiliary voltage, coming from winding7-9 is below the Vcc voltage. At some moment during t2, the primary auxiliary voltages reaches the same level as Vcc. This primary auxiliary voltage now determines the Vcc voltage t3: regulation The output voltage of the power supply is in regulation t4: overload When the output is shortened, the supply voltage of the circuit will decrease and after some time drop below the lower threshold voltage. At that moment, the output will be disabled and the process of charging the Vcc capacitor starts again. If the output is still shorted at the next t2 phase, the complete start-and stop sequence will repeat. The power supply comes in a hiccup mode.
becomes reversed. This results in a current flow through the tranformer’s secondary winding via the diodes, electrolytic capacitors and the load. This current is also ramp shaped but decreasing. TimeDEAD phase : when the stored energy has been supplied to the load, the voltage from the secondary windings falls below the output voltage(held constant by the electrolytic capacitors) plus the threshold voltage of the diodes. The current in the secondary winding stops flowing. At this point, the drain voltage of the MOSFET is not yet zero because C2609 between drain and source contains a certain charge. This charge will start a sine-shaped ringing together with the transformer’s self-induction. The oscillator will start a next cyclus which consists of the described three phases. The time of the different phases depends on the mains voltage and the load. TimeDEAD is maximum at an input of 400VDC and minimum load, it will be zero at an input of 100VDC and overload.
16V Vcc
12V
V2 Vosc
10V Vc2134
V1
0V
0 Vcomp
20mA
Vsense Icc 1mA
Vgate OUTPUT
Vdrain
short
Idrain
Vo 0 t1
t2
t3
t4
Idiodes
Figure C : Start-up sequence CL 06532151_020.eps 271100
Figure 8-12 8.2.5
Regulation Figure 4 shows the most relevant signals during the regulation phase of the power supply. The oscillator voltage ramps up and down between V1 and V2. The voltage at the current sense terminal is compared every cycle with the output of the error amplifier Vcomp. The output is switched off when the current sense level exceeds the level at the output of the error amplifier. TimeON phase : A drain current will flow from the positive supply at pin 1 through the transformer’s primary winding, the MOSFET and Rsense to ground. As the positive voltage at pin 1 of the transformer is constant, the current will increase linearly and create a ramp dependent on the mains voltage and the inductance of the primary winding. A certain amount of energy is stored in the transformer in the form of a magnetic field. The polarity of the voltages at the secundary windings is such that the diodes are non-conducting. TimeDIODE phase : When the MOSFET is switched off, energy is no longer supplied to the tranformer. The inductance of the tranformer now tries to maintain the current which has been flowing through it at a constant level. The polarity of the voltage from the transformer therefore
Ton
Tdiode Tdead
CL 06532151_021.eps 271100
Figure 8-13
Faultfinding Guide 8.2.6
Oscillograms
8.2.7
Oscillograms
CH1 2 CH2 CH3 2 V~ ALT MTB5.00us- 0.90dv ch1-
PM3394B ch1
1
T
3
GB 61
Circuit description
Input circuit The input circuit consists of a lightning protection circuit and an EMI filter. The lightning protection comprises R3120, gasarrestor 1125 and R3124. The EMI filter is formed by C2120, L5120, C2125 and R3124. It prevents inflow of noise into/from the mains.
Start circuit and Vcc supply This circuit is formed by R3123, R3134, C2129, D6129, R3129, R3111, C2133 and C2111. When the power plug is connected to the mains voltage, the stabilised voltage over D6129(24V) will charge C2133 via R3129. When the voltage reaches 14,5V across C2111, the control circuit of IC7110 is turned on and the regulation starts. During regulation, Vcc of IC7110 will be supplied by the rectified voltage from winding 7-9 via L5132, D6132 and C2133.
2
ch1 : Drain voltage ch2 : Drain current ch3 : Gate voltage
PM3394B
8.
Primary rectifier/smoothing circuit The AC input is rectified by rectifier bridge 6102 and smoothed into C2121. The voltage over C2121 is approximately 300V. It can vary from 100V to 390V.
ch3 ch2
CDR779
CH1 1 CH3 50mV~ ALT MTB5.00us- 0.90dv ch1-
Control circuit The control circuit exists of IC7110, C2102, C2104, C2107, C2109, C2110, R3102, R3103, R3104, R3107, R3108, R3109 and R3110. C2102 and R3110 define the frequency of the oscillator.
ch1
Power switch circuit This circuit comprises MOSFET 7125, Rsense 3126, 3127 and 3128, R3125, C2127, L5125, R3112 and R3113. R3125 is a pull-down resistor to remove static charges from the gate of the MOSFET.
1
ch3
T
Regulation circuit The regulation circuit comprises opto-coupler 7200 which isolates the error signal from the control IC on the primary side and a reference component 7201. The TL431(7201) can be represented by two components: • a very stable and accurate reference diode • a high gain amplifier
3
ch1 : Drain voltage ch2 : Oscillator voltage
PM3394B
K
CH1 1 CH3 20mV~ ALT MTB5.00us- 0.90dv ch1-
R
ch1
2.5V
1 ch3 T
A CL 06532151_023.eps 271100
Figure 8-15 3
ch1 : Drain voltage ch3 : Sense voltage Figure 8-14
CL 06532151_022.eps 301100
TL431 will conduct from cathode to anode when the reference is higher than the internal reference voltage of about 2.5V. If the reference voltage is lower, the cathode current is almost zero. The cathode current flows through the LED of the optocoupler. The collector current of the opto-coupler flows through R3106, producing an error voltage, connected to voltage feedback pin 14 of IC7110.
