Text preview for : 71_pdfsam_Sanyo PLV-Z5 servicemanual.pdf part of Sanyo PLV-Z5 Sanyo multimedia projector service manual.
Chassis no MC4-Z500 and MC4-Z5BK00.
Document is split into 15 parts
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Waveform
VIDEO-IN < IC8201-(73)> Analog V-SYNC Digital H-SYNC
PC_16STEP-IN
PC_16STEP-OUT
Digital V-SYNC
Component_Y-IN
Component_Cb-IN
Component_Cr-IN
PC_R-IN
PC_G-IN
PC_B-IN
R-S&H OUT
G-S&H OUT
B-S&H OUT
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Chassis Block Diagram
Chassis Overview
DIGITAL RGB
Z5 CHASSIS OVER VIEW
IC501 S&H BLUE IC2501 LEVEL SHIFT IC8001 HDMI RECEIVER IC401 DIGITAL GAMMA IC531 S&H GREEN IC2531 LEVEL SHIFT SCAN CONVERTER IC8201 VIDEO DECODER & A/D IC4401 COLOR MANAGER IC561 S&H RED IC2561 LEVEL SHIFT R R-LCD PANEL B B-LCD PANEL
HDMI2 HDMI1 COMPUTER COMPONENT-1 COMPONENT-2 S-VIDEO VIDEO KEY SW LED SERVICE PORT R/C POWER KEY
Y CB CR Y CB CR D4 Y/C CV
POWER FAIL
AC 100~240V
HDMI2 HDMI1 D-SUB_15
DIGITAL RGB
ANALOG RGB
G G-LCD PANEL
PC_H/V
PC_RGB SOG PC_H/V SCART_CV Y,Cb,Cr Y/C CV
IC5201 YUV-SW
Y,Cb,Cr Y,Cb,Cr
IC3401 SDRAM IC301 IC801 FLASH ROM
FOR JAPAN MODEL ONLY IC1811 BUFFER IC871 COMPARATOR IC1801 BUFFER IC1821 O_EXP. SYSTEM CONTROL IC1391 EEPROM IC7841 DAC IC8841 TEMP. SENSOR FAN CONTROL FAN
TH901,902 THERMISTOR IC3801 RS-232C INTERFACE IC6551 MOTOR DRIVER IC8701 MOTOR DRIVER IRIS_PWM SLIDE DOOR MOTOR LAMP_PWM LAMP COVER SW IC4801 SUB CPU DC POWER SUPPLY LINES DC-DC CONVERTER SWITCHING POWER SUPPLY LINE FILTER PRIMARY CIRCUIT LAMP DOOR SW STANDBY 5V THERMAL SW SWITCHING POWER SUPPLY LAMP IRIS MOTOR LENS IRIS MOTOR DOOR SW
SLIDE DOOR
M
LAMP BALLAST LAMP IRIS OPTICAL BLOCK
M
M
MAIN SW
PROJECTION LENS
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Chassis Block Diagrams
Video signal processing circuit and LCD panel driving circuit
MAIN BOARD
HDMI2 HDMI1 COMPUTER S-VIDEO VIDEO COMPONENT_1 Y/Cb/Cr COMPONENT_2 Y/Cb/Cr
Y Cb Cr YCbCr_1 DR DG DB Y Cb Cr DG_1/2 SCS/SCLK/SDATA YCbCr_2
INPUT SIGNAL _Y INPUT SIGNAL _CB INPUT SIGNAL _CR INPUT SIGNAL _RED INPUT SIGNAL _GREEN INPUT SIGNAL _BLUE INPUT SIGNAL _G-ON SYNC
Timing Chart
HDMI2 HDMI1
