Hitachi HTD-K185UK, Service Manual

Page: 9 / 48

138 RD23
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 23 / Videoin
Data PortA 7
139 RD22
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 22 / Videoin
Data PortA 6
140 DVDD2 Power 2.5V power pin for internal digital circuitry
141 RD21
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 21 / Videoin
Data PortA 5
142 RD20
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 20 / Videoin
Data PortA 4
143 RD19
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 19 /
Videoin Data PortA 3
144 RD18
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 18 /
Videoin Data PortA 2
145 DVSS Ground Ground pin for internal digital circuitry
146 RD17
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 17 /
Videoin Data PortA 1
147 RD16
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 16 /
Videoin Data PortA 0
148 ABCK
Output
4MA
Audio bit clock
149 ALRCK
Inout 4MA,
PD, SMT
(1 ) Audio left/right channel clock
(2) Trap value in power-on reset :
1 : use external 373 0: use internal 373
150 DVDD3 Power 3.3V power pin for internal digital circuitry
151 ACLK
Inout
4MA
Audio DAC master clock (384/256 audio sample frequency)
152 MC DATA Input Microphone serial input
153 SPDIF
Output 2-16MA,
SR : ON/OFF
SPDIF output
154 ASDATAO
Inout 4MA
PDSMT
(1 ) Audio serial data 0 (left/right channel)
(2) Trap value in power-on reset :
1 : manufactory test mode 0 : normal operation
155 ASDATA1
Inout 4MA
PD SMT
(1) Audio serial data 1 (surround left/surround right channel)
(2) Trap value in power-on reset :
1 : manufactory test mode 0 : normal operation
156 ASDATA2
Inout 4MA
PD SMT
(1 ) Audio serial data 2 (center/left channel)
(2) Trap value in power-on reset :
1 : manufactory test mode 0 : normal operation
157 ASDATA3
Inout 4MA
PD SMT
(1 ) Audio serial data 3 (surround left/surround right channel)
(2) Trap value in power-on reset :
1 : manufactory test mode 0 : normal operation OR Videoin Data PortB 1
158 ASDATA4
Inout 4MA
PD SMT
(1 ) Audio serial data 4 (center/left channel)
(2) Trap value in power-on reset :
1 : manufactory test mode 0 : normal operation OR Videoin Data PortB 2
159 DACVDDC Power 3.3V power pin for VIDEO DAC circuitry
160 VREF Analog input Bandgap reference voltage
161 FS Analog output Full scale adjustment