Wednesday, January 14, 2026

Yamaha Pacifica PAC612VIIFMX - Part 6


Replacement Parts

We'll start off today's post with a look at replacement parts that will be installed in this Yamaha Pacifica PAC612VIIFMX. In the electronics department, the stock volume pot will be replaced with an Alpha A500K, and the pickup selector switch with a Gotoh DM-50.



Alpha A500K Pot

Gotoh DM-50 Switch


  
Meanwhile, in the hardware department, parts to be replaced include both set-screw control knobs, as well as the black saddle height and intonation screws. With regard to the stock saddle height screws (6 mm), their replacements are slightly longer at 10 mm. 



Replacement Knobs (Right)

Replacement Saddle Height Screw (Arrowed)

Replacement Intonation Screw (Arrowed)

Replacement Screws in Place



Pickups - A Closer Look

Upon disassembling the pickguard and humbucker ring, it's reassuring to see that all three pickup cavities are shielded with conductive paint. The neck single-coil is a Duncan SSL-1, the middle, an RWRP (Reverse Wind Reverse Polarity) SSL-1, and the bridge humbucker, a TB-14. And, looking at the date codes on the labels, it's evident that all three pickups were manufactured in 2021.



Shielded Neck and Middle Pickup Cavities

Undersides of Neck and Middle Pickups

Neck Pickup Label

Middle Pickup Label

Shielded Bridge Humbucker Cavity

Bridge Humbucker Label



Electronics Work

Before proceeding with any electronics work, I made sure to draw up some sort of wiring diagram that I could refer to later. The stock wiring was a literal rat's nest, and there was no way I'd be able to memorize all the connections. Besides desoldering the stock volume pot and selector switch and wiring in their respective replacements, I also had to replace two wires to the push-pull tone pot, as the original ones were way too short. 



Layman's Wiring Diagram

Stock Volume Pot

Stock Alpha BH35P Switch

Longer Wires to the Tone Pot

Pickup Leads and Tremolo Claw Ground

Rewiring in Progress

Rewiring Completed

Shielding the Control Cavity Cover

Pickups After Cleaning and Polishing

 

Monday, January 05, 2026

Epiphone DR-100 Acoustic - Part 1

Part 2 ▶

January 5, 2025. CA Guitar Repair. Taman Impian Ku, 25200 Kuantan.
The owner of this Epiphone DR-100 Acoustic has requested a string change and tuner upgrade.






Ibanez GIO Bass Needs a Setup

January 5, 2025. CA Guitar Repair. Taman Impian Ku, 25200 Kuantan.






Friday, December 26, 2025

Adonis Acoustic Overhaul - Part 4

Part 1 | Part 2 | Part 3 | Part 4 | Part 5

It's the 3rd of December, and the clamps around the soundhole have been applied and taken off for the third time. I'm glad to report that the delaminated layers have been "reunited," so to speak. Admittedly, there are a few rough edges here and there, but a little sanding should take care of that.



Lower Soundhole - Image 1

Lower Soundhole - Image 2

Upper Soundhole - Image 1

Upper Soundhole - Image 2



Right, then. What remains is to reinforce the reglued areas with wooden braces. As luck would have it, I've somehow misplaced the braces I'd fashioned earlier, and have had to make new ones. Now comes another round of gluing and clamping, and this should be the last time as far as the soundhole is concerned.



Custom Soundhole Braces

Fourth Round of Clamping

Upper Soundhole Brace Glued in Place

Lower Soundhole Brace Glued in Place



With the warped soundhole having been taken care of, let's get back to that bulging belly. It's December 6, and I've utilized the usual nyatoh planks I keep around specifically for this job, securing the jig with four F-clamps. This time around, there's no need to seal the soundhole or humidify the inside of the body as it's raining 24/7. Let's fast forward to December 21, then. As you can see, the belly bulge has virtually disappeared.



December 6 - Belly Bulge Treatment Commences

December 21 - Top is Sufficiently Flat



Next on the list is the bridge. There's a substantial amount of wood slivers and splinters to be removed, and the bottom also needs to be flattened. For the first task, I've utilized a rectangular metal scraper, and the second, a sanding block and abrasive paper. The bridge should fit snugly onto the top now.



Unwanted Wood Splinters and Slivers

Scraping Off Splinters and Slivers

Flattening the Bottom

Bottom of Bridge Fully Prepped



Prepping the bottom of the bridge for regluing is only the first chapter of this story. I also have to "ramp" the bridge in order to lower the action sufficiently. To this end, I'll be (1) lowering the area around the saddle, (2) Cutting slots to achieve sufficient string break angle, and (3) lowering the saddle itself.



This Area Will Be Lowered

Rotary Tool/Sanding Band in Use

Slots Cut Into Bridge



Folks, it's now time to reglue the somewhat modified bridge back onto the top. And, of course, the area of the top directly beneath the bridge has already been tidied up and flattened with chisels and abrasive paper. The implements used for this reglue include Titebond Original Wood Glue, small wooden cauls, and four StewMac Soundhole Clamps. It's the 26th of December today, and the third wave of the monsoon has just begun. That being said, I believe we'll be needing a little more time than usual for the glue to cure. 



Top Prepped for Regluing

Bridge Reglued and Clamped in Place

      

Saturday, December 13, 2025

Carolers Visit Taman Impian Ku

December 12, 2025. Team Carol 2025 from the Tamil Methodist Church (TMC) Kuantan dropped by the home of Uncle Ramesh (my neighbor) earlier tonight.



Team Carol 2025 T-Shirt

Team Carol 2025

Team Carol 2025 with Uncle Ramesh