pin 1 2 3 13 14 D-SUB_15 Input Signal RGB RGB(SCART) R R R G G-ON SYNC G B B B H_SYNC CV_SYNC V_SYNC PC_RGB/SCART SOG PC_HS/VS PC_H=SCART_CV Y/C Y S_CHROMA CV S/CV_SW PC_RGB PC_HS PC_VS
TMDS
IC8001
HDMI RECEIVER
TMDS SIHS/SIVS
SIGE SIBE
IC801 IC301
ADHS ADVS
IC8271 IC5231
S/CV SW <7W53>
SCAN CONVERTER, SYSTEM CONTROL
PW_DR PW_DG PW_DB
FLASH ROM
D-SUB_15
IC1391
EEPROM
IC8201 VIDEO DECODER &
A/D
ADCB ADCR ADY
PW_HS,PW_VS PW_CLK
IC3401 IC4401
COLOR MANAGER SDRAM
IC841
BUFFER
DHS,DVS,DCLK
IC5201
YUV SW
YCbCr
IC401
DR_1/2
COMP1/2_SW
DIGITAL GAMMA
DB_1/2
IC561
S&H RED
IC531
S&H GREEN
IC501
S&H BLUE
IC2561
Timing Chart
FRP TPFRPG
IC2531
LEVEL SHIFT
TP35R
IC2501
LEVEL SHIFT
TP35G TP35B
LEVEL SHIFT
RED S&H OUTPUT TP35R GREEN S&H OUTPUT TP35G BLUE S&H OUTPUT TP35B
K35R
K35G
K35B
R-LCD PANEL
G-LCD PANEL
B-LCD PANEL
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Chassis Block Diagrams
System Controls
MAIN BOARD
IC7841
DAC
DECODER & A/D 3.3V to 5V
54,206
IC8201
TEMP. SENSOR
IC8841
15 14 13 12
FAN_CONT1 FAN_CONT2 FAN_CONT3 FAN_CONT4
UNIT_POWER
FAN CONTROL
SCL0/SDA0
Always Available 135,134
BUS SW
IC1371
K8A CN201
MAINON_SW
1
SCL0/SDA0_5V
PC103 PHOTO COUPLER PC101 PHOTO COUPLER
SCL1/SDA1
Always Available 55,53
EEPROM 3.3V to 5V
IC1391
IC8111,8141
DDC ROM 5V
HDMI RECEIVER
IC8001
K8B CN203
PWR_SW
3
SCL2/SDA2
Standby off 64,284 78
DDC SW
R0SI_SCL/SDA R1SI_SCL/SDA
IC8171
DDC SW 5V to 3.3V
IC8121 IC8151
K8G
IRIS_PWM 6V IRIS_OPN IRIS_CLS IRS_SENS
5 5 4
DDC_SW1/SW2 3L_EN
CTL(-) DRV(+) DRV(-) CTL(+)
5
DIGITAL GAMMA BUFFER
IC401
IC501, IC531, IC561
S&H
IC2501, IC2531, IC2561
LEVEL SHIFT
MOTOR DRIVER
IC8701
2
7 1
K8H
1
6
8
M
LAMP IRIS MOTOR
7
M
LENS IRIS MOTOR
POTENTIOMETER
IC841
SCLK/SDATA/SCS
Standby off
A1 - A23
DOOR_OPN DOOR_CLS
4
MOTOR DRIVER
IC6551
3
7 1
4
K8N
FLASH ROM
IC801
IC4401 COLOR MANAGER
DDC_SCL/SDA HOT_PLUG HDMI_SW OPTION LAMP_ERR P-KEY_PW PFAIL_LV K11-K13 ERROR : L HDMI TERMINAL
IC301 SYSTEM CONTROL
D0 - D15
17-19 80 269 157 285 58 149 151 16 15 14 13 12
K01-K03
9 8
OUTPUT EXPANDER
INPUT BUFFER
MAINON_SW IRIS_PWM_PW IRIS_OPN IRIS_CLS IRIS_SENS DOOR_OPN DOOR_CLS
IC1821
IC1801
PW_LAMP_LED
TEMP_LED
PW_POWER_LED PW_READY_LED
7 6 5 2-4
COMPARATOR
IC871
1
M
DOOR MOTOR
From the power fail detection diodes.
