Components -
Details of the components are given below. See the Where to buy and Component Pin-
Fuses
There are three fuses inside the subwoofer. They are Wickmann fuses (may now be called Littelfuse or Littelfuse Wickmann as Littelfuse has taken over Wickmann) and are soldered to the PCB.
If replacing any of the fuses, they must be replaced by a fuse of the same type and rating:
Relay PCB
F650:
T3.15A /250v type 382 fuse
Littelfuse part number: 38213150410
Farnell order code: 171-
RS stock no. 377-
Amplifier PCB
F400 and F401:
T5A / 250v type 382 fuse
Littelfuse part number: 38215000410
Farnell order code: 171-
RS stock no. 377-
The last four digits of the Littelfuse part number (0410) simple refers to the packaging. These can be supplied individually with stockists referring to the code as 0410 or 0430 (the end zero may be omitted). The actual fuse is exactly the same, whatever the code is.
Note -
Replacement LEDs
The SMD LEDs are made by Avago. I assume that the wallwasher LEDs are also made by them.
I have tried various LEDs for suitability as a replacement. This includes all the
Avago LEDs that I can find in the same colour range. I have not replaced the LED
on a PCB to test it, instead I have compared the existing PCB LED with the LED I’ve
been testing by using the LED diode tester test -
The test was carried out using two identical diode testers at the same time -
It may be difficult to get an exacting matching replacement LED. Not all LEDs are
the same and vary according to brightness, colour shade and view angle (the spread
of the light -
The results below will give you an idea of the nearest LED you could use. There may be other LEDs available, from the same or a different maker that are suitable. If the LED isn’t an exact match, most of the time it will not matter. The only time it will be noticeable is when two lights are together (as in the wallwasher) or two sidelights are together and the colour and brightness of the lights is steady. It may be possible to make up any slight change in colour or brightness by calibrating the light, but personally I wouldn’t bother. Calibrating can be a lot of fiddling around and there’s no guarantee that what you end up with is any improvement and you may make it worse. Look up detailed information on each LED on the data sheets that are available from the supplier or from the manufacturers web site.
I have given the mcd of the LED as listed on the supplier’s page, but there does seem to be some discrepancy in the way that the figure is given, so these details might not be of much use. I have also given the view angle when listed.
There are two types of LEDS. The ones in the sidelights are Surface Mounted Devices which solder direct to the surface of the PCB. The ones in the wallwasher are the more standard “through hole” type of fixing where they have leads that go through holes on the PCB. They are then soldered and the excess leads removed.
Details of the LEDs that were tested are given below. Sometimes it was hard to distinguish whether the test LED was any brighter or not. Those with little or no difference would probably be suitable to use as a replacement.
REMEMBER -
If you have used a LED that is not listed here and it has been an exact replacement, please let me know. Give details of the supplier, their order number and the maker and their part number if known.
Sidelight
The sidelight LEDs are size PLCC2 and are clear (there is no colour to the lens -
Sidelight SMD LEDs under test -
RED
Avago HSMZ-
400 mcd clear
Brighter
Avago HSMC-
100 mcd clear
Appears to be the same / slightly dimmer?
BEST REPLACEMENT
Kingbright KA3528 series Hyper Red Rapid Electronics order no. 72-
230 mcd clear
Appears to be the same / slightly dimmer?
Kingbright KA3528 series Super Red Rapid Electronics order no. 72-
300 mcd clear
Dimmer
Kingbright KA3528 series HE Red Rapid Electronics order no. 72-
30 mcd transparent
Very dim
GREEN
Avago HSMM-
200 mcd clear
Dimmer
Avago HSMM-
280mcd clear
Slightly brighter / slightly different shade
BEST REPLACEMENT
Avago HSMG-
8 mcd clear emerald green
Very dim
Kingbright KA3528 series Green Rapid Electronics order no. 72-
40 mcd clear
Very dim
BLUE
Avago HSMN-
70 mcd clear
Appears to be the same
BEST REPLACEMENT
Avago HSMN-
50 mcd clear
Very dim
Kingbright KA3528 series Blue Rapid Electronics order no. 72-
200 mcd clear
Slightly dimmer, possibly slightly different shade
Wallwasher lights
The wallwasher LEDs are 5mm oval and are tinted diffused (they are transparent with
the colour tint, rather than the more solid colour as often seen in round LEDs).
Although round 5mm LEDs may fit on the PCB (the pin spacing is the same), the oval
LEDs give a much better viewing angle. Replace the LEDs with the oval type if possible.
The DEG is the view angle -
Wallwasher LEDs under test -
RED
Avago HLMP-
800 mcd 40 x 100 DEG diffused
Similar
2nd BEST REPLACEMENT
Avago HLMP=HG65-
2400 mcd 40 x 100 DEG diffused
Similar
BEST REPLACEMENT
Avago HLMP-
880 mcd 30 x 70 DEG these are almost round
Slightly dimmer, not such a wide viewing angle
Avago HLMP-
3500 mcd 30 x 70 DEG these are almost round
Brighter?
Avago HLMP-
7200-
Same brightness narrow view angle
GREEN
all the green LEDs have a slightly yellower look to them compared to the original, whereas the original has a slightly bluer look when compared to these LEDs. probably not enough to make that much difference if one LED is replaced, but may affect the colour slightly if a group of green LEDs are replaced.
