![background image](http://html2.mh-extra.com/html/panasonic/bb-hcm381ce/bb-hcm381ce_service-manual_4921035077.webp)
The communication with MAIN CPU (IC101) on MAIN board is
established by the serial signals (RXD_232C, TXD_232C) via CN902.
Also, the communication with CDS&AGC (IC801) and Video DSP (IC803)
is established by the serial signals (CS_CDS, SDI_DSP, SDCLK_DSP,
SDO_DSP, SLD_DSP). At the time of CPU (IC902) program upgrade, it is
set to the upgrade mode by BOOT1 and BOOT2 signal in MAIN CPU
(IC101), and the data is transferred via the serial signals (RXD_232C,
TXD_232C) and written.
The timing synchronization with Video DSP (IC803) is performed by
FV_DSP, EP1_DSP and EP2_DSP. The lens control is performed by
signals including PWM connected to the lens board via CN904.
15.1.2.2. Video Signal Process Block
- CDS (IC801)
Power-supply voltages: 3.3V
Package: 36pin QFP
Performs CDS (Correlate Double Sampling) process for CCD output
signal from CCD board, AGC (Auto Gain Control) process and A/D
conversion (10bit)
CCD output signal is sampled with SP1 and SP2 signal to reduce noise
in CDS circuit. Then, after being adjusted to the specified level in
accordance with the serial signal (CS_CDS, SDI_DSP, SDCLK_DSP)
instruction from CAMERA CPU (IC902) in GCA circuit, it is converted to
10bit, the digital signal with the sampling frequency: 14,31818 MHz of
ADCLK input signal by A/D converter. This output signal is adjusted in
order that OB (Optical Black) on CCD output signal shall be standard
level by OBP signal.
- VIDEO DSP (IC803)
Power-supply voltages: +3.3V
Package: 120pin QFP
Clock frequency: 28.636MHz (X801)
Processes CDS IC (IC801) output signal and outputs Y signal and C
signal. Outputs CCD drive signal.
Writing each setting to this IC and reading of data is performed by the
serial signal (CS_CDS, SDI_DSP, SDCLK_DSP, SDO_DSP, SLD_DSP) in
CAMERA CPU.
<Video signal process>
The signal input from CDS IC (IC801) is composed of luminance signal process and color signal
process.
- Luminance signal process
77
Содержание BB-HCM381CE
Страница 4: ...Lens Board 4...
Страница 5: ...Video Board CCD Board 5...
Страница 25: ...1 Remove three Screws C And remove the Cabinet Cover 25...
Страница 26: ...2 Remove the Screw B And remove the I O Board 26...
Страница 29: ...3 Remove eight Screws A 4 Remove the Upper Tilt Cover And remove the Lower Tilt Cover 29...
Страница 31: ...4 Remove the Tilt Belt 5 Remove the Tilt Block Ass y Camera Unit 31...
Страница 38: ...When fix Lens Board by the Screws please use the jig not to shift Lens Guide Ass y 38...
Страница 39: ...10 6 CCD UNIT 39...
Страница 49: ...12 TROUBLE SHOUTING 12 1 STARTUP OPERATION 12 2 OTHER FUNCTION CHECK 49...
Страница 50: ...12 3 IMAGES BLOCK CHECK 50...
Страница 51: ...51...
Страница 52: ...12 4 CAMERA UNIT CHECK 52...
Страница 53: ...53...
Страница 54: ...12 5 LENS PCB CHECK 54...
Страница 55: ...55...
Страница 56: ...12 5 1 ZOOM Operation Check 56...
Страница 57: ...12 6 SOUND BLOCK CHECK 57...
Страница 58: ...12 6 1 External Microphone 58...
Страница 59: ...12 6 2 Speaker Output 12 6 3 Common Flow for External Microphone and Speaker Output 59...
Страница 60: ...12 7 PAN TILT OPERATION CHECK 12 7 1 PAN Operation Check 60...
Страница 61: ...12 7 2 TILT Operation Check 61...
Страница 62: ...12 8 LAN BLOCK CHECK 62...
Страница 63: ...12 9 SD CARD CHECK 63...
Страница 64: ...64...
Страница 65: ...12 10 POWER SUPPLY BLOCK CHECK 65...
Страница 66: ...66...
Страница 67: ...12 11 RTC CIRCUIT CHECK 67...
Страница 68: ...12 12 I O TERMINAL CHECK 68...
Страница 69: ...12 13 LED CIRCUIT CHECK 69...
Страница 70: ...12 14 INITIALIZATION OPERATION CHECK 70...
Страница 71: ...12 15 VERSION UPGRADE CHECK 71...
Страница 74: ...13 THE WAY OF THE INITIALIZE 13 1 FACTORY DEFAULT RESET Button The camera has a FACTORY DEFAULT RESET button 74...
Страница 79: ...15 1 3 Lens Board Function Zoom Focus and Iris in LENS UNIT driving 15 1 3 1 IRIS Drive Block 79...
Страница 94: ...19 ACCESSORIES AND PACKING MATERIALS 94...
Страница 95: ...20 REPLACEMENT PARTS LIST Note 1 RTL Retention Time Limited 95...
Страница 100: ...C129 ECJ0EF1C104Z 0 1 100...
Страница 102: ...C212 ECJ0EC1H101J 100p 102...
Страница 104: ...C273 ECJ0EF1C104Z 0 1 104...
Страница 106: ...106...
Страница 108: ...R104 ERJ3GEYJ101 100 108...
Страница 110: ...R235 ERJ3EKF51R1 1 1 110...
Страница 116: ...116...
Страница 119: ...C939 ECJ0EC1H101J 100p 119...
Страница 121: ...R819 ERJ2GEJ101 100 121...
Страница 124: ...Ref No Part No Part Name Description Remarks R1105 ERJ3GEY0R00 0 R1106 ERJ3GEYJ151 150 20 8 I O BOARD PARTS 124...
Страница 127: ...F501 D4FBR200A003 FUSE 127...
Страница 133: ...IC1101 7 1 8 14 BB HCM381 CCD BOARD BOTTOM VIEW...
Страница 143: ...C B A D E1 E2...
Страница 144: ...F3 F2 G2 E3 F1 G1...
Страница 145: ...I1 I2 I3 K1 K2 K3 K4 Tilt Scan L1 L2 M1 M2 H2 H3 H4 H5 J1 J2 J3...
Страница 146: ...O2 O1 P1 P2 P3 P4 O3 10Base Hub Connection un communicating 10Base Hub Connection un communicating N...
Страница 147: ...P6 P7 P8 P9 10Base Hub Connection Communicating Q R1 R2 S1 S2 S3 T1 P5...
Страница 148: ...V W1 W3 W4 W2 X1 X2 X3 T2...
Страница 149: ...X6 Y4 Y1 Y2 Y3 Z1 Z2 Z3 Z4 X4 X2 X3 X5...
Страница 150: ...a1 a2 a3 b1 b2 b3 b4 Pan Scan...