R0HPDOUT
K28A
LED-On: H
KEY SWITCH red orange green red WARNING LED LAMP_REP LED POWER LED READY LED POWER KEY
52
R/C_PW
26 25 22 24 12 4 18 17 12 3
K8D
POWER_LED READY_LED LAMP_LED PWR_SW LAMP_ERR
13 10
P_KEY
CONTROL BOARD K8J K28D
2
SUB CPU
R/C
R/C RECEIVER
21 268 2
IC4801
R/C BOARD
RX_LAMP TX_LAMP Lamp-ON = L
1
ERROR : H
K8P CN201
RX_LAMP TX_LAMP LAMP_ON
5
LAMP BALLAST
LAMP_PWM
IC4833
16 Always Available
Lamp-ON = L LAMP_SW
1
4
POWER_FAIL
202,265 204 205 158 328 286 327
D_CLS_SW D_OPN_SW THERM2_DET THERM2 THERM1_DET THERM1
1 3
3
K8Q
1
PW_RXD/TXD
RS232C
IC3801
3
SCL0/SDA0_5V
K8R
SW902 THERMAL SW LAMP SW BOARD K8803 SW8811 SW8803 LAMP COVER SW
5V = DOOR CLOSE
DOOR SW_B BOARD K8811 SW8801
Open 5V = DOOR OPEN
K8L K8E
1 3
K8F
SERVICE PORT
1
1
DOOR SW_A BOARD K8801
Open
K8M
TH902
TH901
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Chassis Block Diagrams
Description of System control circuit
Power saving system control When the projector is standby mode, IC301(Main CPU) is not working and IC4801(Sub CPU) is only working for saving energy. IC4801 is working for power management at standby mode and lamp control at normal mode. (Refer to "Power supply circuit" for detail) Remote control R/C signal is sent to pin 52 of IC301(Main CPU) and also sent to pin 22 of IC4801(Sub CPU). R/C signal is received by IC4801 only at standby mode. Thermal switch There is the thermal switch (SW902) above the lamp holder to prevent the internal abnormal temperature rising. If the internal temperature reaches near 90°C, the switch will be opened and LAMP_SW signal will be shut off automatically and the lamp operation will be stopped. Remark; The thermal switch is not reset to normal automatically even if the internal temperature becomes normal, so in this case you have to reset it manually. Lamp cover switch If the lamp cover is not fixed securely, the lamp cover switch(SW8803) will be open, and LAMP_SW signal will be shut off automatically and the lamp operation will be stopped. Temperature sensor The projector provides the temperature sensors "TH901", "TH902" and "IC8841" to prevent the internal temperature rising abnormally and to control the cooling fans. (refer to "Fan control circuit" for detail) If the internal temperature rising abnormally over the threshold value, the IC301 shuts down after cooling. Service port The mini DIN-8 pin jack is used for service the projector with RS-232C. The RS-232C Rx/Tx signals are connected to pins 202 and 265 of IC301 via IC3801(RS-232C RECEIVER/DRIVER). The main program and data are stored in IC801(FLASH ROM). The program can be replaced with new one by specified software "FlashUpgrader".
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Chassis Block Diagrams
Motor driving circuit
MAIN BOARD
K8G
CTL(-) 269 IRIS_PWM_PW DRV(+) DRV(-) 6V CTL(+)
5
LAMP IRIS MOTOR
7
M
6
8
POTENTIOMETER
5V 58 IRIS_SENS
K8H
MOTOR DRIVER
157 5 IRIS_OPEN
DRIVER RIN CONTROL LOGIC FIN TSD
OUT1
1
1
5
IC8701
GND
4
3
M
OUT2
7
2
IC301
SCAN CONVERTER, SYSTEM CONTROL
285
4 IRIS_CLOSE
DRIVER TSD : Termal Shut Down
IRIS MOTOR PROJECTION LENS
IC6551
MOTOR DRIVER
149 5 DOOR_OPEN
K8N OUT1
1
1
DRIVER RIN CONTROL LOGIC FIN TSD
M
OUT2
7
2
151
4 DOOR_CLOSE
DRIVER
DOOR MOTOR
DOOR SW_B BOARD
1
204
SW8811
DOOR_CLOSE_SW
5V = DOOR CLOSE Open 5V = DOOR OPEN
K8L
K8811 SW8801
K8M
1
205
DOOR_OPEN_SW
K8801 Close DOOR SW_A BOARD
MOTOR FUNCTION TABLE of BA6287
FIN H L H L RIN L H H L OUT2 L H L OPEN OUT1 H L L OPEN OUTPUT MODE FORWARD MODE REVERSE MODE BRAKE MODE STAND-BY MODE FUNCTION OPEN CLOSE BRAKE STAND-BY
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Chassis Block Diagrams
Description of Motor driving circuit
Lamp Iris Motor and Lens Iris Motor The lamp iris and the lens iris are equipped for the expansion of visible contrast level. The operation of them is varied according to "Image Level Selection" and their user menu. Lamp Iris Motor The lamp iris unit is located in the front of lamp. It is controlled by the PWM signal, which is varied based upon the average luminance level of the input image signal, from pin 269 of IC301. When the image becomes darker, the lamp iris will be closed, and when the image becomes brighter, it will be opened.
WINDOW EXTENSION (OPEN) Auto mode Close mode (CLOSE) (CLOSE) WINDOW EXTENSION (OPEN) Open mode
Lamp iris unit
LAMP IRIS UNIT
MOTOR
WINDOW (variable)
CLOSE (at dark image)
CENTER
OPEN (at bright image)
APL of input signal
APL of input signal
Lens Iris Motor The lens iris is located on the projection lens. It is controlled by the IRIS_OPEN/CLOSE signals from pins 157 and 285 of IC301. The IRIS_SENS signal from the potentiometer of the lens iris unit is sent to pin 58 of IC301 and monitored the position of the lens iris.
