Shopping cart is empty
 
English Polski Spanish 
Search For a Manual
 

(e.g. AA-V20EG JVC, ZX-7 Sony )
PayPal 1000+ rating Secure, Encrypted Checkout.
 
Who's Online
There currently are 271 guests online.
Categories
Information
Featured Product
Home >> PIONEER >> HTZSW7 II Service Manual
 
 0 item(s) in your cart 

PIONEER HTZSW7 II
Service Manual


Tweet about this product and get $1.00 of store credit for instant use!
  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of PIONEER HTZSW7 II Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

Not yet ready
You must purchase it first

Customer Reviews
There are currently no product reviews.
Other Reviews
 1240 TEKTRONIX Service Manual by Rob Modeste;
This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
 34 TRIADE ORION Service Manual by Matteo Vannini;
Wellll again thank you very much fast and effective. Clear and well done for such an old TV!!!!
 AU-D101 SANSUI Service Manual by Adrian Davies;
It has all the information you will need to fix it. The main circuit diagram is only A4 but being a PDF, you can print it to any size - I did it on two sheets of A3 and it didnt lose any detail - just made it readable when pinned up above the bench. I've found the fault, just need to buy some obscure bits to get it going again! I cant fault the process, I paid for the manual in the morning and it was ready to download by lunch time.
 VSX455 PIONEER Service Manual by Meyer M Rochwerger;
Very good copy in a 54 pages PDF archive. This is my sixth purchase here. :)
 RF1150LB PANASONIC Service Manual by Meyer M Rochwerger;
Another excellent buy! File too clear and explanatory.

Text excerpt from page 106 (click to view)
HTZ-7, HTZ-C7, HTZ-SW7

7.2 DIAGNOSIS
7.2.1 FAIL-SAFE DVD Center Unit (HTZ-C7)
1. System Reset after Detection Check of the power supply line (3.3 V line) (AD3: Pin 32)
Fail-safe for prevention of crashing of the DVD microcomputer (system controller) with occurrence of power supply ripples. (ADC read value for the power supply voltage of the player section at the time of power ON) System reset is applied when the threshold value is not reached six times in a row during power ON. Operation explanation The power supplied to the DVD assembly is composed of the three types +12 V, +5 V, and +3.3 V, and of these, the 3.3 V system is detected at all times. In the following diagram, dropping of the +3.3 V system to 3 V or less because of power supply trouble is detected, and the power supply is switched off.
Trouble (sag etc.) occurrence 3.3V 0.3V Power OFF and rapid drop
–12V (M)

The microcomputer at all times monitors pin §, and when this becomes low level, forced entry into standby mode is performed and the power supply of the set is switched off.
+5V +12V (M) FAN R5584 Q5513 R5586 R5585 D5509 R5587 Q5512 R5575 31 IC5501 µ-com

R5056 R5053

Fan Detection Circuit

Communication error with the DVD system controller
A system reset is applied when serial communication with the DVD system controller fails 32 times in a row.

2. Stop Mode after Detection (The appearance is a simple system reset.) Check of the AV control power supply line (5.6 [V] line) from the powered subwoofer unit (AD1: Pin 30)
When the power supply for the AV controller drops off, the AV controller enters stop mode and memory backup is performed. When the ADC read value for the power supply voltage twice in a row drops below the threshold value, stop mode (power saving mode) is entered and the memory contents are backed up.

Powered subwoofer (HTZ-SW7)
Power ON Power OFF

3.3 V system Trouble Detection

1. Power OFF after Detection DVD center display communication interruption
Power OFF is performed when the REQ edge of the DVD center display communication is interrupted for 1.5 sec. (The count value of the internal 1 ms timer is used for the judgment.)

Check of the power supply line (5 V line) (AD6: Pin 35)
Fail-safe at the time of disconnection from the power outlet. As the power for the AV controller is supplied from the powered subwoofer section, this kind of fail-safe becomes necessary. A system reset is applied when the ADC read value for the power supply voltage of the DVD center unit twice in a row drops below the threshold value.

Overcurrent detection
Power OFF is performed when the overcurrent detection port (always “H” while the power is ON) becomes “L”. (Judgment is performed once with the main loop.)

Abnormal temperature detection Cooling fan trouble detection (AD2: Pin 31)
When the cooling fan stops to run because of a defect, entry of foreign matter, etc. and energization is continued, there is the possibility of burning, so that a circuit for detection of this condition is included. A system reset is applied when the ADC read value for the cooling fan operation detection port twice in a row drops below the threshold value. Operation explanation When the fan is operating in the fan detection circuit, a current flows, so that a potential difference occurs at R5056 and Q5515 becomes ON. In this case, the anode potential of D5509 is – (minus), so that the potential becomes a reverse maximum voltage and D5509 does not open. Accordingly, Q5512 is OFF and pin 3 of the microcomputer reaches high level. When the fan rotation stops, Q5513 becomes OFF and the potential at C becomes +. Then D5509 becomes ON, and as the result, Q5512 becomes ON. Then pin § of the microcomputer becomes low level. An abnormal temperature is judged to exist when one of the abnormal temperature detection ports (A/D input, 2 ports) becomes 4.3 V or higher, and then the power is switched off. (Judgment is performed once with the main loop.)

Overvoltage detection
An overvoltage is judged to exist when the overvoltage detection port (A/D input port) drops to 3.5 V or less, and then the power is switched off. (Judgment is performed once with the main loop.)

2. System Reset after Detection Abnormal AC pulse
When the AC pulses have been interrupted for 2 pulses, reset start is performed. (Judgment is performed once with the main loop.)

106

You might also want to buy

$4.99

SX-K700 TECHNICS
Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file aft…

$4.99

CJ-V51 PIONEER
Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…

$4.99

SX-PR602 TECHNICS
Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…

$4.99

AG7330 PANASONIC
Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…

$4.99

AG-7500 PANASONIC
Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file aft…

$4.99

HC-P4752W SAMSUNG
Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…

$4.99

SX-KN2000 TECHNICS
Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…

$4.99

VSX-95 PIONEER
Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
>
Parse Time: 0.136 - Number of Queries: 131 - Query Time: 0.027