Overvoltage protection circuit This circuit consist of D6114, C2114, R3115and R3116.
GB 62
8.
Faultfinding Guide
CDR779
Secondary rectifier/smoothing circuit There are 5 rectifier/smoothing circuits on the secondary side. Each voltage depends on the number of windings of the transformer. The -8V supply is regulated by voltage regulator 7249.
When the regulation circuit is interrupted due to an error in the control loop, the regulated output voltage will increase (overvoltage). This overvoltage is sensed on the primary winding 7-9. When an overvoltage longer than 2.0µs is detected, the output is disabled until Vcc is removed and then re-applied. The power supply will come in a hiccup mode as long as the error in the control loop is present.
8.2.8
On/off circuit In off mode pin 1 and pin 2 of connector 0206 are connected. The high voltage (-8V, +12V) over opto coupler 7200 forces this one to conduct . IC 7110 is switched off
Troubleshooting PSU CDR3-ECO
Faultfinding diagram
TROUBLE SHOOTING POWER SUPPLY
OK
Check DC voltages +5V +12V -8V VFTD(-38V) VDC1-VDC2(3V8)
power supply OK
NOK
Disconnect the power supply from the MAIN Board Connect a dummy load resistor 6,8 ohm 10W (min 5W) on the 5V and
OK
Check DC voltages +5V +12V -8V VFTD(-38V) VDC1-VDC2(3V8)
power supply OK check - main board - front board - modem board
NOK OK
Check the +5V
check the fault voltage path
NOK
check 6210-2210-2253-5210 OK
connect the mains inlet to a mains isolated variac
turn input voltage up and check across C2121 the voltage this voltage should be +/- 1,41 x Vin ac
NOK
check the functionality of the following components: 1120-2121-2125-2126-2127-6102-7125
YES
check the load on the secundairy output check overload circuit 6141-7141-7150
OK
is power supply ticking? NO
check Vcc on pin 7 IC7110 Vcc = 12V...... 16V
NOK
check 2121-2133-2134-3123-3134-6130-6132 replace 7110
NOK
check 2102 - 3102 replace 7110
OK
check oscillator on pin 4 IC7110 is the osc +- 30kHz working ? OK
check the voltage on the source of 7125 Vsource = 1,3V ?
YES
check 3125-3126-3127-3128 replace 7125
NO (Vsource = +- 0.8V)
Disconnect diode 6150 start variac from 0V and turn-up slowly measure the 5V output If the 5V becoming higher than 5V, the regulator circuit are damaged
5V NOK
check:3201-3202-3203-3204-3205 3206-3207-3208-7131-7201 replace 7110 check circuit around Ic7110
5V OK
After the power repaired check the 3,3V
Figure 8-16
CL 06532151_024.eps 271100
Block diagrams, Circuit diagrams and PWB’s
CDR779
5.
GB 36
PSU CDR3-ECU 6
2131
6210
2n2
SB360 2253
2213
2m2
should be YK type
5
3203 100n
2111
100n
2161
1n8
2102 330p
2109
F219
10u
3236
2252
12K 5K6
3232 3229 3233
D
3220
100u
2222
3222
1K2
UDZ-2.7B
1K2
3223
390R
VDC2
F212 VDC1
E
3202 2202
3204
22n
10K
3K3
10R 100n
F211
C
F209
10u
3221
330u
2220 3201 2201
VFTD
F210
5220
F208
Euro 2121 3122 5120 5121 9122 0101
47u Reserved UF1922P Reserved Jumper Unpolarized
WW 100u 2R7 Reserved CU15D3 Reserved Unpolarized
USA 220u Reserved Reserved CU15D3 Jumper Polarized
F
3
-8Vr
1K
G
100R
22K
F122 3109
1K 1
3102
1K
3106
4n7
2106
1K5
3150
100n
2150
6150 UDZ-4.7B
47n
2221
33R
3113
270R
F216
6
B
11
+5Vr
