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MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819
CRT REPLACEMENT
1. Removal of the CRT
Caution!
High voltage should be completely discharged prior to CRT removal.
Since The CRTs receive high voltage from the HV Block, discharge
by shorting the open end of the respective high voltage cable to
chassis ground.
Note:
Refer to the Cabinet Disassembly Procedures when performing steps 1 through 4.
1.
Remove the Speaker Grille, Front Board, and Screen Assy.
2.
Remove the Back Board.
3.
Remove the Anode Lead Wire from the CR Block.
4.
Remove the PCB-CRT.
5.
Remove 4 hex-screws "a" retaining the Optical Unit. [Figure 5-1]
6.
Remove 4 screws "b" retaining the Lens.
Note: DO NOT loosen the RED screws.
Doing so will break the seal between the
C-Element and the # 6 Lens, causing leakage of the CRT Coolant.
7.
Remove 4 screws "c" retaining the CRT. [Figure 5-2]
8.
Remove the Deflection Yoke from the neck of the CRT. [Figure 5-7]
Figure 5-2
Figure 5-1
Note:
The 4 spring-loaded screws shown
in Fig 5-2 and labeled as "DO NOT
REMOVE", should not be loosened
under any circumstance. Doing so
will break the seal between the
CRT and the CRT-Spacer, causing
leakage of the CRT Coolant.
Summary of Contents for WS-55809
Page 2: ......
Page 60: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 60 STANDBY SUPPLIES REGULATOR ...
Page 61: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 61 SWITCHED SUPPLIES REGULATOR ...
Page 62: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 62 VIDEO COLOR A V SWITCH CIRCUIT ...
Page 63: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 63 PCB SIGNAL Y C PATH ...
Page 64: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 64 SYNC PATH ...
Page 65: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 65 DEFLECTION CIRCUIT X RAY PROTECT ...
Page 66: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 66 SOUND CIRCUIT ...
Page 67: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 67 CONVERGENCE CIRCUIT ...
Page 68: ...MODELS WT 46809 WS 55809 WS 55819 WS 65809 WS 65819 Page 68 CONTROL CIRCUIT ...
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