Sound Skulptor LA502 Page 3 Assembly Manual Download

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Document revision 1.2 – Last modification : 17/07/20

LA502 Assembly guide – Main PCB

6. Ceramic capacitors

Add C4,
Add C14.
Add C1, C2.
Add C7...C12, C19...C22, C25, C26.
Add C6.

7. Test pins

Solder the 6 test pins TP1 to TP3, V+, V- and 0V.
The pins are inserted squared shortest end first. They require some pressure to fit. Cut short on the
solder side after soldering.

8. Film capacitors

Add C16, C17, C18.

9. Transistors and regulators

Add Q1, U7 and U10.

Warning

: Watch out the devices direction.

Summary of Contents for LA502

Page 1: ...der Cut the component leads and pins totally flush with the PCB after soldering A too long tail could create an electric connection with the side plate Here are two excellent introduction to soldering videos http www eevblog com 2011 06 19 eevblog 180 soldering tutorial part 1 tools http www eevblog com 2011 07 02 eevblog 183 soldering tutorial part 2 LA502 Assembly guide Main PCB 1 Diodes Add D2 ...

Page 2: ...t to check the resistors value with a DMM because the color code can be ambiguous For example 1K brown black black brown brown can be confused with 110R brown brown black black brown 4 IC Sockets Insert and solder the six 8 pins sockets and two 14 pins sockets Warning Make sure to respect the socket direction marked by a notch 5 Relay Add RLY1 Warning Make sure to respect the direction of the rela...

Page 3: ... C22 C25 C26 Add C6 7 Test pins Solder the 6 test pins TP1 to TP3 V V and 0V The pins are inserted squared shortest end first They require some pressure to fit Cut short on the solder side after soldering 8 Film capacitors Add C16 C17 C18 9 Transistors and regulators Add Q1 U7 and U10 Warning Watch out the devices direction Copyright 2017 to Today SoundSkulptor ...

Page 4: ...critical for a good front plate matching They must sit flat on the PCB Press firmly the switch on the PCB and solder one of the front pins housing Check verticality and horizontality Then solder the other pins 16 Input transformer Insert and solder the input transformer 17 Potentiometers P1 P2 Place the bracket on the potentiometer bushing and attach it with the lock washer and nut Tighten Insert ...

Page 5: ...ith the meter PCB assembly LA502 Assembly guide Meter 21 Meter PCB Break the meter PCB from the cover PCB There are actually two but only one is needed Smooth out the cut with very fine sand paper 22 10 pins connector Solder CN1b the 10 pins connector on the back side of the PCB That is the side without any writing Solder one pin first check verticality then solder the other pins Warning the conne...

Page 6: ...he first LED in its hole longest lead above PCB shortest lead below Push the LED forward as far as possible against the front panel and solder the top lead Repeat the process for all six LED s 25 LED s 2 When done remove the chassis from the main PCB by unscrewing the two 25mm spacers unplug the LED s PCB and solder the short lead of the LED s on the bottom side of the LED s PCB LA502 Assembly gui...

Page 7: ...7 20 LA502 Assembly guide Final assembly 28 Test and setup It is time for test and setup Follow instructions on LA502 setup guide pdf 29 Closing Attach the cover PCB with four M3x6 countersunk screws 30 Congratulations You re done Copyright 2017 to Today SoundSkulptor ...

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