3205
GND
7131 CQY80NG
7
220R
RtCt
F215
8
3K3
VCC
Isense OUTPUT
7254 BC847B
F207
10u
4u7
3206
Vfb
F110
3K3
68R 7253 BC327-25
5226 +12Vr
3207
Vref
BYD33D
4u7
18
3208
4
COMP
5225
6202
BYD33D
6220
100u
10K
2133
16
7
470R
3
15K
3105
56K
3151
F
6132
3234
68R 3224
100u
3225
2250
3128
1R
3127
1R
3126 7110 UC3842A
1SS355
3103 6133 1n
2104
15K
3104
100n
2142
2u2
2141
10K
3141
10R
3142
7150 BC847B
3110
100u
2134
68R
3111
BZX84-C24
4u7 6129
2129
1SS355
22R
UDZ-20B
6141
3112
9
2
10n
22u
2234
7251 BC337-40
BYD33J
68u
6130
5250
-8V
10u
470R
OUT
10
F214
UDZ-22B
1
9
3235
6201
220u
3 GND
8
-8V F213
3K3
6250
2130
5130
BC857B 7141
7
+12V
1R5
5255 1u
1
6
+5V
F222
7252 BC857B 14
T
5
+5V
6
F221 +12V
2u2
5240 F205 F206
100u
IN
2240
2231
1m 2
BYD33D
13
2242
470p
6240
2
7249 L7908
-8Vr
11
2127
10K
3125
3230
2230 15
OUT
GND
2232
IN
A
4
5
F204
5230 F203
3
2243
100u
2121 1N4006 1N4006
6106 6107
1
BYW98-200
83R
E
3
VDC1
4
+5V
EH-B
2
VFTD
F230
10
F121
+12V
7260
6230
F111 7125 STP3NB60FP 5125
0125 HEATSINK
10K
1
VDC2
F220
C
D
0205
EH-B
3
+12Vr
5
18K
+5V
17
2
3129
0207 2
2260
2
F112
F125
12
1
F201 F202 F223 F224
5210
5131 CT283D3
F106
F108
F109
11
-8V
B
18K
+5Vr 6u8
F107
3123
10
3
T2.0A H 250V
3134
9
0208
S1NB80
6102
8
0260 HEATSINK
F105
4
7
1K
6101 1
2n2
2125 2126
4
3
3117
F104
51214 5120 3
680K
2119
V
F102 1120 F103
220n
2
2120
3120
1
33n
UF1922P4 1 2
2R7
3119
0101 HCS0528
V 2322593
3122
2128
1
F100 F101
3124 470R
CU15D3
A
6100
9122
BZX79-C15
POWER SUPPLY UNIT CDR3-ECO
5
2210
4
BZX79-C15
3
2n2
2
2
1
F217 F218 0206 1
7201 TL431CLP 2
G
EH-B
2
* : Reserved Item Number H
H
CL 06532151_013.eps 241100
1
2
3
4
5
6
7
8
9
10
11
12
0101 A2 0125 B5 0205 A12 0206 G7 0207 A11 0208 A10 0260 A7 1120 B2 2102 G4 2104 E4 2106 F3 2109 G4 2111 G5 2119 A3 2120 A3 2121 B6 2125 A5 2126 B5 2127 C6 2128 A5 2129 D3 2130 D6 2131 A7 2133 D5 2134 D5 2141 E3 2142 E4 2150 F2 2161 G5 2201 E7 2202 F7 2210 A8 2213 A9 2220 D8 2221 E7 2222 D10 2230 B8 2231 B9 2232 B9 2234 B9 2240 C8 2242 C9 2243 C9 2250 D8 2252 C11 2253 A8 2260 A10 3102 F5 3103 E5 3104 E4 3105 F4 3106 F4 3109 G4 3110 D5 3111 D4 3112 D6 3113 E5 3117 A3 3119 B3 3120 A2 3122 A4 3123 B4 3124 A4 3125 C5 3126 C6 3127 C6 3128 C6 3129 D4 3134 C4 3141 E3 3142 E2 3150 F2 3151 F3 3201 E7 3202 F8 3203 F7 3204 F8 3205 F8 3206 G8 3207 F7 3208 F7 3220 D11 3221 E10 3222 D10 3223 E9 3224 D9 3225 C9 3229 C11 3230 B8 3232 C11 3233 D11 3234 D10 3235 B10 3236 C11 5120 A4 5121 A4 5125 B6 5130 D6 5131 A6 5210 A9 5220 D11
5225 D9 5226 E9 5230 B10 5240 C9 5250 C11 5255 C7 6100 A4 6101 A5 6102 A5 6106 B4 6107 C4 6129 D4 6130 D5 6132 D6 6133 E5 6141 E2 6150 F3 6201 C10 6202 D10 6210 A8 6220 D8 6230 B8 6240 C8 6250 C8 7110 E5 7125 B6 7131 F6 7141 F3 7150 F3 7201 G7 7249 B8 7251 C10 7252 C10 7253 D9 7254 D9 7260 B9 9122 A4 F100 A2 F101 A2 F102 B2 F103 B2 F104 A5 F105 A6 F106 A6 F107 B6 F108 B4 F109 D3 F110 E5 F111 B6 F112 B6 F121 D2 F122 F3 F125 D4 F201 A9 F202 A9 F203 B10 F204 B10 F205 C9 F206 C9 F207 C11 F208 C12 F209 D11 F210 D11 F211 E10 F212 E11 F213 B12 F214 B12 F215 E7 F216 F7 F217 G7 F218 G7 F219 G7 F220 B11 F221 B11 F222 B11 F223 A9 F224 A10 F230 A10
Block diagrams, Circuit diagrams and PWB’s
CDR779
5.
