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It´s very very nice manual with all, what i need. Original in good quality. Very fast business. Very much thanks...
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Purchased the manual that I was looking for at a great price and could download it easily.. Great service experience and for future purchases I plan to use the site.
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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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7.1.5 Circuit Description
A
1 Protection circuit when the edge of speaker is oveload
R325 330 R317 0.22
3 FAN detection circuit
CN305 +5.6V R405 R407 10k 1k C402 0.01
POWER Assy A
FL
FAN+ FANFAN.STOP
1 2 3
D401 R408 100k
B
R327 1.8k D301 Q305
To µ-COM FAN DCT
FRONT Assy
SP edge GND FL +5V R4243 10k To µ-COM ODCT
D410 UDZS5.1B
D303 DAP202K
When FAN is not connected between FAN+ and FAN-, or an alien substance is clogged up in the FAN at the FAN LOCK status, FAN STOP becomes the same electric potential as the FAN- (Low). � µ-COM detects it, and turn the power OFF.
B
A speaker (6�) is connected between FL and GNDFL normally. Q305 (306) (345) (346) (383) does not work because the voltage of A point is higher than B point. If a resistance value between FL and GNDFL becomes less than 1.2�, Q305 (306) (345) (346) (383) turns ON. And ODCT becomes with negative component of output level. � µ-COM detects it, and turn the power OFF.
C
2 DC detection circuit of SP terminal
R331 22k FL R332 22k FR R371 22k RL R372 22k RR DDCT R392 22k C R396 10k C391 220/10 Q384 Q385 +5V
POWER Assy
R4244 47k
D
FRONT Assy
� Q384 and Q385 are turning OFF together normally. (1) When the DC voltage of the plus (+) side was generated on the SP edge When the DC voltage of the plus (+) side was generated in L ch or R ch, Q384 turns ON and DDCT becomes Low level if VB of Q384 becomes higher than operating point. � µ-COM detects it, and turn the power OFF. (2) When the DC voltage of the minus (-) side was generated on the SP edge Q385 turns ON with + side in reverse, and DDCT works.
E
F
58
1 2
VSX-C100-S
3 4
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