Hitachi C43-FD5000, Service Manual

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SERVICE ADJUSTMENTS
(3) Enter to split mode and display AV3 and AV4.
(4) Enter to service mode.
(5) Observe “B” cathode and adjust the INT level and EXT level.
Item 64 for main, item 65 for sub.
Press [ MUTE ] key on R/C to write the data into ROM.
2.21 MAGIC FOCUS INITIALIZE
2.21.1 MAGIC FOCUS INITIALIZE
Adjustment Preparation
(1) Receive the PAL cross-hatch or PAL circle pattern signal and set 100Hz mode.
(2) Digital convergence adjustment should be completed.
Adjustment Procedure
(1) Press the R/C Jig. command (Jig code: 509E) to start initialize operation.
(2) Several windows appear during this operation. It takes about 45 seconds by green dots appear after
initialize operation is completed.
(3) Check that green dots appear.
(4) Turn the power switch off.
(5) Change the PAL 50p mode and repeat the procedure (1) - (3) for PAL50p mode.
(6) Change the signal to NTSC circle pattern and repeat the procedure (1) - (3) for the NTSC 60p mode.
Initialize operation
OSD: PAL 100i mode * INITIAL:1*
PAL 50P mode *INITIAL:5*
NTSC 60P mode * INITIAL:6 *
NOTE : The digital convergence has 3 modes NTSC 60p, PAL 100i, PAL 50p.
Therefore this adjustment needs 3 modes.
REMARKS Another way to start the initialize operation:
(1) Press ”SERVICE ONLY” SW on CONVER/FOCUS P.W.B. to set DCU the adjustment mode.
(2) Press [ INDEX ] key on R/C. Then “ ROM WRITE? ” message is displayed to confirm the ROM writing.
(3) Press [ RECALL ] key on R/C to cancel the ROM writing and start initialization.
It takes about 45 seconds by green dots appear after initialization is completed.
(4) Check that green dots appear.
*INITIAL: 6*