GB 37
Layout PSU CDR3-ECO
POWER SUPPLY UNIT CDR3-ECO - TOP VIEW
POWER SUPPLY UNIT CDR3-ECO - BOTTOM VIEW
CL 06532151_014.eps 241100
Spare parts list 3119
Headphone board g 2100 2101 2102 2103 2104 2105
4822 126 14585 4822 124 81151 4822 126 14585 4822 124 81151 5322 126 10511 5322 126 10511
100nF 10% 50V 22µF 50V 100nF 10% 50V 22µF 50V 1nF 5% 50V 1nF 5% 50V
5322 117 11726 5322 117 11726 4822 051 20008 4822 051 20008 4822 117 11503 4822 117 11503 4822 051 20122 4822 051 20122
10Ω 5% 10Ω 5% 0Ω jumper . (0805) 0Ω jumper . (0805) 220Ω 1% 0.1W 220Ω 1% 0.1W 1k2 5% 0.1W 1k2 5% 0.1W
f 3100 3101 3102 3104 3106 3107 3108 3109
ce 7102 7103 7104
4822 209 82362 NJM4556D 4822 130 42615 BC817-40 4822 130 42615 BC817-40
PSU CDR3 ECO Miscellaneous 0025 0060 0101h 1120h 1121
4822 492 63524 4822 492 63524 4822 265 31015 4822 070 32002 4822 265 11253
FIX. TRANSISTOR FIX. TRANSISTOR HSC0528 218002.(2A) FUSE HOLDER 2P
2102 2104 2106 2109 2111 2120h 2121
2238 861 15182 5322 122 31647 5322 126 10223 5322 122 31863 4822 126 14585 4822 121 10697 8222 675 05480
2127 2128 2129 2131h 2133 2134 2141 2142 2150 2161 2201 2202 2210
4822 122 50116 4822 121 70141 4822 124 40769 4822 126 14497 4822 124 42084 4822 124 42084 4822 124 22652 4822 126 14585 4822 126 14585 4822 126 14585 4822 126 14585 5322 122 32654 2020 012 93728
2213 2220 2221 2222 2230 2234 2240 2242 2250 2252 2253 2260
4822 124 41584 4822 124 40849 4822 126 13751 4822 124 42234 4822 124 81144 4822 124 81151 4822 124 40196 4822 124 41584 4822 124 40255 4822 124 40248 2020 558 90449 4822 122 33177
50V 1N8 PM5 R 1nF 10% 63V 4.7nF 10% 63V 63V 330pF PM5 100nF 10% 50V 220nF 20% 275V EL 47µF /400V YK KC RUBYCOnF 470pF 10% 1KV 33nF 5% 400V 4.7µF 20% 100V 2.2nF 20% 250V 100µF 20% 35V 100µF 20% 35V 2.2µF 20% 50V 100nF 10% 50V 100nF 10% 50V 100nF 10% 50V 100nF 10% 50V 63V 22nF PM10 R EL YK 10V S 2200µF PM20 B 100µF 20% 10V 330µF 20% 16V 47nF 10% 63V 100µF 20% 6.3V 1000µF 16V 22µF 50V 220µF 20% 16V 100µF 20% 10V 100µF 20% 63V 10µF 20% 63V DC DE-F 1KV 4N7 P8020 A 10nF 20% 50V
g
f 3102 3103 3104 3105 3106 3109 3110 3111 3112 3113 3117h
4822 117 10354 4822 051 20339 4822 116 83933 4822 116 83933 4822 051 10102 4822 051 10102 4822 050 21003 4822 116 52199 4822 053 11229 4822 051 10102 4822 053 21684
22k 1% 0.1W 33Ω 5% 0.1W 15k 1% 0.1W 15k 1% 0.1W 1k 2% 0.25W 1k 2% 0.25W 10k 1% 0.6W 68Ω 5% 0.5W 22Ω 5% 2W 1k 2% 0.25W 680k 5% 0.5W
3123 3124 3125 3126 3127 3128 3129 3134 3141 3142 3150 3151 3201 3202 3203 3204 3205 3206 3207 3208 3221 3222 3223 3224 3225 3229 3230 3232 3233 3234 3235 4xxx 4xxx
2322 595 90023 VDR DC 1M A/423V S MAX 800V B 4822 050 21803 18k 1% 0.6W 4822 117 12181 470Ω 20% 0.5W 4822 117 10833 10k 1% 0.1W 4822 116 80176 1Ω 5% 0.5W 4822 116 80176 1Ω 5% 0.5W 4822 116 80676 1Ω5 5% 0.5W 4822 117 10833 10k 1% 0.1W 4822 050 21803 18k 1% 0.6W 4822 117 10833 10k 1% 0.1W 4822 051 20109 10Ω 5% 0.1W 4822 117 11139 1k5 1% 0.1W 4822 117 11148 56k 1% 0.1W 4822 116 52176 10Ω 5% 0.5W 4822 050 13302 3k3 1% 0.4W 4822 116 52175 100Ω 5% 0.5W 4822 117 10833 10k 1% 0.1W 4822 117 11503 220Ω 1% 0.1W 4822 051 20332 3k3 5% 0.1W 4822 051 10102 1k 2% 0.25W 4822 116 83883 470Ω 5% 0.5W 4822 051 20122 1k2 5% 0.1W 4822 051 20122 1k2 5% 0.1W 4822 117 11596 390Ω 1% 0.1W 4822 116 52199 68Ω 5% 0.5W 4822 116 52199 68Ω 5% 0.5W 4822 117 13085 5k6 1% RC12H 0.1W 0805 4822 050 21002 1k 1% 0.6W 4822 117 11383 12k 1% 0.1W 4822 051 20471 470Ω 5% 0.1W 4822 051 20332 3k3 5% 0.1W 4822 116 52269 3k3 5% 0.5W 4822 051 10008 0Ω 5% 0.25W (1206) 4822 051 20008 0Ω 5% 0.25W (0805)
b 5120 5125 5130 5131h
4822 157 11846 4822 157 11411 4822 157 51312 3128 138 38950
5210 5220
4822 157 11722 4822 157 51462
5225 5226 5230 5240
4822 157 53139 4822 157 53139 4822 157 50963 4822 157 51462
5250
4822 157 51462
5255
4822 157 51195
d 6100 6101 6102 6106 6107 6129 6130 6132 6133 6141 6150 6201 6202
4822 130 34281 4822 130 34281 4822 130 83707 4822 130 31603 4822 130 31603 5322 130 80122 4822 130 83649 4822 130 42488 4822 130 83649 4822 130 10656 4822 130 11148 9322 107 43685 9322 102 64685
6210 6220 6230 6240 6250
4822 130 83865 4822 130 42488 4822 130 11415 4822 130 42606 4822 130 32896
ce 7110 7125 7131h 7141 7150 7201 7249 7251 7252 7253 7254 7260
9322 145 88682 4822 130 11417 4822 130 91451 4822 130 60373 5322 130 60159 4822 209 81397 4822 209 82112 4822 130 41344 4822 130 60373 4822 130 41246 5322 130 60159 8222 675 06290
CDR779
10.