Lens iris unit
PROJECTION LENS POTENTIOMETER MOTOR
MOTOR LENS UNIT
Door Motor The projector provides 2 door switches. The door switch-A (SW8801 on DOOR SW_A board) turns ON, when the slide shutter is opened. The door switch-B (SW8811 on DOOR SW_B board) turns ON, when the slide shutter is closed. If the slide shutter is half-open or close, the lamp does not light. When turning the projector on, the lamp starts light after SW8801 turning on. If the slide shutter error occurs during opertion, the POWER indicator will blink orange and the projector will go to stand-by mode after cooling.
Door motor
CL OS E OP
EN
MOTOR DOOR SW_B BOARD DOOR SW_A BOARD
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Chassis Block Diagrams
Fan control circuit
FN901
K78A
1 2
FN902
K78B
1 2
FN903
K78C
1 2
FN904
K78D
1 2
FN905
K78E
1 2
IC7831
IC7831
IC7831
IC7831
IC7831
MAIN BOARD
FAN_MTR1-5
S16V_F
Q6631
FAN_CONT1
FAN1 TPFAN1 FAN2
FAN_CONT2
Q6641 IC6601
FAN_SW
Q6651
FAN_CONT3
TPFAN2 FAN3 TPFAN3 FAN4 TPFAN4
IC6621
FAN_SW
Q6661
FAN_CONT4
Power-On : H
FAN_SW FAN_CONT1 FAN_CONT2 FAN_CONT3 FAN_CONT4
15 14 13 12
81
IC1801 BUFFER IC7841 DAC IC301 SYSTEM CONTROL IC4801 SUB CPU
Power Fail : L
5
PFAIL_LV
IC871 COMPARATOR
to switch LAMP_SW signal
TH901
3
K8F
1
IC8841 TEMP. SENSOR
THERM2_DET THERM2 THERM1_DET THERM1
158 328 286 327
268 91
TH902
3
IC4401 COLOR MANAGER
184 269 92
K8E
1
FAN_MTR1 FAN_MTR2 FAN_MTR3 FAN_MTR4 FAN_MTR5
PWM
Fan and sensor location
TEMP. SENSOR IC(IC8841)
THERMAL SWITCH(SW902)
DOOR MOTOR THERMISTOR(TH901)
FRONT
MAIN BOARD
FAN(FN905) THERMISTOR(TH902) FAN(FN901) FAN(FN903)
FAN(FN904)
FAN(FN902)
-78-
Chassis Block Diagrams
Description of Fan control circuit
Fan control circuit The Fan drive power supplies "FAN1", "FAN2", "FAN3" and "FAN4" are generated from "S16V_F". Each power supply drives fans as follow; FAN1 ....FN901 for power and ballast exhaust FAN2 ....FN902 for lamp cooling FAN3 ....FN903 for lamp exhaust FAN4 ....FN904 and FN905 for intake and panel cooling The fan spinning speed is controlled by "FAN_CONT1", "FAN_CONT2", "FAN_CONT3" and "FAN_CONT4" from pins 1, 2, 3 and 4 of IC7841(DAC). Power failure protection of Fan The alarm output signals(PWM signals) from the fans are connected to IC4401(Color Manager) and IC4401 monitors the fan spinning speed for safety. When an abnormality occurs on any one of the fans, for example the fan spinning speed is lower than the specified speed, IC301 shuts down the projector. If a fan connector is not connected firmly, IC301 also shuts down the projector. Temperature sensor for Fan control TempA - TH902 around the intake fan "FN904"and "FN905" for outer temperature of the projector TempB - IC8841(above the lamp) on the Main board for optical parts TempC - TH901 on the polarized glass (IN-B) for panel and polarized glass temperature The temperature sensors measure surrounding temperature and sends data to IC301. IC301 controls the proper fan spinning speed based upon these temperature data. Also, when a temperature rises over a specified value, IC301 judges that there is abnormal internal temperature and turns off the projector.
FAN SPEED [rpm] (Max. FAN Spinning Speed) Lamp mode = NORMAL/ECO
(Min. FAN Spinning Speed)
TEMPERATURE [ºC] (Min. Setting Temperature) (Max. Setting Temperature) (Shutdown Setting Temperature) FAN SPEED [rpm] Lamp mode = AUTO (Max. Lamp Power) (Min. Lamp Power)
The fan spinning speed is controlled with the temperature and the lamp power.