Avago HLMP-
5040 mcd 40 x 100 DEG
Possibly slightly brighter
BEST REPLACEMENT
Avago HLMP-
35000-
Brighter narrow view angle
AvagoHLMP-
16000-
Brighter narrow view angle
Avago HLMP-
12000-
Brighter narrow view angle
Avago HLMP-
6050 mcd 30 x 70 DEG
Possibly slightly brighter
BLUE
Avago HLMP-
4200-
Brighter narrow view
Avago HLMP-
1660 mcd 30 x 70 DEG
Slightly brighter
Avago HLMP-
1150 mcd 40 x 100 DEG
Slightly brighter
BEST REPLACEMENT
Avago HLMP-
3200-
Brighter narrow view angle
Avago HLMP-
7200-
Brighter narrow view angle
|
Sidelight PCB / Speakerlight light PCB | ||
|
|
|
|
|
Number |
Purpose or other components it connects to |
Value |
|
|
Resistor - |
|
|
4 |
IC1 pin3 / red in from J5 pin 2 |
10K |
|
5 |
IC1 pin3 / in series with R6 Note - |
390R |
|
6 |
GND / in series with R5 |
47R 1% |
|
7 |
Bias for T1 - |
47K |
|
8 |
Bias for T4 - |
47K |
|
10 |
IC1 pin 5 / green in from J5 pin 4 |
10K |
|
11 |
IC1 pin5 / in series with R12 |
510R |
|
12 |
GND / in series with R11 |
47R 1% |
|
13 |
Bias for T2 - |
47K |
|
14 |
T4 emitter / GND |
47R 1% Large |
|
16 |
IC1 pin 10 / blue in from J5 pin 6 |
10K |
|
17 |
IC1 pin 10 / in series with R18 |
510R |
|
18 |
GND / in series with R17 |
47R 1% |
|
19 |
Bias for T3 - |
47K |
|
29 |
Bias for T9 - |
47K |
|
30 |
T9 emitter / GND |
47R 1% Large |
|
39 |
Bias for T14 - |
47K |
|
40 |
Sensor circuit: parallel with C10 |
6K8 1% |
|
42 |
T14 emitter / GND |
47R 1% Large |
|
44 |
T3 emitter / GND used for calibration pins are 5 x 5 pitch |
100R preset pot |
|
47 |
T2 emitter / GND used for calibration pins are 5 x 5 pitch |
100R preset pot |
|
49 |
T1 emitter / GND used for calibration pins are 5 x 5 pitch |
100R preset pot |
|
|
Total 19 resistors and 3 preset potentiometers |
|
|
|
R14 R30 and R42 are size type 1202 |
|
|
|
The rest are size type 0805. |
|
|
|
|
|
|
|
Capacitors - |
|
|
1 |
IC1 pin 3 / (R5 + R6) to GND |
small SMD |
|
2 |
IC1 pin 5 / (R11 + R12) to GND |
small SMD |
|
3 |
IC1 pin 10 / (R17 + R18) to GND |
small SMD |
|
4 |
VCC / GND - |
100/25 elect |
|
5 |
VCC / GND |
small SMD |
|
6 |
Sensor circuit: VCCS / GNDs - |
1/50 elect |
|
7 |
Sensor circuit: VCCS / GNDs |
small SMD |
|
8 |
VCC / GND - |
small SMD |
|
10 |
Sensor circuit: parallel with R40 |
large SMD |
|
12 |
VCC / GND - |
100/25 elect |
|
14 |
VCC / GND - |
10/25 elect |
|
15 |
VCC / GND - |
10/25 elect |
|
16 |
VCC / GND - |
10/25 elect |
|
17 |
VCC / GND |
small SMD |
|
18 |
VCC / GND - |
10/25 elect |
|
19 |
VCC / GND - |
10/25 elect |
|
20 |
VCC / GND |
small SMD |
|
21 |
VCC / GND - |
10/25 elect |
|
22 |
VCC / GND |
small SMD |
|
|
Total 19 capacitors |
|
|
|
The value of the SMD capacitors is unknown - |
|
|
|
|
|
|
|
|
|
|
|
Transistors |
|
|
T1 |
BC818- |
|
|
T2 |
BC818- |
|
|
T3 |
BC818- |
|
|
T4 |
BC818- |
|
|
T9 |
BC818- |
|
|
T14 |
BC818- |
|
|
|
Total 6 Transistors |
|
|
|
|
|
|
|
|
|
|
|
Diodes |
|
|
D1 |
PESD24VS2UT (WU4) ESD protection at Blue input |
|
|
D2 |
PESD24VS2UT (WU4) ESD protection at Green input |
|
|
D3 |
PESD24VS2UT (WU4) ESD protection at Red input |
|
|
DA3 |
PESD5V0S2BT (WG5) ESD protection for sensor circuit |
|
|
|
|
|
|
|
|
|
|
|
Light Emitting Diodes |
|
|
LD1- |
group 1 Red LEDs |
|
|
LD4- |
group 1 Green LEDs |
|
|
LD9- |
group 1 Blue LEDs |
|
|
LD13- |
group 2 Red LEDs |
|
|
LD33- |
group 2 Green LEDs |
|
|
LD53- |
group 2 Blue LEDs |
|
|
|
LEDs are manufactured by AVAGO and are size PLCC2 - |
|
|
|
|
|
|
|
|
|
|
|
Integrated circuits |
|
|
IC1 |
324 quad op- |
|
|
IC3 |
LM78L05ACM 5v regulator supplies 5v VCC for the sensor circuit (VCCS) |
|
|
|
|
|
|
|
|
|
|
|
Sensor |
|
|
U1 |
Phototransistor - |
|
|
|
|
|
|
|
|
|
|
|
Cable Jumper connections |
|
|
J5 |
Connects incoming cables from wallwasher to PCB |
|
|
J6 |
Connects to PCB VCC and GND Not fitted |
|
|
|
|
|
|
|
|
|
|
|
VCCS and GNDs = sensor circuit supply |
|
|
|
all components, apart from the preset potentiometers and electrolytic capacitors are SMD |
|
|
|
Note - |
|
|
|
|
|