GB 77
CD MAINBOARD Miscellaneous 1000 1004 1006 1205 1206 1207 1208 1209 1210
2422 025 11704 CON BM H 16P F 1.00 FFC 0.3 R 2422 543 00896 RES XTL SM 8M4672 30P CX-5F R 4822 267 51454 CONN. 11P FEMALE 5322 242 73686 CST12,00MTW-TF01 4822 252 51173 19398E1(1,000A) 4822 252 51173 19398E1(1,000A) 4822 267 60409 CONN 22P FEMALE 4822 265 30987 BMT 7SR>CBL0,3-1,25 2422 025 11704 CON BM H 16P F 1.00 FFC 0.3 R
g
2100 2102 2103 2104 2105 2106 2107 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 µH 1922P4 2120 100mH z 2121 68µH 2122 SM TRANSFORMER 2123 CT283D3 2124 6.8µH 20% 7.7X9.5 2125 10µH 10% 4X9.8MM 2126 LAL04T100K 2127 4.7µH 2128 4.7µH 2130 2.2µH 2131 10µH 10% 4X9.8MM 2132 LAL04T100K 2133 10µH 10% 4X9.8MM 2134 LAL04T100K 1 µH 20% 4X9.8MM AXIAL 2135 2137 2138 2139 2140 BZX79-B15 2141 BZX79-B15 2142 SINB80 2143 1N4006 2145 1N4006 2146 BZX84-C24 2147 1SS355 2148 BYD33D 2149 1SS355 2150 UDZ20B 2151 UDZ4.7B 2152 UDZ22B 2153 DIO REG SM UDZ2.7B 2154 (RHM0) R 2155 SB360 2156 BYD33D 2157 BYV28-400/20 2158 BYD33J 2159 BYD33M 2160 2161 2162 2163 2164 UC3842A 2165 STP3NB60FP 2166 CQY80NG 2167 BC856B 2168 BC846B 2169 TL431CLPST 2170 MC7908CT 2171 BC337-40 2172 BC856B 2173 BC327-25 2174 BC846B VOLT.REG.BA12T ROHM 2175 2176
4822 126 14585 4822 126 14585 5322 122 31647 4822 126 14585 4822 124 81286 4822 126 14585 4822 124 81286 5322 122 32654 4822 126 14585 4822 126 14585 4822 126 14585 4822 126 14585 4822 126 14585 4822 126 14585 4822 124 41796 4822 126 13561 4822 126 14585 4822 126 14585 4822 124 41796 4822 126 14585 4822 126 12104 5322 122 31863 4822 126 14585 4822 124 81286 5322 122 34098 5322 122 31863 4822 124 80483 4822 126 14305 4822 126 14585 4822 124 80483 4822 126 13482 4822 126 14305 4822 124 41796 4822 126 14494 4822 126 14494 4822 126 14305 4822 126 14508 4822 126 14238 5322 122 32654 4822 126 14241 4822 126 13692 4822 126 14247 4822 126 13482 4822 124 22726 3198 016 36810 4822 126 12105 5322 124 11919 4822 126 14305 4822 122 33777 4822 124 81286 4822 126 14585 5322 124 11919 4822 126 14305 4822 122 33777 3198 017 34730 4822 126 14494 5322 124 11919 4822 122 31765 4822 126 14549 4822 126 14508 4822 122 33777 3198 017 34730 4822 126 14585 4822 126 13883 5322 126 10794 5322 126 10794 5322 126 10794 5322 126 10794 5322 126 10794 4822 126 14494 4822 124 81286 4822 122 33777
100nF 10% 50V 100nF 10% 50V 1nF 10% 63V 100nF 10% 50V 47µF 20% 16V 100nF 10% 50V 47µF 20% 16V 63V 22nF PM10 R 100nF 10% 50V 100nF 10% 50V 100nF 10% 50V 100nF 10% 50V 100nF 10% 50V 100nF 10% 50V 22µF 20% 16V 220nF 10% 16V 100nF 10% 50V 100nF 10% 50V 22µF 20% 16V 100nF 10% 50V 12nF 5% 50V 63V 330pF PM5 100nF 10% 50V 47µF 20% 16V 10nF 10% 63V 63V 330pF PM5 47µF 20% 6.3V 100nF 10% 16V 0603 100nF 10% 50V 47µF 20% 6.3V 470nF 80/20% 16V 100nF 10% 16V 0603 22µF 20% 16V 22nF 10% 25V 0603 22nF 10% 25V 0603 100nF 10% 16V 0603 180pF 5% 50V 0603 0603 50V 2N2 COL R 63V 22nF PM10 R 0603 50V 330P COL R 47pF 1% 63V 0603 50V 1N5 COL R 470nF 80/20% 16V 4.7µF 35V 0603 25V 680P COL R 50V 33nF PM5 47µF 20% 6.3V 100nF 10% 16V 0603 47pF 5% 63V 47µF 20% 16V 100nF 10% 50V 47µF 20% 6.3V 100nF 10% 16V 0603 47pF 5% 63V 0603 16V 47nF COL 22nF 10% 25V 0603 47µF 20% 6.3V 100pF 2% 63V 33nF 16V O6O3 180pF 5% 50V 0603 47pF 5% 63V 0603 16V 47nF COL 100nF 10% 50V 220pF 5% 50V 220pF 5% 63V 220pF 5% 63V 220pF 5% 63V 220pF 5% 63V 220pF 5% 63V 22nF 10% 25V 0603 47µF 20% 16V 47pF 5% 63V
Electrical diagrams and PWB’s
CDR 3rd gen.
7.
