Hitachi 61HDX98B Manual page 47

DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTION
Pin No. ID Port Identification
1 HSYNC OSD H. Pulse
2 VSYNC OSD V.Pulse
3 AD4 AFC
5 TIM2 PIP Sync Det
6 P43 AC (50/60 Hz)
7 AD3 Side Panel APL
8 AD2 Dimmer
9 P26 V.STOP
10 P27 CH Change Mute
11 PWM4 H.BLK-HP
12 P50 MAIN/PinP
13 P01 SCL
14 P47 Smooth Wide
15 P02 SDA
16 P51 4:3
17 SIN Tx
18 N/A N/A
19 INT1 Request
20 N/A N/A
21 SOUT Rx
22 N/A N/A
23 SCLK Clock
24 Avcc Avcc
25 HLF HLF
26 RVCO TRVCO
27 VHOLD VHOLD
28 CVIN C. Video Input
29 CNVSS CNVSS
30 OSC In OSC in
31 OSC Out OSC Out
32 VSS Ground
33 Vcc Vcc
34 OSC In OSC In
35 OSC Out OSC Out
Receives Horizontal Blanking pulses 5VP/P for Service OSD positioning
Receives Vertical Blanking pulses 5VP/P for Service OSD positioning
Receives the AFC S-Curve signal produced by the PinP tuner indicating the accuracy of the PinP tuning.
Detection of PinP Tuner Sync for Auto Programming and AFC
Detection of A/C line frequency from Schmitt Amp Q015 and Q016
Timing Pulse input for OSD creation of Side Panels
(Not Used)
Cutoff. This output Stops the Vertical circuit and shuts off the Spot circuit
Mutes Audio through Q022 to Surround PWB during channel change
Outputs a control signal to the RC network attached to IZ06 controlling the phase of the Side Pannel pulses.
Outputs a control signal to I012 for selection of Main Sync or PinP Sync.
Clock for the EEPROM
Outputs control signal to Q753 and I751 to switch deflection to Smooth Wide
Data for the EEPROM
When Fill, Full or Smooth Wide mode is selected in NTSC, output high to prevent generation of Mask Pulse
since no side panels are used.
Data output from Slave Micro to DM-1 module
No Connection
Request data from/to the DM-1 Module
No Connection
Data input from DM-1 module to Slave Micro
No Connection
Clock for the DM-1 data transmission
+5V
Resistive Fixed
Fixed by Capacitor
Input for Composite Video for Closed Caption detection. However, the DM-1 module actually generates the Closed Caption charac-
ters.
Ground
+5V
Function Active
Pulse
Pulse
Signal
Low
Pulse
Pulse
n/a
High
High
High
High
Data
High
Data
High
Data
Data
Data
Data
Signal