(Min. Setting Temperature) (Max. Setting Temperature)
TEMPERATURE [ºC]
(Shutdown Setting Temperature)
Temperature vs Fan spinning speed
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Power Supply Lines
Power supply circuit and Protection circuit
FN901
K78A
1 2
FN902
K78B
1 2
FN903
K78C
1 2
FN904
K78D
1 2
FN905
K78E
1 2
IC7831
IC7831
IC7831
IC7831
IC7831
MAIN BOARD
FAN_MTR1-5
S16V_F
Q6631
FAN_CONT1
FAN1 TPFAN1 FAN2
FAN_CONT2
IC4401 COLOR MANAGER
Q6641 IC6601
FAN_SW
Q6651
FAN_CONT3
TPFAN2 FAN3 TPFAN3 FAN4 TPFAN4 Q4601
5V_SW
IC6621
FAN_SW
Q6661
FAN_CONT4
6.5V
IC4641 IC8846
5V 5VT
D898
Q591
15.5V
15V_SW
D893 BLUE LCD PANEL GREEN LCD PANEL RED LCD PANEL
K35B
IC1581 Q4603 UNIT_POWER
CN202 K8C
12V -5V 3.3V_D 3.3V_A
5V_SW
D896 D891
K35G
FAN14,5V
S16V_F
IC8251 IC8281
IC8261 IC8291
1.8V_D 1.8V_A
D885 D880
1-2
1-2
PRIMARY CIRCUIT
S16V
T101 CONVERTER TRANS.
K35R
CN201
K8A
S16V S6.5V S5V S-5V Q3631 IC3431 IC8071
6 9-10 3-4
6 9-10 3-4
S6.5V S5V S-5V
PC103
S3.3VFPG S3.3VSI 3.3V 1.2V S1.5V
L3432 L1401 IC8081 L1401 L1401 L478 L1401 L479 L3433 L1401 L3434 L1401
S3.3VPA S1.8VSI 3.3VGA 1.2VGA S1.5VFPG S1.5VPA S1.5VPG D884 D882
Power Fail: L P_FAIL
D887/8 D878 D875
15.5V
12 1
12 1
MAINON_SW Lamp-On : H
Q3641 Q3651 IC3601
IC101 POWER OSC.
BRIDGE DIODE
CN101 K6A
CN203
K8B
PC101
PWR_SW Power-On : H
3
3
T301 CONVERTER TRANS.
IC301 POWER OSC.
SS5V
SS5V Q5621 Q5641 Q5661
1
1
3.3V_SW
S3.3VPW S2.6VPW S1.8VPW
L3436
P .F. CONTROL
IC871 COMPARATOR
PFAIL_LV/HV
CN102
IC5601 D8101 5VHDMI0 D8103 D8133 5VHDMI1 D8131
FAN_CONT1 FAN_CONT2 FAN_CONT3 FAN_CONT4
15 14 13 12 81 80 79 336 76
Power Fail : L
D8102 5VDDC0 5VDDC1 R8104 5VDDC R8105
D8132
5
CN101
IC7841 DAC IC301 SYSTEM CONTROL
1 268
UNIT_LAMP BALLAST
IC1801 BUFFER
6 7
RFAIL_LV P_KEY_PW
Power-On : H FAN_SW Lamp-On : H MAINON_SW Stand-by : L 15V_SW Stand-by : L 5V_SW Stand-by : L 3.3V_SW
CN201 K8P
LAMP_ERR Lamp Error : H
FILTER FILTER BOARD
MAINS SW
K601 AC INPUT
IC2891 BUFFER
P15V
375V
3 3
R/C_PW
power-On : H
5V
Lamp Error: H RX_LAMP TX_LAMP LAMP_SW
20 12 12 3 5 18 17 16 2 4 21 22
PWR_SW
13
SS5V
LAMP_PWM LAMP_ERR
FUSE
IGNITOR
PC202 PC201 PC203
10 8
IC4801 SUB CPU
IC4833 INVERTER
1 5 4
1 5 4
P_KEY_PW
R/C
RFAIL_LV
Lamp-On : L
K8R K8Q K8803
IC4831, IC4832, IC2821
DOOR_SW1/2
K8J K28D
K8D K28A
SW8803 SW902 THERMAL SW LAMP SW LAMP SW BOARD RECEIVER R/C BOARD POWER KEY CONTROL BOARD
-80-