GB 40
CDR MAIN BOARD - CIRCUIT DIAGRAM 7 : POWER PART TESTPOINTS 1
2
3
4
5
6
7
8
9
10
11
12
13
14
1 5556
P12VKILL
+5VA
F800
F801
F803
47u
1
3533
D3V3 100n 2537
GND
2504
F802
2
OUT
2535
2536
IN
100n
3
1A MP
A 100K
3570
2 7535 LD1117
100R
A 1542
11.8V
BAS216
220u
2568
100u
6553 BLM21
3
11.8V
BC857B 7560
BC857B 7561
14
F804 KILL
1543
D5VS F807
3531
3560
-8VA
C
100K
KILL_OUT
5555
1A MP
BLM21
P12V
220u
F825 7549 BC847B -8VA
12VPWR
12VCP
13
F826 A-8V
F824
BLM21 2558 100u
2561 100n
10
F830
12 5551
7556 MC79L05ABD 2
3552
3
47K
6 IN
OUT
4
3
F812
8
7521-A MC34072 1
4
2556
5
G
11 7526 BC847B
22u
F491
3546 F846
F836 100R
2
12VCP
2551
F838
L-5V
GND
11.8V
100n
G
5V
10V
5.2V
2562
7522 BC857B
5.2V
F
NC 8
7 3545 6R8
1 F829 2557
12R
100n
F843
3544 47K
5V
3567 22K
L12V
-8VA
BLM21
100n 2575
12R 3541
E
F832
+9SRVPWR
OUT
2574
10K
11V
GND
F841
47u
3557
F831
7528 BC847B
3542
100K
+5VA
1K2
F842
7525 BC857B
100K F818
10n
F845
9
7558 L78M09
2555
100n
2577
5709
3555
0.7V
2n2
2502
GND_CASE
3566
12VPWR
IN
BLM21
GND_CASE
F840
F844 10K
5503
3556
BLM21 2n2
2501
11
BLM21
POWER_UP
3540 10K
8
BCP69 7527 3554
5502
5501
100n
F839
14 F828
12VPWR
7
GNDA
9 F827
2565
100n
2571
5542 BLM21
GND_CASE
10
D
F821
100n
2572
5500
2n2
2500
8
1541
+12VA
F822 F823
7
5541 BLM21
2547
VDC1 100u
VFTD
F817
2548
F816
3
100n
2
6
EH-B
3532
6
2541
F815
5
E
7562 BC847B
7563 BC847B
7524 BC847B
VDC2
1
4 F820
FROM PSU
2546
BLM21
F811
P12VKILL
1500
D
3539
10K
F
L5V
0.7V 5K6
F813
F814
3538
5 F810
5546
5K6
7520 STD17N05 2 1
47u
3536
100K
10K
3537
0.7V
F809
B
F806
7523 BC847B
C POWER_UP
F808
4
-8V during normal operation
100K
P12V
3
TO DISPLAY BOARD
3559
47u
2543
1A MP
100n 2544
D5V
5K6
F805 3562
5544
5K6
5543
B
H
F496
23.2V
6501 BAV99
2563
100n
100n
2550
2553
100n
100n
6500 BAV70W
27.5V F499
F492 2507 10u
F819
P12V
5554 F498
3550
47u
100R
FS30V
F497
27.4V
2505 10u
2506 33n
H
3547 12VCP
15K 12VCP
3548 47K
2552 1n
5
5V
I
8
F835
3553
7521-B MC34072 7
4.5V 3549
F834 100R
6 3551 3K3
4
4.6V
100R
7548 BC847B
2508
F494
2509
F493
F837
5.2V
100n
F495
17.8V
6502 BZX284-C22
100n 7529 BC857B
+5VA {POWER_UP,KILL_OUT}
6554 BAV99
4.6V
I PB CDRW MAIN-4228-CDR99 3104 123 4228
CL06532018_082.eps 010300
1500 D1 1541 D4 1542 A4 1543 B4 2500 E2 2501 F1 2502 F2 2504 A11 2505 H12 2506 H12 2507 H9 2508 I8 2509 I8 2535 B5 2536 B4 2537 B5 2541 D5 2543 B4 2544 B4 2546 C7 2547 F6 2548 D5 2550 H8 2551 G4 2552 H3 2553 H8 2555 F12 2556 G13 2557 F14 2558 F12 2561 F11 2562 H8 2563 H8 2565 D6 2568 A5 2571 D3 2572 E2 2574 E8 2575 E9 2577 F2 3531 C12 3532 C12 3533 A13 3536 C6 3537 C6 3538 C4 3539 D5 3540 E10 3541 F6 3542 E6 3544 F3 3545 G4 3546 G4 3547 H5 3548 H6 3549 I7 3550 H10 3551 I6 3552 F5 3553 I6 3554 E5 3555 E5 3556 E4 3557 F4 3559 B12 3560 B14 3562 B13 3566 E10 3567 E11 3570 A12 5500 D2 5501 E2 5502 E2 5503 E2 5541 D4 5542 D4 5543 B3 5544 B3 5546 C7 5551 F11 5554 H10 5555 D6 5556 A5 5709 F2 6500 G11 6501 G9 6502 I11 6553 A11 6554 H9 7520 C6 7521-A G4 7521-B I6 7522 H5 7523 C6 7524 C5 7525 E11 7526 G5 7527 E5 7528 F4 7529 I8 7535 A4 7548 I8 7549 F11 7556 F13 7558 E8 7560 B12 7561 B14 7562 C13 7563 C12 F491 G5 F492 H8 F493 I7 F494 I8 F495 I9 F496 H8 F497 H10 F498 H10
F499 H F800 A F801 A F802 A F803 B F804 B F805 B F806 C F807 C F808 B F809 B F810 C F811 C F812 H F813 C F814 C F815 D F816 D F817 D F818 E F819 H F820 D F821 D F822 D F823 D F824 F F825 F F826 F F827 E F828 E F829 F F830 F F831 F F832 E F834 I F835 I F836 H F837 I F838 G F839 E F840 E F841 E F842 E F843 F F844 E F845 F F846 H
Electrical diagrams and PWB’s
CDR 3rd gen.
