Service manual

69
HCD-GNZ55D
Pin No. Pin Name I/O Pin Description
185 NC — Not used in this set. (Open)
186 NC — Not used in this set. (Open)
187 NC — Not used in this set. (Open)
188 NC — Not used in this set. (Open)
189 DAVCC — Power Supply pin (+3.3 V)
190 VREF I Bandgap reference voltage Not used in this set. (Open)
191 FS O Full scale adjustment (pull down)
192 YUV0 — Not used in this set. (Open)
193 DAVSS — Ground pin
194 YUV1 O Y signal output to VIDEO AMP
195 DAVDD — Power Supply pin (+3.3 V)
196 YUV2 O CHROMA signal output to VIDEO AMP
197 DAVSS — Ground pin
198 YUV3 O VIDEO signal output to VIDEO AMP
199 DAVDD — Power Supply pin (+3.3 V)
200 YUV4 O Not used in this set. (Connect to VCC.)
201 DAVSS — Ground pin
202 YUV5 O Not used in this set. (Connect to VCC.)
203 YUV6 O Not used in this set. (Connect to VCC.)
204 DVDD3 — Power Supply pin (+3.3 V)
205 MIC/VSYNC I Microphone status signal input
206 VOICE/YUV7 I Not used in this set. (Connect to VCC.)
207 KRMOB/HSYNC O Karaoke mode detection signal output
208 SMSCK I Not used in this set. (Open)
209 SPDATA/SMSDI I Audio data of SPDIF input Not used in this set. (Connect to VCC.)
210 MUTE O Mute signal output
211 MUTE123 O Mute signal output
212 DVDD3 — Power Supply pin (+3.3 V)
213 ALRCK I Audio left/right channel clock signal input
214 ABCK O Audio bit clock signal output
215 ACLK I Audio DAC master clock signal input
216 DVSS — Ground pin
217 ASDATA0 O Auio serial data signal output
218 ASDATA1 O Auio serial data signal output
219 ASDATA2 O Auio serial data signal output
220 XRST O Reset signal output
221 DVDD18 — Power Supply pin (+1.8 V)
222 ASDATA4 O Auio serial data signal output
223 DVSS — Ground pin
224 DWIDE — Not used in this set. (Open)
225 SDPIF O SPDIF signal output
226 RFGND18 — Ground pin
227 RFVDD18 — Power Supply pin (+1.8 V)
228 ZTALO O Oscillator signal output (27 MHz)
229 ZTALI I Oscillator signal input (27 MHz)
230 JITFO O RF jitter meter output
231 JITFN I Negative input of operation amplifier for RF jigger meter
232 PLLVSS — Ground pin
233 IDAC — Not Used.
234 PLLVDD3 — Power Supply pin (+3.3 V)
235 LPFON O Negative output of loop filter amplifier
236 LPFIP I Positive input of loop filter amplifier
237 LPFIN I Negative input of loop filter amplifier