Brand: HITACHI
Category: TV
Document Type: Parts/Service
Language: EN
Brand: HITACHI
Category: TV
Document Type: Parts/Service
Language: EN
Uploaded: Nov. 21, 2025, 7:22 p.m.
Manual Publish Date: 2005-11-01
How to get to Adjustment mode
Using the front control buttons with the set turned off (standby) can activate it. Press the SUB-POWER button, INPUT SELECT button and button at the same time, and hold for more than 5 seconds. The set turns on in adjustment mode with OSD.Changing data and Selecting Adjustment code
When the set is in adjustment mode, the cursor and OK buttons of the remote control or front panel may be used as the adjustment keys. ▲, buttons are used for selecting adjustment code. buttons are used for changing data values. OK button is used for confirming the data. After finishing the necessary adjustment press MENU button. Adjustment mode is released and the set returns to normal condition.Memory Initialize operation
NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjustment data will be lost.Procedure
(1) Enter Adjustment Mode. (2) Select MEMORY INIT adjustment code (No.818) and change the data value from 0 to 1. (3) Activate MEMORY INIT by pressing OK button. (4) Select No.712 and change data value from 1 to 0. (5) Check that the receiving channel goes to P1. Unit is set to preset values.| No. | PIN NAME | I/O | Panel: PDP/LCD | FUNCTION |
|---|---|---|---|---|
| 1 | VREF (+5.0V) | PDP/LCD | 5V | |
| 2 | +5.0V | PDP/LCD | 5V | |
| 3 | AUDIO_SW1 | I/O | PDP/LCD | Audio SW1 |
| 4 | OSD DATA | I/O | PDP/LCD | OSD DATA |
| 5 | OSD CLK | I/O | PDP/LCD | OSD CLK |
| 6 | HP VOL | I/O | PDP/LCD | Head Phone Volume |
| 7 | FUNC_1 | I/O | PDP/LCD | Function1 |
| 8 | DATA_OUT(FC) | I/O | PDP/LCD | FC MicroComputer 3 Lines Bus Data Out /Media Data Out |
| 9 | DATA_IN(FC) | I/O | PDP/LCD | FC MicroComputer 3 Lines Bus Data In/ Media Data In |
| 10 | CLK(FC) | I/O | PDP/LCD | FC MicroComputer 3 Lines Bus Clock/ Media Clock |
| 11 | BL INST | I/O | PDP/LCD | Black Insert On/Off for 32V LCD (37V=Low) |
| 12 | BL BLINK | I/O | PDP/LCD | Backlight Blink On/Off for 32V LCD (37V=Low) |
| 13 | GND | PDP/LCD | GND | |
| 14 | CNVSS(FLASH) | PDP/LCD | CNVSS(FLASH) | |
| 15 | DSUB COMP | I/O | PDP/LCD | Sync Switching |
| 16 | RGBSW | I/O | PDP/LCD | Sync Switching |
| 17 | RESET | PDP/LCD | Reset | |
| 18 | 16MHz Oscillation | O | PDP/LCD | OSC-OUT |
| 19 | GND | PDP/LCD | GND | |
| 20 | 16MHz Oscillation | PDP/LCD | OSC-IN | |
| 21 | +5.0V | PDP/LCD | 5V | |
| 22 | NMI(+5.0V) | PDP/LCD | 5V PULL UP | |
| 23 | RMCON | I/O | PDP/LCD | Receiving Remote Control Signal |
| 24 | NC | I/O | PDP/LCD | NC |
| 25 | V.FREQ 3 | I/O | PDP/LCD | V.Frequency |
| 26 | SCV.SYNC | I/O | PDP/LCD | SUB_Y.SYNC (Composite) |
| 27 | IRQ (PM-IRQ) | I/O | PDP/LCD | PDP Control |
| 28 | MCV.SYNC | I/O | PDP/LCD | MAIN_Y.SYNC (Composite) |
| 29 | POWER_LED | I/O | PDP/LCD | L:Lighting (Power Save) |
| 30 | FUNC_2 | I/O | PDP/LCD | Function2 |
| 31 | CEC_OUT | I/O | PDP/LCD | CEC OUT(CEC1) |
| 32 | H.FREQ_3 | I/O | PDP/LCD | H.Frequency |
| 33 | PDWN | I/O | PDP/LCD | Panel LVDS |
| 34 | RXD2 | I/O | PDP/LCD | RS-232C Communication |
| 35 | TXD2 | I/O | PDP/LCD | RS-232C Communication |
| 36 | TXD1(RS232C/FLASH) | I/O | PDP/LCD | FLASH for Writing |
| 37 | PDP/LCD | 5V | ||
| 38 | RXD1(RS232C/FLASH) | I/O | PDP/LCD | FLASH for Writing |
| 39 | PDP/LCD | GND | ||
| 40 | SCLK(FLASH) | I/O | PDP/LCD | FLASH for Writing |
| 41 | BUSY(FLASH) | I/O | PDP/LCD | FLASH for Writing |
| 42 | TXD0(DTT) | I/O | PDP/LCD | DTT |
| 43 | RXD0(DTT) | I/O | PDP/LCD | DTT |
| 44 | SDA4(panel) | I/O | PDP/LCD | PDP Communication (I2C Bus) |
| 45 | SCL4(panel) | I/O | PDP/LCD | PDP Communication (I2C Bus) |
| 46 | M ENABLE | I/O | PDP/LCD | Media Enable |
| 47 | M_SCLK | I/O | PDP/LCD | Media Clock |
| 48 | M SDA | I/O | PDP/LCD | Media Data |
| 49 | M_WAKEUP | I/O | PDP/LCD | Media Wakeup |
| 50 | PDPGO(PM_ON) | I/O | PDP/LCD | PDP Control/LCD Panel 12V/WVGA Power |