7.
GB 52
CDR MAIN BOARD - CIRCUIT DIAGRAM 7 : POWER PART TESTPOINTS 2
3
4
5
6
POWER PART
7
8
9
10
11
12
13
14
1 5556
P12VKILL
+5VA
F800
F801
F802
2
1
D3V3
F803
47u
GND
100n 2537
OUT
2535
IN
100n
2536
1A MP
2504
7535 LD1117 3
A 3533
3570
2
100R
A 1542
11.8V
BAS216
220u
2568
100u
6553 BLM21
100K
1
BC857B 7560
3
BC857B 7561
11.8V
14
F804 KILL
1543
B
100K
3539
5K6
3531
C
100n
220u
100n 2575
2574
-8VA
12VPWR
13
F826 A-8V
F824
BLM21 2558 100u
2561 100n
10
F830
12 5551
7556 MC79L05ABD 2
3552
3
47K
6 IN
12VCP
OUT
F838 3
F812
8
7521-A MC34072 1
22u
F491
3546 F846
5V
4
5.2V
5
G
11 7526 BC847B
F836 100R
2
100n
12VCP
2551
2556
GND
11.8V
3545 6R8
L-5V
NC 8
7
G
1
4
F
F829 2557
12R
3544 47K
5V
F825 7549 BC847B
F843 L12V
-8VA
BLM21
3567 22K
100n
12R 3541
11V
F832
+9SRVPWR
10n
F831
F841
OUT
47u
+5VA
F842
3555 7528 1K2 BC847B
GND
3542
E
7525 BC857B
100K F818
2555
100n
2577
5709
0.7V F845
9
7558 L78M09 IN
3557
GND_CASE
3566
12VPWR
F844
BLM21
GND_CASE
F840
2547
5503
3540 10K
8
10K
3554
BLM21
100K
5501
2565
100u
100n
P12V BCP69 7527
POWER_UP
BLM21
7
F839
14 F828
12VPWR
GNDA
100n
2572
5542
5502
F827
11
D
F821
BLM21
10K
10
BLM21
3556
9
2
5555
1A MP
2n2
3
1541
GND_CASE
2502
8
5500
2n2
4
2571
F822 F823 2500
7
5541 BLM21
+12VA
2n2
6
F
-8VA
KILL_OUT
2548
VDC1
5
EH-B
7562 BC847B
7563 BC847B
7524 BC847B
100n
VFTD
F817
6
EH-B
F811
3532
47u
3536
100K
10K
3537 F814
2541
F816
3
2501
FROM PSU
2
5
1
2546
L5V
5K6
6
4 F820 7
F810
BLM21
VDC2
F815
1
1501
0.7V
5
F807
-8V during normal operation
P12VKILL
1500
D
F809
F813
0.7V 3538 10K
E
D5VS 5546
7523 BC847B
POWER_UP
F808
4 F806
7520 STD17N05 2 1 3
3560
P12V
C
TO DISPLAY BOARD
3559
47u
2543
1A MP
100n 2544
D5V
100K
F805 5K6
5544
3562
5543
5K6
B
10V
5.2V
2562
7522 BC857B
H
F496
23.2V
6501 BAV99
2563
100n
100n
2550
2553
100n
100n
6500 BAV70W
27.5V F499
3550
47u
100R
F492
F819
P12V
5554 F498
FS30V
F497
27.4V
2507 10u
2505 10u
2506 33n
3013 1M
H
3547 12VCP
15K 2552 1n
5
5V
I
6554 BAV99
12VCP
3548 47K
8
F835
4.5V 3549
4
7548 BC847B
2508
F495
100n
17.8V
F494
2509
F493
F834 100R
6 3551 3K3
7521-B MC34072 7
4.6V
6502 BZX284-C22
I
100n
4.6V
7529 BC857B
3104 123 4228.7 +5VA
F837
3553
5.2V
100R
CL06532018_052.eps 290200
{POWER_UP,KILL_OUT}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1500 D1 1541 D4 1542 A4 1543 B4 2500 E2 2501 F1 2502 F2 2504 A12 2505 H12 2506 H12 2507 H10 2508 I8 2509 I8 2535 B5 2536 B4 2537 B5 2541 D5 2543 B4 2544 B4 2546 C7 2547 F6 2548 D5 2550 H8 2551 G4 2552 H4 2553 H8 2555 F12 2556 G13 2557 F14 2558 F12 2561 F11 2562 H8 2563 H8 2565 D6 2568 A5 2571 D3 2572 E2 2574 E8 2575 E9 2577 F2 3013 H13 3531 C12 3532 C12 3533 A13 3536 C6 3537 C6 3538 C4 3539 D5 3540 E10 3541 F6 3542 E6 3544 F4 3545 G4 3546 G4 3547 H5 3548 H6 3549 I7 3550 H10 3551 I6 3552 F5 3553 I6 3554 E5 3555 E5 3556 E4 3557 F4 3559 B12 3560 B14 3562 B13 3566 E10 3567 E11 3570 A12 5500 D2 5501 E2 5502 E2 5503 E2 5541 D4 5542 D4 5543 B3 5544 B3 5546 C7 5551 F11 5554 H10 5555 D6 5556 A5 5709 F3 6500 G11 6501 G9 6502 I11 6553 A11 6554 H9 7520 C6 7521-A G4 7521-B I6 7522 H5 7523 C6 7524 C5 7525 E11 7526 G5 7527 E5 7528 F5 7529 I8 7535 A4 7548 I8 7549 F11 7556 F13 7558 E8 7560 B12 7561 B14 7562 C13 7563 C12 F491 G5 F492 H9 F493 I7 F494 I8 F495 I9 F496 H8 F497 H11
F498 H10 F499 H9 F800 A6 F801 A12 F802 A6 F803 B13 F804 B14 F805 B6 F806 C8 F807 C8 F808 B13 F809 B12 F810 C11 F811 C12 F812 H3 F813 C5 F814 C5 F815 D2 F816 D2 F817 D2 F818 E10 F819 H12 F820 D1 F821 D7 F822 D2 F823 D2 F824 F11 F825 F11 F826 F12 F827 E2 F828 E2 F829 F14 F830 F4 F831 F3 F832 E11 F834 I7 F835 I6 F836 H4 F837 I7 F838 G4 F839 E6 F840 E6 F841 E9 F842 E5 F843 F7 F844 E3 F845 F4 F846 H5
Electrical diagrams and PWB’s
CDR 3rd gen.
