Text preview for : CTC211_sf_convergence.pdf part of RCA D52130 Large File 6 pare RAR Folder containing: Flow Charts, Tech Tips, Trouble Shooting Manuals, Updates, Module Training, and Symptom Fixes
Back to : RCA_CTC210-211_01.rar | Home
Chassis Part Symbol Defective Circuit MMC102 A R19624 MMC102 A sensor MMC102 G U19501
Convergence Convergence
solution Resolder 220 code error shut downs. found one side of R19624 not soldered. this was at the connection connection of R19624 and C19548. This was causing the reset to not work on the U19502 R19624. Intermittent red convergence,when doing auto covergence it came up saying sensor not Reseating sensor found. Found sensor not seated properly. repaired the unit. Intermittent convergence. Problem would happen more when cold. Could not get it to act up with freeze spray or heat. Replaced U19501 and set has not acted up again. Replaced U19501. Unit is in shutdown. Error code was (not communicating with U19501). Measuring the Techi bus at J19308, we found it running about 9.8vdc. The 5VR digg (digital convergence board) was at 9.8vdc. Found CR19506 (5.1 vdc zener) on the digital convergence processing board had never been soldered. stock, convergence bowed at the top and the bottom found Q14502 glued to the board but not soldered , soldered Q14502
Symptom
Convergence
CTC211 A CR19506 DTV307 GC Q14502
Convergence Convergence
Solder CR19506. soldered Q14502
DTV307 CR19711
convergence
Lack of control of the convergence, picture was bowed etc. CR19711 checked leaky, causing shutdown of the convergence power supply.
Replaced CR19711