7.
GB 64
CDR MAIN BOARD - CIRCUIT DIAGRAM 7 : POWER PART TESTPOINTS 2
3
4
5
6
POWER PART
7
8
9
10
11
12
13
A
6555
6556
6557
6553
F801
BAS216
BAS216
BAS216
BAS216
11.8V
3571
2
3533
100K
D3V3
F803
47u
1
100n 2537
GND
2504
F802
2
OUT
2535
2536
IN
100n
3
1A MP
A
0R
7535 LD1117
1542
3570
100u
2568
BLM21
P12VKILL
+5VA
F800
100R
5556
BC857B 7561
11.8V
BC857B 7560
3
14
F804 KILL
1543
D5VS
L5V
100K
56K
5K6
3531
47u
100n
3539
2576
KILL_OUT
100n
F840
3566
12VPWR
220u
F825 7549 BC847B
12VPWR
12VCP
13
F826 A-8V
F824
BLM21 2558 100u
2561 100n
7556 MC79L05ABD 1 2 3
47K
6 IN
4
F838 3
F812
8
2556
5
G
11 7526 BC847B
22u
F491
3546
5V
10V
5.2V
F846
F836 100R 4
100n
12VCP
2551
7521-A MC34072 1
2
GND
11.8V
3545 6R8
L-5V
NC 8
7
G
F829
OUT
3552
2562
7522 BC857B
5.2V
H
F496
2550
2553
100n
100n
8
F835 4
3551 3K3
+5VA
7521-B MC34072 7
7548 BC847B
4.5V 3549
F834 100R
6
3104 123 4228.8
F499
3550
47u
100R
F492
F819
P12V
5554 F498
FS30V
F497 2505 10u
27.4V
2507 10u
2506 33n
3013 1M
H
6554 BAV99 2508
5
I
6500 BAV70W
27.5V
12VCP
3548 47K
5V
6501 BAV99
2563 100n
12VCP
15K 2552 1n
23.2V
100n
3547
4.6V
F494 F493
100n
F495 6502 BZX284-C22
17.8V
2509 100n
I
4.6V
7529 BC857B
F837
3553
5.2V
100R {POWER_UP,KILL_OUT}
1
2
3
4
F
2557
-8VA
10
F830
12 5551
100n
12R
10n
100n 2575
3567 22K
F843
3544 47K
5V
F832
+9SRVPWR
L12V
-8VA
BLM21
F841
OUT
2574
12R 3541
GND
E
7525 BC857B
100K F818
47u
F831
11V
7528 BC847B
2547
+5VA
F842
1K2
220u
3555
0.7V
3542
2910
IN
F845
9
7558 L78M09
2555
100n
2577
5709
3540 10K
8
F844
BLM21
GND_CASE
100n
P12V BCP69 7527 10K
5503
7
F839
3554
BLM21
2565
100u
100n
2571
5501 BLM21
12VPWR
GNDA
POWER_UP
GND_CASE
F
5542
14 F828
C
D
BLM21
3557
EH-B
BLM21
5502
F827
2501
EH-B
5555
1A MP
GND_CASE
11
3532
GNDA
7562 BC847B -8VA
7563 BC847B
F821
100K
9 10
1541
10K
3 2
2572
8
5541 BLM21
2n2
7
4
2502
5
5500
2n2
6
F822 F823 2500
6
F811
+12VA
2n2
5
5K6
+12VCD
2548
VDC1
7
1
5557 BLM21
100n
VFTD
F817
2541
F816
3
4 F820
1501
FROM PSU
2
3556
D
F807
BLM21
VDC2
F815
1
0.7V
5 F810
5546
6
7524 BC847B
P12VKILL
1500
B
F806
7520 STD17N05 2 1 3
2546
3536
100K
10K
3537
0.7V 10K
F809
-8V during normal operation
F813
F814
3538
F808
4
7523 BC847B
POWER_UP
3560
P12V
C
TO DISPLAY BOARD
3559
47u
2543
100n 2544
D5V 1A MP
100K 3563
F805 5K6
5544
3562
5543
5K6
B
E
14
1
220u
1
5
6
7
8
9
10
11
12
13
14
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